Henrik Gjelstrup

Military science fiction · Cosmic horror · Archaeological adventure

Stories from the fault lines of reality.

Military expeditions encounter impossible machines. Archaeologists disturb forgotten powers. Starships return carrying ghosts. History opens doors that should have remained closed.

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Coming September 18, 2026Project Aesir · Book oneFallow

The writing desk

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Fallow arrives this September. Project Aesir continues with Node Seven.

Valhalla Base emerging from a storm on the Jostedalsbreen glacier

Archive 01 · Military science fiction / cosmic horror

Project Aesir · Book one

Fallow

On Norway's Jostedalsbreen glacier, Captain Kate Vance is sent to secure a thousand-year-old Viking longship built with technology that should not exist. When an ancient beacon awakens and a catastrophic storm seals Valhalla Base beneath the ice, the team discovers that the real threat is already inside—and survival may cost Vance her humanity.

Coming September 18, 2026

Interactive experienceEnter the Fallow field archive

Fallow · Pre-order

The ice kept it secret for a thousand years.

Project Aesir begins September 18, 2026. Reserve the Kindle edition now on Amazon.

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The author

Engineering the impossible.

Henrik Gjelstrup is a Danish engineer and author of speculative fiction. His stories draw on a career spent investigating how structures behave under forces most people never see—and an enduring fascination with history, myth and the unknowable.

He writes military science fiction, archaeological adventure and cosmic horror: precise worlds where capable people face phenomena that refuse to obey the rules.

From the notebook

On the writing desk

Project Aesir · Book one

Fallow

Publishing September 18, 2026.

Project Aesir · Book two

Node Seven

Work in progress. The mission continues beyond Fallow.

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