Japan, March 1700. The strife between Sano Ichiro, the samurai detective who has risen to power in the shogun's court, and his enemies has escalated to the brink of war. Called away from the crisis by the shogun's orders to investigate a mysterious skeleton, Sano and his wife, Reiko, must confront dangerous, long-buried secrets. What was Sano's own mother doing on the night when a burning kimono ignited a blaze that nearly destroyed the city? The shogun gives Sano and Reiko just three days to find out—or risk losing not only their position at court but their families' lives as well.