Castrovalva (TV story): Difference between revisions

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===Part One===
===Part One===
[[Image:Castrovalva_part1.JPG|150px|thumb|right|The new Doctor with Adric ]]
[[Image:Castrovalva_part1.JPG|150px|thumb|right|The new Doctor with Adric ]]
Following his [[regeneration]] from the end of Logopolis, [[Fifth Doctor|the Doctor]] and his companions return to the [[the Doctor's TARDIS|TARDIS]] avoiding the radio telescope's security guards. Just before they can depart, [[Adric]] is seemingly attacked by [[the Master's TARDIS]], currently disguised as a Corinthian column. Adric is brought into the TARDIS which then dematerialises. The Doctor acts oddly due to the after effects of his regeneration and asks to be taken to the [[Zero Room]], [[Time Lord]] healing technology. In his delirium, the Doctor makes various comments about previous companions such as the recently departed [[Romana]].
The Doctor collapses as his companions try to carry him back to the TARDIS, and they are all captured by the Pharos Project guards. The unconscious Doctor is loaded into an ambulance while his companions are frisked for weapons. Adric tries to convince the sceptical guards that he and his friends are alien intelligences who came in answer to the Pharos Project's call, and manages to distract them long enough for Tegan and Nyssa to steal the ambulance and drive it to the TARDIS. Once inside, the Doctor regains consciousness and bolts into the corridors -- but before Tegan and Nyssa can follow him, the Master's TARDIS materializes outside, and bolts of energy strike down Adric and the guards. Tegan and Nyssa emerge from the TARDIS just as the Master's vanishes, leaving a stunned Adric amongst the unconscious bodies of the guards. Tegan and Nyssa usher him into the TARDIS, where he immediately crosses to the console and sets the controls for flight. Without so much as a word of thanks Adric then sets off to join the Doctor, who is unravelling his old clothing to leave a trail as he searches his ship for its Zero Room. The Doctor's erratic personality is beginning to disintegrate, and he drifts through behavioural traits of his previous incarnations, calls Adric by the names of former companions -- and realizes that his regeneration is failing...  


Meanwhile, without the Doctor to pilot the ship, [[Tegan Jovanka|Tegan]] investigates the TARDIS's controls and finds a computer system which gives her instructions on how to fly it. She notices that their preset destination is listed as [[hydrogen]] inrush — [[Event One]].
While waiting for the Doctor and Adric to return, Tegan and Nyssa discover the TARDIS data bank and try to find its index file. The frustrated Tegan eventually points out that if they had an index file they could look up the index file in the index file under "index file". Nyssa points out that this is a perfect example of the mathematical concept of recursion, and Tegan, musing on the power of the word "if", realizes that "I.F." stands for "Index File". They are thus able to access the TARDIS' destination setting and determine that they are on a programmed course and unlikely to crash. But they have no idea what "Hydrogen Inrush : Event One" means.  


Having found a new attire - a cricketer's outfit, the Doctor enters the Zero Room. After giving instructions to [[Nyssa]] and Tegan, they see an image of Adric who has been trapped in some sort of web by [[the Master]]. As the TARDIS travellers find themselves being drawn into the event marking the creation of the galaxy, the Master appears to them on the [[TARDIS scanner]] to gloat at their imminent demise...
The oddly unresponsive Adric abandons the Doctor in the corridors and sets off in search of the Zero Room on his own, growing ever more worried and panicky as he does so. The Master, watching from the safety of his own TARDIS, is amused by his behaviour, knowing Adric will never be free until their task is complete. The Doctor, left to his own devices, finds a room filled with cricketing equipment and changes into a cricket outfit and a beige trenchcoat. He then hears the distant sound of the Zero Room door slamming shut, and rushes off to investigate, running into Tegan and Nyssa on the way. He is continuing to weaken and nearly collapses before Nyssa finds the Zero Room, an environment completely isolated from the rest of the Universe. Once cut off from the complexity of the outside world the Doctor's health is restored, although it will take quite some time for him to fully recover from the stress of his latest regeneration.
 
The Doctor drifts off to sleep, telling his companions that they will all have their parts to play in helping him to heal. But Tegan and Nyssa see Adric pinioned against a wall of the Zero Room -- and he warns them that he is in fact a Block Transfer Computation and that the real Adric is now a prisoner of the Master. The image of Adric breaks up while warning the girls to check the co-ordinates; the Master made him set a trap. Nyssa decides to investigate on her own, leaving Tegan to watch over the Doctor while she returns to the console room. On her way back, she notices that the ambient temperature in the corridors is increasing. Meanwhile, the Master muses over the curious fact that the image of Adric had nearly developed a will of its own towards the end.
 
The Doctor awakens, convinced that something is wrong somewhere -- and then the cloister bell begins to sound. He insists upon investigating but as soon as he steps out of the Zero Room he falls as though struck. Tegan orders him to remain in the Zero Room while she finds out what's going on. The Doctor is unable to remain in the Zero Room and do nothing, but when he emerges the TARDIS begins to buck under some sort of turbulence and throws him unconscious to the floor. Tegan arrives in the console room as the temperature continues to increase, to find that Nyssa has used the data bank to research the "Hydrogen Inrush" -- and has discovered that Adric programmed the TARDIS to travel back in Time to the creation of the galaxy. As the TARDIS begins to shake with turbulence, the Master appears on the TARDIS' scanner, gloating, as Adric hangs pinioned in a web of power lines in the background...  


