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 [It's not] the kind of real-life witchcraft the Bible condemns." Austin Cline notes that, "The Harry Potter books simply aren't about Wicca as it is currently practiced. J.K. Rowling researched Wiccan practices and incorporated a few elements in order to give her books a bit more of an air of reality, but she and Wicca are drawing upon the same corpus of ancient traditions and stories so similarities are inevitable. They certainly aren't a sign that the books work to "indoctrinate" people into Wicca as a religion." In his book, John Granger makes a critical distinction between what he calls