The Zion Deception: Some secrets survive a hundred and fifty years. (Utah Shadow Thrillers Book 3)

A ranger died protecting a secret. Now Gillian Jones has to finish what he started.
Zion backcountry ranger Wade Calder spent twenty years quietly cataloging the park’s unsolved disappearances — a private obsession nobody took seriously. The night he finally finds proof it’s real, he emails a stranger’s tip line with one name and one number, and dies before dawn.
Gillian Jones isn’t opening a new case. She’s inheriting one that already got a man killed.
The trail leads to a sealed nineteenth-century chamber behind the ghost town of Grafton — built by a philanthropic trust obsessed with continuity of consciousness; a century before anyone called it a research program. A vanished 1934 artist. A survey party that came back short two men. And a shell company that’s been running the same operation, under a new name every few decades, since before Utah was a state.
When the chamber turns its attention on Gillian, it doesn’t come for her memory — the one thing she’s always trusted more than her own mind. It comes for her records. Her notes. The proof. For the first time in her life, the only witness she can trust is standing right beside her.
With a grieving daughter, a guarded tribal historian, and a preservationist who knows more than he’s telling, Gillian races a concrete truck to pull a hundred and fifty years of buried history out of the ground before it’s sealed forever — and finds out her enemy didn’t invent the nightmare underneath Zion. It inherited it.
Perfect for fans of Blake Crouch, Michael Crichton, and Preston Child, The Zion Deception is Book 3 in the Utah Shadows Thrillers — a series about the conspiracies hiding in plain sight across the American West.