Harry Potter und der Gefangene von Askaban

Of course, Harry knows that magic is strictly forbidden during the holidays, and yet he uses a floating charm to throw his terrible aunt up on the ceiling. The consequence is usually: expulsion from school! But Harry is treated like a raw egg. Does it have anything to do with a dreaded criminal targeting Harry? With Ron and Hermione, Harry tries to unravel a web of betrayal and revenge and comes across things that almost make him doubt his mind.