They thought the secret of Warwick mansion had been solved and the spirit had found peace, but now new signs have emerged that were previously hidden. New suspects, places, and objects that do not fit into the picture — and the presence of the ghost is strong once again.

In Mysterium: Hidden Signs, the spiritualists must return to the old mansion and investigate these disturbing visions. Will they understand all the instructions this time and give the ghost its final rest?

Mysterium, the asymmetric, cooperative mystery-solving game is back with its first expansion: Mysterium Hidden Signs. This expansion includes 6 new characters, 6 locations and 6 objects enabling multiple new game configurations. The ghost has 42 new vision cards with which to communicate.

Step inside, be seated and let your sixth sense guide you! Return to the manor - your seat at the séance table awaits...

3 to 7 players
10 +
Playing Time 42 minutes


Released: 19 May 2026