When Lena, Michal, and Basia stay late in their ivy-covered school, a hidden tunnel under Classroom 3B leads them into a buried hall that should not exist.
On Shadow Street, just beyond the park, stood a school that looked as if it had outlived every generation that passed through it. Ivy climbed the brickwork, the windows were deep-set and watchful, and even in daylight the corridors seemed to hold on to their own shadows.
When the last bell rang on Friday afternoon, Lena, Michal, and Basia were still there. Officially, they had stayed to help the librarian sort through a collapsing stack of books. Unofficially, they were waiting for the building to go quiet enough to listen for the sound they had all heard over the past few weeks: a faint rattling somewhere below the stairs to the basement.
The basement was off-limits. The door was always locked, and the new padlock on it gleamed as if it had been put there only to make the warning feel more serious. The librarian had just disappeared into the language room to lock up when Lena nodded toward the empty corridor.
“Come on,” she whispered. “I heard it under the floor in 3B yesterday. Not a rat. Something heavier.”
Michal gave her a doubtful look, but he followed anyway. Basia went last, glancing over her shoulder at the long strip of corridor behind them, where the evening light was already fading into the glass.
Classroom 3B looked harmless enough. Old desks. A cracked blackboard. Posters with the alphabet and faded grammar rules curling at the corners. But the air inside felt wrong, too still, as if the room were holding its breath.
Basia dragged one of the benches away from the window. Michal shifted a rug that had been half-hidden beneath it. Then his shoe struck something solid.
He froze. “There’s something here.”
Lena dropped to her knees and brushed away the dust. A brass ring, tarnished but polished by hands that had touched it many times before, sat flush with the floorboards.
Michal took hold of it and pulled.
The boards gave way with a low groan, opening into a narrow stairwell that dropped into darkness. From below came a thin celadon glow, impossible and steady, and with it a whisper so soft they almost mistook it for the air moving through the room.
The three of them stared down at the opening.
Then the whisper came again, clearer this time, drifting up from the hidden passage like a voice speaking from very far away.
“Hello,” it said. “You’re late.”