Everything has changed for Ruth Galloway: She has a new job, home, and partner, and she is no longer north Norfolk police's resident forensic archaeologist. That is, until convicted murderer Ivor March offers to make a deal—he will reveal where the bodies of some of his other victims are buried—but only if Ruth will do the digging. In this 12th outing (after The Stone Circle), Ruth must travel to a village bordering the fens, said to be haunted by the Lantern Men, mysterious figures holding lights that lure travelers to their deaths. What is March's plan, and why is Ruth so crucial to it? And are the killings really over?