Ever wake up in someone else's body?

Fourteen-year-old Alex Gray wakes up one morning to discover he's not in his own bedroom. More surprising is that he doesn't recognize his hands, or his legs... When he looks in the mirror he gets the shock of his life! How is it possible that Alex has become another boy - a boy who everyone calls Philip? And how have six whole months passed overnight? A riveting psychological thriller by a brilliant new voice in children's books.