Beside all the interesting exhibits there is something else in the museum. A ghost. His name is Freddy and he is 200 years old - but for a ghost that is still quite young. That's why Freddy also likes to do nonsense. He prefers to swap numbers and letters. Will you clean up the mess?
Come to the museum, follow the trail and find the right numbers and the solution word.
See you soon!
Many thanks to Anja Röthlisberger for the development of the trail.