Deep beneath the crust, the laws of nature break down. The air turns freezing. Gelatinous monsters with mandible mouths hunt in the dark. And the team is plagued by paranoia. With a mysterious Guide who vanishes into the shadows, a reporter who won't shut up, and a mechanic with secrets of his own, General Miles must enforce martial law to keep the mission on track.

But as the tunnel widens and the tremors shake the foundations of the world above—toppling landmarks from Paris to the poles—Rush and Everett realize the truth: **The real threat isn't just what's waiting in the dark. It's who's pulling the strings.**

*Fiery Hell* is a high-octane descent into conspiracy, xenobiology, and ancient myth. With a Proton Bomb ticking, monsters closing in, and a traitor in their midst, the team must decide: Do they save the world, or do they save themselves?

**The Hollow Earth is waiting. Can you survive the descent?*