Vltava Trail

A few days ago, my grandparents were attacked in their apartment. The thieves turned the entire apartment upside down, but nothing important was lost. The grandfather, who ended up in the hospital after the attack, later revealed to me that he was on the trail of a valuable treasure. In the last three years, he managed to accumulate a large amount of evidence, which fortunately he hid in a safe place at our cottage. The treasure has been guarded for centuries by prominent Czech personalities who protected it with the help of riddles, ciphers and puzzles. Grandpa is currently unable to continue the search, but we cannot let the treasure fall into the wrong hands. And that's why we're looking for helpers!