In this second thriller in the Joe Higheagle Environmental Sleuth Series, mysterious deaths are taking place in the Rocky Mountain region outside Denver, Colorado. Joe Higheagle--a full-blooded Cheyenne geologist who has recently become an overnight celebrity for bringing down a billionaire corporate polluter--is hired to investigate Dakota Ranch, where four boys have recently died from a rare form of brain cancer, and Silverado Knolls, a glitzy soon-to-be-built development. He quickly finds himself entangled in an environmental cancer cluster investigation as well as a murderous conspiracy in which friend and foe are indistinguishable and a series of seemingly impenetrable roadblocks are thrown in his path.