- 04:12 STATION TIME. The wall panel near Airlock 9 glowed with a soft, amber flicker. It read 04:13. Elara tapped the glass, expecting the synchronization protocol to reset the digit, but the time remained advanced by exactly sixty seconds. Along the floor, a jagged seam of white crystals bloomed in the weld-line of the bulkhead. She touched the frost. It was not ice; it was a calcified particulate, bitter and warm to the touch.
She looked at her own wrist-comp. 04:12:45. The station’s internal chronometer was governed by a cesium-fountain clock that had not deviated by more than a nanosecond in three years. She checked the diagnostic overlay. The habitat’s core was humming with the usual, rhythmic vibration of the scrubbers, but the air density in Sector 4 had dropped by 0.2 percent.
She walked the perimeter, her boots clicking against the deck plating. The corridor felt narrower than the schematics indicated. She reached the service alcove—a space that, according to the blueprints, was welded shut during the last station upgrade to provide extra shielding against solar flare activity. The lock was disengaged. It hummed with a low, electromagnetic drag.
- The alcove smelled of ozone and damp wool. Inside, the space was cramped, lined with conduits and auxiliary power cables that pulse-throbbed with an irregular rhythm. In the center stood a pressure suit. It was child-sized, a model discarded during the station’s initial construction cycle three decades ago. It stood upright, propped against a stack of discarded filtration units. The fabric of the suit was damp, steaming faintly in the frigid air of the alcove.
Elara stepped closer, her hand hovering over her stun-baton. She didn't draw it. The suit was warm—the exterior plating radiated heat that defied the station's ambient temperature control.
A voice emanated from the suit’s internal comms speaker, cutting through the silence of the alcove with a static-heavy crackle. It was a loop, a recording from an old emergency frequency that hadn't been active since the station's second year of operation.
"Correction to the manifest. Oxygen levels in the lower secondary are at twelve percent. We have a stowaway in the ventilation ducts. Repeat: oxygen at twelve percent. The air is going thin."
Elara leaned in, pressing her ear to the chest plate. Through the layers of Kevlar and synthetic thermal shielding, she heard a sound. It wasn't the hum of the suit’s life-support. It was a heartbeat—irregular, fast, and muffled by the heavy casing.
- 04:45 STATION TIME. She sat on the deck, watching the wall panel. It now read 04:46. The discrepancy was growing; the station was folding, or perhaps it was just the child in the suit pulling the reality of the habitat toward its own private orbit. The station handover was at 06:00. The transition team from the Earth-orbital conglomerate would arrive with their automated audit drones. If they found a heat signature in a sealed zone, they would initiate a total atmospheric purge to ensure no contaminants remained.
She thought of the bureaucracy. A purge was the most efficient way to deal with an unlisted presence. It would take four minutes to vent the oxygen and two more to flush the system with inert nitrogen. The company considered a human life an acceptable maintenance cost, provided it saved the integrity of the station's hardware.
She stood up and paced the narrow width of the alcove. Her diagnostic tools were silent. Whatever was inside the suit was shielded by a lead-lined casing she hadn't bothered to scan. She looked at the door. If she reported it, the audit would be delayed. The handover would be voided. She would lose her job, her certification, and likely her access to any other station in the sector. If she didn't report it, the audit would commence on schedule, and the purge would kill whatever was shivering inside the suit.
"Who are you?" she asked, her voice sounding thin in the cramped space.
The voice in the suit didn't respond to her. It continued its loop, the static shifting in pitch. "Oxygen levels in the lower secondary are at twelve percent."
- She picked up a pry-bar from the wall rack. The seams of the suit were fastened with manual hydraulic clips, rusted into place. She applied pressure, the metal groaning as it yielded. The first clip popped, a sharp, metallic sound that echoed down the length of the silent corridor. The heat radiating from the suit intensified, a sudden spike that made the room shimmer.
Inside the helmet, the faceplate was fogged with thick condensation. Elara wiped it clean with her sleeve. There was no child behind the glass. There was only a collection of sensory arrays, wires, and a small, pulsing bio-synthetic heart housed in a glass canister, wired directly into the suit’s interface. It was a surrogate—a device designed to mimic the vitals of a human to test the sensitivity of the station’s air-scrubbing sensors.
It had been left behind. Forgotten in the dark for thirty years, it had continued to cycle, its cooling systems drawing power from the alcove’s conduits, its internal programming looping a tragedy it had been built to observe.
- 05:30 STATION TIME. She watched the wall panel. 05:31. The frost on the bulkhead was receding, melting back into water that pooled on the deck. She didn't report it. She reset the lock on the alcove, manual override fully engaged to prevent any accidental opening by the audit team.
She walked back to her station console. She updated the maintenance log for Sector 4, noting a minor sensor calibration error that had been resolved. She checked the box for 'System Optimization Completed.'
At 06:00, the docking clamps engaged with a heavy, final shudder that rattled the teeth in her jaw. The audit drones would begin their sweep in T-minus ten minutes. She watched the monitors as the white light of the docking bay flooded the screens, the clinical, sterile glare of the incoming crew. She reached out and toggled the power to the local ventilation system in the alcove, forcing a loop of ambient white noise into the internal comms to mask the faint, rhythmic heartbeat of the ghost in the machine.
She looked at her watch. 06:01. The station was finally synchronized. She stood, smoothed her uniform, and walked toward the airlock to greet the team. On the wall behind her, the panel flickered, then settled into a steady, unchanging glow.