Volume I · Chapter One

Hold the questions
history never answered.

Terra Arcana is a collector's archive of the world's unanswered mysteries. Volume I opens with Atlantis — struck, sealed, and numbered among 250.

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Founders edition £19.99 · retail £24.99. Pre-sale opens soon. Shipping worldwide.

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How it works

Four steps into the archive.

Terra Arcana is built around a single collector loop. Claim a chapter, register it, build the archive, and wait for the next one to open.

I — Chapter

A complete artifact.

Every release is a full collector set — museum-quality coin, velvet pouch, printed insert, and claim code — boxed as one chapter of the archive.

II — Claim

Register your claim.

Create your Archive Passport, enter your claim code, and the chapter is recorded against your verified email as a signed member piece.

III — Archive

A circular ledger.

Your collection opens as a circular ledger — one page per Volume, one slot per chapter. Sealed chapters remain hidden until you've claimed them.

IV — Continue

New chapters open.

As each chapter is released, it settles into its page. Completed Volumes change what the next one can be. The archive grows with you.

The Archive

Three Volumes. Five chapters each.
One archive.

Terra Arcana is organised into Volumes — curated chapters bound by theme, era, and the kind of question that won't let go. Volume I is open. Volume II is being written. Volume III is not yet discussed.

Volume I Founders Edition

Lost Worlds

Civilisations swallowed by water, sand, and time.

Five chapters. 250 pieces each. Places that existed without question — and then vanished without explanation.

I Atlantis — The Sunken City Live

II Doggerland — The Drowned Land Sealed

III Petra — The Rose City Sealed

IV Chapter Four Sealed

V Chapter Five Sealed

Enter Volume I

Volume II In Development

Hidden Cities

Places that exist in plain sight.

Cities concealed by jungle, by legend, and by deliberate erasure — the kind that never fully left the map, but never fully arrived on it either.

Five chapters to be announced.

Not yet open

Volume III Undisclosed

Forgotten Places

Not lost — erased.

The third Volume will explore locations deliberately removed from maps, records, and collective memory.

Chapter details withheld.

Withheld

Atlantis coin — illustrated front depicting the sunken city

Volume I · Chapter I

Atlantis

The Sunken City

The first chapter of the Terra Arcana archive begins with the oldest question of all: a city described with certainty by a philosopher, then lost completely to the sea.

The Atlantis coin is struck in two faces. The front carries an illustrated depiction of the sunken city — sunlight fracturing through dark water, columns still upright, the world above already disappearing. The reverse carries the trident seal and the chapter's legend.

250 pieces. Signed into the archive. Once the Founders Edition is claimed, Chapter I closes.

Edition

250 pieces · Founders

Pre-sale

£19.99

Retail

£24.99

Shipping

Worldwide

Secure your chapter What's inside the set

Checkout opens soon. Join the Archive to be first in line.

Inside the Set

The complete collector's set.

Every Terra Arcana chapter ships as a full artifact — four parts, presented together.

No. 01

The Coin

Double-sided and struck with museum-quality detail. Front: the illustrated chapter artwork. Reverse: the chapter's seal and full legend in deep relief.

No. 02

The Pouch

Black velvet drawstring pouch, designed for display and storage, finished with the Terra Arcana mark in gold.

No. 03

The Insert

Printed collector card carrying the story of the chapter, the coin's specifications, and your edition details.

No. 04

Your Claim Code

A sealed claim code binds the chapter to your Archive Passport. Paired with your verified email, it signs the piece into your collection permanently.

The Archive

A living ledger of everything you've claimed.

Your Archive Passport opens as a circular ledger — one page per Volume, one slot per chapter. As you claim each piece, it rises into the ledger, signed and sealed.

Sealed chapters remain hidden until you claim them. Completed Volumes change what the next one can be.

Create your Passport See the full ledger

From the Founder

Why I'm building this.

By training, I'm an electrical-mechanical engineer. By passion, I'm a scuba diver. But somewhere between the blueprints and the ocean floor, two questions kept pulling at me: what makes something tick, and what secrets did past civilisations leave behind? I stopped ignoring them — and built Terra Arcana.

Terra Arcana is an archive of the world's unanswered mysteries — built with care, unveiled with purpose, and held in your hands as a tangible piece of history: a collectors' coin worth keeping.

But ultimately, the long-term ambition is bigger than coins. I want Terra Arcana to become a community of explorers, researchers, and curious minds — partnering with organisations that actively preserve places and records which keep the mystery alive. Harnessing the potential of modern technology, I hope to look back further and find what is thought to have been lost.

Welcome to the first chapter. I'm glad you're here for it.

Tom Founder, Terra Arcana

Founders Edition

Volume I opens in real time.

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The Founders Edition opens soon.

Volume I is a founders edition. 1,250 pieces in total, 250 per chapter. The Archive hears first — about claim access, new chapters, and the questions we're following next.