The Sixty-Four

Nate Evans keeps the artificial suns burning in a sealed underground world where no one questions the sky they've never seen. Every year, volunteers climb to the irradiated surface to take readings—and none of them come back. But when his sister signs up for the next mission, Nate follows her through the airlock and discovers a truth that could shatter sixty-four habitats: the surface isn't poisoned. It never was. Now Nate must dismantle a conspiracy that spans two civilizations before the people who profit from the lie silence him for good.