Philip Noble is an eleven-year-old in crisis. His pub landlord father has died in a road accident, and his mother is succumbing to the greasy charms of her dead husband's brother, Uncle Alan. The remaining certainties of Philip's life crumble away when his father's ghost appears in the pub and declares Uncle Alan murdered him. Arming himself with weapons from the school chemistry cupboard, Philip vows to carry out the ghost's relentless demands for revenge. But can the words of a ghost be trusted any more than the lies of the living?

Matt Haig is the number one bestselling author of "Reasons to Stay Alive" and seven other highly acclaimed books for adults, including "How to Stop Time," a Sunday Times bestseller, and "The Humans." As a writer for children and young adults, he has won the Blue Peter Book Award, the Smarties Book Prize, and has been shortlisted three times for the Carnegie Medal. His work has been published in forty languages.