Hogwarts song, each student in turn is seated upon the stool in front of the rest of the student body. The Hat is placed on the student's head, whereupon it examines his or her mind and assigns them to one of the four Houses based on abilities, personality, and preferences. After the Sorting Ceremony, the students and teachers enjoy a feast, prepared by the Hogwarts house-elves. If Dumbledore is feeling cheerful, he will lead the students in singing the school song. Hogwarts is divided into four houses, each bearing the last name of its founder: Godric Gryffindor, Salazar Slytherin, Rowena Ravenclaw
Hogwarts staff end credits, his latest book is on sale in Diagon Alley; titled "Who Am I?", it displays a picture of him humming distractedly to himself and wearing a straitjacket. Minerva McGonagall is deputy Headmistress, head of Gryffindor House, Transfiguration professor, and later Headmistress at Hogwarts. She is first introduced in the opening chapter of "Harry Potter and the Philosopher's Stone", when she meets Dumbledore at Number 4 Privet Drive, Little Whinging, Surrey (the home of Harry's aunt and uncle, Vernon and Petunia Dursley). McGonagall is described as a tall, rather severe-looking woman, with black hair typically drawn into a tight