The Hollow Tap at Number 12

Mara was thirteen, and the world had already taught her to be afraid. But that summer, fear took on a new shape, one that lived in the spare bedroom of her great-aunt’s house on Elm Street. The house was a Victorian relic, painted a dismal gray, with a wraparound porch that creaked underfoot and windows that stared out like vacant eyes. The room she was given had been her cousin’s, a boy who had gone missing two years ago, and the air still held the faint, sweet smell of his cologne. She had chosen to sleep there because her own room, a narrow space at the top of the stairs, was being overtaken by the attic renovations—a dusty, clawing chaos of insulation and old beams. It was the only option, she thought, yet every night she pulled the quilt up to her chin and listened to the house settle, imagining the floorboards groaning under unseen weight.

It began on a Tuesday, at 3:15 AM. Mara was not entirely asleep, drifting in that foggy half-state where thoughts blend with dreams. The first knock was soft, four taps in a lazy rhythm against the windowpane, right by the head of the bed. She froze, her heart starting a steady thump. She told herself it was a branch, though the nearest tree was a good twenty feet from the house. She squeezed her eyes shut, counting breaths until she convinced herself she had imagined it. But two minutes later, it came again—three sharper knocks, as if someone was using a knuckle of bone. This time, a voice followed, muffled by the glass but unmistakable: ‘Mara, open the window.’ It was her cousin’s voice, the missing boy, Lucas, but wrong—thin and hollow, like a voice echoing up from a concrete well. Mara’s blood went cold. She pressed her hands over her ears, but the voice continued, now louder and more insistent, the words slurring together: ‘Let me in, we are here, it’s cold out here.’ The knocking grew heavier, the window rattling in its frame, and the voice deepened into a guttural growl, something monstrous trying to speak. ‘OPEN THE DOOR!’ it bellowed, and then there was a sound like a fist breaking through ice, and a scream that sliced through the night.

Mara bolted upright, her nightgown soaked with sweat. She looked at her brother, Milo, who was asleep in the twin bed by the door, his face slack and peaceful. She whispered his name, then shook him violently. ‘Milo, wake up!’ He stirred, grumbling. She spilled the story in a rush, her words tumbling over each other: the knocks, the voice, the bang, the scream. Milo sat up, rubbing his eyes, and looked at her with a mixture of annoyance and pity. ‘It was a nightmare, Mara. Go back to sleep.’ But she couldn’t. She stayed awake until dawn, the window dark and still, but her mind replaying the voice. It had sounded so real, so desperate and monstrous at once. For the rest of the week, she avoided the spare bedroom during the day, but at night, she felt the pull of it, the window like a mouth waiting to speak.

A week later, on a Sunday, the family gathered for dinner at the house. Mara’s great-aunt, a woman with sharp eyes and a quiet way of knowing, pulled her aside after the meal. She held out a small, tarnished brass key. ‘This was found in Lucas’s room after he went missing,’ she said. ‘It opens the cellar hatch in the backyard. He always kept it locked. I want you to keep it safe.’ Mara took the key, feeling its weight, its coolness. That night, she couldn’t sleep. She lay in the spare bedroom, the key on the nightstand, and at exactly 3:15 AM, the knocking returned. It was gentle at first, a familiar rhythm, but then the voice, now a low, guttural whisper, said her name with a greed that made her skin crawl. ‘Mara, you have the key. Open the door. Let me out.’

This time, Mara got up. She walked as if in a trance, her bare feet cold on the floorboards, down the stairs, through the kitchen, and out the back door. The grass was wet with dew, and the moon cast long shadows. She found the hatch, grass-grown and mossy, and knelt. The key fit perfectly. She turned it with a click that seemed to echo in the silent night. She lifted the heavy door, expecting darkness and damp, but instead she saw a dim, greenish light. A stairway descended into what she had thought was just a root cellar, but the stairs went deeper—much deeper—than any cellar she had known. A voice, now smooth and seductive, floated up. ‘Come down, Mara. We’ve been waiting.’

She descended, her hand on the cold stone wall. At the bottom, she found an earthen chamber lit by a sickly glow. In the center stood a figure—a young man of maybe eighteen, but his eyes were not human; they were pits of darkness. He wore Lucas’s clothes, but his face was a mask of borrowed flesh. He smiled, revealing teeth too many and too sharp. ‘You were supposed to be the door,’ he said, his voice now layered with a chorus of whispers. ‘But now you are the key.’ Mara screamed, but no sound came out. The last thing she saw was the figure reaching for her, and the last thing she felt was the cold of the earth as the hatch door slammed shut above her, plunging her into blackness.

They found her missing the next morning. Her family searched the yard, but the hatch was locked again, and there was no sign of her. A week later, in the spare bedroom, a new girl—her cousin’s friend—stayed overnight. At 3:15 AM, a soft knock came at the window, and a hollow voice said, ‘Let me in. I’m cold.’ And the window rattled, as if something on the other side was trying to open it from within.