When Wilma is denied the opportunity to become a Wicked Queen even though she has earned her Grade Three Magic certificate, she decides to get her revenge by devising a cunning plan that involves a girl named Snow Drop.

Wilma, the Wicked Queen in training, is off to her mysterious great-aunt's castle to help in a highly secret Magical project, involving a soppy princess and a spinning wheel, a talking wolf, a broken curse—and an awful lot of washing-up. Her aunt has been plotting for a hundred years and Wilma has just three days to help.