A hilarious, spooky tale from the number one bestselling author Anthony Horowitz. A wickedly funny story by the number one bestelling author Anthony Horowitz, with brand new illustrations by Tony Ross. Sent to Groosham Grange as a last resort by his parents, David Eliot quickly discovers that his new school is a very weird place indeed. New pupils are made to sign their names in blood; the French teacher disappears every full moon; the assistant headmaster keeps something very chilling in his ro ...