Lethal Horizon
FROM FORMER GREEN BERET AND USA TODAY BESTSELLING AUTHOR JASON KASPER
For David Rivers and his team, the mission was supposed to be simple—retrieve a defecting militia leader and deliver him to CIA interrogators.
But nothing is simple in Yemen, where vast swaths of terrain are controlled by Houthi and Al Qaeda fighters. When they locate the asset, the team discovers why he has been deemed critical to their intelligence effort.
The defector has direct knowledge of the team’s top target: Erik Weisz, the shadowy figurehead behind the most catastrophic terrorist attacks since 9/11. And as it turns out, Weisz is currently in Yemen, traveling through Houthi territory with heavy security.
As David’s crew prepares for a follow-on operation to remove Weisz once and for all, they discover a web of contradictions. A sudden order to stand down leaves the unit questioning the motives of their CIA handler. With suspicious leadership and a deadly conspiracy looming, the team boards a military aircraft to infiltrate the most dangerous corners of a war-torn desert.
David is convinced it will be their bloodiest mission yet—and within hours of being inserted deep into the badlands of Yemen, he and his team realize they are pawns in an exceedingly deadly game of chess.
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Jason Kasper
Jason Kasper doesn’t write thrillers that let you breathe easy. He writes the kind that drag you into the shadows and keep you there, pulse ticking, until the final chapter. His work is a high-wire act of tension and authenticity—because he’s not just imagining danger. He’s lived it.
Before turning to fiction, Kasper served as a U.S. Army Special Forces officer, with combat deployments in Afghanistan and a firsthand understanding of the stakes behind the missions. That real-world experience bleeds through every page of his bestselling Shadow Strike and Spider Heist series. You can feel it in the precision of the action scenes, in the way his characters calculate risk and navigate chaos. These aren’t just thrillers—they’re field-tested adrenaline shots.
Shadow Strike
In the murky world of covert warfare, there are operations so classified they don’t officially exist—and men trained to vanish before their shadows hit the ground. That’s the brutal, high-stakes terrain the Shadow Strike series plunges into, delivering a relentless blend of psychological intensity, tactical precision, and moral complexity.
Shadow Strike consists of ten books. The current recommended reading order for the series is provided below.

