Sebastian Reth

A student of the crack in the door and the whisper in the hallway, obsessed with the points where morality meets desperation. Now looking beyond the Coromandel cliffs to the ancient dust of Mars.

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Rust and Dust
In the dust of Mars, one man found where we came from. The world tried to bury it.

Rust and Dust

On the final day of humanity's third Mars mission, geologist Noa Bannister makes a discovery buried four billion years deep in the basalt of an ancient Martian crater — a perfect sphere. Unmarked. Impossibly hard. Utterly inexplicable by any known science.

Alone on the surface of a dying planet, Noa begins to uncover the truth about what the sphere actually is — something that answers the only question that has ever truly mattered: where did we come from?

But four billion years of silence is about to become very loud. The Americans want it classified. The Russians didn't come to share. And somewhere in orbit, a clandestine military order — codenamed Yellow Sparrow — has just been issued.

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Broken Hills
Lost in the Bush. Hunted by the Elite. The Broken have eyes.

Broken Hills

In the scarred wilderness of the Coromandel’s Broken Hills, a weekend tramp turns into a nightmare. Survivors discover they have stumbled upon the ultimate gated community: a secret bunker complex for billionaires hidden deep within ancient gold mine shafts.

Trapped in the dense bush with no signal and ruthless private security forces closing in, the hikers must stop being victims and start acting like prey if they want to survive the night.

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The Soul Beneficiary
A Forged Deed. A Mercantile Hitman. A Town Built on Buried Secrets.

The Soul Beneficiary

Julian Miller is an expert at finding the cracks in other people’s balance sheets. But when his Auckland investment firm collapses, he is forced to flee to his only remaining asset: an isolated bach on the cliffs of Onemana.

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The Thames Protocol
Synthetic Mercy. Cold Logic. Zero Trace.

The Thames Protocol

In the quiet wards of Thames Hospital, the "Protocol" AI is sleek, silent, and supposedly infallible. But when a patient is found dead in a locked room, the system's cold logic points to a terrifying conclusion.

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Available Now (Non-Fiction)

Between the Lemons
Happiness isn't a destination. It's a muscle.

Between the Lemons

Drawing on evolutionary psychology, stoic philosophy, and hard-won experience, this practical toolkit will help you Hack Your Survival Brain and overcome "Leisure Guilt."

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The Author

Sebastian Reth

Sebastian Reth

Sebastian Reth is a writer of dark, atmospheric thrillers and speculative fiction. When he isn't plotting the downfall of fictitious characters, he can be found exploring the rugged backroads of the Coromandel on a motorcycle or experimenting with gin distillation in his garage. He lives in New Zealand with his wife, and is a father to three sons.

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