The main characters posing for the cover; Adelaide Hartley, dressed in red, has her umbrella in hand, about to cast a spell with the other. The vague shape of a figure in a red scarf sits behind her. Lucy Maxwell, a star in her eye and her sword by her side, gives a two-finger salute. Behind them, Will Pollux has a pair of spectral glasses in hand, mushroom spirits floating beside him, and Riley Huynh points towards the reader, sharp teeth bared. At the back, Louis is making a run for it, leaves and vines beside him, while Esther stands turned away from the reader.