SparkNotes: Harry Potter and the Prisoner of Azkaban: SummaryThese notes were contributed by members of the GradeSaver community. Harry is back with the Dursleys, where he sees that a prisoner named Sirius Black has escaped. This leads to him running away and getting picked up by the Knight Bus. He tells Harry that he has to stay in Diagon Alley for the remaining three weeks before school starts again. The night before the Hogwarts Express departs, Harry learns that Sirius Black is a convicted murderer, who is believed that he wants to murder Harry.
Harry Potter and the Prisoner of Azkaban In One Minute - Harry Potter Explained
Harry Potter and the Prisoner of Azkaban by JK Rowling - review
Robert Downey Jr. Sign in. It's Harry's third year at Hogwarts; not only does he have a new "Defense Against the Dark Arts" teacher, but there is also trouble brewing. Harry Potter is having a tough time with his relatives yet again. He runs away after using magic to inflate Uncle Vernon's sister Marge who was being offensive towards Harry's parents. Initially scared for using magic outside the school, he is pleasantly surprised that he won't be penalized after all. However, he soon learns that a dangerous criminal and Voldemort's trusted aide Sirius Black has escaped from the Azkaban prison and wants to kill Harry to avenge the Dark Lord.