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Shadow Sentinel

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Shadow A Techno-Horror Thriller by Rex Flint

Monsters aren't born. They're made.

Disgraced Air Force investigator Archer Lucas thought his career was over ... until he got an offer he couldn't join the Shadow Sentinels, an elite, secret team tasked with threats too terrifying and too bizarre for ordinary forces.

His first mission plunges him deep into the eerie Appalachian woods, into Tall Pines, Georgia, a town haunted by dark legends and sudden, unexplained disappearances. Locals whisper of the legendary Wampus Cat, but the truth is infinitely a powerful biotech firm has unleashed genetically engineered predators, and they're hunting the townspeople for sport.

As a catastrophic flood isolates the town, Archer and his team face off against horrifying creatures born from science gone wrong, corrupt government conspiracies, and a chilling corporate cover-up reaching the highest levels of power. The only ally Archer can truly trust is A.L.I.C.E., a mysterious AI with secrets of her own.

In a battle between nightmare and reality, truth and lies, Archer must rely on his instincts and confront his darkest fears if he hopes to survive the night.

Shadow Sentinel is Michael Crichton's scientific dread fused with Stephen King's bone-chilling suspense, delivering heart-pounding action and relentless terror that keeps you breathless until the final page.

If you

Thrillers like Jurassic Park, The Terminal List, and Relentless

Edge-of-your-seat horror like The Troop and The Ruins

Deep-state conspiracies, military secrets, and unstoppable monsters

…then you'll devour Shadow Sentinel in one unforgettable sitting.

Lock your doors. Keep the lights on. The hunt begins now.

297 pages, Paperback

Published August 4, 2025

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Rex Flint

1 book

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Displaying 1 - 2 of 2 reviews
Profile Image for Juli.
25 reviews
August 16, 2025
I really appreciated the real-world knowledge Rex Flint wove into this story. Blending that authenticity with elements of folklore and cutting-edge technology makes for a gripping, well-rounded thriller.

The main character, a former soldier discharged for standing up for what’s right, is pulled back into action with a covert agency that feels like a modern-day A-Team. Each teammate brings unique skills to the table, and together they form a unit you can’t help but root for.

The story is packed with twists, relentless action, and just enough unsettling moments to keep you turning pages late into the night. Shadow Sentinel is a smart, high-stakes ride that doesn’t let up.
Profile Image for Sheila Myers.
Author 16 books21 followers
September 10, 2025
A good mix of sci-fi and thriller. The plot is fast-paced and is interesting because of the mix of local folklore and genetic engineering. The characters are well-developed.
Displaying 1 - 2 of 2 reviews