On the head of a pin

the long version

Thaddeus Lewis, an itinerant "saddlebag" preacher still mourns the mysterious death of his daughter Sarah as he rides to his new posting in Prince Edward County. When a girl in Demorestville dies in a similar way, he realizes that the circumstances point to murder. But in the turmoil following the 1837 Mackenzie Rebellion he can get no one to listen. Convinced there is a serial killer loose in Upper Canada, Lewis alone must track the culprit across a colony convulsed by dissension, invasion, and fear. His only clues are a Book of Proverbs and a small painted pin left with the victims. And the list of suspects is growing.