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
Great Architect of the Universe the creation of undoubtedly wonderful architecture and engineering. The concept of God as the Great Architect of the Universe has been used many times within Christianity. An illustration of God as the architect of the universe can be found in a Bible from the Middle Ages and the comparison of God to an architect has been used by Christian apologists and teachers. Thomas Aquinas said in the Summa: "God, Who is the first principle of all things, may be compared to things created "as the architect is to things designed" ("ut artifex ad artificiata")." Commentators have pointed out that the