A new chapter in city exploration. Our first mystery is in the making

FOR THE CURIOUS. THE KEEN-EYED. THE ADVENTUROUS.

The city is
your case file.

Walk the streets. Follow the evidence.
Uncover the story hiding in plain sight.

Immersive historical murder mysteries that turn real city streets into an adventure. A little history. A little intrigue. A lot to discover.

Explore the missions
Real-world exploration. A whole new perspective.
An oxblood leather writing blotter on a mahogany bureau with a banker’s lamp, sealed letters and an unlit cigar EXHIBIT 001 / YOUR ADVENTURE BEGINS
THE PAST LEFT CLUES. FOLLOW THEM.
Part walking tourPart escape roomEntirely your adventure

YOUR CURIOSITY IS ALL YOU NEED

Every great mystery
starts with a first step.

No stage. No sidelines. You’re in the story.
Gather your favourite people and follow the trail.

01

THE INVITATION

Open your case.

Your story begins with a physical clue pack. Maps, curious documents and secrets that deserve a closer look.

02

THE EXPLORATION

Take to the streets.

Let the city be your guide. Follow the map, spot overlooked details and find the extraordinary in the everyday.

03

THE REVELATION

Piece it all together.

Unlock digital clues, listen to witness accounts and connect the evidence. The final discovery is yours to make.

FROM OUR CASE ARCHIVE

A city full of stories.
One waiting for you.

OUR FIRST CHAPTER · IN DEVELOPMENT
A narrow, atmospheric medieval street with timber-framed buildings and warm lantern lightCASE FILE № 001YORK, ENGLAND

A FIRST LOOK AT WHAT’S TO COME

The Alchemist’s
Last Cipher

A vanished alchemist. A trail of cryptic notes. A secret buried in the heart of an ancient city. Some doors were never meant to stay closed.

2–3 hours* Ages 12+*★★★★☆ A curious challenge*

A preview concept. Title, location and experience details are to be confirmed. Bookings aren’t open just yet.

COBBLE & CYPHER · CASE ARCHIVE

A matter of
great curiosity.

To the observant reader,

There are stories this city has never told. Look beyond the familiar. Follow what others overlook.

The next chapter is in your hands.

C & CEVIDENCE 01 / ILLUSTRATIVE PREVIEW
A good story deserves
something you can hold.

OLD-WORLD INTRIGUE. NEW WAYS TO PLAY.

Tangible clues.
Digital discoveries.

There’s something special about unfolding a map or breaking a seal. We pair that feeling with the possibilities in your pocket.

A little less screen. A little more discovery.

Unfold the story with maps, letters and puzzling artefacts. Examine the evidence, trade theories and make the city your investigation room.

  • Beautifully tactile story materials
  • Clues woven into real places
  • A case to solve together

A glimpse of our planned experience. Final pack contents will be confirmed with each mission.

We believe the best way to discover a city
is to have a reason to look closer.

THE IDEA BEHIND COBBLE & CYPHER

GOOD STORIES BRING PEOPLE TOGETHER

Your business.
Part of the plot.

That tucked-away café. The pub with a past. A shop full of character. We’re looking for local places to help bring our city stories to life.

New faces through your door.

Give curious explorers a reason to discover your corner of the city.

A stop worth staying for.

A clue to ponder. A coffee to linger over. A memorable part of their day.

As involved as you want to be.

From hosting a hidden clue to becoming a character in the story. Let’s explore the possibilities.

A FEW THINGS, BEFORE YOU SET OFF

Every question
leaves a clue.

A little practical knowledge for your next adventure.

What exactly is a city mystery?

Think of a walking tour crossed with a story-driven escape room. You explore real streets, examine physical and digital clues, and work together to solve a mystery. The city is the setting, and you’re the detectives.

When can I book the first mission?

Our first case is being written and tested. Bookings, pricing and the confirmed launch city will be announced when the experience is ready. The case on this page is an illustrative preview.

Do I need a phone or a special app?

We’re designing the digital clues to work in your phone’s browser. Expect to need a charged smartphone and mobile internet. We’ll publish precise requirements before bookings open.

Are the stories based on real crimes?

We’re developing historical mysteries and may explore carefully researched real events in future. Each mission will clearly explain whether its story is fiction or based on documented history.

Is it suitable for children and accessible routes?

We’ll publish age guidance, content notes, walking distance and access information for each route before you book. Historic streets can include cobbles, steps and uneven surfaces, so details will be specific to each mission.

Can my business become part of a mission?

We’d love to hear from cafés, pubs, shops and venues interested in bringing local stories to life. Open the partnership enquiry above to tell us about your business and city.

SOME STREETS ARE JUST THE BEGINNING.

Your next adventure
is hiding in plain sight.

Find your first clue

A SMALL CASE FOR A CURIOUS MIND

A city in code.

A note slipped between the pages of an old atlas reads:

“I hid our destination three steps ahead.
Walk the alphabet back to find me.”

B R U NAN ILLUSTRATIVE PUZZLE · NOT A LIVE MISSION

FROM THE DEVELOPMENT DESK · CASE CONCEPT 001

The Alchemist’s
Last Cipher

In a city built on centuries of secrets, an alchemist disappears, leaving behind a collection of coded notes. You have one question to answer: what was so valuable that it had to be hidden?

PROPOSED SETTINGYork, England

FORMATPhysical evidence + digital clues

ESTIMATED LENGTH2–3 hours, subject to route testing

STATUSIn development · launch date to be announced

This is a fictional preview concept, not a confirmed product. Title, city, route, age guidance, accessibility, price and pack contents will be confirmed before bookings open.

BECOME PART OF THE STORY

Let’s connect
the dots.

Tell us a little about your place and the part you’d like to play.

Our partner inbox is being set up. You can save an enquiry draft to keep for when enquiries open. No details are sent or stored by this website.

PLAIN AND SIMPLE

Your privacy.

This launch preview uses no analytics, advertising cookies or tracking scripts. The homepage puzzle runs in your browser.

The separate Bureau uses an essential session cookie to keep your desk signed in, lasting no longer than your investigation access. The case registry stores your group’s findings, read correspondence and access times so teammates share the same investigation. No customer names, telephone numbers or payment details appear in the Bureau.

The partner form prepares a draft on your device. It does not send your details to a server. Choosing to email the draft opens your own email app; you review and send it yourself.

Our hosting provider may process basic technical request data, such as IP addresses, for delivery and security. The Bureau uses a hashed network identifier for short-lived abuse limits. Bookings and WhatsApp delivery are not connected in this preview. Before live bookings launch, this notice will be updated with the responsible business’s details, purposes, providers and retention information. Contact cobble.cypher@outlook.com with privacy enquiries.

Last updated: 19 October 2026.

CURIOSITY IS FOR EVERYONE

Room for
every explorer.

This website supports keyboard navigation, visible focus indicators, reduced-motion preferences and zoom. Interactive evidence has text labels, and the sample mystery can be played without sound.

Route accessibility is a separate part of our development work. We’ll provide details of surfaces, steps, distances, facilities and any alternatives for each mission before bookings open.

We have not yet commissioned an independent accessibility audit.