Matilda: The Chocolate Cake Edition

Who put superglue in Dad's hat? Was it really a ghost that made Mom tear out of the house? Matilda is a genius with idiot parents - and she's having a great time driving them crazy. But at school things are different. At school there's Miss Trunchbull, two hundred menacing pounds of kid-hating headmistress. Get rid of the Trunchbull and Matilda would be a hero. But that would take a superhuman genius, wouldn't it?

Source: 1, back cover