The Valley of the Stars has always been a place full of mystery. It was here, in the middle of vast forests and under a starry sky, that the small town of Olszarn lay. In Olszarn lived three friends - Lena, Max and David. Each of them had a unique quality: Lena had acute hearing and a keen sense of smell, Max could solve any problem, even the most difficult one, and Dawid... Dawid had always claimed that he could see more than the others, although no one quite believed him. One night in June, Lena could not fall asleep. She was sitting on the windowsill looking at the shining stars when suddenly she heard a soft, dragging sound, as if someone was moving metal over stone. Her heart beat faster. Intrigued, she reached for her phone and texted Max: "Do you hear that?" Max wrote back immediately, "Yes, I'm coming to you." David joined them a few minutes later. After a brief discussion, they decided to check together where the strange sound was coming from. Supplied with torches, they dashed through the deserted streets, heading for the Old Forest - a place where no one looked after dark. The trees there grew so thick that the moon barely squeezed through the leaves. At one point, Lena pointed her finger at the ground: - Look! There were footprints in the damp moss that they could not recognise. They were neither human nor animal. They led deep between the trees. They walked slowly, feeling that each step took them into a completely different world. Until they came to a huge, mossy stone, under which was something like a door. The door was carved into the rock, decorated with strange markings that phosphoresced slightly in the twilight. David reached out his hand to touch one of the symbols. At the same moment, the door shuddered and the air was filled with a quiet, pulsing light. A barely audible whisper came from inside: - Only those who dare to enter will discover the truth. The friends looked at each other. The wind moved the branches, shadows danced on the ground. Suddenly the door swung open and an unearthly light shone from behind it. Someone or something began to emerge from inside....