An Amazon Editor's Pick for Best Books of the Month.

After a mysterious event, six strangers wake up in an underground bunker.

They don't know how much time has passed. Or where the bunker is located.

They seem to be part of a vast scientific experiment aimed at restarting the human race after a global catastrophe—a program called The Extinction Trials.

What they don't realize is that The Extinction Trials hides a secret.

And so does the world outside.

From the bestselling author of Departure and Winter World, comes an epic standalone novel with a twist you'll never forget.

Praise for A.G. Riddle

"...reads like a superior collaboration between Dan Brown and Michael Crichton."
—The Guardian on Pandemic

"I finished the book fast because I just couldn't wait..."
—WIRED GeekDad on Departure

"Riddle... keep(s) the focus on his characters... rather than the technological marvels"
—Publisher's Weekly on Departure

"This is apocalyptic sci-fi at its best."
—Daily Mail on The Solar War

"Well-constructed and tightly-wound as a fine Swiss watch—DEPARTURE has non-stop action, an engaging plot and, of course, wheels within wheels."
—Diana Gabaldon, #1 New York Times bestselling author of Outlander

Don't miss A.G. Riddle's newest novel—Lost in Time.
On pre-order now.

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