Roman ambition created a lethal horror almost 2000 years ago. Since then it has been waiting - starving, hating and utterly insane...
Julie Harrison is a smart, dedicated British university student. Together with her over-protective brother Michael and his jealous girlfriend, she joins a caving trip into Maar's Maw in the Pennines. However, adventure turns to terror when the team become trapped deep underground - in the lair of an ancient behemoth. Amid the chaos and panic, Julie finds the courage to lead the survivors. She knows they must work together, to try to evade the beast that now stalks them and to discover a way of escape. Their journey reveals evidence of ancient conflicts and slaughter, and clues to how their hunter was created. As days pass, they become exhausted, sick and hungry. They suffer the harrowing loss of friends to the monstrosity's ravenous attacks. Hope ebbs away... How far will friendship take the survivors? What extremes will their darker sides take them to?