When Christianity is banned in the United States, those Christians who refuse to renounce their faith are arrested and imprisoned. To avoid arrest, some go into hiding. They are known as subversives, and they are ruthlessly hunted by soldiers of the government’s Task Force. Since the night of her parent’s arrest, Gemma Alcott has been hiding in an abandoned coal mine with a group of subversives. She’s found a home—and someone to love—but she’s never forgotten the love she left behind.
Sheltered in the underground Ark 1 facility, Earth’s last 300 humans fear the dark above all else… the shadows hide an ancient, primal evil–one that can take control of people, and which humans have no defense against. Deep within the miles of well lit corridors, the lights begin to flicker and fail.