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
Potions in Harry Potter Potions in Harry Potter This is a list of potions used in the "Harry Potter" series. Many are mentioned in potions class at Hogwarts, which is taught by Severus Snape in books one to five and Horace Slughorn in books six and seven. Amortentia is a love potion that does not create actual love, but gives the drinker a powerful obsession and infatuation with the giver of the potion. It is usually either forced upon someone or covertly given. As a rule of thumb the longer a love potion awaits consumption, the stronger the effects will be, as seen in