For decades, the Heidemij were dismissed as myth—an engineering conspiracy whispered in the halls of power. But history tells a different story. Engineers have always played a quiet but pivotal role in shaping global security—sometimes for good, sometimes not. In World War II, a small covert band of engineers worked inside the Resistance across the Netherlands, Belgium, and France.
They became known as The Heidemij.
After the war, they didn’t disband. Instead, they went deeper underground, hidden inside global engineering giant Arcadis. For over 70 years, they operated in silence—watching, preparing. Now, rising geopolitical chaos has drawn them back into the light to protect the critical infrastructure that society is built on.
This is The Heidemij Uprising.
Fight a war with bombs and your enemy will fight you for years,
shut off their drinking water and they fold in weeks.




Local Zone is Book One of the Heidemij Uprising and is now available on Amazon.com. Local Zone is available in e-book and paperback at this time.
The Heidemij insignia or "Mark" is a the gear of a flood gate that appears to be rising from the base petals of a tulip. There is a half moon crescent inside the flood gate gear. They symbolized the technical nature of the Heidemij and their Dutch heritage. The half moon represents constant transformation and continuous growth.
Fans of the gripping new thriller series, The Heidemij Uprising, have something big to celebrate: it’s now confirmed there will be 4 books in the full saga. The Heidemij Uprising centers around a covert society of elite engineers who operate in the shadows to defend the world’s most critical infrastructure against modern threats — blending action, technology, and urgent environmental themes into a fast-paced, cinematic universe. Book One, Local Zone, launched in June 2025 and sets the stage with a high-stakes plot involving a coordinated terrorist attack on U.S. data centers. Book Two, Swift River, is set for release in early 2026. It moves the action into a different critical sector: water supply infrastructure. and continues with the chilling repercussions of a world that revolts against data centers and AI.
Patrick Keaney is a global engineering executive and has worked on critical infrastructure projects across five continents. He sat on the Arcadis Bellevue Foundation and Priority Board for 9 years. He first started writing Local Zone in 2016, after serving two terms on the Bellevue Foundation.
He then led Amazon Web Services’ global water vertical and most recently served as CEO of a water technology startup backed by Amazon ClimatePledge. A recognized speaker on sustainability, innovation, infrastructure resilience and cybersecurity, Keaney brings real-world expertise to the pulse-pounding fiction of The Heidemij Uprising.
He is also a proud military Gold Star Father.
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"Fear the Bones"