River of Darkness A John Madden Mystery Set in World War II England

As rural England emerges from World War I, a vicious attack on a household leaves five butchered bodies and no explanation for the killings. Scotland Yard sends Inspector John Madden, still recovering from his own harrowing war experience and from the deaths of his family. The locals dismiss the slaughter as a robbery, but Madden detects the signs of a madman at work.