===Part Two===
===Part Two===
[[Image:st--5z28.jpg|thumb|left|150px||[[Castrovalva]], a dwelling of simplicity in [[Andromeda Galaxy|Andromeda]]]]
[[Image:st--5z28.jpg|thumb|left|150px||[[Castrovalva]], a dwelling of simplicity in [[Andromeda Galaxy|Andromeda]]]]
The Doctor emerges from the Zero Room and by jettisoning 25% of the TARDIS's rooms manages to save them from destruction, however one of the ejected rooms was the Zero Room. Meanwhile, the Master reveals to the trapped Adric that he has a further trap set for the Doctor.  
Nyssa turns off the scanner screen so she won't have to see the Master any longer, and she and Tegan try to find some way of escaping from the time pressure of Event One. The Master, meanwhile, hovers nearby in Time and Space, using Adric as a source of mathematical calculations to generate Block Transfer Computations. He attempts to visualise the destruction of the Doctor's TARDIS, but Adric's resistance interferes with the reception. The Master suggests that as the Doctor is doomed, Adric might as well join forces with him and co-operate willingly... and after some thought, Adric agrees.  


Tegan searches the TARDIS computer systems and finds a place named the [[Dwellings of Simplicity]] on [[Castrovalva]] which will be a suitable place for the Doctor to recover from his regeneration.
The Doctor regains consciousness as turbulence drops medical supplies from a TARDIS roundel onto his head and sends an electric wheelchair rolling down the corridor towards him. He manages to get to the console room, where Nyssa realizes that the neurochemical reactions stimulated by the crisis have focussed his concentration. For the moment at least, he is thinking clearly, and he sends Nyssa to vent the TARDIS' thermal buffers while showing Tegan how to use the Architectural Configuration. If they delete a quarter of the TARDIS' internal structure they will generate enough power and thrust to escape the time pressure of Event One. But as the temperature inside the TARDIS returns to normal the Doctor's body chemistry stabilises -- and he loses consciousness before he can explain how to ensure that the console room is not deleted. Tegan and Nyssa have no choice but to delete a quarter of the TARDIS at random...  


The companions make a cabinet from the remains of the Zero Room. Upon arriving at Castrovalva carry the coffin-like [[Zero Cabinet|cabinet]] containing the Doctor out of the TARDIS and start to search for the Dwellings. Soon they spy a figure wearing brightly coloured armour, so they hide the box. On returning to the box however, they find the Doctor has vanished…
The Master watches and gloats as the TARDIS is apparently destroyed in the nexus of Event One. He prepares to release Adric from the power web, as he no longer requires his backup plan -- or so he thinks until he finds residual power in the Hadron lines, revealing that Adric is picking up an image and hiding it from him. He boosts power through the web, burning through Adric's resistance -- and revealing that the TARDIS has survived and escaped Event One after all.
 
Tegan and Nyssa look up information on failed regenerations in the TARDIS data bank, and find a suggestion that Time Lords can relax in Dwellings of Simplicity with little or no technological advancement. The suggested location is Castrovalva, a small town on a planet in Andromeda. Tegan prepares to pilot the TARDIS to Castrovalva while Nyssa returns the Doctor to the Zero Room. The Doctor, sceptical that Tegan can actually pilot the complex time machine, is convinced that someone else is responsible for the journey -- although he can't think of who might be. But he soon has a greater problem, as Nyssa opens the doors of the Zero Room to reveal that it has been jettisoned...  
 
Tegan apparently manages to pilot the TARDIS to Castrovalva and lands in the forest outside, materializing the ship on an angle. Meanwhile, the Doctor has given his sonic screwdriver to Nyssa and told her to take the doors off the wall -- and when the ship touches down the door of the Zero Room falls off its loosened hinges and balances against the wall. The Doctor, partially shielded underneath, begins to recover and is finally able to explain that they can build a Zero Cabinet out of the pieces of the Zero Room which remain. Nyssa and Tegan then prepare to carry the Zero Cabinet to Castrovalva, balancing it on the electric wheelchair; but as the journey progresses they accidentally knock the wheelchair into a creek, shorting out its motor and locking its wheels. Nyssa falls into the creek while retrieving the wheelchair and finds that her ion bonder is now waterlogged. Unable to repair the wheelchair, they are forced to continue their journey on foot -- unaware that they are being observed...
 
As evening approaches, Tegan spots Castrovalva in the distance, a walled city atop a tall cliff. Nyssa hides the Zero Cabinet under a covering of leaves, just in case, and she and Tegan set off to look for a way in -- unaware that nearby, spear-carrying warriors dressed in feathered suits of armour have observed their arrival and are discussing what to do about it. The Doctor, unaware of the warriors' presence, opens the Cabinet. Soon afterwards, Nyssa and Tegan return, having failed to find an easy way into the city -- only to find blood on the ground, the Cabinet open, and the Doctor missing...


===Part Three===
===Part Three===
[[Image:Castrovalva_title.jpg|thumb|right|150px|The Doctor in the mysterious city of [[Castrovalva]]]]
[[Image:Castrovalva_title.jpg|thumb|right|150px|The Doctor in the mysterious city of [[Castrovalva]]]]
Nyssa and Tegan follow a trail of blood and find a citadel. They see the Doctor ahead but he is surrounded by warriors who take him into the city, leaving the girls to ascend the high rocky walls.
Nyssa and Tegan follow the trail of blood away from the Cabinet, trying to find the Doctor while avoiding the feathered warriors in the forest. They eventually spot the Doctor some distance away, but although they call out to him he doesn't recognize his own name -- all he knows is that he, too, is looking for someone called "the Doctor". He follows the trail of blood to a doorway in the cliff, where a group of warriors who have killed a wild pig are waiting for their fellow, Ruther, to arrive. Ruther's group arrives carrying the Zero Cabinet, and Ruther finds the Doctor hiding in the bushes. The warriors take the Doctor into Castrovalva with them, and Nyssa and Tegan arrive seconds too late as the door seals itself shut.  


