The Ventilation Man of Gray Hollow
A 1920s Techno-Thriller

About this book:

Deep in the Appalachian dark, the air doesn't just move—it keeps secrets. Walter Finch, a Lehigh-trained ventilation engineer, knows every cubic foot of the Gray Hollow mine like the pulse in his own wrist. But when his anemometer shows fifty-six thousand cubic feet of fresh air vanishing into a sealed section that's been drowned for years, and the massive Guibal fan begins gasping against a pressure that shouldn't exist, Walter realizes the mountain isn't just leaking gas. Something is breathing down there. Something with a compressor, a motive, and the power to turn the laws of thermodynamics against two hundred men.

Superintendent Aldridge calls it a roof fall. The company maps call it impossible. But the warm, hydrocarbon-scented draft blowing *backward* through the stoppings carries the rhythm of a reciprocating engine—and the stench of a conspiracy that reaches from the fan house to the boardroom. With the state inspector due at noon and a day shift walking blind into a pressure bomb, Walter has hours to trace a phantom current through three miles of bratticed gangways, armed only with a brass Biram anemometer, a U-tube manometer, and a superintendent who'd rather bury the truth than the miners.

*The Ventilation Man of Gray Hollow* is a 1920s techno-thriller where the detective carries slide rules instead of a service revolver, and the crime scene is a living pneumatic circuit. For readers who love the industrial poetry of *The Bridge on the Drina*, the claustrophobic tension of *Das Boot*, and the engineering ingenuity of *The Martian*—this is hard science fiction set in history's most dangerous workplace, where the difference between life and suffocation is measured in inches of water gauge.