On the eve of her twelth birthday, Beatrice Bailey is surprised to find that the decision about her classification as a witch has not been made and that she must first perform a task involving the evil Dally Rumpe.

Beatrice Bailey is tall, skinny, and about to turn twelve years old. On that birthday 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. Thus begins Beatrice's series of adventures.

Breaking the spell takes Beatrice and her three best friends to several dangerous realms within the witches' sphere. In this tale, their main challenge is to get past an enchanted hedge of thorns and a fire-breathing dragon to undo the spell that has cast the land in snow and ice.