The summer heat had baked the red brick of Millbrook Primary into a dull terracotta, and the air inside the converted Victorian schoolhouse was thick with the ghosts of chalk dust and floor polish. It was 5:30 PM, and the long, single-storey wing added in the 1970s stood silent, its four ‘flexible learning areas’ separated only by half-height shelving units and sliding partitions that were perpetually stuck halfway. I was the last to leave, as usual, having stayed to water the wilting bean plants in the science corner and to file a mountain of marking that had seemed endless.
I remember the exact moment the quiet became something else. I was standing by the staffroom door, keys in hand, when I heard it: a soft, rhythmic tap-tap-tap, like a fingernail on glass, coming from Classroom 3. I froze, my heart doing a clumsy thump against my ribs. Everyone had gone home. The caretaker, old Mr. Hesketh, was off with a bad back. I was alone.
My feet, stupidly curious, carried me towards the sound. The hallway stretched before me, the lino floor gleaming under the strip lights. The tapping grew louder as I approached the open-plan space. It wasn’t a tap anymore; it was a measured, deliberate tapping, like someone drumming their fingers impatiently on a wooden desk. I turned the corner into Classroom 3.
The room was empty. The chairs were upside down on the tables, the way we leave them for the cleaners. The whiteboard was blank, the blinds half-drawn, casting long slants of dusty light across the floor. The tapping had stopped. I stood there, breathing shallowly, listening to the hum of the old fridge in the staffroom. Then, it began again. But this time, it wasn’t tapping.
It was writing. A sound like a piece of chalk being dragged across a blackboard, but with a sharp, scraping edge to it. It came from the far wall, where a mounted blackboard was still fixed from the pre-whiteboard era. I watched, my mouth dry, as words began to appear on that blackboard in a wavering, chalk-white script that smelt of old slate and damp. The words formed slowly, each letter scratched out as if by an invisible hand.
The words read: ‘HELP ME FIND HER.’
I didn’t know what to do. My legs felt like lead. I couldn’t tear my eyes away. A second message started to appear beneath the first, the chalk scratching with a furious intensity. ‘SHE’S IN THE WALLS.’ Just as the final ‘S’ was scratched out, a low, crumbling groan echoed from the partition wall that separated Classroom 3 from Classroom 4. Before I could react, a section of the plasterboard bulged inward, as if something heavy was pushing against it from the inside. A fine dust trickled down, and for a moment, I thought I saw a small, pale hand press against the bulge, only to be pulled back.
The lights flickered. The scratching stopped. And then, in the silence that followed, I heard a child’s giggle, muffled, coming from directly behind the wall. It was a happy, innocent sound, but it turned my blood to ice. I backed away, my heels catching on the lino, and I didn’t stop until I was out of the building, the door slamming shut behind me, the lock clicking with a finality that felt like a lie.
I told myself it was a prank, a hallucination, the heat. But I couldn’t shake the image of that hand, or the plea on the blackboard. Over the next week, I avoided Classroom 3 entirely. But the messages kept appearing, no matter how many times the caretaker buffed the board. They always said the same two things, but with variations: ‘SHE’S BEHIND THE SHELVES.’ ‘SHE’S IN THE FLOOR.’ And each time, I’d catch a faint, rhythmic sound from inside the walls, like a girl bouncing a ball, soft and steady, always at the same afternoon hour.
Then, one scorching Friday, as I was locking up, the main entrance door wouldn’t budge. No matter how hard I turned the key, the lock refused to click. Frustrated and trembling, I jiggled the handle, and the door swung open with a sickening ease. But I wasn’t looking at the car park. I was looking at the hallway, which stretched longer than it should have, the classrooms at the end bathed in a strange, greenish gloom. I turned to shut the door, but the door vanished. I was standing in the hallway, my keys still in my hand, but the exit was gone. The walls were damp, streaked with green, and the air was cold and mineral.
I walked forward, my footsteps echoing in a space that felt too large. The doors to the classrooms were all closed, each one bearing a fresh coat of black paint. The first door had a small, child-height handprint pressed into the paint, as if someone had tried to push through while it was still wet. The second door had a name scratched into the wood: ‘EMMA’. I knew no Emma at the school.
I reached the door to Classroom 3. It stood ajar, a sliver of darkness within. I pushed it open slowly. The room was not the bright, familiar space. It was a Victorian schoolroom: rows of wooden desks with inkwells, a cast iron stove, and a huge, scarred blackboard at the front. A young girl in a grey pinafore sat at the front desk, her back to me. She was writing with a piece of chalk, her hand moving in a jerky, precise pattern. She didn’t turn when I spoke, only pointed at the blackboard above her. There, in the same wavering script, was written: ‘SHE WAS MY BEST FRIEND. SHE FELL INTO THE WALLS. THEY NEVER LOOKED FOR HER.’
The girl slowly turned her head. Her face was smudged with chalk dust, and her eyes were dark, wet holes. She was the girl from the wall, I knew it. She smiled, a thin, knowing smile, and then she put her finger to her lips. ‘Shhh,’ she whispered. ‘She’s still listening.’ And without another word, she faded, leaving only the chalk in her hand, which dropped to the floor with a clatter.
I woke up on the staffroom floor, the late afternoon sun streaming through the windows, my keys digging into my palm. The school was silent, normal. The blackboard in Classroom 3 was blank. I checked the partition wall: no bulge, no handprints. I drove home in a daze, and I haven’t been able to go back. I quit soon after, and we moved away.
But sometimes, in the quietest hour of the afternoon, I hear a faint tapping from behind the walls of our new house. And when I close my eyes, I see that blackboard, and the words continue to write themselves in my mind: ‘SHE’S STILL HERE.’ I know they’re not talking about the house. They’re talking about me. They want me to go back. They want me to find her.