Now in paperback with stained edges and foil and embossing on the cover!In this hilarious sixth middle grade book in the Middle School and Other Disasters series that started with New York Times bestseller Worst Broommate Ever!, witch-in-training Heidi Heckelbeck has a new rival. When a new student comes to Broomsfield Academy, Mrs. Kettledrum informs the students she is an extra-talented witch-in-training. At first Heidi is intrigued and wants to be friends, but when Jodi tells Heidi she intends to be the best witch ever, a competition brews between them and bubbles over while on a field trip to a museumwhich becomes more dangerous than either could have imagined!