From the bestselling author of Charlie and the Chocolate Factory and Matilda comes the story of a boy, his dad, and a daring expedition. Just as important, it's the story of the love between a father and his son.

Danny has a life that any boy would love--his home is a caravan, he's the youngest car mechanic around, and his best friend is his dad, who never runs out of wonderful stories to tell. But one night Danny discovers a shocking secret that his father has kept hidden for years. Soon Danny finds himself the mastermind behind the most incredible plot ever attempted against nasty Victor Hazell, a wealthy landowner with a bad attitude. Can they pull it off? If so, Danny will truly be the champion of the world.