The Ferrous Visitor

In the autumn of her thirteenth year, Mira moved with her parents to the old Harlow farmhouse, a rambling structure that sat at the edge of a sprawling cranberry bog. The previous owners had left in a hurry, and the house still held their lingering smell of woodsmoke and decayed apples. Mira’s room was in the attic, a converted space with sloping ceilings and a single dormer window that faced the marsh. On her first night, she lay awake, listening to the wind rattle the loose pane, when she noticed a strange hum, a low, pervasive tone that seemed to come from the bog itself. It was not unpleasant, like a distant electrical substation, but it made the fillings in her teeth ache.

Three nights later, the humming grew louder, and Mira saw a light through her window, a faint, coppery glow that pulsed in time with the hum. She crept to the glass and saw, hovering above the reeds, a shape that was neither bird nor drone. It was roughly the size of a bicycle wheel, but perfectly spherical, and its surface was not black but a deep, rusted bronze, mottled like old iron left in the rain. It drifted closer, and Mira felt an inexplicable pull, a yearning to open the window and let it in. Her hand was almost on the latch when she noticed the frost on the glass, even though the room was warm. The cold radiated from the object, and she remembered her grandmother’s warnings about things that came from the water. She yanked her hand back and stumbled to the hall, where she found her mother in her robe, staring out the kitchen window at the same coppery glow.

‘Don’t look at it,’ her mother said, her voice tight. ‘It’s the ferrous visitor. It’s been here before.’ Mira’s mother explained that the Harlow bog had a history of strange lights, and that the previous owner, a crusty old man named Ephraim, had been obsessed with them. He’d built a metal detector that hummed day and night, searching for something in the muck. He’d found it one night, and after that, he was never the same. He’d told Mira’s mother, when they’d come to view the house, ‘That thing is not a ghost. It’s a machine. And it’s lonely.’

Over the following weeks, the ferrous visitor returned every night, its coppery glow growing brighter, its hum more insistent. Mira began to have dreams of a vast, dark chamber beneath the bog, where gears of rusted iron turned in the mire, and a voice, not human, spoke in a language of grinding metal. She woke each morning with rusty smudges on her pillow, as if she’d been touching old pipes in her sleep. Her parents started to argue, her mother wanting to leave, her father insisting they’d just bought the place and couldn’t afford to sell. Mira felt the pull during the day now, too, an urge to walk into the bog and follow the hum. She resisted, but she began to keep her window locked and to wear a small iron cross her grandmother had given her, even though she wasn’t religious.

One evening, a storm rolled in from the coast, and the wind howled like a wounded dog. Mira’s father was away on business, and her mother had taken a sleeping pill, leaving her alone in the attic. The ferrous visitor came closer than ever before, its surface now shimmering with a greenish rust, and it pressed against the glass, making the pane bow inward. Mira could see intricate engravings on its skin, patterns that looked like circuitry, and in its center, a dark lens that seemed to stare into her. She felt the pull stronger than ever, a physical force that made her feet move toward the window. Her hand, as if possessed, reached for the latch, and just as her fingers touched the cold metal, she heard her grandmother’s voice in her head, clear as a bell: ‘The bog takes its own.’

Mira screamed and threw herself back, landing on the floor. The visitor remained outside, but it began to rotate, and from its underside, a thin, needle-like antenna extended and tapped on the glass, once, twice, three times. Then it withdrew and sank back into the bog, leaving only a faint coppery afterglow. The next morning, Mira went down to the bog’s edge, driven by a mixture of curiosity and defiance. The afternoon sun glinted on something half-buried in the peat: a metal box, about the size of a shoebox, covered in the same rusted bronze as the visitor. She pried it open, and inside she found a collection of artifacts that made her blood run cold: a tarnished locket containing a faded photograph of Ephraim, a brass key, and a small notebook written in a spidery hand. The last entry read: ‘It has shown me the void between stars. It says I am not its first. It will not be the last. The bog is only a door.’

Mira closed the box and looked out across the marsh. The humming was faint now, but she knew it would return. She thought of her childhood friend, Liam, who had once told her he’d seen a ‘shadow with a green heart’ in the woods behind his house. She hadn’t believed him then. She believed now. She decided she would not let the ferrous visitor claim her. She would bury the box deep in the backyard, and she would cover the dormer window with a sheet, and she would never, ever listen to the hum alone at night. But as she turned to walk back, she felt a prickle on her neck, and she knew, without looking, that the coppery sphere had risen again, watching her from the reeds. And this time, it was not hovering. It was bobbing, just above the water, in a silent, rhythmic dance, as if it were trying to say something. Mira clutched the box to her chest and ran, not stopping until the kitchen door slammed shut behind her. She never told anyone about the notebook, not even her mother. But she kept it under her mattress, and she would sometimes wake in the middle of the night to find her hand reaching under to touch it, the pull of the metal as strong as the hum from the bog. She knew, with a certainty that chilled her to the bone, that the ferrous visitor had chosen her, and that her story was only beginning.