Extinction Shadow
The award winning, top-rated saga that sold a half-million copies returns in the next season of the Extinction Cycle. Welcome to the Dark Age.
Survivors thought the extinction cycle ended, but a powerful evil lurks in the shadows...
Eight years ago, an engineered virus ravaged the globe, infecting and transforming humans into apex predators called Variants. Billions died, civilization collapsed, and the human race teetered on the brink of extinction.
Nations banded together and heroes rose up to fight these abominations. On the front lines, Captain Reed Beckham and Master Sergeant Joe "Fitz" Fitzpatrick of Delta Force Team Ghost fought against the Variant hordes. With the aid of CDC Doctor Kate Lovato, they helped lead humanity to victory.
Now, almost a decade after the end of the war, civilization has slowly clawed toward recovery. In the Allied States of America, survivors live in outposts where they have rebuilt industry, agriculture, and infrastructure. The remaining Variants are believed to be dying off under destroyed cities and the abandoned frontier.
But evil and intelligent forces dwell in the shadows with the starving beasts, scheming to restart the extinction cycle and end humanity forever. And once again, Beckham, Fitz, and Kate will rise to fight them, joining forces with new heroes to try and save what's left of the world.
READER NOTE: You don't have to read the first 7 books of the Extinction Cycle to jump into Book 1 of Extinction Cycle: Dark Age. This new season is a self-contained storyline. For returning readers, this book takes place after book 7, Extinction War.
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Nicholas Sansbury Smith
Nicholas Sansbury Smith is the New York Times and USA Today bestselling author of the Hell Divers series. His other work includes the Extinction Cycle series, the Trackers series, and the Orbs series. He worked for Iowa Homeland Security and Emergency Management in disaster planning and mitigation before switching careers to focus on his one true passion - writing. When he isn’t writing or daydreaming about the apocalypse, he enjoys running, biking, spending time with his family, and traveling the world. He is an Ironman triathlete and lives in Iowa with his wife, their dogs, and a house full of books.
Extinction Cycle: Dark Age
Extinction Cycle: Dark Age consists of four books. The current recommended reading order for the series is provided below.
Main series The Extinction Cycle

