The summer I turned seven, my parents sent me to stay with my grandmother in her old farmhouse on the edge of the salt flats. I remember the smell of dust and dried lavender, and the way the house creaked even when there was no wind. My grandmother was a quiet woman who spent her evenings knitting by the radio, which only ever played static after nine o’clock. I thought it was strange, but I never asked.
One night, I was given the guest room at the end of the upstairs hallway. It was a narrow room with a single window that looked out onto the endless white flats. The moonlight made the landscape look like a frozen sea. I fell asleep quickly, but woke up to a sound—a low hum, like a refrigerator, but coming from inside the walls. The clock on the nightstand read 3:00 AM.
I sat up, my heart thumping. The hallway outside my door was dark, but I could see a faint glow coming from under it. I slipped out of bed and pressed my ear to the door. The hum was louder there, and underneath it I heard a voice—like a radio tuning in and out, fragments of words, names, and laughter that wasn’t quite human. I wanted to go back to bed, but something made me open the door.
The hallway was lined with old photographs of relatives I’d never met. Their faces were blurred, as if the camera had moved during the exposure. At the far end, near the stairwell, there was a gap in the wallpaper where I could see the wooden slats beneath—and in that gap, a thin line of black smoke was curling out, moving like a snake along the floorboards. It didn’t rise; it just slid toward me, pausing every few inches.
I stepped back, but my foot caught on the rug. I fell, and the smoke stopped. It seemed to hesitate, then it started moving again, faster, and I realized it was following the path of the hallway’s old electrical wiring, which ran along the baseboard. I scrambled to my feet and ran to the bathroom at the other end, slamming the door.
The hum stopped. I heard footsteps in the hallway—slow, heavy, as if someone were wearing boots. A shadow passed under the door, blocking the light. And then a voice, clear as a bell, said in a whisper, ‘We’re not in the walls. We’re in the static.’
I stayed in the bathroom until dawn. When I came out, the hallway was normal. The photographs were crisp. The wallpaper was intact. But there was a faint static crackling from the radio downstairs, even though no one had turned it on.
My grandmother found me at the top of the stairs, shivering. She looked at me, then at the radio, and said, ‘You heard them, didn’t you? They’ve been trying to get out since the power line went up in ’58. They used to be just shadows, but now they’ve learned to ride the airwaves.’ She handed me a pair of old earplugs. ‘Don’t listen at three. That’s when they’re loudest.’
I never went back to that house after that summer. But even now, whenever I hear static on an old radio, or a low hum from a machine, I check the hallway. And sometimes, when the moon is full and the clock shows 3:00, I could swear I see a thin line of black smoke curling under my door, waiting for me to listen.