Kuba lived in the oldest house on Coal Street. This place always seemed different to him - creaky staircases, arched windows and, strangest of all, dozens of clocks placed in almost every room. They rarely showed the same time, and some of them made a quiet ticking sound, even when the hands stood still. One afternoon, when his parents were not at home, Cuba invited his friend Maja over. Maja was curious and liked amazing stories, so she readily agreed to see the 'clock museum', as the boy jokingly said. They walked through the hall, stopping at a large carved clock standing right next to the stairs. Cuba wiped the dust off the glass and showed Mai that the hands only moved when there was complete silence in the house. The girl squinted, trying to make sense of this peculiarity - the clock was ticking, but time was not flowing normally. Something wasn't right here. Subconsciously, they felt that the rest of the clocks also hid something unusual. They walked through the living room, where three tiny watches hung on the wall, all set for different times. Cuba turned one of them and.... then a loud clatter sounded upstairs. - 'I think it's coming from Grandma's room,' Kuba said quietly, glancing at Maja. He had always avoided this room by a wide margin. Grandma had died many years ago, but her room remained untouched, as if waiting for its owner to return. Maja pulled Kuba by the sleeve. - 'We have to go in there,' she whispered, although she seemed a little frightened. With a heavy heart they climbed the stairs. The door to the grandmother's room was barely ajar, and a pale light was seeping from behind it. Cuba took a deep breath and pressed the handle. To their surprise, there was a new clock in the middle of the room - a shiny silver one that had not been there before. On the dial, instead of numbers, there were strange symbols. The hands moved faster and faster, and the air in the room became cool and thin. - What are these signs? - Maja asked in a whisper. Suddenly, the clock rang a protracted bell, as if announcing the beginning of something unknown. At the same moment, outside the window, the house began to change: the walls began to ripple, and a quiet, resonant whisper came from the clock. The friends looked at each other in disbelief - everything around them was spinning, and they were standing on the threshold of something they could not yet explain....