Harry Potter and the Prisoner of Azkaban - J.K. Rowling

Harry Potter and the Prisoner of Azkaban - J.K. Rowling : The third adventure in the spellbinding Harry Potter saga – the series that changed the world of books forever When the Knight Bus crashes through the darkness and screeches to a halt in front of him, it's the start of another far from ordinary year at Hogwarts for Harry Potter. Sirius Black, escaped mass-murderer and follower of Lord Voldemort, is on the run – and they say he is coming after Harry.