Harry Potter and the Prisoner of Azkaban

Harry, Ron and Hermione return as teenagers for a third term at Hogwarts School of Witchcraft and Wizardry. But Harry s fate, and that of the entire community of wizards, looks bleak when the infamous Sirius Blackconvicted of abetting evil Lord Voldemort by killing 13 people with a single curseescapes from prison. The only clue to where Sirius is headed: The Azkaban guards heard Black muttering in his sleep He s at Hogwarts. .. He s at Now, even within the walls of his magical school, Harry may not be safe from a convicted killer in Harry Potter and the Prisoner of Azkaban.