Three friends investigate a strange light in an abandoned school and find something far more unsettling than a rumour.
In the small town of Borów, Janek had only been living with his family for a month, yet he already knew which places felt ordinary and which ones did not. The old brick school on the edge of town belonged to the second kind. Its windows were broken, its courtyard had been swallowed by weeds, and everyone said it had been empty for years. Everyone also had a different story about why.
Janek did not believe any of them. Not until a rainy night when he looked out of his bedroom window and saw a light flicker in one of the upper windows of the abandoned building.
The next morning he told Zosia and Marta while they were waiting by the school gates. Zosia listened with narrowed eyes, as if she were already turning the story over in her head. Marta, who never needed much encouragement, was the first to speak.
"A ghost would not use a light," she said. "Ghosts are supposed to be dramatic."
"Then maybe it is thieves," Zosia replied. "Or someone hiding there."
By the time lessons were over, the three of them had a plan. They borrowed torches, tucked an old town map into Janek's backpack, and crossed the muddy field behind the houses just before sunset. The closer they got, the more the school seemed to press against them, dark and heavy against the grey sky.
The front door hung crookedly on its hinges. Janek pushed it open and a cold smell drifted out, damp plaster and old wood and something else he could not name. Their footsteps echoed down the corridor. Dust floated in their torch beams like tiny pale insects.
On the wall beside the stairs, Marta stopped so suddenly that Janek nearly bumped into her. She pointed at a mark half hidden beneath peeling paint: a symbol scratched so deeply into the plaster that the torchlight caught its edges.
Zosia crouched near the floor. "Janek," she said quietly, "look at this."
She held up a small key made of dark metal, cold enough to make her flinch.
For a second, none of them spoke. Then a door slammed somewhere deep inside the building.
The sound rolled through the corridors like a warning. Janek's torch flickered. Then, from the far end of the hallway, a light flashed on behind a broken pane of glass, bright and sharp as an eye opening in the dark.
A whisper followed. Not loud, not clear, but close enough to make Janek's skin tighten.
And then a figure moved at the end of the corridor.