The Cold Residue

I was eleven when my class went to the old mining camp at Blackwater Flats, a name that sounded more like a cautionary tale than a destination. The camp was a cluster of rusted trailers and peeling timber cabins perched on the edge of a bog, halfway up a mountain that never seemed to catch the sun. We were supposed to learn about ‘teamwork’ and ‘resilience’ through a week of orienteering and raft-building, but all I remember is the mud that clung to everything and the smell of damp rot that seeped through the walls. My name is Cora, and I’ve never told anyone the full story, because I’m not sure they’d believe me. But I need to write it down, now that I’m older, because the fear has only grown with the distance.

The first night, we were assigned to cabins with bunks that sagged like tired spines. My bunkmate was a quiet girl named Elise, who had a pale complexion and red-rimmed eyes, as if she’d been crying for hours. She didn’t speak, just curled up under her thin blanket, facing the wall. I tried to sleep, but the wind outside sounded like a low moan, and the floorboards creaked with every shift. Around midnight, I woke to a sound that wasn’t the wind: a rhythmic scraping, like nails on a chalkboard, coming from under the cabin. I lay still, heart pounding, telling myself it was just an animal. But then I felt it: a cold, damp hand pressing against the floorboards beneath me, as if something was trying to push through. I squeezed my eyes shut and didn’t move until morning.

The next day, the instructors made us do a trust exercise in the bog. We had to walk blindfolded through the muck, guided by our partner’s voice. My partner was a boy named Rowan, who kept joking and laughing, but as we progressed, his voice grew steadier, then quieter. He started giving me wrong directions, leading me into deeper water. When I finally tore off the blindfold, I saw him standing on the bank, staring at something in the distance with a vacant expression. He didn’t respond when I called his name. The instructors dismissed it as ‘sensory overload,’ but I noticed a pattern: every time we entered the bog, someone would zone out, their eyes going dark, their lips moving as if speaking to someone else. And always, I felt a presence watching, a weight pressing on my chest.

On the third night, I couldn’t sleep. I slipped out of the cabin to find a quiet spot, but the camp was eerie under the new moon. The main lodge was locked, but a side door hung ajar, leading to the basement where they stored the raft-building supplies. I shouldn’t have gone in, but I was drawn by a faint humming sound, like a swarm of insects. The basement was damp, with a dirt floor that squelched underfoot. In the corner, I saw a grate, covered in rust, and behind it, the faint outline of a small figure. It was Elise. She was crouching, her fingers tracing symbols in the dirt, whispering in a language I’d never heard. When she saw me, she smiled—a too-wide smile that didn’t reach her eyes—and said, ‘It’s already inside you.’ I ran back to my cabin, and when I woke, Elise was asleep in her bunk, breathing normally, as if nothing had happened.

From then on, I began to notice the residue. It was a greasy film that coated everything: the windows, the plates, even our skin after a shower. The instructors dismissed it as mineral buildup from the bog, but it felt cold, and it smelled faintly of burnt hair. When I scraped it off my arm with a fingernail, it left a mark that looked like a ring of frost, and underneath, my skin was numb. The other kids started to avoid me, saying I ‘smelled like the ground.’ I’d catch them looking at me sideways, their eyes flickering with something like recognition. Even the instructors became distant, their voices flat, as if reading from a script.

On the final day, we were supposed to do a group challenge: build a raft and cross a pond. But as we assembled the logs, the sky turned an ugly green, and the water in the pond grew dark, like oil. The instructors ordered us back, but we all froze when we heard a sound—a deep, resonant thrum that vibrated through our bones. The pond began to churn, and something surfaced: a shape like a tors, but wrong, with too many limbs, its skin glistening with the residue. It let out a sound that was sobs and laughter intertwined, and I felt my own mouth open to mimic it. Then, as suddenly as it appeared, it sank, and the water went still. The instructors acted as if nothing had happened, and we were loaded onto the bus without a word.

I haven’t spoken to any of my classmates since that trip. I’ve tried to find Elise, but she moved away, and no one knows where. But the residue never left me. I still feel the cold grip on my skin, and sometimes, in the dead of night, I hear that humming, and I see the shape of that thing, pressing against the underside of my floorboards. The fear grows stronger with each passing year, and I know it’s only a matter of time before it surfaces again. The only thing that gives me comfort is writing this down, hoping that by naming it, I can keep it at bay. But I’m not sure if that’s true. I’m not sure of anything anymore.