Being a witch isn't easyEvilyn Badmanners and Goodrun Smith are two half-sisters who couldn't be more different: what's more, they are both witches! But Goodrun discovers that being good at magic isn't as easy as you'd think.Though Evilyn and Goodrun are both the daughters of Witch Hayzell, they are not at all alike. When the two sisters are sent to the Academy of Black Art for their education, the witches in charge are impressed with Evilyn. Goodrun, however, fails in everything she does. During the final examinations, Goodrun fumbles in her spells and unwittingly creates havoc at the Academy...