This is the fourth and last book in the Hangman’s Daughter
series, set in Bavaria in the Seventeenth Century. They all feature the Hangman
of Schongau, Jakob Kuisl, his daughter Magdalena, and her husband, medicus Simon Fronweiser.
Magdalena’s children are kidnapped and used as leverage in an unholy scheme, but in the end Jakob Kuisl, aided by Magdalena and Simon, solves the mystery and rescues brother Johannes and the children, although not before he is tortured, and the cathedral is burned to the ground.
I enjoyed this series, but it has some grisly, unsavory scenes, being true to an era when every town in Bavaria had its own hangman, whose job it was to determine those responsible for crimes by torturing them until they confessed.