Instruct: Classify Amazon reviews into positive or negative sentiment
Query: An atmospheric mystery set in India during the British Raj

In this pleasantly restrained murder mystery, a Scotland Yard detective comes to a British Army post in India to look into a series of deaths among officers' wives. The story conveys the inbred atmosphere of the time (the 1920's) and the place. Adventures and romances illuminate personal histories and reveal tensions under the surface of polite discourse. The story ends with an unexpected and very effective twist. The book is mercifully free of gruesome descriptions.