A special new edition in celebration of the 20th anniversary of the publication of Harry Potter and the Sorcerers Stone, with a stunning new cover illustration by Caldecott Medalist Brian Selznick. For twelve long years, the dread fortress of Azkaban held an infamous prisoner named Sirius Black. Convicted of killing thirteen people with a single curse, he was said to be the heir apparent to the Dark Lord, Voldemort.