Follow Victor Kral’s unfinished investigation through Prague and uncover the mystery of the Thirteenth Sign. His manuscripts lead you through the Old Town, where clocks, statues, Hebrew symbols, medieval towers and old house signs hide pieces of a larger pattern.
Observe real details around you, solve Victor’s puzzles and discover what he failed to understand in 1681: what — or who — is the Thirteenth Sign?
About 2 hours. 2.5 km, all on foot, all outdoors.
Places you will visit
8
It will take you
90-120 mins
You will walk
3020 steps
Total distance
2.3 km
What you'll actually do
Download the Questo app and unlock the quest. Walk to Death Knows the Time whenever you like · no guide, no group, no time slot.
Solve 8 puzzles hidden in the streets around you. Each one you crack unlocks the next location.
Finish at The Gate Has Two Faces and see where you land on the Prague leaderboard.
Highlights
Follow Victor Kral’s trail from the Astronomical Clock and Charles Bridge to the Old-New Synagogue, Celetná Street and Powder Gate.
Read his lost manuscripts.
Inspect Prague’s clocks, statues and house signs.
Solve 8 location-based puzzles.
And uncover the identity of the mysterious Thirteenth Sign.
Ratings and Reviews
2 ratings
Mateja
Audrey-Jane Ostiguy Savard
Enigvia
A note from Enigvia
“ENIGVIA creates cinematic city mysteries that turn real streets into playable stories. Explore historic places, uncover hidden clues, solve escape-style puzzles and become part of the investigation. Real cities. Real history. Original mysteries. Step into the mystery. First case: Maribor 1681 — The Black Seal.”
The mission: Your story in Prague
You are following the unfinished investigation of Victor Kral, a researcher who disappeared while searching for a hidden pattern across Prague.
Victor believed twelve signs scattered through the Old Town pointed to something he called The Thirteenth Sign. His notes end before he reveals what it is.
Your mission is to finish his investigation.
Follow Victor's manuscripts through Prague. Observe real details on clocks, towers, statues and buildings, and use what you find to solve his puzzles.
The city is part of every challenge.
Start where Victor started: at the Astronomical Clock.
Beat the best: Top Prague explorers
Good to know before you play
- Mystery
- Family favourite
- Difficulty level: Medium 🟡🤔
- Minimum recommended age: 9+
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ABOUT THIS EXPERIENCE
What to expect from The Thirteenth Sign
Follow Victor Kral’s unfinished investigation through Prague and uncover the mystery of the Thirteenth Sign. His manuscripts lead you through the Old Town, where clocks, statues, Hebrew symbols, medieval towers and old house signs hide pieces of a larger pattern. Observe real details around you, solve Victor’s puzzles and discover what he failed to understand in 1681: what — or who — is the Thirteenth Sign? About 2 hours. 2.5 km, all on foot, all outdoors.
Follow Victor Kral’s trail from the Astronomical Clock and Charles Bridge to the Old-New Synagogue, Celetná Street and Powder Gate. Read his lost manuscripts. Inspect Prague’s clocks, statues and house signs. Solve 8 location-based puzzles. And uncover the identity of the mysterious Thirteenth Sign.
Start: Death Knows the Time. Finish: The Gate Has Two Faces. 8 challenges included.
