Conundrum (Doctor Who)
Conundrum is an original novel written by Steve Lyons and based on the long-running British science fiction television series Doctor Who. It features the Seventh Doctor, Ace and Bernice. A prelude to the novel, also penned by Lyons, appeared in Doctor Who Magazine #208. This novel is the fourth book in the "Alternate Universe cycle" which continues until No Future.
Read more about Conundrum (Doctor Who): Plot, Continuity