Skip to main content


Letters - start by opening one hint at a time to see if it's enough information

If you haven't found the art pieces Letters, it is covers the walls in the hallway leading towards entrance N. The walls are marked by a red dot in the picture below.





You have to search for a difference in the printed piece of paper and the actual artwork. Questions?

A Q has been changed to an O

The answer to this riddle is therefore 0

Last Updated 29.11.2023