The Tales of Beedle the Bard by Albus Dumbledore, former headmaster of Hogwarts School of Witchcraft and Wizardry. It is described as a popular collection of Wizarding children's fairy tales, so that while Ron Weasley is familiar with the stories, Harry Potter and Hermione Granger had not previously heard of them due to their non-magical upbringing. The book Hermione receives in Dumbledore's will is a copy of the original edition of the fictional book. It is described as an ancient-looking small book with its binding "stained and peeling in places". In the novel it is also said the book has a title on its cover, written
The Demon Headmaster Headmaster by using mirrored sunglasses to trick him into hypnotising himself. The second story, called Carnival!, doesn't explicitly identify one of its characters as the Demon Headmaster, but from the illustrations and description are meant to make it obvious that it is him. The third story is called 'Maths Homework', and features a teacher referred to as Old Webster. This isn't the Demon Headmaster but is a very similar character. The introduction to the story says, 'Maybe you think you have spotted the Demon Headmaster somewhere. Are you sure? Things aren't always what they seem.' In the front of the