Amazon.com description: Product Description: Four men. Four Days. For the fight of their lives. It was just a walk in the desert to a place 100, 000 years in the past. They thought they knew what to expect but they were wrong. Now a team of scientists is trapped in a world they were not prepared for and can never return from. Their only hope lies in quartet of former US Army Rangers willing to travel to prehistoric Nevada and face unknown horrors and impossible odds bring them home from Bad Times. New York Times bestselling author Chuck Dixon presents the first in a new original science fiction series featuring the kind of action, breakneck pacing and suspense that millions of readers around the world have come to expect. Following up on his Kindle sensation series of SEAL Team 6 books, Chuck creates a new cast of characters and a new universe of adventure starting here with Cannibal Gold.