Unable to comprehend this inexplicable event, the government sends Nathan Rand into this impenetrable secret world of undreamed – of perils to follow the trail of his vanished father…toward mysteries that must be solved at any cost. But the nightmare that is awaiting Nate and his team of scientists and seasoned U.S. Army Rangers dwarfs any danger they anticipated…an ancient, unspoken terror – a power beyond human imagining-that can forever alter the world beyond the dark, lethal confines of the Amazon rainforest for better… and for worse.