Olive, Michal and Lena had long been in the habit of wandering around their town in the evenings. On this day, when the rain was drumming against the windows and the streets were empty, they decided to take a look at the old, abandoned railway station at the edge of town. The place was shrouded in legends - it was said that footsteps and quiet laughter could be heard there at night, even though no trains had run there for years. Passing through the crooked front door, they felt the cold and smelled the dust. Michael's torch illuminated the graffiti-covered walls and abandoned benches. "Look!" - whispered Lena, pointing to a section of the floor from which a rusting key protruded. They carefully picked up the key and began to look around for something to which it might fit. In the corner of the hall, behind a pile of old newspapers, they spotted a dusty trapdoor. After a few tries, the key turned with a quiet click. The door squeaked open, revealing a steep staircase leading downwards. They descended carefully, each step echoing. What awaited them at the bottom was the sight of a huge, unlit hall, full of old luggage and crates. In the middle stood a wooden table, and on it lay a pocket watch. Tick tock... tick-tock... the old mechanism measured time, although no one had wound it for decades. Olive, with a beating heart, reached for the watch. At the same moment, the clock flashed with a strange light and the hands began to move backwards. Silent whispers echoed around them, and the walls of the hall seemed to move. Suddenly, the torchlight went out completely. The friends stood in complete darkness, hearing only the accelerated tick-tock of the watch and the increasingly distinct footsteps coming from somewhere deep in the underworld....