TANGENT PRESS
Where straight lines meet curved thinking
Copper Scroll
The World's Most Mysterious Treasure Map
In 1952, archaeologists excavating a cave above the Dead Sea found something no one expected: a scroll made of copper.
While every other Dead Sea Scroll was written on papyrus or leather, this one was inscribed on metal. And while the others contained scripture and religious commentary, this one contained a list — sixty-four hiding places for what may be the largest undiscovered treasure in history.
Three hundred tons of gold and silver. Precise locations. Exact depths. A promise, in the final entry, that a second copy with explanations was hidden somewhere else.
This book covers:
- The Essenes and Qumran — who hid the scroll and why
- All 64 entries — translated, located, and assessed
- The scholarly debate — real treasure or ancient fiction?
- The searchers — from Allegro to Barfield and beyond
- The politics — why every excavation has been stopped
"The Copper Scroll has been in scholarly hands for seventy years. Not a single gram of its treasure has been found."
Paperback: 184 pages | 6" × 9" | May 2026
Pavlopetri
World's Oldest Sunken City
Five thousand years ago, a thriving Bronze Age city stood on the shores of Laconia. Then the sea took it.
Pavlopetri is the world's oldest known submerged city—older than the pyramids, older than Stonehenge. This book brings together every known piece of evidence about the site: from Nicholas Flemming's 1967 discovery to the cutting-edge 3D mapping that finally revealed the city's streets, buildings, and graves beneath the Mediterranean.
English
World's Oldest Sunken City
Deutsch
Die älteste versunkene Stadt der Welt
Français
La plus ancienne ville engloutie du monde
Nederlands
De oudste verzonken stad ter wereld
Ελληνικά
Η αρχαιότερη βυθισμένη πόλη του κόσμου
Italiano
La città sommersa più antica del mondo
Copernicus on Trial
The experiments he could not perform
What if you could test Earth's shape yourself—without trusting NASA, scientists, or anyone else?
This book doesn't ask you to believe. It asks you to measure.
Copernicus on Trial presents a collection of experiments that anyone can perform to investigate claims about Earth's geometry. No advanced degrees required. No expensive equipment. No faith in authority.
Each experiment includes:
- Clear predictions from both globe and flat-Earth models
- Equipment lists with specific product recommendations
- Step-by-step procedures you can follow
- Expected results and how to interpret them
From laser tests over water to stellar observation at different latitudes, from gyroscope measurements to longitude experiments—this book provides the tools to stop arguing and start measuring.
"The Earth is either curved or it is not. These are not matters of opinion. They are matters of measurement. Go measure."
Paperback: 103 pages | 6" × 9" | January 2026
ISBN: 979-8-345-51174-5
Community
Have you performed any of the experiments from our books? We want to hear about it. Share your equipment setups, methodology, raw data, and results with fellow readers. Whether your findings support or challenge conventional models, real data advances the conversation.
Join the Discussion on RedditTangent Press publishes works that examine questions others prefer to leave unasked. We believe in measurement over authority, geometry over consensus, and the courage to follow evidence wherever it leads—even if only at a single point of contact with the mainstream.