Basia, Kuba, and Igor find a hidden clock in their school basement and are pulled into a time they do not recognise, where someone seems to have been waiting for them.
Basia, Kuba, and Igor sat on the concrete steps leading down to the school basement, pretending they were only resting. They were not supposed to be there, but rules had a way of becoming less important when curiosity got hold of them. The oldest part of the school had a reputation for odd noises, cold drafts, and doors that should have been locked. Ever since Mrs. Wozna had mentioned voices coming from underground, the three of them had been unable to think about anything else.
Basia found the hidden door first. It was almost invisible behind a cupboard full of mops and brushes, small and metal and half swallowed by rust. In the middle of it was an engraved clock, cracked right through the face. Kuba leaned in, set his shoulder against it, and pushed. The door gave a long, stubborn groan before swinging inward.
A narrow staircase dropped into darkness. The air that rose from below was cold and wet, smelling of dust, stone, and something older than the school itself.
They climbed down one by one, Kuba leading with a torch. Its beam skated over damp brick walls, broken pipes, and a corridor that seemed to go on too far for something hidden beneath a classroom block. At the end stood a huge clock on a black iron frame, its pendulum still, its face spiderwebbed with cracks. Instead of numbers, strange markings ringed the dial, and the hands were fixed in the shape of a V.
Igor stepped closer. "This is ridiculous," he muttered, though his voice had gone thin.
He reached out and touched one of the rusted cogs.
The clock answered with a low hum.
Blue light burst from inside it so suddenly that all three of them stumbled back. The floor shuddered under their feet. The walls seemed to breathe. For one terrible second, the corridor vanished behind flickering images: horsemen charging through smoke, strange machines with spinning wheels, streets they had never seen, faces in the dark turning toward them.
Basia grabbed Kuba's sleeve. The light tightened around them, sharp and cold. The sound of the clock grew faster and faster until it was inside their heads. The world lurched, twisted, and dropped away.
Then there was impact, silence, and the smell of rain on old stone.
When Basia opened her eyes, she was standing on a cobbled square surrounded by people in heavy cloaks and rough woolen coats, all staring as if they had just seen ghosts. Stone buildings crowded the square, narrow windows flickering with candlelight. Somewhere nearby, a bell rang once, slow and deep.
The clock stood before them, ticking softly, its hands moving on their own.
Basia looked at the boys, her throat dry. "Where are we?"
Before either of them could answer, a man in a dark coat stepped out from the crowd and moved toward them with unsettling calm. His face was pale, his eyes fixed not on them, but on the clock.
"At last," he whispered. "We have been waiting for you. You have only one chance to get back."
He lifted a hand and pointed at the clock.
A crack ran across its face with a sharp, glassy snap, and the whole thing began to come apart.