Illegal loggers are mysteriously dying horrific deaths in the Amazon rainforest. The color of the fluids expelled from the men morphs from red to cream as their internal organs disintegrate and mix with their blood.At a nearby compound a group of American educators and students including medicinal research scientists Dr. Stephen Elmore and Dr. Julia Cole help local law enforcement investigate the gruesome deaths. When three more men die nearby at the same time the scientists quickly discover whatever is happening is spreading.The question of "who is the killer?" may be replaced by a "what." Could it be the local eco-terrorist group? Or could it be something from the deep, unexplored interior jungle—something that has yet to be identified by anyone?Within days, four more men die violently. Can the grisly mystery be solved before the members of the compound also succumb to the killer?