20 years of Harry Potter - to mark the anniversary, all seven volumes are published in a magnificent new design. Of course, Harry knows that wizarding is strictly forbidden during the holidays, and yet he still transports his terrible aunt to the ceiling with a levitation spell. The consequence is usually: Expulsion. But Harry is treated like a raw egg. Does it have anything to do with the fact that a feared criminal has it in for Harry? With Ron and Hermione, Harry tries to unravel a web of betrayal and revenge, and encounters things that almost make him doubt his sanity. This is the third volume in the internationally successful Harry Potter series that has influenced generations. All volumes of the series: Harry Potter and the Philosopher's Stone Harry Potter and the Chamber of Secrets Harry Potter and the Prisoner of Azkaban Harry Potter and the Feu.