Hania and Krzysiek slip beneath an abandoned factory and find a city of glass hidden underground. Something else is already moving through its silent streets.
Hania stood over the open manhole and stared into the dark shaft below. The wind slid through the broken factory windows and caught at the hem of her jacket, cold and insistent, as if it wanted her to step back. Instead she tightened her grip on the rusted rim and leaned closer.
Behind her, Krzysiek came up with the torch. Its beam shook once across the cracked concrete, then steadied in his hand. "You still think this is a good idea?" he asked quietly.
Hania looked at the crumbling walls around them, at the soot-black machinery half-swallowed by weeds, at the fence they had climbed through an hour earlier. The old factory had been shut for years, ever since the rumours started: strange lights in the windows, metal groaning after midnight, one worker who never came back. That was exactly why they had come. Not for the thrill of it, she told herself, but for the answer buried under all those stories.
"If we leave now, we'll only wonder harder," she said.
Krzysiek gave a thin, uncertain smile and swung one leg over the opening. Hania descended first, one rung at a time, the ladder slick with damp. Below them the air turned colder and heavier, carrying the smell of wet stone and old dust. Their breathing sounded too loud in the shaft. Every few seconds the torch beam caught a glint of metal, then nothing but black.
The tunnel ended at a narrow platform carved from the rock. Ahead, a corridor stretched into darkness, but the walls were not stone. They shone faintly, smooth as polished glass, with threads of pale colour moving beneath the surface like something alive. Hania reached out before she could stop herself.
Her fingers touched the wall. The glass pulsed once, warm under her skin, and a line of light ran down the corridor. A seam split open in front of them with a soft hiss, revealing a doorway they had not seen a second before.
Krzysiek exhaled sharply. "Hania..."
She stepped through first.
The world on the other side was impossible.
They were standing in a vast underground city, silent and glowing, its towers made entirely of glass and lit from within by a cold, shifting light. Streets crossed wide and empty between the buildings. Above them, luminous shapes drifted through the air like moving maps or broken constellations. The whole place seemed to hum, as if it were waiting for someone to remember how to wake it up.
Krzysiek caught her sleeve, not because he was afraid of falling, but because he could not seem to believe what he was seeing. "This can't be real," he whispered.
Then they heard it.
A faint rustle, somewhere to their left. Not an echo. Not the wind.
Hania turned toward the sound just as a figure emerged between two glass arches. It was only a silhouette at first, but the light behind it threw a shadow across the street and that shadow moved wrong, stretching far too long and sliding ahead of the figure like it belonged to something separate. It glided over the glass pavement and stopped at their feet.
Neither of them moved.
The figure took one more step into the light, and the city around them seemed to hold its breath.