In the city, the Doctor is questioned by [[Shardovan]] the librarian. Unable to answer their questions he is given a room, where he is then visited by the elderly [[Portreeve]]. Nyssa and Tegan arrive in the city and meet Shardovan. During the night, Adric is seen lurking in the Doctor's room. The next day, an image of Adric appears in a mirror to Nyssa, who warns her about the Master being in Castrovalva. He is actually still trapped in the Master's TARDIS.
The Doctor is surprised to find that Castrovalva is a pleasant, villa-like city with an open courtyard, tiled floors, and soft pastel colours in its walls and pillars. Furthermore, the "warriors" are all in fact placid, middle-aged men who are greeted upon their return by Shardovan, the dour town librarian. Castrovalva is in truth a most civilised town, and its inhabitants were merely engaged in an exercise programme and were wearing old suits of armour to stiffen their resolve for the hunt; Shardovan did not go as he is too tall to fit into the available armour. The Doctor, still uncertain as to his own identity, is taken to the guest rooms to spend the night; there, he is greeted by the Portreeve, a kind elderly man who oversees the daily life of Castrovalva. The Doctor drinks a medicinal tonic prescribed by the town's herbalist, Mergreave, and goes to sleep, assured by the Portreeve that he'll soon find the Doctor he seeks.  


The Doctor wakes up and is shown a magnificent tapestry by the Portreeve. The tapestry depicts scenes as they happen in the outside world. The Doctor soon realises that Adric is missing and sets out off to find him, but as they search the city of Castrovalva they keep finding themselves in the same courtyard.
Nyssa and Tegan scale the walls to get into Castrovalva, and are surprised when a rope ladder is lowered down to them. Inside, Shardovan decides not to tell the Portreeve about the new arrivals, and is unpleasantly surprised to find that the Portreeve is already aware of them and has been standing on the walkways above the courtyard all this time. Mergreave shows Tegan and Nyssa that the Doctor is sleeping peacefully and shows them to their own guest quarters. But Adric emerges from the shadows in the Doctor's room, and watches them go...  


Nyssa says it is as if space was folded in on itself, and the Doctor agrees. The Doctor looks out of the window he says that they are caught in a recursive occlusion. Someone is manipulating Castrovalva they are caught in a space-time trap…
The next morning, Nyssa leaves Tegan sleeping peacefully and sets off to explore Castrovalva. While passing through the courtyard she encounters a group of Castrovalvans carrying the Zero Cabinet, and redirects them to the Doctor's room. There, Adric appears to her, and warns her not to tell the Doctor about his kidnapping; it's important that the Doctor remain in Castrovalva until his regeneration is complete. Adric's image then breaks up, as the Doctor awakens, feeling much better. The Master is satisfied; now, they will remain untroubled by the Doctor's meddling.
 
The Doctor, Tegan and Nyssa breakfast with the Portreeve, and then Nyssa and Tegan set off to search the town library for books on telebiogenesis. Unfortunately, the library has no technical section, and they decide to read up on the history of Castrovalva instead. Meanwhile, the Portreeve shows the Doctor the source of his knowledge; an ancient tapestry designed with long-forgotten techniques, which reweaves itself to display events of great importance such as the Doctor's arrival. As the Doctor watches the images of Tegan and Nyssa carrying him through the forest he begins to get the impression that someone's missing; and a chance encounter with a young girl inspires him to remember Adric.
 
The Doctor returns to his room to confront Tegan and Nyssa, who are forced to admit what has happened. The Doctor insists upon leaving Castrovalva immediately to rescue Adric. They pass through the town square, where the women of Castrovalva are doing their laundry -- but find their path leading impossibly back to the square, no matter which direction they take. The Doctor collapses, suffering a relapse as a complex spatial distortion begins to take effect around him. Tegan and Nyssa manage to get him back to his room, only to find that the Zero Cabinet has been removed -- and outside the window, the distortion of Castrovalva is much more apparent. The town is deliberately folding in on itself, and the Doctor and his companions are trapped...


===Part Four===
===Part Four===
[[Image:Castrovalva_part4.JPG|150px|thumb|left|Something doesn't add up...]]
[[Image:Castrovalva_part4.JPG|150px|thumb|left|Something doesn't add up...]]
The Doctor questions two of Castrovalva's inhabitants, [[Mergrave]] and [[Ruther]], whether they are able to see the folding. When asked to show the position of his shop on a map, Mergrave indicates its position in four different places. Ruther does the same when asked to show where the Portreeve's house is. But, because they are part of Castrovalva, they cannot see that there is something wrong. The Doctor also realises that the history books of Castrovalva are all fakes — they appear to be 500 years old but chronicle events up to the present day.
The Doctor collapses, urging Nyssa and Tegan to find the Zero Cabinet. For the moment, he is able to block out the effect of the spatial anomaly by placing a silver-backed mirror in front of the window. While waiting for his companions to return he leafs through the history of Castrovalva and finds a piece of paper with some very curious implications. Mergreave arrives, and the Doctor questions him about the geography of Castrovalva. He doesn't seem to understand the Doctor's confusion until the Doctor has him draw a map of Castrovalva on the back of the mirror -- and he is taken aback to discover that he can locate his single pharmacy in four different locations on the map.  
 
Ruther leads Nyssa and Tegan in circles about the town but seems to see nothing amiss. Tegan is convinced that the people of Castrovalva are all involved in a conspiracy, but Nyssa suspects that they are also a part of the mathematical recursion affecting the town. They finally realize that the women in the square are doing their laundry in the Zero Cabinet and demand that it be returned to the Doctor. There, the Doctor tests Ruther, who is also surprised to find that he can find a single location in four places on the map. The Doctor is convinced that he's overlooking something obvious about the history of Castrovalva -- and the notes he's found, in Shardovan's handwriting, indicate that Shardovan also knows what it is. The Doctor suspects that the books are forgeries, to cover up something about Castrovalva's real history -- if indeed there is one...  
 
