Tonight was unusually black, and the narrow road winding through the forest around Silent Valley seemed endless. Marta glanced nervously through the window of the old Volkswagen, sitting next to Wojtek, who was driving with determination, as if he hoped that the sooner they drove, the sooner they would find the answers to all their questions. In the back seat, the silence was broken by the murmur of conversation - Anka and Igor were just reading printed notes from an old diary they had found by chance in the university archives. When the floodlights flashed, everyone fell silent - before them, among the trees, a huge building emerged from the shadows. The old mansion was even more impressive than in the photographs. Despite the crumbled staircase and shutters swaying in the wind, it looked as if it was just waiting for someone to arrive. - Ready? - Marta asked, although her voice trembled slightly. They went inside. The interior, though full of dust, seemed untouched for years. Every step echoed in the high corridors, where portraits of people with serious faces hung on the walls. Looking for clues, they split up - Marta and Wojtek went upstairs, Anka and Igor stayed on the ground floor. After a while, Marta noticed something strange - a section of wall at the end of the corridor looked different, as if it had been freshly repainted. She gently moved her hand and her fingers felt the cool metal doorknob hidden behind the old carpet. She glanced at Wojtek, who didn't say a word, just nodded slowly. Meanwhile, Anka and Igor made their way to the library, where they found a small locked trunk among the dusty volumes. The closure was covered with strange signs - symbols they could not read. A quiet clatter sounded when they tried to open it, and a crack opened in the wall opposite. Wojtek and Marta rushed down the stairs, attracted by the voices of their friends. The four gathered in front of a dark passage that led deep into the earth. A faint but distinct whispering and the smell of old paper came from inside. - What do we do? - whispered Anka, looking at the others. Before they had time to decide, the sound of quiet footsteps came from the corridor, and the door to the manor squeaked as if someone had just stepped inside....