Everything you need to understand or teach The Golden Tresses of the Dead by Alan Bradley.
Alan Bradley's mystery, The Golden Tresses of the Dead, is the story of Flavia de Luce, a young girl who works with her partner Arthur W. Dogger to solve the mystery of who put a finger in her sister's wedding cake and why they did it. Their investigation leads to the discovery of the ringleader of a confidence scheme and the people who work for him. At the same time, Flavia moves forward in her own hero's journey as she becomes a better version of herself and a better detective. Themes relating to family relationships, deception, pride, collaboration, and the dual nature of things are prevalent in the narrative.