Harry is back at the Dursleys' for the summer holidays, where he sees on television that a convict named Sirius Black has escaped from prison. After the Dursley's Aunt Marge insults Harry and his parents, Harry accidentally inflates her, then runs away from home, fearing expulsion from school. After encountering a large black dog that seems to be watching him, he is picked up by the Knight Bus and travels to the Leaky Cauldron, where Cornelius Fudge, the Minister for Magic, asks Harry to stay in Diagon Alley for his protection. While there, he reunites with his friends Ron Weasley and Hermione Granger.