The Doctor requires answers from the Portreeve but must be carried to his home in the Zero Cabinet; but while Tegan ushers Mergreave and Ruther out of the room, the Doctor suggests an alternate plan to Nyssa. When Tegan and Nyssa emerge from the Doctor's rooms with the Cabinet, Tegan rebuffs Shardovan's offer to help carry the Cabinet. Shardovan is then lured away from the procession and confronted by the Doctor, who filled the Cabinet with all thirty volumes of the history of Castrovalva. He knows from Shardovan's notes and refusal to join the hunt that Shardovan suspects the whole history of Castrovalva is a fiction; but even the Doctor doesn't realize the extent of the fiction until Shardovan points out the obvious fact he's overlooked. The books are five hundred years old, but chronicle the history of Castrovalva to the present day. Shardovan takes the Doctor to the Portreeve's home, to break in and confirm the Doctor's suspicions about the true nature of Castrovalva.  


The Doctor creates a ruse by filling the Zero Room cabinet with the history books and has the cabinet taken to the Portreeve. As the Doctor breaks into the Portreeve's house, the Portreeve reveals himself to be the Master, and that it is he who has created the town of Castrovalva. Even its presence in the TARDIS computers was a trap created by the Master. Ruther and Mergrave confront the Master and the tapestry reveals its true power, that of Adric trapped in the web. The power to create comes from block-transfer computations, using Adric's mathematical genius.
The Portreeve dismisses all townspeople but Mergreave and Ruther, who stand by in confusion as the Portreeve sheds his disguise, revealing himself to be the Master. Castrovalva is a Block Transfer Computation, brought into existence and maintained by Adric's calculations; the entry in the TARDIS data bank was planted by Adric to lure the Doctor into the trap. The Master attempts to break into the Zero Cabinet, insanely determined to have one last look at the Doctor's face before he destroys him, but the Doctor breaks in and confronts him. The Doctor rips down the ever-changing tapestry to reveal Adric pinioned behind it in a web of power lines. The Doctor is powerless to stop the Master as he begins to dispose of the bait, casually causing Ruther to vanish when Ruther tries to attack him. But Shardovan demonstrates his free will by swinging from the balcony on the chandelier into the web, giving his life to break the strands and release Adric.  


Realising the true nature of Castrovalva's reality, Shardovan swings from a chandelier into the web, destroying it. The Master, seeing all is lost, flees to his TARDIS which was disguised as a fireplace. The Doctor and his companions flee from the city, but the Master appears to be trapped, unable to escape as the city collapses in on itself.
Without the support of Adric's constant calculation, the computation that is Castrovalva begins to collapse in upon itself. The Master tries to flee in his TARDIS, which was disguised as the Portreeve's fireplace, but space is folding in too fast and his TARDIS is unable to escape from Castrovalva. Mergreave tries to lead the Doctor and his friends to safety but soon even he can no longer find his way about -- but Adric, who created Castrovalva, can see clearly and guides his friends out through a breach in space onto the hillside. As the Master rushes for the breach, Mergreave remains to hold him back, and the Doctor is forced to watch helplessly as the breach closes up, trapping the Master along with the doomed Castrovalvans.  


The Doctor and his companions return to the TARDIS, where he pins his famous stick of celery on his left lapel. There, Nyssa asks the Doctor whether he feels up to flying the TARDIS. He thinks he is and actually thinks that he is beginning to feel his old self again. ''"Well whoever I feel like...it's absolutely splendid!"''
As Castrovalva disappears forever, the Doctor and his companions jog back to the TARDIS. There, the Doctor reveals to Tegan's disappointment that she did not pilot the TARDIS after all; the whole flight was preprogrammed by the Master and Adric. But she needn't worry about piloting the TARDIS away... the Doctor's regeneration is finally complete,and he feels absolutely splendid.


== Cast ==
== Cast ==

Revision as of 15:05, 12 April 2010

Welcome aboard, I'm the Doctor, or will be if this regeneration works out...The Doctor

Castrovalva was the first story of Season 19 of Doctor Who, and the first full television serial to feature Peter Davison as the Fifth Doctor. Beginning with this story, Doctor Who was moved from its traditional Saturday evening slot on BBC 1 to air twice weekly.

Synopsis

The Doctor's latest regeneration has proven more unstable than his previous ones. Adric has been captured by the Master, who is taking advantage of the Doctor's weakened state to ensnare him in an elaborate trap whose recursive nature threatens to destroy his mind.

Plot

Part One

The new Doctor with Adric

The Doctor collapses as his companions try to carry him back to the TARDIS, and they are all captured by the Pharos Project guards. The unconscious Doctor is loaded into an ambulance while his companions are frisked for weapons. Adric tries to convince the sceptical guards that he and his friends are alien intelligences who came in answer to the Pharos Project's call, and manages to distract them long enough for Tegan and Nyssa to steal the ambulance and drive it to the TARDIS. Once inside, the Doctor regains consciousness and bolts into the corridors -- but before Tegan and Nyssa can follow him, the Master's TARDIS materializes outside, and bolts of energy strike down Adric and the guards. Tegan and Nyssa emerge from the TARDIS just as the Master's vanishes, leaving a stunned Adric amongst the unconscious bodies of the guards. Tegan and Nyssa usher him into the TARDIS, where he immediately crosses to the console and sets the controls for flight. Without so much as a word of thanks Adric then sets off to join the Doctor, who is unravelling his old clothing to leave a trail as he searches his ship for its Zero Room. The Doctor's erratic personality is beginning to disintegrate, and he drifts through behavioural traits of his previous incarnations, calls Adric by the names of former companions -- and realizes that his regeneration is failing...

