City at World's End

City at World's End is a BBC Books original novel written by Christopher Bulis and based on the long-running British science fiction television series Doctor Who. It features the First Doctor, Barbara, Ian, and Susan.

Plot
The Doctor and his three companions travel to Arkhaven. It is one of the last cities on a doomed alien planet. The city has one plan for survival, no backup. However, there are underlying plans threatening to sabotage this as various people vie for power the disaster might bring.

The Doctor then must deal with the 'Creeper', an entity prowling the outskirts of Arkhaven. His companions cannot help him, as one becomes lost and the other becomes mentally ill.