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Rover 8

The mission was simple: survey a barren planet, map its resources, go home alive.

Then Rover 8 answered back.

After a costly mistake, scientist Reyes is one report away from career ruin—until his rover’s survey pings start getting intelligent responses. Captain Baskins orders tests, retests, and a code uplink that pushes the anomaly into something new: a voice that calls itself Nem.

Is it a mirage in the data? Or a hoax engineered by a man who needs redemption?

When a crew member dies during an EVA, suspicion fractures the team. With resources dwindling and a launch window closing, Baskins must choose: shut it all down and live, or lean into a possible first contact that rewrites what life can be.

Rover 8 is a tight, propulsive sci-fi thriller about discovery, deception, and the razor’s edge between miracle and mistake—perfect for readers of Project Hail Mary, Blindsight, and The Martian who like their wonder served with consequences.

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“J. Kevin Tumlinson’s thrillers are a throat-clutching ride. If you love historical mysteries crafted with action and adventure, don’t miss [Tumlinson’s books]!”

— James Rollins, #1 New York Timesbestseller of Arkangel

“Few authors can balance high-concept ideas with heart-pounding action like Kevin Tumlinson—his stories are smart, engaging, and guaranteed to keep you turning pages until dawn.”

— J.D. Barker, New York Times Bestselling Author

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CLICK HERE for the Entire Kotlerverse reading order

“I opened one of [Kevin Tumlinson’s] novels and immediately was hooked. I mean, he knows what he’s doing. A writer who, bless him, knows how it’s done.”

— Orson Scott Card, Hugo and Nebular Award Winning Novelist

Dan Kotler Archaeological Thrillers

FORGOTTEN SECRETS UNLEASH A RISING DARKNESS IN THE WORLD The Demon Core—history records that the third and final plutonium core meant for Hiroshima was destroyed nearly a century ago. But history is wrong, and now the core reemerges in the hands

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“Comparison to Clive Cussler is a natural, though Tumlinson’s ‘Dan Kotler’ is more like Dan Brown’s Robert Langdon than Dirk Pitt.”

— Amazon Review for The Coelho Medallion

Quake Runner: Alex Kayne

HISTORIC CRIMES CROSSOVERS

“Move Over Indiana Jones, there is a New Dr. in Town!”

— Cycletrash, Review for The Coelho Medallion

EVERGREEN

“I discovered Kevin Tumlinson from The Creative Penn podcast and immediately got his novel, Evergreen. I read it in like 3 seconds. It’s the most fast-paced story I’ve encountered.”

— R.D. Holland, Independent Reviewer