You don't travel across time and space for thousands of years saving 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 and mysteries featuring all the incarnations of the legendary time-traveller. Will you be able to solve: Logic problems Word games Lateral-thinking riddles Pencil-and-paper games 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!