A handful of teenagers break into the sealed basement of an old school and find a glowing circle hidden behind a metal door. What opens there should not exist at all.
The old school on the Hill had been shut for years, but that only made it more tempting. People said the corridors under the gym went on forever, left behind from the days when the building had been used as a shelter. Most of the stories were probably nonsense. Renata didn’t care.
She was the one who brought them there after dark: Max, who turned every bad idea into a joke; Karolina, who never backed down when something looked impossible; Igor, quiet and watchful with his notebook already in his hand; and Daniel, sceptical enough to complain but never stubborn enough to leave. By the time they slipped inside, their phone torches had turned the stairwell into a shaky tunnel of light.
The basement smelled of damp plaster, rust, and old paper. Torn posters peeled from the walls like dead skin. Their footsteps echoed too loudly, then seemed to vanish altogether, swallowed by the dark. At the end of the corridor, Karolina stopped in front of a locked metal door that should have been ordinary, except for the frost clinging to its edges.
"Open it," she whispered.
Max was already working the lock with a bent hairpin. It gave way with a sharp click that made everyone flinch. Beyond the door was a room none of them had expected: bare concrete, no windows, no furniture, and in the middle of the floor a circle of grey stone carved with symbols that looked too precise to be graffiti. A pale mist drifted above it, cold enough to sting their faces.
Igor crouched beside the markings and traced one with a fingertip. "This isn't English," he muttered. "Or any language I know."
"It's just old junk," Daniel said, but his voice had gone thin.
Karolina stepped closer, as if the circle had pulled her forward. The moment her hand touched the centre, the mist surged upward. The air tightened. Every sound died at once, even their breathing, as if the room had been wrapped in thick glass. Then the floor split open into a silent gap, and something on the other side answered with a cold, impossible light.
Renata took one step back. "Tell me you see that too."
The circle widened. Colours that had no name spilled through the opening, twisting and pulsing like a living wound. Behind the shimmer, a shape began to form, tall and unmoving, as if someone had been waiting there all along.