Sky child

"After billions died in the End War, a small group of survivors found refuge in the Crag cave. Cut off from the outside world, they have no way of knowing if they are the only people still alive. To ensure their survival, they split into four groups: the Hunters, the Harvesters, the Keepers and the Protectors. It is a daily struggle just to feed everyone. As generations pass, the population becomes more and more murderous. Killing is so common in the Crag that there are no longer laws against it. Sam, a seventeen-year-old hunter, was left outside the Crag as an infant. Believed to have been a gift from the Sky Gods, there are whispers that Sam is the Sky Child, the one prophesized to bring peace and prosperity to the Crag. Anyone special or different in the Crag is a target for murder. Sam may be the biggest target of all."--Back cover.