Paradise Towers two elderly residents ("rezzies") live. Tilda and Tabby explain that all the able-bodied men left the Towers to fight a war, leaving behind only children and the elderly. The only other man still loose in the Towers is Pex, a would-be hero, who appoints himself Mel's guardian. At the Caretaker control centre, the Doctor meets the Chief Caretaker, who greets him as the Great Architect, designer of Paradise Towers, and then promptly calls for him to be killed The Doctor cites an imaginary rule from the Caretakers' manual, confusing them enough to make his escape. Mel and Pex meanwhile have
The Doctor (Doctor Who) the final scene of "The Name of the Doctor" by John Hurt. Davies's 2018 novelisation of his debut episode "Rose" states that the Doctor's future incarnations include "a tall, bald black woman wielding a flaming sword" and "a young girl or boy in a hi-tech wheelchair with what looked like a robot dog at their side". It was established in "The Deadly Assassin" (1976) that a Time Lord can regenerate twelve times before permanently dying – a total of thirteen incarnations. The 20th Anniversary special, the 1996 television film and the 2013 special "The Time of the Doctor" all confirm