It isn’t made clear until the end whether it is the Good or Evil brother who survived to be the School Master. What hints does the author place throughout the book about the School Master’s identity?

The School for Good separates girls and boys for many classes, while the School for Evil combines boys and girls for all classes. Why is the School of Good more gendered than the School of Evil? What does this say about fairy-tale gender roles?

Throughout the novel, Sophie and Agatha are told that a princess and a witch can’t be friends. How do Sophie and Agatha thwart fairy-tale tropes and end the novel as friends?