Boom!

An explosive, highly-charged and hilarious adventure from Mark Haddon, acclaimed author of THE CURIOUS INCIDENT OF THE DOG IN THE NIGHT-TIME. From the moment that Jim and his best friend Charlie bug the staffroom and overhear two of their teachers speaking to each other in a secret language, they know there's an adventure on its way. But what does "spudvetch" mean, and why do Mr Kidd's eyes flicker with fluorescent blue light when Charlie says it to him? There really is an adventure on its way and it can only end in one way . . . with a BOOM!