Aunt Cauldroneyes is always looking into cauldrons. She’s found everything from giggling moons to troll nose rings, but when she looks inside a purple cauldron one stormy night, she finds a girl with blue freckles. The old witch raises the girl and names her Spella. They live in Hungry Snout Forest in a crooked house with doors enchanted to smell like chocolate. In the attic full of floating fabric and biting buttons, Aunt Cauldroneyes teaches Spella how to make magical hats for creatures like unicorns and dragons, giants and goblins. When Spella turns eight, she receives an invitation to Dragon’s Knob, a school for wand witchery and wizardry. But on the very night Spella is set to leave, a stranger appears with a growling hat that swallows Aunt Cauldroneyes and steals her away! To rescue her aunt, Spella must go up into a sky full of dragons and to her new school. With protesters outside the gates threatening the school’s academic freedom and a deepening mystery within the walls, Spella and her new friend Tolden are thrust into the mystery of her aunt’s disappearance and a long-buried secret hidden somewhere in the school.