A Wreath of Bones — John Newton Chance

The first time Jonathan Blake met Jennifer Bold Walker, murder was suspected. People had disappeared, and the circumstances were black against Jennifer, but there was no proof and she outplayed the young Blake. Ten years later, more people had gone missing without trace, even Jennifer's husband and son. Was she really a full-scale murderess? Was it possible for any woman to have such black hatred, such iron courage to outface a suspicious world, and the cunning to outplay every trick set to catch her?