Joanine Library — Guardians' Secret
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Coimbra, PortugalJoanine Library — Guardians' Secret
📍 Coimbra, Portugal·🕐 2h – 2h30·📍 ~1.8 km
Also available as:HistoricalMysteryFantasySpy thriller

Joanine Library — Guardians' Secret

Uncover the dark secret of the Joanine Library's bat guardians and the hidden medieval prison beneath. Solve the ancient code to expose what the scholars concealed from King John V.

📱 1 to 10 phones · 1 team per phone · Independent codes

Difficulty
·From age 8 years
Starting point :Largo da Portagem

In 1717, King John V commissioned the opulent Biblioteca Joanina within the University of Coimbra, the oldest university in Portugal and former Royal Palace

8
stages
~1.8 km
route
2h – 2h30
at your pace
🚶
walking

Joanine Library — Guardians' Secret

🎭Your Mission

You are a royal archivist in Coimbra, 1728, serving King John V of Portugal.

Your delicate mission: locate a lost ancient manuscript that could shake the foundations of

Discover Coimbra, a thousand-year-old university city, by unravelling the best-kept secret of the Biblioteca Joanina, a UNESCO-listed Baroque gem.

The story that haunts this land

Your journey in Coimbra begins at Largo da Portagem, a central square by the Mondego River that, since the Middle Ages, has seen travelers and academics converge. Here, the statue of King Denis I, founder of the Universidade de Coimbra in 1290, reminds you of this city's long history. From here, you begin the ascent towards the historic campus, a path taken by generations of students, and the heart of your quest for the lost manuscript. Each step on the cobblestones brings you closer to the educational and architectural heritage, classified UNESCO in 2013, of this city in central Portugal.

Pass through the Porta Férrea, an 18th-century wrought-iron gate, built around 1740, adorned with allegorical statues of Justice and Truth. This main entrance to the historic campus leads you directly to the Pátio das Escolas, the epicenter of the Universidade de Coimbra. Looking up, the Torre da Universidade de Coimbra, 32 meters high and built between approximately 1493 and 1515, stands, its belfry marking the academic schedule for centuries. It is here, in the heart of this national monument, that the first clues are revealed, linked to student traditions and ancient knowledge.

Your investigation then leads you to the Via Latina, a historic gallery connecting the university buildings, and to the Jardim da Manga. This Renaissance garden, created for King John III between 1528 and 1532, was adjacent to the royal palace, converted into a university. Its octagonal fountains and covered galleries, with water sources symbolizing fertility, are a testament to 16th-century architectural ingenuity. The manuscript could have been hidden here, as royal gardens were often places of secrets and reflections, away from the prying eyes of Praça 8 de Maio.

Continue towards the Arco de Almedina, an 11th-century medieval gate, a remnant of Coimbra's Moorish walls. Restored in the 19th century, this arch bears a Latin inscription and is classified as a national monument. It marked the access to the old fortress that became the university. This historic passage, near the city center, represents a junction between eras, a place where civilizations met and where knowledge was exchanged, or lost. Your exploration of Coimbra's heritage brings you closer to the truth about the manuscript.

Finally, your quest culminates at the Biblioteca Joanina, built in 1717 during the reign of King John V of Portugal. This Baroque gem houses approximately 250,000 ancient volumes on exotic oak shelves, funded by Brazilian wealth. It is here that the secret of the guardians is revealed: bats, hunting insects at night, are the silent protectors of these precious works, their droppings being cleaned every morning. This national monument of the University of Coimbra, a UNESCO World Heritage site, bears witness to a living history and a continuous educational role, where your archivist mission concludes by revealing an unexpected facet of this emblematic place.

1290
Founding of the University of Coimbra by Dinis I.
1537
Permanent transfer of the University to Coimbra.
1728
Beginning of the construction of the Joanine Library under John V.
Far more than an escape game

A game, a guided tour and a heritage guide — all in one

You're not just buying an escape game. You're carrying a living guide — historical anecdotes, forgotten legends, key monuments, hidden architecture — unfolding as you go.

