You don't travel across time and space for thousands of years rescuing the universe without solving a few problems.
For the first time you can test yourself against The Doctor with this collection of of inter-planetary posers, mindbenders, brainteasers and mysteries.
From codes, sequences and lateral thinking, to logic problems and language games, there are puzzles for all levels, from beginner to expert. This official puzzle book is your chance to learn how to think like a Gallifreyan and see if you're clever enough to save the universe using only your mind.