Summer is coming, final tests are being successfully written and it seems that everything is finally over and you can rest peacefully... But here an ordinary trip to the village for the summer turns into an amazing adventure and a treasure trove of new knowledge! An ordinary inscription on the wall of the house can become the key to a mysterious message, and an ancient record from the 19th century - a real map pointing to hidden treasures! The main thing is to apply all your knowledge of physics, logic and mathematics in order to correctly solve all the riddles and not deviate from the right path. An exciting quest awaits you not only through the world of cryptography and encryption practice, but also a journey through the backwaters of history, geography and even genetics! After all, knowledge of mathematics and physics is not only a boring theory, but above all a practice applicable to all areas of our lives.