Three Murder Cases Solved (Dee Goong An) by Robert Van Gulik

This book, written in the eighteenth century by a person well versed in the Chinese legal code, chronicles three of Judge Dee's most celebrated cases, interwoven to form a novel. A double murder among traveling merchants, the fatal poisoning of a bride on her wedding night, an unsolved murder in a small town under Judge Dee's jurisdiction—these are the crimes. They take Judge Dee up and down the great silk routes, through clever disguises, into ancient graveyards where he consults the spirits of the dead, and through some clever deduction.