"David Solomons's zany, inimitable wit makes for a series of capers that are thrilling and satisfying."- The Guardian on The Secret in Vault 13

An ancient artifact buried deep within the TARDIS leads the Doctor back to London, where a deadly predator prowls the tunnels beneath the city. As the Time Lord and her friends investigate, they uncover a mystery that will take them from a secret mountain base to the depths of the ocean - and if they cannot solve it, one of them will perish.

In order to save her friend, the Doctor must solve the riddle of ... the Maze of Doom!

David Solomons