From A.G. Riddle the Amazon and Wall Street Journal bestselling author with nearly five
million copies sold worldwide in twenty languages comes an epic standalone adventure with a
surprise ending unlike anything you've ever read before. After a mysterious global event known
only as 'The Change' six strangers wake up in an underground research facility where they
learn that they're part of the Extinction Trials - a scientific experiment to restart the human
race. But the Extinction Trials harbours a very big secret.
