"When an intricate old map is found stuffed into the walls of the bistro in Three Pines, it at first seems no more than a curiosity. But the closer the villagers look, the stranger it becomes. Given to Armand Gamache as a gift the first day of his new job, the map eventually leads him to shattering secrets. The focus of the investigation soon turns to Gamache himself and his mysterious relationship with Amelia, and his possible involvement in the crime. The frantic search for answers takes the investigators back to Three Pines and a stained glass window with its own horrific secrets. For both Amelia Choquet and Armand Gamache, the time has come for a great reckoning."-- Provided by publisher.