Vanishing Act — John Scherber

In VANISHING ACT the Zacher Agency is pulled out of Mexico to investigate the disappearance of Cody's nephew, Peter Welsh, a year after the mysterious death of his wife. When they arrive, they find his house burned to the ground. They follow his trail to New Mexico, not knowing whether Welsh is the criminal or the victim. When his body is discovered still in the ruins of his house, the problem becomes finding out who they're pursuing. Or are Paul, Cody and Maya the next victims of something too monstrous to contemplate?

Vanishing Act is the sixth of the Paul Zacher, Murder in Mexico mystery series.