The Cipher for Moonlight

Hardly anyone gets their hands on such a secret! Yuri Tsvetkov and his friends were lucky: there it is—the yellow envelope made of thick paper, and inside, a ciphered treasure map. Now all that remains is to solve the puzzle and then—off to search for the treasure! After all, it seems the ruins of the count’s estate marked on the plan are somewhere nearby. The missing details of the riddle have already been found, backpacks are packed, parents are convinced that the friends are going on a class trip. It looks like the budding treasure hunters planned for everything—except for the competitor.