Shadow Sentinel
$2.99 $4.99

Shadow Sentinel by Rex Flint

05/31/2026
Free with Kindle Unlimited! Shadow Sentinel: A Genetic Engineering Technothriller Written by Rex Flint, the former Pentagon cyber operator who turns classified nightmares into edge-of-your-seat thrillers. Monsters aren’t born. They’re engineered. When a flash flood seals off Tall Pines, Georgia, ex–Air Force investigator Archer Lucas is dropped into a nightmare. Locals whisper about the Wampus Cat. The truth is uglier: A secret research lab has turned the Appalachian woods into a live test range for gene-spliced predators. Cut off by rising water and dirty politics, Archer’s only reliable ally is A.L.I.C.E., an off-grid AI with her own secrets. By dawn, the bodies will stack up unless Archer can expose the operation, outmaneuver a federal smokescreen, and survive the hunt. Shadow Sentinel blends Michael Crichton’s scientific dread with Stephen King’s knife-edge tension: biotech gone feral, a town under siege, and an investigator who refuses to look away. You’ll love this if you’re into: Technothrillers like Jurassic Park, The Terminal List, Relentless Survival horror like The Troop and The Ruins Deep-state intrigue, black-site biotech, and unstoppable monsters Lock your doors. Keep the lights on. The hunt begins now.