Theodore Scott's life had been one long slide since leaving graduate school. Banned from future research, divorced from his wife, and stuck in a dead-end job at the Central Intelligence Agency, he must now deal with the death of his friend and mentor, Antonio Bojas, a brilliant Brazilian physicist killed in a tragic lab accident deep in the Amazon rainforest. But after the demise of another scientist in the same field, Theo begins piecing together suspicious clues that Antonio's death was no accident. Tracking the killer leads Theo on a chase spanning continents, propelling him toward a confrontation with the world's most dangerous secret...