Death and the Delinquent

Shirley McClintock is vacationing in New Mexico with her friend J.Q., her daughter Allison, and Allison's schoolmate April. While exploring a mesa on muleback, a sharpshooter wings Shirley's mule, sending her into the hospital with a crushed knee, and kills April. Down but far from out, Shirley wrestles with a mystery that's as deadly as a rattlesnake . . .