Black Lotus

Samurai detective Sano Ichiro, the hero of Laura Joh Rowland's beautifully written mysteries set in Shogun-era Japan, investigates an arson murder at the Black Lotus temple, in which the only witness--a young girl who swears she doesn't remember what happened--is also the only suspect. But Sano's wife, Reiko, believes that Haru is innocent and that the real culprits are hiding behind the barred gates of the temple, home to a mysterious sect that is rumored to be responsible for a number of criminal acts. Under pressure to solve the crime, Sano agrees to let Reiko help, but when she takes matters into her own hands, it puts his career in jeopardy and nearly destroys their marriage.