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 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.

From A.G. Riddle, the Amazon Charts and Wall Street Journal bestselling author with over FOUR MILLION COPIES SOLD worldwide in twenty languages, comes an epic STANDALONE novel with a mind-blowing twist at the end.

Note: This is A.G. Riddle's tenth novel and his first new release in two years. Audio rights were acquired by RecordedBooks for $400k. The book will be released concurrently in hardcover, paperback, and eBook on 2 Nov 2021. If you're a bookseller or librarian, please email info@legionbooks.com about how to order.

Thank you for your interest in The Extinction Trials.

Past 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