Now available in mass market paperback from Orbit publishing!

The Extinction Cycle is #1 bestselling and #1 top-rated science fiction adventure that readers around the world are hailing as one of the best thrillers of 2016! A semi-finalist in the 2015 Goodreads choice awards for best horror novel. Extinction Horizon uses compelling science to create a terrifyingly real reading experience.

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Praise for Extinction Horizon

“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 Series

“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…


D. J. MollesAuthor of The Remaining

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, code-named 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.