Enormous silk banners hung from the walls, each of them representing a Hogwarts House: red with a gold lion for Gryffindor, blue with a bronze eagle for Ravenclaw, yellow with a black badger for Hufflepuff, and green with a silver serpent for Slytherin. Behind the teachers’ table, the largest banner of all bore the Hogwarts coat of arms: lion, eagle, badger, and snake united around a large letter H.