While waiting for the Doctor and Adric to return, Tegan and Nyssa discover the TARDIS data bank and try to find its index file. The frustrated Tegan eventually points out that if they had an index file they could look up the index file in the index file under "index file". Nyssa points out that this is a perfect example of the mathematical concept of recursion, and Tegan, musing on the power of the word "if", realizes that "I.F." stands for "Index File". They are thus able to access the TARDIS' destination setting and determine that they are on a programmed course and unlikely to crash. But they have no idea what "Hydrogen Inrush : Event One" means.

The oddly unresponsive Adric abandons the Doctor in the corridors and sets off in search of the Zero Room on his own, growing ever more worried and panicky as he does so. The Master, watching from the safety of his own TARDIS, is amused by his behaviour, knowing Adric will never be free until their task is complete. The Doctor, left to his own devices, finds a room filled with cricketing equipment and changes into a cricket outfit and a beige trenchcoat. He then hears the distant sound of the Zero Room door slamming shut, and rushes off to investigate, running into Tegan and Nyssa on the way. He is continuing to weaken and nearly collapses before Nyssa finds the Zero Room, an environment completely isolated from the rest of the Universe. Once cut off from the complexity of the outside world the Doctor's health is restored, although it will take quite some time for him to fully recover from the stress of his latest regeneration.

The Doctor drifts off to sleep, telling his companions that they will all have their parts to play in helping him to heal. But Tegan and Nyssa see Adric pinioned against a wall of the Zero Room -- and he warns them that he is in fact a Block Transfer Computation and that the real Adric is now a prisoner of the Master. The image of Adric breaks up while warning the girls to check the co-ordinates; the Master made him set a trap. Nyssa decides to investigate on her own, leaving Tegan to watch over the Doctor while she returns to the console room. On her way back, she notices that the ambient temperature in the corridors is increasing. Meanwhile, the Master muses over the curious fact that the image of Adric had nearly developed a will of its own towards the end.

The Doctor awakens, convinced that something is wrong somewhere -- and then the cloister bell begins to sound. He insists upon investigating but as soon as he steps out of the Zero Room he falls as though struck. Tegan orders him to remain in the Zero Room while she finds out what's going on. The Doctor is unable to remain in the Zero Room and do nothing, but when he emerges the TARDIS begins to buck under some sort of turbulence and throws him unconscious to the floor. Tegan arrives in the console room as the temperature continues to increase, to find that Nyssa has used the data bank to research the "Hydrogen Inrush" -- and has discovered that Adric programmed the TARDIS to travel back in Time to the creation of the galaxy. As the TARDIS begins to shake with turbulence, the Master appears on the TARDIS' scanner, gloating, as Adric hangs pinioned in a web of power lines in the background...

Part Two

File:St--5z28.jpg
Castrovalva, a dwelling of simplicity in Andromeda

Nyssa turns off the scanner screen so she won't have to see the Master any longer, and she and Tegan try to find some way of escaping from the time pressure of Event One. The Master, meanwhile, hovers nearby in Time and Space, using Adric as a source of mathematical calculations to generate Block Transfer Computations. He attempts to visualise the destruction of the Doctor's TARDIS, but Adric's resistance interferes with the reception. The Master suggests that as the Doctor is doomed, Adric might as well join forces with him and co-operate willingly... and after some thought, Adric agrees.

The Doctor regains consciousness as turbulence drops medical supplies from a TARDIS roundel onto his head and sends an electric wheelchair rolling down the corridor towards him. He manages to get to the console room, where Nyssa realizes that the neurochemical reactions stimulated by the crisis have focussed his concentration. For the moment at least, he is thinking clearly, and he sends Nyssa to vent the TARDIS' thermal buffers while showing Tegan how to use the Architectural Configuration. If they delete a quarter of the TARDIS' internal structure they will generate enough power and thrust to escape the time pressure of Event One. But as the temperature inside the TARDIS returns to normal the Doctor's body chemistry stabilises -- and he loses consciousness before he can explain how to ensure that the console room is not deleted. Tegan and Nyssa have no choice but to delete a quarter of the TARDIS at random...

The Master watches and gloats as the TARDIS is apparently destroyed in the nexus of Event One. He prepares to release Adric from the power web, as he no longer requires his backup plan -- or so he thinks until he finds residual power in the Hadron lines, revealing that Adric is picking up an image and hiding it from him. He boosts power through the web, burning through Adric's resistance -- and revealing that the TARDIS has survived and escaped Event One after all.

Tegan and Nyssa look up information on failed regenerations in the TARDIS data bank, and find a suggestion that Time Lords can relax in Dwellings of Simplicity with little or no technological advancement. The suggested location is Castrovalva, a small town on a planet in Andromeda. Tegan prepares to pilot the TARDIS to Castrovalva while Nyssa returns the Doctor to the Zero Room. The Doctor, sceptical that Tegan can actually pilot the complex time machine, is convinced that someone else is responsible for the journey -- although he can't think of who might be. But he soon has a greater problem, as Nyssa opens the doors of the Zero Room to reveal that it has been jettisoned...

Tegan apparently manages to pilot the TARDIS to Castrovalva and lands in the forest outside, materializing the ship on an angle. Meanwhile, the Doctor has given his sonic screwdriver to Nyssa and told her to take the doors off the wall -- and when the ship touches down the door of the Zero Room falls off its loosened hinges and balances against the wall. The Doctor, partially shielded underneath, begins to recover and is finally able to explain that they can build a Zero Cabinet out of the pieces of the Zero Room which remain. Nyssa and Tegan then prepare to carry the Zero Cabinet to Castrovalva, balancing it on the electric wheelchair; but as the journey progresses they accidentally knock the wheelchair into a creek, shorting out its motor and locking its wheels. Nyssa falls into the creek while retrieving the wheelchair and finds that her ion bonder is now waterlogged. Unable to repair the wheelchair, they are forced to continue their journey on foot -- unaware that they are being observed...

