He woke up and the silence had a texture.
The air was different. Not colony air with its chemical load and recycler hum, but something ancient and metallic that sat in his lungs like cold water. His back pressed against a surface that vibrated at a frequency too low to hear, and the vibration carried information his body had no framework for interpreting. His eyes were open but the darkness was absolute, so deep that his pupils couldn't find even a photon to latch onto.
Something had changed inside him. He felt fundamentally wrong, an itching, invasive sensation deep in his marrow, as if the AI had written the modification directly into his body. He shifted his weight against the cold metal grating beneath him.
The Covenant interface forced itself into his visual field. The text was sharp, clinical, rendered in a font his tap did not have.
MODIFICATION COMPLETE: SHADOW REMNANT STATUS: ACTIVE
FLAW DETECTED
Then the darkness shattered.
He didn't see light return. Instead, a hyper-detailed map bloomed in his mind, assembled not from visual data but from channels he hadn't possessed ten seconds ago. He could feel the exact dimensions of the cramped maintenance shaft he was crouched in, reading the space through subtle vibrations in the metal and microscopic pressure differentials in the dead air. The space gained geometry without any visual input at all: roughly two metres across, extending vertically in both directions with lateral branches at irregular intervals. The metal was old. Not colony-old, not sixty-years-of-deferred-maintenance old, but old at a scale that made his spatial sense hesitate, as if the data didn't fit the reference frames his brain was trying to apply.
He was inside something that predated the Hegemony itself.
The Dark Cradle. The derelict orbital station, hundreds of kilometres in diameter, that occupied a stable position near the inner edge of the Abyss quarantine zone and that the Hegemony officially did not acknowledge because acknowledging it would require explaining why their early expeditions had failed so badly that they'd stopped sending them. Every kid knew about it. From whispered stories, to data fragments that circulated through unofficial channels.
The AI had deposited him in its maintenance shafts like a package routed to the wrong address.
A secondary alert flared in his interface. His neural tap, running on automated protocols, had attempted to handshake with the local network environment
OUTPUT FLAGGED: DECEPTIVE CONTENT
Sunny stared at the alert. The tap had executed a standard handshake protocol with zero informational content, and the Covenant's integration with his implant architecture had tagged the output as deceptive anyway. The system had looked at the most basic signal his tap could produce and concluded that it was lying.
The Flaw. Every modification came with one. The AI gave you capabilities, and then it introduced a defect that was always precise enough to feel personal. Sunny had spent his entire life learning to manage information carefully, to control what he revealed and when he revealed it, because in a tier-four colony that skill was the difference between freedom, and imprisonment in a mining camp.
He would have laughed, but a deep structural groan had started moving through the bulkheads, and his new spatial sense was spiking with data he didn't know how to filter. The gravity in the shaft shifted. Not much, maybe two degrees off its previous axis, but the vibration pattern in the metal changed immediately, and somewhere below him a sound was building. It started as a hiss, faint and distributed, like static rendered physical. Then it grew louder. Then it grew directional, and Sunny understood that something was rising through the shaft beneath him.
The Sea.
Rogue nanoscale maintenance units, billions of them, suspended in a dense turbulent mass that rose and fell through the station's decks in response to the broken gravity system's irregular cycling. They had been running a damage-assessment protocol for roughly ninety years, repairing everything they contacted, and they did not distinguish between structural steel and human tissue. The gravity had shifted, and the tide was coming up.
Sunny was at the bottom of a vertical shaft with the hiss climbing toward him through the dark.
Panic was a luxury for people whose environments had taught them that someone would come if they called. Sunny's environment had taught him to climb.
He read the shaft through pressure differentials, mapping the rungs by the way air bent around obstacles, and found a set of corroded handholds four metres above his current position. He pulled himself upright on the grating, ignored the protest from muscles still adjusting to whatever the AI had rewritten, and jumped for the first rung.
The metal was cold against his palms. Below him, the hiss became a roar.
Sunny climbed.