Brilliant detective Ana Dolabra must prove a man's innocence to stop a civil war in the third book of the series that began with The Tainted Cup, named an Edgar, Hugo, and World Fantasy Award Finalist and one of the best books of the year (New York Times Book Review, NPR, Elle)—from the bestselling author of The Founders Trilogy. In the canton of Sapirdad, two of the Empire’s most powerful families are moments away from going to war with each other, their hundreds of retainers gathered with swords drawn. If blood is spilt, the whole of the empire may be…