The Mystery of Amsterdam — The Lost Ledger

The briefing

The Lost Ledger of Amsterdam

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Amsterdam, 1717. Beneath the bridges and merchant houses of the canal city, a secret ledger disappeared. It was said to hold the location of Amsterdam's greatest treasure — guarded by five figures who shaped the destiny of the city.

A merchant. A keeper. A botanist. A painter. A cartographer.

Three centuries later, a fragment of the ledger has resurfaced. Follow the canals. Decode the symbols. Recover what Amsterdam forgot — and learn the truth about what the city's real fortune always was.

The briefing — the recovered dossier, the five guardian cards, compass and maps

How it works

Real streets. Real clues. One cipher.

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STEP 01

Read the city

At each stop, a durable detail you read off the real streets — statues on a roofline, a house number, the sides of a tower — gives you a secret number.

STEP 02

Work the cipher

Set your decoder wheel to that number and decode the guardian's hidden message. Nothing is handed to you — you crack it yourself.

STEP 03

Recover the ledger

Each guardian gives up one letter. Together the five name the key — and unlock the final secret of the city. Stuck? The Heron gives nudges, never answers.

Decoder Wheelyour cipher tool

The Ledgerthe final lock

5 Guardian Cardsgilt portraits & ciphers

Map & Dossierroute + sealed clues

The guardians

Five keepers of the Ledger

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Each holds one fragment of the ledger — and one corner of Amsterdam. Find them in order.

The Merchant — Dam Square — GUARDIAN 01
power, money, trade

The Keeper — Begijnhof — GUARDIAN 02
faith & hidden knowledge

The Botanist — Flower Market — GUARDIAN 03
some bloom, some deceive

The Painter — Rembrandt Square — GUARDIAN 04
seeing what others miss

The Cartographer — Zuiderkerk — GUARDIAN 05 · FINALE
maps, navigation, truth

The trail

One canal loop. Five guardians. One truth.

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A ~2.5–3 km walk through the heart of the old city — Dam Square, the hidden Begijnhof, the floating Flower Market, Rembrandt Square and the Zuiderkerk — ending at De Oude Kerk, the oldest church in Amsterdam. No spoilers: the puzzles are yours to crack.

The Trail — the six stops across Amsterdam, ending at De Oude Kerk

Preview

Open the dossier

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A recovered field dossier is your guide: a story to follow, a puzzle at every stop, and artifacts and clues drawn from the real city.

Dossier preview — puzzle example and canal notes

Family friendly, with depth — who it's for

Book your mission

Assemble your team

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€25 flat

ONE GAME · ONE PRICE · RECOMMENDED 2–3 PEOPLE

Pay €25 & get your game link →

SECURE CHECKOUT VIA STRIPE · YOUR PRIVATE GAME LINK ARRIVES AFTER PAYMENT
PLAY ANY DAY · SELF-GUIDED

Prefer a platform you already use?

ALSO ON · GETYOURGUIDE · COMING SOON CONTACT

Good to know

Questions, answered

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Do I need an app or signal?

No app to install — the whole game runs in your phone's browser. After you pay you get a private link to your digital field kit, a decoder wheel and the Heron, your handler for hints. You just need one phone per group and a bit of mobile data.

How hard are the puzzles?

Clever but fair, and varied — observation, counting, dates and house numbers, a compass, and one simple cipher you learn once and use at every stop. If you're ever stuck, the Heron gives escalating nudges — never the full answer.

How long and how far?

About 1.5–2 hours over a ~2.5–3 km route through the old centre, mostly flat. Go at your own pace and stop for coffee anytime.

Good for families?

Yes — great for ages ~12+ with an adult. Secret societies and hidden knowledge, but the tone stays adventurous, not dark, with no scary or violent content.

When can we play?

Any day, any time — it's self-guided. Daylight is best for reading the city and enjoying the canals.

Is this a real treasure hunt?

It's a story-driven mystery grounded in real Amsterdam history. The "treasure" is a twist worth walking for — no digging required.