The Mystery of the Hushing Pool

First published in the US in 1938 by Hillman-Curl Inc.: New York, now public domain.
Was Richard Malvery really dead, or had he for some sinister purpose merely disappeared under mysteriously suspicious circumstances which pointed an accusing finger at his brother, Boyce? Just what did the Clents—that wild, exotic family—know?

Against a bleak, desolate background, the master mystery writer of them all weaves an unforgettable tale of passion, horror, and murder.