Harry Potter and the Prisoner of Azkaban games loosely based on "Harry Potter and the Prisoner of Azkaban" were also released for several platforms, and most obtained favourable reviews. Harry is back at the Dursleys for the summer holidays, where he sees on Muggle television that a convict named Sirius Black has escaped, though with no mention of what facility he has broken out of. Harry involuntarily inflates Aunt Marge when she comes to visit after she insults Harry and his parents. This leads to his running away and being picked up by the Knight Bus. He travels to the Leaky Cauldron where he meets Cornelius Fudge,
Legal disputes over the Harry Potter series dispute arose between "Harry Potter"'s British publisher, Bloomsbury, and Asda, a British supermarket chain owned by the US corporation Wal-Mart. On 15 July, a week before the release of the final "Harry Potter" novel, "Harry Potter and the Deathly Hallows", Asda issued a press release accusing Bloomsbury of unfairly fixing their prices. Asda spokesman Peter Pritchard claimed that Bloomsbury was "holding children to ransom" and that, "[i]t seems like Bloomsbury need to do a quid-ditch as they have sent their prices up north on the Hogwarts Express. By setting the recommended retail price at this level can only be seen