Hellstalkers: The Cerberus Protocol

This audiobook is narrated by an AI Voice. They came through a tear in the fabric of reality. And the only man who survived to tell the truth was the one they court-martialed for saying so.

When a catastrophic accident at CERN rips open a dimensional gateway beneath the Swiss Alps, Captain Memphis Stone leads his multinational special operations team into the darkness below. What they find has no name in any military doctrine: eight-legged predators that shrug off automatic fire, a seven-foot nightmare of razor spines that weaponizes pure fear, and a body count that climbs until Stone is the only one left standing.

He survives. His career doesn't.

Discharged and dismissed as a trauma case, Stone watches the Army bury the truth along with his men. But someone else has been paying attention. Project Cerberus — a covert organization that exists precisely for moments the world refuses to acknowledge — knows what lives on the other side of those rifts. And they need someone who's already been there and come back.

Stone is offered a second chance: build an elite multinational hunter team, train them for a war no government will admit is happening, and go back into the dark. Not to investigate. To fight.

The rifts aren't closing on their own. The creatures pouring through them are getting bolder. And whatever is coordinating the incursions has already noticed the man who survived the first encounter.

Welcome to the front lines.

The HELLstalkers series launches here — military supernatural thriller at the intersection of special operations fiction and cosmic horror, perfect for fans of Larry Correia's Monster Hunter International, Patrick Lee's The Breach, and the hard-edged intensity of Tom Clancy meets H.P. Lovecraft.

© 2026 Harbinger Books (Audiobook): 9798996845644

Release date

Audiobook: 3 July 2026