As evening approaches, Tegan spots Castrovalva in the distance, a walled city atop a tall cliff. Nyssa hides the Zero Cabinet under a covering of leaves, just in case, and she and Tegan set off to look for a way in -- unaware that nearby, spear-carrying warriors dressed in feathered suits of armour have observed their arrival and are discussing what to do about it. The Doctor, unaware of the warriors' presence, opens the Cabinet. Soon afterwards, Nyssa and Tegan return, having failed to find an easy way into the city -- only to find blood on the ground, the Cabinet open, and the Doctor missing...

Part Three

The Doctor in the mysterious city of Castrovalva

Nyssa and Tegan follow the trail of blood away from the Cabinet, trying to find the Doctor while avoiding the feathered warriors in the forest. They eventually spot the Doctor some distance away, but although they call out to him he doesn't recognize his own name -- all he knows is that he, too, is looking for someone called "the Doctor". He follows the trail of blood to a doorway in the cliff, where a group of warriors who have killed a wild pig are waiting for their fellow, Ruther, to arrive. Ruther's group arrives carrying the Zero Cabinet, and Ruther finds the Doctor hiding in the bushes. The warriors take the Doctor into Castrovalva with them, and Nyssa and Tegan arrive seconds too late as the door seals itself shut.

The Doctor is surprised to find that Castrovalva is a pleasant, villa-like city with an open courtyard, tiled floors, and soft pastel colours in its walls and pillars. Furthermore, the "warriors" are all in fact placid, middle-aged men who are greeted upon their return by Shardovan, the dour town librarian. Castrovalva is in truth a most civilised town, and its inhabitants were merely engaged in an exercise programme and were wearing old suits of armour to stiffen their resolve for the hunt; Shardovan did not go as he is too tall to fit into the available armour. The Doctor, still uncertain as to his own identity, is taken to the guest rooms to spend the night; there, he is greeted by the Portreeve, a kind elderly man who oversees the daily life of Castrovalva. The Doctor drinks a medicinal tonic prescribed by the town's herbalist, Mergreave, and goes to sleep, assured by the Portreeve that he'll soon find the Doctor he seeks.

Nyssa and Tegan scale the walls to get into Castrovalva, and are surprised when a rope ladder is lowered down to them. Inside, Shardovan decides not to tell the Portreeve about the new arrivals, and is unpleasantly surprised to find that the Portreeve is already aware of them and has been standing on the walkways above the courtyard all this time. Mergreave shows Tegan and Nyssa that the Doctor is sleeping peacefully and shows them to their own guest quarters. But Adric emerges from the shadows in the Doctor's room, and watches them go...

The next morning, Nyssa leaves Tegan sleeping peacefully and sets off to explore Castrovalva. While passing through the courtyard she encounters a group of Castrovalvans carrying the Zero Cabinet, and redirects them to the Doctor's room. There, Adric appears to her, and warns her not to tell the Doctor about his kidnapping; it's important that the Doctor remain in Castrovalva until his regeneration is complete. Adric's image then breaks up, as the Doctor awakens, feeling much better. The Master is satisfied; now, they will remain untroubled by the Doctor's meddling.

The Doctor, Tegan and Nyssa breakfast with the Portreeve, and then Nyssa and Tegan set off to search the town library for books on telebiogenesis. Unfortunately, the library has no technical section, and they decide to read up on the history of Castrovalva instead. Meanwhile, the Portreeve shows the Doctor the source of his knowledge; an ancient tapestry designed with long-forgotten techniques, which reweaves itself to display events of great importance such as the Doctor's arrival. As the Doctor watches the images of Tegan and Nyssa carrying him through the forest he begins to get the impression that someone's missing; and a chance encounter with a young girl inspires him to remember Adric.

The Doctor returns to his room to confront Tegan and Nyssa, who are forced to admit what has happened. The Doctor insists upon leaving Castrovalva immediately to rescue Adric. They pass through the town square, where the women of Castrovalva are doing their laundry -- but find their path leading impossibly back to the square, no matter which direction they take. The Doctor collapses, suffering a relapse as a complex spatial distortion begins to take effect around him. Tegan and Nyssa manage to get him back to his room, only to find that the Zero Cabinet has been removed -- and outside the window, the distortion of Castrovalva is much more apparent. The town is deliberately folding in on itself, and the Doctor and his companions are trapped...

Part Four

File:Castrovalva part4.JPG
Something doesn't add up...

The Doctor collapses, urging Nyssa and Tegan to find the Zero Cabinet. For the moment, he is able to block out the effect of the spatial anomaly by placing a silver-backed mirror in front of the window. While waiting for his companions to return he leafs through the history of Castrovalva and finds a piece of paper with some very curious implications. Mergreave arrives, and the Doctor questions him about the geography of Castrovalva. He doesn't seem to understand the Doctor's confusion until the Doctor has him draw a map of Castrovalva on the back of the mirror -- and he is taken aback to discover that he can locate his single pharmacy in four different locations on the map.

