Badwater

DEATH VALLEY EARNS ITS NAME when a terrorist threatens to unleash lethal radioactive toxins in America's most fragile national park.Forensic geologists Cassie Oldfield and Walter Shaws embark upon a perilous mission to find and stop the terrorist. Mineral clues lead them deep into the desert, and the canyons, pushing them to their limits. The summer heat is brutal. The material they seek is hotter than the desert in August, and they are each vulnerable to its effects.The geologists soon learn that they are up against more than human malice. The unstable atom--in the hands of an unstable man--is governed by Murphy's Law. Whatever can go wrong, will go wrong.And it does.. _____All books in the series are complete novels, and can be enjoyed in any order. Toni Dwiggins is an award-winning and bestselling author. She takes forensic mystery into thriller territory, bringing her characters from the lab to outdoor adventure. She has hiked the same trails, skied the same mountains, run the same river, and kayaked the same sea as her characters -- but she doesn't get into nearly the trouble that they do.