Résumé
Harry, Ron and Hermione, now teenagers, return for their third year at Hogwarts, where they are forced to face escaped prisoner, Sirius Black, who poses a great threat to Harry. Harry and his friends spend their third year learning how to handle a half-horse half-eagle Hippogriff, repel shape-shifting Boggarts and master the art of Divination. They also visit the wizarding village of Hogsmeade and the Shrieking Shack.