Showing The Way of the Traitor by Laura Joh Rowland
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Nagasaki, 1690. When the mutilated body of a Dutch trader washes up on Nagasaki shore, Sano Ichiro - the Samuri detective - finds himself leading a murder investigation that could thrust Japan into war. Framed for treason, Sano must find the killer to prove his own innocence ...before his head dishonourably decorates the town square.