The Extinction Trials Riddle, Aj

The end... is only the beginning.

After a mysterious global event known only as 'The Change,' six strangers wake up in an underground research facility where they're told only that they are part of a scientific experiment to restart the human race - the Extinction Trials.

Dr Maya Young is successful, single, and completely unfulfilled. But she's working on it. Until, after a particularly strenuous spin class, she ends up in the hospital with doctors struggling to make sense of her symptoms.

Owen Watts is a firefighter slowly being replaced by robots. And with his limitation - a condition that has always held him back in life - he has no idea what he'll do when the robots take his job completely. But when what seems to be a false alarm turns out to be the start of a massive global event, Owen's injuries land him in the hospital.

Maya and Owen hope the Extinction Trials might be the answer to their recovery, and to the survival of the human race.

But the Extinction Trials harbours a very big secret.

And so does the world outside.

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.