Beatrice Bailey is tall, skinny, and about to turn twelve years old—at which time she will get her official classification as a witch. But will she be named an ordinary Everyday Witch or a specially empowered Classical Witch? When the big day arrives, the Witches' Executive Committee can't decide how to classify her. At last, they agree that her Maximum Magic Level must be tested, and to pass the test she must break a spell that has been cast by the evil sorcerer, Dally Rumpe.