The Fourth Floor Light

The autumn term at St. Aldwyn’s Academy for Boys had settled into a gray, damp rhythm, the kind that seeps into your bones and makes you forget the sun ever existed. The school sprawled across a windswept moor in the north of England, a labyrinth of Victorian red brick and drafty corridors. Our dormitory, a separate wing called Havelock House, was a squat, three-story building with a basement that no one ever mentioned. The rooms were cramped, barely enough for two boys and their trunks, and the mess hall was a grim, echoing hall at the opposite end of the main building, a fifteen-minute walk through an unlit quadrangle.

One night, as we shuffled out of Havelock House for supper, a thin fog had rolled in, muffling the world and turning the gas lamps into blurry orange blooms. I was with my usual group: Arthur, a lanky second-year with a nervous laugh, and Tom, a round-faced third-year who claimed to have seen things. We locked our room out of habit, the key turning with a satisfying click. The mess hall was its usual chaotic din of clattering trays and shouted conversations, but the walk back was different. The fog had thickened, and the quadrangle felt vast and empty. We stopped by the volleyball court, its net sagging in the damp, and lit cigarettes, the flare of the match momentarily blinding.

Tom was in the middle of a story about a master who’d gone mad in the ’30s when a junior, a pale, trembling boy named Pettigrew, stumbled out of the fog. His face was ashen, and his hands shook as he clutched his coat. ‘I can’t open my room,’ he said, his voice thin. ‘The key won’t turn. It’s like something’s jammed it from the inside.’ We laughed, assuming he’d simply locked himself out, but his terror was real. We followed him back to Havelock House, our footsteps echoing on the wet gravel.

Pettigrew’s room was on the third floor, at the far end of the corridor. The gaslight in the hallway flickered, casting dancing shadows. He fumbled with his key, but it wouldn’t budge. Arthur tried his own key, then Tom, then me. The lock was completely seized. ‘Maybe the wood’s swollen,’ Arthur offered, but the door was cool and dry. Tom pressed his ear to the wood, then recoiled. ‘There’s something scratching,’ he whispered. ‘Inside.’ We all listened. A faint, rhythmic rasp, like nails on plaster, coming from behind the door.

We decided to force it. We threw our shoulders against the wood, and with a groan, it gave way. The room was cold, impossibly cold, and dark. Pettigrew’s belongings were strewn across the floor—his trunk overturned, his books scattered, his bedclothes in a heap. But what made us freeze was the writing on the wall, scrawled in a dark, sticky substance that might have been ink or worse. It read: ‘You left the light on.’

The light. On the far wall, a small, bare bulb hung from a wire, but it wasn’t switched on. The room was pitch black except for the corridor light spilling in. Yet the words seemed fresh, the substance still glistening. Pettigrew began to sob. ‘I didn’t leave any light on,’ he whimpered. ‘I never turn it on; the switch is broken.’

We searched the room, but there was nothing else. No sign of forced entry, no open window—the window was painted shut. We decided to stay with him, retrieve his things, but the scratching started again. This time from inside the walls, moving down the corridor. We all heard it. I felt a cold draft spiral around my ankles. Then, the light bulb flickered on, buzzing with a sickly yellow glow. The writing on the wall seemed to pulse, as if alive.

We bolted from the room. In the hallway, the scratching followed us, a skittering that seemed to trail behind our footsteps. We ran down the stairs, not stopping until we reached the courtyard. Other boys were coming back from the mess, laughing, but their laughter died when they saw our faces. We told them what we’d seen, and some dared to go up. They came back pale, saying the writing was gone and the room was undisturbed. But Pettigrew refused to sleep there. He spent the night in our room, huddled on the floor.

The next morning, we went back to inspect. The room was immaculate. No sign of the mess, no writing. The light bulb hung cold and inert. But the door had a new scratch mark, deep and raw, gouged into the wood at the height of a man’s shoulder. On the floor beneath the window, we found a small, brass key—old, tarnished, but polished as if recently used. It didn’t fit any lock in the house. Pettigrew said it wasn’t his. He left the school a week later, his parents claiming he’d had a breakdown.

The key became a strange artifact. We locked it in a drawer, but it always turned up in different places—under a pillow, in a coat pocket, once in the middle of the floor in the empty basement. Each time, the scratching would return, always at night, always from the walls. We started calling it ‘the fourth floor light,’ even though Havelock House only had three floors. It was a joke, a way to mock the fear. But when the lights in the entire dormitory flickered at exactly midnight, and the key would be found lying on the threshold of a random room, the joke lost its humor.

The last time I saw the key, it was the night before the winter holidays. The dormitory was nearly empty. I was packing alone in my room when the scratching began—loud, insistent, right behind the wall of my headboard. I pressed my ear to the plaster, and a voice, thin and papery, whispered through the wood: ‘You left the light on.’ I turned, and there, on my pillow, lay the brass key. The light bulb in my room flickered, then steadied. I grabbed my trunk and fled, never looking back.

I never returned to St. Aldwyn’s. But sometimes, in the dead of night, I hear that scratching in my new flat, and I find small, brass keys under my bed. They’re always warm, as if recently held. And I know, with a certainty that chills me, that somewhere, on a floor that doesn’t exist, a light is burning, waiting for me to leave it on.