Harry Potter and the Prisoner of Azkaban. Book 3
Kategoria: Children's books
Now he has escaped, leaving only two clues as to where he might be headed: Harry Potter's defeat of You-Know-Who was Black's downfall as well. And the Azkban guards heard Black muttering in his sleep, "He's at Hogwarts...he's at Hogwarts."
Harry Potter isn't safe, not even within the walls of his magical school, surrounded by his friends. Because on top of it all, there may well be a traitor in their midst.