Mariel Spark knows not to trust a demon, especially one that wants her soul, but what’s a witch to do when he won’t leave her side—and she kind of doesn’t want him to?

Mariel Spark is prophesied to be the most powerful witch seen in centuries of the famed Spark family, but to the displeasure of her mother, she prefers baking to brewing potions and gardening to casting hexes. When a spell to summon flour goes very wrong, Mariel finds herself staring down a demon—one she inadvertently summoned for a soul bargain.