Harry Potter is about to start his fifth year at Hogwarts School of Witchcraft and Wizardry. Unlike most school boys, Harry never enjoys his summer holidays, but this summer is even worse than usual. He is beginning to think he must do something, anything, to change his situation, when the summer holidays come to an end in a very dramatic fashion. What Harry is about to discover in his new year at Hogwarts will turn his world upside down.