Pyrovillia
The lead and infobox uses "Pyrovilia", but almost everywhere else uses "Pyrovillia". Which is the confirmed spelling?
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Pyrovilia was the home planet of the Pyroviles, a species of rock-based humanoids.
History
Pyrovillia was one of the 27 stolen planets the Daleks transported to the Medusa Cascade, and one of only three planets in this operation that were not taken from 2009. It was, instead, taken more than two thousand years earlier. The reason for the discrepancy was never revealed, although Davros may have been experimenting with his technology before taking all the planets at once from 2009. Presumably it was a hot and waterless world, as they intended the Earth to be after their invasion. (TV: The Fires of Pompeii)
By 2009, the disappearance of Pyrovilia was considered a cold case by the Shadow Proclamation. However, the Tenth Doctor and his companion Donna Noble factored in that while 24 other worlds had been stolen simultaneously, this one could have been taken from another time. It was then discovered by the Doctor that the planet was stolen by the Daleks and put in the Medusa Cascade along with twenty-six other worlds, including Adipose 3 and the lost moon of Poosh, which, like Pyrovillia, also went missing earlier to the mass planet disappearances. (TV: Partners in Crime, Midnight) When the Doctor and his companions had defeated the Daleks and Davros, they sent it back with the other planets to its rightful place. This was one of the ones returned by Donna Noble, who had gained Time Lord knowledge from a biological meta-crisis and knew how to send it back by manipulating the controls aboard Davros's flagship, the Crucible. (TV: The Stolen Earth/Journey's End)
Jack Harkness claimed the Icelandic race were of alien origin, possibly from the vicinity of Pyrovillia. They had crashed on Earth while investigating the volcanoes of Iceland. (AUDIO: The Sin Eaters)
