You can't touch them, you can't eat them, you can't sit on them and on their own they mean absolutely nothing. But the more we know about numbers, the more we realise that everything in the universe depends on them!

This guide takes you to the secret world of trick numbers, weird numbers, lucky numbers, ridiculously big numbers, numbers that you can't write down - there's even ghostly numbers and pairs of numbers in love!

Meet the man who changed maths history by just doing 2 sums on a blackboard, learn how to tell your fortune with numbers, and discover two ways that you could become famous for ever. Find out how Brett Shuffler tries to cheat at cards, why 13 is unlucky for Blade and the gang, how Auntie Crystal's enchanted quilt affects the whole of Fogsworth manor...