Heidi is both excited and nervous to start at her new boarding school, Broomsfield Academy! She can't wait to start magical classes but her first day takes a turn for the worse when Heidi discovers her roommate (or "broommate" as they are known here) is none other than her old rival, Melanie Maplethorpe. Melanie is less than thrilled too, and the two find themselves engaged in an epic prank war. But when magic enters the mix, will the reluctant roommates go too far?