The Amazon Rainforest. A paleontological expedition, every scientist murdered or missing. A vast cavern peopled with comatose bodies from all over the world. A human skull, fossilized, with ancient writing carved on its interior. A young scientist, missing, and at the heart of it all. Recovery specialists Marc and Dana Huntington make their living recovering missing persons, stolen items, and rare treasures. Now they are thrust into chaos and intrigue as they search for a missing paleontologist, the son of Marc's former Delta Force commander. Arriving at the expedition site deep within the Amazon Rainforest they find the jungle ablaze and dozens of bodies littering the area. Soon they learn that a fossilized skull is at the heart of the deadly mystery. Multiple factions seek the skull. Local superstition surrounds the relic, Deadly attacks, explosions, cave ins, a chamber filled with peculiar, unnaturally preserved bodies: every discovery leads to another mystery and the Huntingtons must locate the missing scientist and uncover the secret of the Amazon skull or dozens more will die.