Harry Potter and the Prisoner of Azkaban attacked by a big black dog, which Harry has seen several times before. The dog drags Ron through a tunnel under the Whomping Willow into the Shrieking Shack. Harry and Hermione follow, and there is a brief standoff when they find Ron with Sirius Black, who has transformed from the dog. Lupin enters, and they explain the situation to Harry and his friends: Lupin is a werewolf, which led to his friends James Potter, Sirius Black, and Peter Pettigrew becoming animagi. Lupin explains that Scabbers is Pettigrew in his animal form; he has been hiding from Black, whom he had
Harry Potter screenwriting. A number of other non-interactive media games and board games have been released such as "Cluedo Harry Potter Edition", "Scene It? Harry Potter" and "Lego Harry Potter" models, which are influenced by the themes of both the novels and films. There are thirteen "Harry Potter" video games, eight corresponding with the films and books and five spin-offs. The film/book-based games are produced by Electronic Arts, as was "", with the game version of the first entry in the series, "Philosopher's Stone", being released in November 2001. "Harry Potter and the Philosopher's Stone" went on to become one of the