An insanely funny book from the author of The Curious Incident of the Dog in the Night-time.

Ben’s a born daydreamer. He’s much rather be in the Sahara, or on a Viking ship than sitting in a boring maths lesson. Then Agent Z appears on the scene - and THAT means secret missions, cunning plans and careful strategies. And soon Ben and his friends, Barney and Jenks, realize that life on planet earth is RATHER exciting after all!