🏛️
Hidden historical gems

At each stop, places ordinary guides miss — secret façades, sculpted crests, alleys steeped in history.

📜
Anecdotes & legends

Every riddle is rooted in a real historical fact or local legend. You leave with dozens of stories to tell.

🏗️
Architecture & heritage

Learn to read buildings — flamboyant Gothic, Baroque, Art Deco — like a real art historian, while having fun.

🚶‍♀️
Immersive wandering

Walk through the city like a novel's character — every alley becomes a stage, every square a theatre.

🎙️
Immersive audio narration

A voice walks with you at every step, tells the story of each place, reads clues, adds a cinematic feel.

📲
Yours forever

Keep access to the guide & game for 1 year. Come back any time, share it with friends.

« You will not leave this city the way you entered it. »

How does it work?

🏛️
Outdoor escape game

Explore the city on foot solving puzzles based on real historical facts. No locked room — the city is your playground.

📱
On your smartphone

No app to download. Play directly from your browser. Guided step by step, at your own pace.

👨‍👩‍👧‍👦
Unlimited players

One purchase per phone is enough. Play with family, friends or as a couple — everyone participates.

🎯
Augmented reality

Point your phone at the façade: a historical character appears and speaks to you in your language. Golden letters magically write themselves on the wall to reveal the puzzle answer.

🤖
AI that helps you

Stuck? Progressive personalised hints. The character repeats the puzzle on demand — at your own pace.

🗣️
32 languages

French, English, German, Spanish, Italian + 27 other languages auto-translated by AI.

🎟️

Want to go deeper?

Places tied to your adventure — optional entries, totally up to you · per person

Machado de Castro National Museumoptional
€10. Housed in the former episcopal palace, it features collections of sacred art, sculpture, and archaeology, with a unique Roman cryptoporticus in Coimbra.
Optionnel
/pers.
Santa Cruz Monasteryoptional
Free. Founded in 1131, it is one of Portugal's most important medieval monasteries, housing the tombs of the first kings of Portugal, D. Afonso Henriques and D. Sancho I.
Optionnel
/pers.
Chanfana Tastingoptional
€20-30. Savor this traditional slow-cooked goat dish in a clay pot, typical of Portugal's central region, often paired with a local Bairrada wine.
Optionnel
/pers.
Boat trip on the Mondego Riveroptional
€15-25. Discover Coimbra from a different perspective with a relaxing boat trip on the Mondego River, offering unique views of the historic city's banks and the Universidade de Coimbra.
Optionnel
/pers.
Budget if you do them all / pers.~0

The Route

8 stages through the city

The gameplay: AR, camera, hidden clues

📱Search clues with your cameraRA

At each stop, open your phone camera: an augmented reality character appears on the façade and speaks your language. Hunt the clue — it materializes as golden letters on the real wall or floats in front of you. When you find it, the phone vibrates, an AR chest opens and reveals your answer fragment. 8 stops, 8 clues to find with the camera, 1 final code.

🎭

The stops on your route are a surprise. You'll discover them one by one, guided by your phone, starting from the meeting point.

8
original puzzles
24
min of narration
🪙 24
TripCoins granted
16
GPS waypoints

How does it work with a group?

One phone = one team. Pick the number at checkout (1 to 10).

🧍
1 phone

Solo, or a group sharing the screen. One team, one code.

👥
2-3 phones

Family, couple, or 2-3 teams competing. Each phone has its own code and its own score.

👨‍👩‍👧‍👦
4 to 10 phones

Friends, bachelor/bachelorette, small office outing — each their own code, each plays at their own pace. Tiered pricing then €6 flat per phone from the 6th.

  • All codes are independent — play at the same time OR separately, each team advances at its own pace.
  • Leaderboard between your teams + global game leaderboard — each score appears in the public ranking.
  • More than 10 phones or need a personalized quest? Discover custom tours.
🕒No date to pick · Code valid 1 year · Play whenever you want

Ready to live this adventure?

