The worst of nature and the worst of science will bring the human race to the brink of extinction…
Master Sergeant Reed Beckham has led his Delta Force Team, codenamed Ghost, through every kind of hell imaginable and never lost a man. When a top secret Medical Corps research facility goes dark, Team Ghost is called in to face their deadliest enemy yet–a variant strain of Ebola that turns men into monsters. After barely escaping with his life, Beckham returns to Fort Bragg in the midst of a new type of war. As cities fall, Team Ghost is ordered to keep CDC virologist Dr. Kate Lovato alive long enough to find a cure. What she uncovers will change everything.
Total extinction is just on the horizon, but will the cure be worse than the virus?
About the series: The propulsive Extinction Cycle went viral on Amazon in 2014, hitting the #1 spot on multiple bestseller lists on Amazon and Audible. Amazon selected the series as a Kindle World, opening up the universe to other authors (click the Extinction Cycle Side Stories tab above for more info). The series later sold to Orbit Publishing, and arrived in all major book stores in mass market paperback in 2017. In 2018, Festa Verlag published the series in Germany where it also became a bestseller. Since 2014, the series has been nominated for multiple Goodread’s Choice Awards and has sold over half a million copies worldwide. 
The Extinction Cycle Season 1 reading order:

Extinction Cycle Season 1

Book 0: Extinction Red Line
Book 1: Extinction Horizon
Book 2: Extinction Edge
Book 3: Extinction Age
Book 4: Extinction Evolution
Book 5: Extinction End
Book 6: Extinction Aftermath
Book 6.5 Extinction Lost (short story)
Book 7 Extinction War

Side stories can be read at any point during Season 1.

Season 2: Extinction Cycle: Dark Age (eight years after the events of season 1 end)

Book 1: Extinction Shadow
Book 2: Extinction Inferno
Book 3: Extinction Ashes

Book 0

Extinction Red Line

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Book 1

Extinction Horizon

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Book 2

Extinction Edge

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Book 3

Extinction Age

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Book 4

Extinction Evolution

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Book 5

Extinction End

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Book 6

Extinction Aftermath

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Book 6.5

Extinction Lost

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Book 7

Extinction War

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Praise for the Extinction Cycle

“True throat punch function with the perfect blend of authentic military action and science to create a realistic apocalyptic thriller. Nicholas Sansbury Smith has raised the bar for the genre, and I’m a fan.”

G. Michael Hopfbestselling author of The New World Serieshttps://

“EH is a coaster ride of fear and adrenaline that you will not want to put down. Nicholas Sansbury Smith once again separates himself from the masses with a brilliantly entertaining post-apocalyptic thriller.”

W.J. Lundybestselling author of Walking in the Shadow of Death

“Fast-paced military action meets cool, cutting edge science. Extinction is no longer a Darwinian battle of the fittest. It’s a race for survival.”

E.E. Giorgiaward-winning author of Chimeras

“World War Z meets the Hot Zone in this compelling thriller that’s taken the zombie genre in an exciting new direction.”

William Massabestselling author of Silicon Man

“This book combines some of my favorite elements of virology, genetic manipulation, horror, action, suspense and zombie like mayhem.”

The Lazy Book ReviewerReviews and ramblings from a self-confessed book addict

“The story within Extinction Horizon is terrifying and real… The grim reality inside the book is one that could very well play out in real life, and that is a major part of what makes the plot so intense.”

Shattered RavingsExcursions into Sci-Fi, Fantasy, Horror…and everything in between…

“UNRELENTING, UNMERCIFUL ACTION!”

D. J. MollesAuthor of The Remaining