Prisoner of Azkaban chapters 9-10. Happy birthday, Harry Potter! And a happy birthday to you too, JK Rowling--we hope you got a third treehouse or whatever. After we finish wishing our heroes a happy birthday, we travel to a very rainy Hogwarts to discuss the Marauder's Map, pub waitresses, reddit, and who would win in a fight between Sirius Black and John Wick.