In a world where fire is the only thing keeping the darkness at bay, nine-year-old Ethan discovers a secret buried beneath the earth that was never meant to be found. After falling into a hidden, ancient library from a forgotten age, Ethan realizes the stone axes of his tribe are no match for the power of lost knowledge. But in a land ruled by savage predators and even more savage men, bringing the past back to life might be the most dangerous thing he's ever done.