Ruther leads Nyssa and Tegan in circles about the town but seems to see nothing amiss. Tegan is convinced that the people of Castrovalva are all involved in a conspiracy, but Nyssa suspects that they are also a part of the mathematical recursion affecting the town. They finally realize that the women in the square are doing their laundry in the Zero Cabinet and demand that it be returned to the Doctor. There, the Doctor tests Ruther, who is also surprised to find that he can find a single location in four places on the map. The Doctor is convinced that he's overlooking something obvious about the history of Castrovalva -- and the notes he's found, in Shardovan's handwriting, indicate that Shardovan also knows what it is. The Doctor suspects that the books are forgeries, to cover up something about Castrovalva's real history -- if indeed there is one...

The Doctor requires answers from the Portreeve but must be carried to his home in the Zero Cabinet; but while Tegan ushers Mergreave and Ruther out of the room, the Doctor suggests an alternate plan to Nyssa. When Tegan and Nyssa emerge from the Doctor's rooms with the Cabinet, Tegan rebuffs Shardovan's offer to help carry the Cabinet. Shardovan is then lured away from the procession and confronted by the Doctor, who filled the Cabinet with all thirty volumes of the history of Castrovalva. He knows from Shardovan's notes and refusal to join the hunt that Shardovan suspects the whole history of Castrovalva is a fiction; but even the Doctor doesn't realize the extent of the fiction until Shardovan points out the obvious fact he's overlooked. The books are five hundred years old, but chronicle the history of Castrovalva to the present day. Shardovan takes the Doctor to the Portreeve's home, to break in and confirm the Doctor's suspicions about the true nature of Castrovalva.

The Portreeve dismisses all townspeople but Mergreave and Ruther, who stand by in confusion as the Portreeve sheds his disguise, revealing himself to be the Master. Castrovalva is a Block Transfer Computation, brought into existence and maintained by Adric's calculations; the entry in the TARDIS data bank was planted by Adric to lure the Doctor into the trap. The Master attempts to break into the Zero Cabinet, insanely determined to have one last look at the Doctor's face before he destroys him, but the Doctor breaks in and confronts him. The Doctor rips down the ever-changing tapestry to reveal Adric pinioned behind it in a web of power lines. The Doctor is powerless to stop the Master as he begins to dispose of the bait, casually causing Ruther to vanish when Ruther tries to attack him. But Shardovan demonstrates his free will by swinging from the balcony on the chandelier into the web, giving his life to break the strands and release Adric.

Without the support of Adric's constant calculation, the computation that is Castrovalva begins to collapse in upon itself. The Master tries to flee in his TARDIS, which was disguised as the Portreeve's fireplace, but space is folding in too fast and his TARDIS is unable to escape from Castrovalva. Mergreave tries to lead the Doctor and his friends to safety but soon even he can no longer find his way about -- but Adric, who created Castrovalva, can see clearly and guides his friends out through a breach in space onto the hillside. As the Master rushes for the breach, Mergreave remains to hold him back, and the Doctor is forced to watch helplessly as the breach closes up, trapping the Master along with the doomed Castrovalvans.

As Castrovalva disappears forever, the Doctor and his companions jog back to the TARDIS. There, the Doctor reveals to Tegan's disappointment that she did not pilot the TARDIS after all; the whole flight was preprogrammed by the Master and Adric. But she needn't worry about piloting the TARDIS away... the Doctor's regeneration is finally complete,and he feels absolutely splendid.

Cast

Production Crew

References

  • While he is still disoriented, the Doctor grasps his lapels, adopting the persona of his first incarnation, and addresses Adric as "Brigadier" and "Jamie", and Tegan as "Vicki" and "Jo". He mentions the Ice Warriors and K-9 as if they were present. He also urges Tegan and Nyssa not to "reverse the polarity of the neutron flow" — a catchphrase traditionally associated with the Third Doctor — and toys with a recorder, a trademark of the Second Doctor, whose persona he also briefly adopts. He also mentions visting Alzarius and Logopolis.

Technology

Theories and Concepts

Power Sources

Races and species

TARDIS Components

Story Notes

  • The working title for this story was The Visitor.
  • This is the first story to have the Doctor credited as "The Doctor" (rather than previously as "Doctor Who" or simply "Dr. Who").
  • For this story, the series was shifted from its traditional Saturday early evening transmission to a twice-weekly (Monday and Tuesday) slot. However, the format change was not well promoted, with the result that many regular viewers missed the second part. According to production notes on the DVD release, some parts of the UK saw the first part at a different time than the scheduled BBC broadcast, in some cases as early as mid-afternoon.
  • The Portreeve is listed in the credits as being played by "Neil Toynay", an anagram of "Tony Ainley". This was a play on the Master's habit of using either anagrams or synonyms for "Master" as aliases, used here to make the reveal of the Porteeve's identity a surprise.
  • The shot used in this story of the town of Castrovalva sitting on a cliffside was inspired by a print by M.C. Escher.
  • For the final scene, the script called for Adric to look "pallid" as he was still recovering from the effects of imprisonment by The Master. According to the commentary on the DVD, this was accidentally achieved by Matthew Waterhouse, who had a hangover from the night before from drinking too much Campari. Whilst the cameras were filming The Doctor and Tegan in conversation about who landed the TARDIS, Matthew was being sick behind a tree.
  • Part 1 was the first-ever Doctor Who episode to include a pre-credits sequence.
  • During part 2, Nyssa's costume gradually transforms into the standard outfit she would wear for the rest of the 1982 season: first, she exchanges her "fairy skirt" for a pair of trousers before she and Tegan begin carrying the portable Zero Room to Castrovalva; along the way, she abandons her velvet jacket, and finally she loses her ornamental hair-comb when it gets caught by a tree branch. By the time she and Tegan reach the base of the cliff, she is more-or-less outfitted as she would be for the remainder of the season.
  • The decision to have Peter Davison impersonate past Doctors was made during rehearsal when Davison presented impersonations as part of his preparation for taking on the role; his interpretation was intended to combine elements of the past Doctors.

