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 ...