"Dark Planet" is a BBC Books adventure book written by Davey Moore and is based on the long-running British science fiction television series Doctor Who.It features the Tenth Doctor and Martha. This one was set on a future version of Earth where society was split in half and some people stayed underground and the rest high above on land dangerously close to the Sun.This is part of the Decide Your Destiny series which lets the reader choose what happens in the books.