Drought in the Colorado high country—it happens, and wildfires follow. But when a wildfire in a high mountain valley kills two dozen campers, Annette Trieri’s role as the Colorado Bureau of Investigation liaison to the sheriff of Grand County takes on a new urgency. And when it emerges that the victims are guest workers from Mexico, the social conflicts between local residents and those guests come into focus.

Was it arson—and therefore mass murder? How could a fire that hot develop at such an elevation and spread so fast? What really happened up there in el Valle del Muerte?

Annette has to bring to bear all of her resources to reveal the true secret of the Valley of Death.