Harry Potter

Harry Potter an the Prisoner of Azkaban, is the third novel. In this book in third years at Hogwart School, and find security has been tightened because of notorious mass murderer, Sirius Black' sescape from Azkaban, the wizarding prison. Harry learns that Black betrayed Harry's parents to the evil Lord Voldemort, 12 years ago, leading to their deaths. Black is also known to have murdered the Potters' good friend Peter Pattigraw. The true is Sirius Black is etraying his parents.