The Constant Thrum

The heat in El Paso in late July was a physical presence, a suffocating blanket that clung to every surface. We’d arrived from Veracruz in 1998, a family of seven squeezed into a two-bedroom apartment on the second floor of a faded yellow building, the ‘Casa del Sol,’ which promised sunshine but delivered only the relentless, fading paint. It was a new beginning, my parents said, a step up, even though the air conditioner wheezed and rattled like a dying animal, and the walls were thin enough to hear our neighbors, the Ortegas, arguing about bills and their son’s bad grades.

I was twelve, the youngest, with three older sisters—Marisol, the eldest, who was seventeen and already dreaming of escape; then Isabel, fifteen, with a sharp tongue and a fear of the dark that she tried to hide; and Rosa, thirteen, who was my closest companion in that strange, cramped space. Our uncle Tito, my father’s brother, had come with us too, a taciturn man who spoke little and spent most evenings on the couch, nursing a beer and staring at the television that never quite brought in a clear picture.

From the first night, I noticed a low hum, a constant thrum that seemed to vibrate through the floorboards and into my bones. I thought it was the air conditioner at first, that ancient metal beast chugging in the living room window. But even when it was off, the hum persisted, a faint, persistent note just on the edge of hearing. When I asked my mother about it, she dismissed it as the ‘building’s breath,’ a phrase she used whenever she didn’t want to admit something was wrong.

It was the plants that started it. My mother, a woman who could grow flowers out of concrete, had brought her prized ferns from Veracruz, and placed them in the corners of every room. But soon, the ferns began to move. Not just rustle in a breeze, but twitch, as if they were trying to pull their roots from the pots. At night, lying in my bed, I’d watch the fern on the dresser, its fronds slowly bending toward me, like a hand reaching out, then retreating when I blinked. I told Isabel, but she just laughed, saying it was my imagination. Yet, I caught her one night, staring at the fern in our room with wide eyes, her face pale in the dim light leaking from the hallway.

Then came the carpet stains. The apartment was carpeted in a dull, matted brown that seemed to absorb all light. In the mornings, I’d discover new dark patches on the floor, not like water stains but deeper, more like shadows that had soaked into the fibers. They’d appear in the shape of handprints, sometimes spread wide as if someone had pressed their palms down, other times like the imprint of a curled-up body. When I’d try to scrub them away, they’d fade slightly, but never fully disappear, and the next day they’d be there again, sometimes in different places.

Our uncle Tito was the first to see the figure. He came stumbling out of the bathroom one night, pale and shaking, muttering about a silhouette in the mirror. He refused to use that bathroom again, and from then on, he’d walk the extra blocks to the gas station on the corner if he needed to go at night. The rest of us tried to avoid the bathroom as well, using it only when necessary, and always with the door ajar and the lights blazing.

I began to sleep with my covers over my head, not so much to hide but to muffle the hum, which grew louder at night. I’d lie there, listening to the sounds of the building: the scaffolding outside creaking, the wind rattling the cheap window frames, and beneath it all, that thrum, like a heartbeat, but not ours. It was as if the building itself was alive, a sleeping beast whose subtle sounds we were just beginning to notice.

One night, I woke to find Rosa standing at the foot of my bed, her eyes open but unseeing, her mouth moving as if she were speaking but no sound coming out. She turned slowly, walked to the closet, and opened it. Standing there, silhouetted against the darkness inside, was a woman—tall, still, her dress a blur of gray. She stood for a moment, then faded, and Rosa slumped to the floor. She woke up the next morning with no memory of the event, but from that night on, she refused to enter the closet, and her laughter grew quieter.

Things escalated the week my father left for a job site in Odessa. Marisol was the one who cracked. She’d become obsessed with a spot on the ceiling in the living room, a discoloration that seemed to swirl and shift if you stared at it too long. One evening, as we were watching TV, she pointed at the spot and screamed, ‘It’s watching us! It’s always watching!’ She ran out of the apartment, down the stairs, and into the night. We found her hours later at a bus stop, her face stained with tears, unable to explain why she ran.

My mother tried to hold us together. She burned sage, she whispered prayers, she rearranged the furniture. But the hum only grew stronger, and the shadows in our peripheral vision became more persistent. We’d all see them—the flicker of movement at the edge of our sight, the sensation of being watched. I’d catch glimpses of that same woman in the hallway, her form like a smudge on a photograph, always at the edge of my vision, never quite turning to face me.

It was the night of the candle that broke everything. We’d lost power during an intense storm, and my mother lit candles, placing them around the living room. As we sat in the dim, flickering light, the shadows on the walls began to move independently of the flames. They crept along the wallpaper, reaching, merging, forming shapes that were almost human. The ferns in the corner writhed, their leaves scraping against the walls like fingers on a blackboard. The hum intensified, a low drone vibrating in our chests, until I felt my teeth chatter.

Then, one by one, the candles went out. Not from wind, but as if snuffed by invisible mouths. We were plunged into darkness, and the only sound was the rain against the windows and our ragged breathing. Then, from the kitchen, came a crash—the sound of every dish in the cupboard shattering on the floor. In the chaos, I felt a cold hand on my shoulder, a grip firm and unyielding, and I screamed.

When the power returned, bright and stark, the apartment was transformed. The ferns were dead, their leaves shriveled and brown. The carpet was covered in a thousand shards of glass, but also in those dark handprints, now covering every inch of the floor like a tide of shadow. My family stood in the middle of the living room, shaking, holding each other, all of us looking at the same thing: the ceiling spot had grown, a dark chasm in the plaster that seemed to stare back at us.

We left the Casa del Sol the very next morning. My father cut his contract short, and we moved to a small house on the outskirts of town, a place with no carpet, no ferns, and, most importantly, no hum. But sometimes, when the night is too quiet, I’ll press my ear to the new floorboards and listen. There it is—faint, but unmistakable—that constant thrum, as if it followed us, waiting for the moment we let our guard down.

And in the garden of our new house, my mother tried to plant flowers, but they never grow tall. They always seem to bend toward the house, their stalks curved as if bowing to something that watches from the shadowed windows. Even now, I keep the curtains drawn, and I never sleep without a light on, because I know that the thrum isn’t just in the walls—it’s in the blood, waiting to be recognized.

That’s why I’m writing this. Not for validation, but to leave a record. If you ever find yourself in a place that hums, that breathes, that is more than just wood and plaster, trust your instincts. Get out. Because the Casa del Sol wasn’t the first dwelling built on that land, and I suspect it wasn’t the last. They say the city was built on a cemetery, but that’s too neat, too cliché. What I believe is this: that the ground itself remembers, and the building was just a conduit. And the hum? It’s the sound of something beneath the earth, something that never stops, and it is always, always listening.