The Threshold You Lay to Keep Them Out Might Be the One That Locks You In

Constance’s voice on the phone was wrong. Too low. Too careful, like she was afraid something might overhear.

“That dorm, Evelyn. It used to be a chapel. The doorframes are too low. Unclean things can just step right over.” A pause. The faint clink of medals bumping together on the other end. “I mailed you something. Lay it across the doorway. Make a threshold. Seal it shut — no gaps. They… they can’t lift their feet.”

The line went dead before I could ask who they were.

The package arrived at dusk. A brown paper box with no return address. Inside: a small bag of coarse grey sea salt, and seven tarnished Saint Benedict medals so rusted they looked ready to snap.

No note. No blessing.

Sophia leaned down from the top bunk, chewing gum, watching me kneel at the door and tip the salt and medals into a line along the crack. Then I covered it with transparent packing tape — layer after layer after layer — pressing it flat, crushing the little metal discs into ugly, jagged ridges beneath the plastic. It looked like a badly healed scar.

“What is that, some kind of voodoo thing?” Sophia blew a bubble. It popped.

I didn’t answer. I bit off the last strip of tape and ran my thumbnail along the edge, over and over, sealing it flush with the floor. The salt under the tape caught the light from the hallway, a thin line of dirty snow trapped under glass.

After lights-out, Sophia stayed on her phone, blue light flickering across her face. I turned to the wall and tried to convince myself that the raised ridge along the door meant safety. Eventually, exhaustion came down like lukewarm bathwater.

I woke to the ache in my bladder.

The room was dead silent. Sophia’s breathing was steady. I was about to throw off the covers when I heard it — the door opening. No footsteps. Just the faint, brittle crackle of salt grains crushed beneath tape.

A man slipped inside, sideways. Dark blue coveralls. Bare feet. Hair plastered wet to his forehead, as he’d just climbed out of the lake.

He didn’t look at me. His head moved toward Sophia’s bunk. He stopped at the foot of the bed and tilted his head back at a broken angle, staring up. Then he raised a hand and started to climb. His joints bent wrong. Silent. A pale spider.

I lay frozen, my eyeballs the only part of me still allowed to move. I watched his wet back disappear into the shadow above. Then came the sound — water. Thick, glutinous water, being stirred, being sucked at, dripping wetly from Sophia’s mattress into my ears.

I dug my nails into my palms. Four burning crescent moons. I closed my eyes and counted heartbeats until I thought my bladder would rupture.

Morning shattered against Sophia’s alarm. Sunlight blazed. Everything looked bleached clean — white sheets, locked door.

I practically fell off the top bunk. I grabbed Sophia as she headed out to brush her teeth and dragged her to the door.

“Who did you have in here last night?” My voice scraped like sandpaper.

Sophia winced. “Are you insane, Evelyn? I slept alone. The door was locked!”

I let go and crouched down, pointing at the threshold I’d built with my own hands.

The tape was unbroken.

But on its surface, stamped across the salt and the bumps of the medals, was a footprint. Grey. Bare. Five toes splayed wide, pressing forward, aimed straight at Sophia’s bed. Wet lake-bottom mud still clung to the edges, reeking.

Sophia’s gum dropped from her mouth. She stared at the print, all the color draining from her face until only her lips moved, trembling.

“Check… check the cameras.”

Her voice snapped like a loose guitar string.

The campus police office. Blue-tinted screens.

The officer chewed a sandwich and scrolled backward through the feed. 2:47 a.m. The camera showed our door, firmly shut — then, without any visible cause, it swung inward, opening a wide gap. It stayed open for nine full seconds, then glided shut again, smooth and silent. Like someone invisible had stepped through, sideways.

The hallway was empty. Not even a speck of dust moved.

“Sensor’s busted,” the officer muttered and went back to his phone.

Sophia and I stood rooted. I could hear her teeth chattering — click-click-click — like a broken watch cog.

But I couldn’t stop picturing the man’s entrance. The way he’d turned his body sideways. Sidestepping. Or — steering around something.

Steering around the threshold I hadn’t put down yet.

A needle of ice pushed up from my tailbone. I jerked my head up and met Sophia’s eyes. She’d figured it out, too.

If he was already inside last night… then what was scratching at the door the entire time?

That night, neither of us turned off the lights.

We sat facing the door, facing the thin seam sealed with salt and medals at its base.

Lights-out. The world drowned in black.

Then the scratching began.

Not knocking. Scratching. Something hard — fingernails, or splintered bone — dragging back and forth along the crack beneath the door. Scrrrrrritch. Scrrrrrritch. Patient. Tireless. Inhumanly methodical.

It really couldn’t lift its feet. But it was trying, inch by inch, to dig its way in through the smallest possible gap.

Sophia curled into the head of her bed, stuffing her blanket into her mouth to muffle the sound of her crying. She sounded like someone drowning.

I didn’t answer the question she’d asked earlier. I couldn’t take my eyes off the door. The taste of blood from my own bitten lip filled my mouth. My gaze pulled upward, against my will, to the corner where wall met ceiling — the place the grey footprint led. The patch of darkness was too thick to see into.

Something up there was dripping. Slowly. Silently.

One drop. Onto Sophia’s pillow.

Another drop.

My phone rang.

Constance’s name lit up the screen.

I pressed answer. Before I could speak, her voice poured out — not her voice. Water. The churning, muddy water of the lake. And Constance’s words, submerged, barely human, a gargled scream:

“I told you to seal the threshold, Evelyn… Why didn’t you seal it…”