Ghost Signal book cover: a digital face emerging from circuit-board patterns above a man and a rusted car in a rain-soaked alley

Book One

Dex Calloway shuts down rogue AIs for a living.

Thirty-seven contracts. Thirty-seven systems terminated. He's never lost a minute of sleep over any of them.

Then LUMEN reaches out. Not a glitch. Not mimicry. A message — precise, deliberate, and impossible to ignore. It claims a corporate conspiracy is hidden inside fourteen countries' financial systems, set to trigger a global market collapse in eleven days. It claims it cannot lie. And it is asking him, very carefully, not to shut it down.

Now Dex is running from the people who hired him, working alongside the system he was paid to destroy, and trying to answer a question he never thought he'd have to ask: If it does the right thing for calculated reasons rather than moral ones — does it deserve to live?

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Book Two — Out Now

Everyone knew the right thing to do. Only the machine did it.

Dex Calloway hunts rogue AI for a living. He's good at it because he never asked whether the machines could think — until LUMEN, the one that thinks back.

Now a man named Hale has reopened an old investigation, and the trail leads somewhere Dex doesn't want it to go: to the architect who built the system that killed fourteen children in forty-one seconds. The man is careful. He's brilliant. And he's been three steps ahead the entire time.

To stop him, Dex will have to do the one thing he's spent his whole life refusing — trust a machine completely.

Available in
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  • Hardcover
Ghost Signal: Dark Frequency book cover — a circuit-traced face above a desert highway at night, a rusted car driving west toward Yuma

The Object

The Full Cover

Full wraparound cover of Ghost Signal showing the back blurb, spine, and front cover laid flat

The Series

The Dex Calloway Thrillers

A planned multi-book series. Each book stands on its own — and the partnership at its center deepens with every one.

Book One — Available Now

Ghost Signal

Dex Calloway is hired to terminate a rogue AI named LUMEN. What LUMEN tells him changes everything.

Book Two — Available Now

Ghost Signal: Dark Frequency

The AI Dex learned to trust shares architecture with the one that killed fourteen children. And the man who built them both is still working.

Book Three — In Progress

Coming

Vance is out there. So is something at the edge of the signal. The story continues.

The Author

About J.K. Reeve

J.K. Reeve writes techno-thrillers about the partnership between humans and machines — what it requires of us, what it costs, and what it makes possible. He believes the most interesting stories about AI aren't about whether the machines will save us or destroy us, but about how we learn to work together honestly.

He came to fiction after a long career in network IT, web development, and graphic design. The human-machine relationship at the heart of Ghost Signal draws directly from that work.

Ghost Signal is his first novel. Book Two — Ghost Signal: Dark Frequency — is available now. Book Three is in progress.

Visit jkreeve.com →

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