The old high school on Polna Street had stood abandoned for years. Many said it was supposed to be a community centre after renovations, but it never opened its doors. On a warm May evening, Maja, Kuba, Nina and Adrian decided to spend the night there - in spite of the gossip and boredom that had been weighing on their hearts like lead for weeks. They climbed through the window at the back of the building, hushing their voices and laughter. The echoes carried through the empty, faded painted corridors. Each of them carried different emotions: Maja hid her anxiety under a mask of irony, Cuba feigned courage, Nina was genuinely curious, and Adrian seemed too quiet, as if something was gnawing at him from the inside. In the biology room they laid out their sleeping bags. When they lit the torches, shadows danced on the walls like animals from ancient legends. They talked incessantly, trying to drown out the nervous energy. Challenges were made: do you dare to walk alone through the corridor to the floor? Would you close your eyes for a minute in the chemistry room? Everyone wanted to prove that they were not afraid of anything - and yet everyone felt something different as the darkness lengthened around them. Adrian disappeared first. No one noticed when he left the room - all that was left of him was his jacket on a chair. Only after a while did they hear quiet footsteps somewhere in the distance. Maja felt a stab of anxiety: was it really Adrian, or had someone else entered the school? Kuba and Nina exchanged communicative glances in which fear mixed with excitement flashed through. Then there was a sound, as if something heavy had moved on the first floor. Maja felt her throat tighten and her heart pound like crazy. She could no longer distinguish whether it was dominated by fear, curiosity or a growing anger at Adian, who had left them alone. They made the decision to follow the sound. The narrow corridor led them towards the stairs, which seemed to creak louder than before. They stepped carefully, slowly, each step bringing them deeper into the zone of their own feelings. Upstairs, torches brought the door to the old art studio out of the gloom. It was partially ajar, a disconcerting light emanating from behind it. For a moment all three were silent, listening to their own breathing. Maja was the first to reach out and press the handle. The door opened with a slight resistance, revealing the interior of the studio where....