Get my code · 12€

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🔒 Secure payment · Code in 5 min · Free cancellation

Practical info

Starting point
Largo da Portagem
Directions on Google Maps
🕐
Duration
2h – 2h30
At your own pace
👥
Players
Unlimited
From age 8
📍
Distance
~1.8 km
Historic center
Accessibility
Partial
Some slopes and stairs
🌐
Languages
17 languages
Built-in translation

Why this route?

🦇

The mysterious bat colony

Uncover the unexpected role of these nocturnal creatures in manuscript preservation.

📚

Millennial manuscripts

Delve into the secrets held within invaluable ancient works.

🏛️

The Baroque architecture of the Joanine

Admire the splendor and ingenuity of an architectural masterpiece.

Knowledge is a light that even darkness cannot extinguish.

Uncover the secret alliance between erudition and nature.

★ Innovation 2026

9 features nobody else has

OddballTrip combines gamified play, augmented reality and AI. All our competitors deliver 1 or 2 of these angles. We deliver all 5.

🎁

AR treasure chest

A golden chest floats in front of the monument. Tap → opening animation → reveals a secret message.

🧙

AR narrator character

Point your phone at the façade: a knight, witch, monk, sailor, detective or ghost appears full-screen and speaks to you in your language with their dedicated ElevenLabs voice (each character has their own unique voice) — your living guide.

📜

Magic golden letters

At the puzzle climax, golden letters magically write themselves on the real wall — that's the puzzle answer. An unforgettable visual effect.

🎧

Written + audio narration

Every puzzle available as text AND voice-over: read at your own pace or listen eyes-free while walking. Great in groups and for accessibility.

🧭

360° radar + vibration

A mini-radar shows the target even behind you, and the phone vibrates when you aim in the right direction.

📸

Heritage storytelling

Every puzzle weaves in real historical facts (architecture, era, anecdotes). You learn by playing — like a gamified audioguide.

🤖

Progressive AI hints

3 levels of AI-generated help: vibe → where to look → answer format. You're never stuck.

🤳

AR selfie memento

At the end of the game, capture a selfie with OddballTrip banner + mascot, shareable on Instagram, TikTok.

📱

Zero app to install

PWA technology: open the link, it plays in your browser. Same quality as an app, no App Store hassle.

Frequently asked questions

Q01Do I need to download an app?

No, never. You get a link, you click, it plays in your browser. That's the point of a PWA: same as an app, without the hassle.

Q02Does it work offline?

GPS yes (handled by your phone). Maps yes (tiles cached). AI and hints need an intermittent 4G connection.

Q03How long does a game take?

1 h 30 to 2 h 30 depending on your pace. The timer runs but only for the leaderboard — you play at your own tempo.

Q04What happens if I'm stuck?

You get 3 levels of hints per puzzle (increasing penalty). If truly stuck, you can skip the step (45-min penalty but you keep going).

Q05What's the age range?

From 12 without an adult, from 6 with an adult reading puzzles. Works for families, couples, friend groups, companies.

Q06What if my city isn't in the catalogue?

Pre-register or contact us — we'll email you as soon as your city is live.

Q07What is augmented reality exactly?

Point your phone at the façade: a historical character appears full-screen and speaks to you in your language. At the puzzle climax, golden letters magically write themselves on the real wall — that's your answer. After each puzzle solved, a treasure chest floats in front of you. Seeing is believing.

Avis des aventuriers

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Your turn to play

Discover Coimbra, a thousand-year-old university city, by unravelling the best-kept secret of the Biblioteca Joanina, a UNESCO-listed Baroque gem.

12€
1 phone
23€
2 phones
33€
3 phones
42€
4 phones
50€
5 phones
56€
6 phones
62€
7 phones
68€
8 phones
74€
9 phones
80€
10 phones

1 purchase = 1 phone. Play several on the same device.

🕒No date to pick · Code valid 1 year · Play whenever you want
Get my code · 12€

No calendar booking. Code sent immediately by email.

🔒Secure payment · Code in 5 min · Free cancellation

🪙+24 TripCoins granted with your booking

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