Ratings

  • Part 1 - 10.1 million viewers
  • Part 2 - 8.7 million viewers
  • Part 3 - 10.4 million viewers
  • Part 4 - 10.5 million viewers

Filming Locations

  • Crowborough Wireless Telegraph Station (now known as Sussex Police Training Centre (Crowborough)), Duddleswell, East Sussex
  • Harrison's Rocks, Groombridge, East Sussex
  • Estate of Lord De La Warr, Buckhurst Park at Withyam, East Sussex
  • BBC Television Centre (TC1 & TC6), Shepherd's Bush, London

Production errors

As between Logopolis and Castrovalva

The first episode of this story is narratively continuous with the last scene of Logopolis. Yet the continuity supervision between the two productions was decidedly lax.

  • Peter Davison's Fourth Doctor costume has obviously different shoes than Tom Baker's. Baker was wearing high leather boots when he regenerated; Davison was wearing ankle-high shoes thereafter.
  • The TARDIS is in a different field from its last-seen position in Logopolis, and this movement is afforded no reasonable explanation by either script. Director Fiona Cumming simply failed to match Peter Grimwade's earlier shot. In fact, the two halves of the chase scene weren't even filmed at the same location.
  • Director Fiona Cumming cast different actors for the security guards chasing the companions at the start of episode one than Peter Grimwade had used at the end of Logopolis. When the chase is viewed as a continuous event, the scenes obviously don't match.
  • Nyssa and Tegan's handbags appear on the TARDIS console, not having been there in their final interior TARDIS scenes in Logopolis. In fact, Nyssa and Tegan were never present together in the TARDIS in the whole of Logopolis.

Problems unique to Castrovalva

  • In the Zero Room sequence, the image is horizontally flipped. This has the effect of making The Doctor's collar question marks appear reversed. The error was gleefully pointed out by Peter Davison in the DVD commentary.
  • Fiona Cumming's line-of-sight blocking is wrong in one sequence at the top of the first episode. Because of where Cumming has Janet Fielding and Sarah Sutton stand, Nyssa and Tegan are clearly able to see that Adric's physical position relative to the Master's TARDIS has changed. Where once he was standing several yards to the right of the ionic column, suddenly he's kneeling directly behind it. Oddly, they seem not to find this at all suspicious, despite the fact that they witnessed every other person affected by the energy emanating from the Master's TARDIS simply fall prone to the ground where they once stood. Ultimately, the scene is not credible because of Cumming's direction.
  • Later, on Castrovlva itself, the camera wobbles when Mergrave and Ruther go to see what causes a noise.

Continuity

  • This is the first Fifth Doctor story aired, although it was not the first to be filmed - Four to Doomsday, the following story, was first. Castrovalva was in fact filmed fourth.
  • Tom Baker appears in the opening sequence, a replay of the regeneration scene which ended Logopolis, but he is not listed in the credits.
  • New opening and closing title sequences are used, similar to the previous season's and again designed by Sid Sutton but this time incorporating Peter Davison's face in place of Tom Baker's.
  • The Fifth Doctor first dons his cricket uniform and his habit of pinning a stalk of celery to his lapel in this story, although he doesn't explain why until The Caves of Androzani, his final story.
  • Near the beginning of this story, the Doctor literally unravels the Fourth Doctor's famous scarf (and rips the waistcoat the Fourth Doctor wore in half). The Doctor is seen to take off a shoe and leave it as a landmark as he made his way through the TARDIS. These are not the same shoes worn by the Fourth Doctor in Logopolis, who wore knee-length buccaneer-style boots in that serial – the Doctor previously regenerated items of his clothes along with his body at the conclusion of The Tenth Planet, likewise has different shoes when he arrives newly regenerated in Spearhead from Space, the frills on his coat, when the Third Doctor regenerates into the Fourth in Planet of the Spiders, disappear as well and the Fourth Doctor, in Robot, wearing something like pyjamas with a different colour.
  • The story was the first of only four Doctor Who serials in the 1963-89 series to feature a pre-credits sequence (the others were The Five Doctors, Time and the Rani and Remembrance of the Daleks). In the 2005 series, pre-title sequences became a regular feature. The reprise from the final moments of the preceding story, Logopolis, had the incidental music changed from its original sombre melody to a more upbeat sound.

Timeline

DVD and Video Releases

DVD Releases

New beginnings.jpg

Released on DVD together with The Keeper of Traken and Logopolis as part of the New Beginnings DVD box set. Released:

Contents:

  • Commentary by Peter Davison, Janet Fielding, Christopher H. Bidmead and Fiona Cumming
  • Being Doctor Who - Peter Davison discusses how he approached this iconic role.
  • Directing Castrovalva - Fiona Cumming talks about her work directing Peter Davison's debut story.
  • The Crowded TARDIS - A look at the increase in the TARDIS crew, with Tom Baker, Peter Davison, Sarah Sutton, director John Black and Christopher H. Bidmead.
  • Swap Shop & Blue Peter - Peter Davison is interviewed on thesr two long-running magazine programmes.
  • Deleted Scenes - Two deleted sequences from the location filming.
  • Theme Music Video - A brand new remix is Peter Howell's Doctor Who theme music in stereo or Dolby 5.1 surround.
  • Trailers & Continuity Announcements
  • Radio Times Billings - Articles and listings from Radio Times (PDF DVD-ROM)
  • Doctor Who Annual 1982 (PDF DVD-ROM)
  • BBC Enterprises literature (PDF DVD-ROM)
  • Photo Gallery
  • Production subtitles

Notes:

Video Releases


Released on video in 1992.

Novelisation

Castrovalva novel.jpg
Main article: Castrovalva (novelisation)

See also

to be added

External Links

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