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
Religious debates over the Harry Potter series by Lord Voldemort" was morally wrong. A French Traditionalist Catholic circle has published a thorough critical study of the Harry Potter series along the lines of demonology, with the title - in English translation - "Harry Potter and the Order of Darkness". In 2002, the Greek Orthodox Church authorities in Thrace released a statement denouncing the "Harry Potter" books as Satanic, saying that they "acquaint people with evil, wizardry, the occult and demonology." The statement also criticised the purported similarities between Harry Potter and Jesus Christ, saying, "It is beyond doubt that Harry was made to resemble a young savior.