Three teens on a school mission reach a supposedly abandoned Moon base and find a message, a symbol, and a voice that should not exist there.
Lunar-7 had been shut down for years, if the official reports were to be believed. Yet there it stood beyond the frosted domes of Moon Valley, half-buried in silver dust, as real and silent as a held breath. Tola eased the rover forward, her gloved hands tight on the controls, while Michal watched the terrain ahead and Ali leaned over his tablet, muttering updates under his breath.
For the first time since launch, Tola felt the full weight of the Young Explorers Mission. They were teenagers on the Moon, part of the first science programme ever sent beyond Earth, and every kilometre of the assignment felt too big to be real. She kept her eyes on the scanner, tracing the lines and numbers as if they might explain why her stomach had turned to ice.
Tola was the youngest of the three, but she noticed details faster than most adults. She had grown up in Gdansk solving puzzles for fun and had spent half her childhood imagining hidden doors, lost signals, and codes no one else could read. Michal, their group leader, was the kind of person who made panic seem unnecessary. He rarely raised his voice, and somehow that made everyone trust him. Ali, meanwhile, could coax life out of broken tech with nothing but a cable, a screen, and stubbornness. He never went anywhere without his hand-built tablet.
The sun was already sinking behind the lunar horizon, stretching the valley into blue-black shadows. The old base looked peaceful from the outside, almost abandoned by time itself. That made Tola like it less.
The outer airlock opened with a slow mechanical groan. Inside, the corridor was cold enough to sting through their suits. Their helmet lights cut pale cones through the dust as they stepped in, one after another, and the door slammed shut behind them with a sound that seemed to shake the whole station.
Ali gave a short laugh. "Relax. Just an automatic lock. I'll override it in a minute."
But Tola had already stopped moving.
On the wall beside the inner hatch, a red indicator light blinked furiously. Beneath it, someone had scratched a symbol into the metal by hand, fast and hard, as if they had been in a hurry. It looked like a spiral twisting into the shape of an omega.
"Someone was here before us," Tola whispered.
The corridor answered with a low hum.
At first she thought it was the base waking up around them, some old system struggling back to life. Then the speakers crackled overhead, and a voice broke through the static. It spoke in Polish, but the words were broken by a strange, warped hiss, as if they were being dragged from somewhere far away.
"Do not open... the door... they are coming back here... Time... is shrinking..."
Michal went still. Ali lifted his tablet, his face draining of color as the screen filled with static.
Then, from the dark opening of a side room, came the unmistakable sound of footsteps.
Slow. Deliberate.
Coming toward them.