Mildred Hubble is sure that the new term at Miss Cackle's Academy for Witches is going to go brilliantly. She has prepared the best Holiday Project ever – she's certain that her form teacher, the formidable Miss Hardbroom, will be impressed. Even Mildred's arch enemy, Ethel Hallow, seems to have turned over a new leaf. But, as always, Mildred's plans soon come tumbling down around her. Will Mildred triumph after all?