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) that they were married; in "The Name of the Doctor", the Doctor refers to her as his "wife" after seeing a grave stone with her name on it, after initially answering "yes" when Clara asks if she was an "ex". In The End of Time the Tenth Doctor mentions marrying Queen Elizabeth I and implies that they had sex, stating: "her nickname [the Virgin Queen] is no longer...". The joke continues in "The Beast Below", featuring future British monarch Queen Elizabeth X or Liz Ten, and the marriage is finally shown in "The Day of the Doctor" during an adventure