From A.G. Riddle, the worldwide bestselling author of The Atlantis Gene, Departure, and Winter World, comes an epic standalone novel with a twist you’ll never forget.
After a mysterious global event known only as “The Change,” six strangers wake up in an underground research facility. They soon learn that they’re part of the Extinction Trials—a scientific experiment to restart the human race.
But the Extinction Trials hides a very big secret.
And so does the world outside.
