Belle MacFae arrives at Hagmore School of Magic as a struggling freshman whose talent for magic is matched only by her talent for being in the wrong place at the wrong time. When a late-night practice session goes sideways, she's blamed for disrupting an ancient ritual and faces an impossible ultimatum: brew the legendary Walpurgisnacht concoction before the night ends, or face expulsion. With supernatural creatures overrunning the school corridors and her academic standing hanging by a thread, Belle must navigate the chaotic campus, gather the necessary ingredients, and somehow pull off a feat that even experienced witches would struggle to accomplish.