On a dull tenement stairwell, Antek and Lena spot a glow that should not exist. It leads them toward a sealed cellar door and something waiting in the dark.
Antek had long since stopped expecting anything interesting from the tenement on Jasna Street. The building smelled of damp plaster, old soup, and wet shoes; its stairs groaned like they were tired of carrying people’s lives up and down every day. In the evening, when the sky went violet over the rooftops, he liked to linger on the landing just to hear the city settling itself outside the cracked windows. It was the closest thing to silence he ever got.
That was where he saw Lena for the first time.
She stood three steps below him, one hand on the railing, a backpack slung over one shoulder, as if she’d been there for a while and the staircase had simply accepted her without asking questions. She was the new girl from the third floor, the one with the red hair everyone had already noticed and pretended not to. Up close, she looked less like she was lost and more like she was waiting for something to happen.
Neither of them spoke. The stairwell held them in its hollow hush, broken only by the distant clatter from a flat somewhere above. Then Lena’s head snapped toward the wall opposite the lift.
Antek followed her gaze.
A thin band of light was spreading over the plaster, pale at first, then warmer, as if someone were slowly turning up a hidden lamp behind the wall. The bulb in the ceiling fixture had been dead for weeks. No one had fixed it. No one ever did anything quickly in this building. And yet the glow moved, climbing the staircase in measured pulses, brightening and fading with a rhythm too steady to be accidental.
Antek took a step back.
The light changed again. It bent across the cracked paint, stretching into shapes that looked almost like letters, or symbols, or a language he didn’t know how to read. They flickered once, twice, and then slid farther down the landing, away from the front doors and toward the old cellar at the far end of the corridor.
Lena caught his sleeve before he could speak. Her fingers were cold, but her eyes were alive with the kind of fear that feels a little like excitement.
They moved together, quietly, to the shadow behind the pillar. From there they could see the cellar door clearly. It had been locked for years. People in the building muttered about pipes, mold, rats, and other excuses that sounded solid enough to stop anyone asking questions. But now a gold seam of light was leaking from under the frame, thin as a blade.
Lena leaned closer to Antek. “Do you see that?” she whispered.
Before he could answer, something shifted behind the door.
The light thickened, then trembled, and in the narrow strip under the wood an outline began to form, slow and uncertain, as if whatever waited below had just realised they were there.