Goblin ship
The goblin ship was a spaceship that a group of time-riding Goblins used to travel through time to steal babies that were intervwoven with coincidences and luck. The more coincidences occurred, the more the ship could travel in time and create alternate timelines.
The Fifteenth Doctor inferred that these Goblins were "the legacy" of the Toymaker, whose legions had followed him (PROSE: The Church on Ruby Road [+]Loading...{"page":"100","chaptnum":"Thirteen","1":"The Church on Ruby Road (novelisation)"}) into the universe after the Fourteenth Doctor inadvertently summoned him at the edge of the universe. (TV: Wild Blue Yonder [+]Loading...["Wild Blue Yonder (TV story)"], The Giggle [+]Loading...["The Giggle (TV story)"])
On board the ship, it had doors, a ventilation system, a holding cell for prisoners and a canteen area where the Goblin King ate the babies his followers brought before him. In this canteen, there was also a stage that Janis used to perform for the king before eating. As the Doctor deduced, he and Ruby Sunday could use the rope to travel through the ship and also disable it completely by unhooking the master rope to free Lulubelle on Christmas Eve, 2023.
The ship seemingly disintegrated when the Doctor used his intelligent gloves to pierce the ship and the Goblin King on a church spire in 2004. (TV: The Church on Ruby Road [+]Loading...["The Church on Ruby Road (TV story)"]) As the Doctor negated a cracked timeline created by the Goblins, they themselves faded from view, as though they had been erased from existence, or pulled back into another world. (PROSE: The Church on Ruby Road [+]Loading...{"page":"137","chaptnum":"Eighteen","1":"The Church on Ruby Road (novelisation)"})