Marcus spent Day 6 becoming a scavenger in practice, not spirit. He'd been scraping fungal paste from walls and drinking from cracked water mains since Day 1, but scraping wasn't scavenging. Scavenging meant finding something other people wanted, something that could be traded, and trading required a kind of preparation he hadn't attempted yet. He returned to the junction room where he'd observed the three scavengers on Day 5. The conduit sections they hadn't touched were deeper in the infrastructure, where the floor made access inadvisable. The Lens put the collapse risk at fourteen percent for a seventy-kilogram adult. Optimistic for Marcus's body weight, but acceptable for someone who tested each surface before committing to it.
He climbed three meters down into a gap between layers, fingers finding purchase on corroded rebar while the Lens painted wireframe over the infrastructure and tracked stress on each handhold. The floor below was a tangle of conduit runs and cable bundles thicker than his wrist. Centuries of collapse had packed the debris into a salvage bed. Nobody had touched it, because nobody had been willing to risk the descent.
The wire in the deeper sections was thicker gauge and older, and the Lens tagged it as a pre-Noctis alloy with higher conductivity than the Imperial pattern the scavengers had been stripping above. They'd left the good material alone, preferring access over quality. The difference was visible now, after days of handling salvage: the pre-Noctis stock had a warmer color, a finer grain, and it bent without the brittleness of the later alloy. Better material meant better trade value, and trade value meant leverage in a negotiation he hadn't conducted yet.
He worked the same way he'd approach any extraction task: most accessible sections first, effort-to-value ratio for each, highest-value wire stripped before anything else in case he needed to leave fast. His hands had toughened over the days, blisters hardened into rough patches that gripped metal without complaint. The forearm infection had faded to a tight scar, tissue knitting faster than Earth biology would suggest. The tremor of malnutrition had receded to a vibration in his fingertips, present only when he held them still.
He stripped two kilograms of wire, coiled it tight, and climbed back up with hands that ached from exertion but no longer shook from weakness. The Foraging skill ticked to Novice 4 from the novel resource acquisition, the System recognizing deeper salvage as distinct from wall-scraping and tunnel-picking. He spent the rest of the afternoon watching a water collection point a hundred meters south of the junction room. Three pipes converged there, and condensation pooled in a basin carved by years of dripping water against softening ferrocrete. He'd identified the spot on Day 5 by foot traffic: marks in the dust, wear on the grating that indicated regular passage. Someone visited often enough to leave a trail even his untrained eyes could read.
On Day 7, he gathered his salvage and went to meet them.
He arrived early that morning and settled into a concealment position with clear sight lines on the basin and both approach corridors. The wire sat in a coil at his feet, visible, because concealing trade goods would read as ambush or theft, and neither was the first impression he wanted to make.
His Stealth skill kept his breathing shallow and his position quiet against the wall, but his pulse kicked hard against ribs that were too prominent. No amount of preparation changed the fact confronting him. He was about to speak to another person for the first time in a week, in a body that wasn't his, in a language he'd never spoken aloud.
She arrived at what the System estimated was oh-nine-hundred.
Old by underhive standards, fifty-five or sixty years, small and wiry with the musculature of someone who had carried loads through tunnels for decades. Her skin was the brown common to residents who'd never seen sunlight, her hair cropped close to the skull. She carried a canvas sack over one shoulder and a knife on her belt. The blade's maintenance was obvious even without the Lens, the handle worn smooth by years of grip.
[ANALYSIS: Female, approx. 55-60 standard years. Health: FAIR (chronic joint inflammation, healed burns left hand, nutritional baseline consistent with sustained underhive subsistence). Threat Level: LOW. Visible weapons: utility knife (belt, well-maintained). Physical condition: mobile but limited endurance. Stress indicators: LOW-MODERATE (habitual caution, not acute fear). Assessment: experienced underhive resident, likely independent trader or scavenger. Behavioral markers suggest long-term survival adaptation.]
She went to the basin and knelt, filling containers from her sack with unhurried movements that belonged to someone who had done this hundreds of times and no longer thought about it. She did not check sight lines, which meant she either felt safe here or had decided long ago that checking wouldn't help.
Marcus stood up, and the woman froze. Her hand drifted to her belt, not to the knife but near it, a compromise between readiness and non-aggression that looked like muscle memory. Her eyes found him in the dim light and tracked from his face to his hands to the wire coil at his feet, all in the time it took him to draw one breath.
"Trade," Marcus said. His first word spoken aloud to another person in this world, and it came out rougher than he expected, his voice cracked from disuse and the rasp of gas exposure. The Low Gothic sat strange in his mouth, consonants heavier than English, vowels flatter. The System had been processing the language since activation, building a model from overheard speech and text. The Lens confirmed his pronunciation was passable, stiff but functional.
"Trade what," the woman said, the words arriving not as a question but as a demand in the underhive dialect that dropped articles and compressed sentences to their minimum length.
Marcus gestured to the coil at his feet. "Wire. Pre-Noctis alloy. High conductivity. Two kilograms."
Her eyes narrowed and her posture shifted from guarded to assessing, her body still but her weight redistributing forward in a lean the Lens tracked as decreased stress and increased focus.
"You talk strange," she said, and the three words carried the weight of a threat assessment, her tone flat, cataloguing.
"I'm new," Marcus replied, hands open at his sides in the gesture of non-threat that the underhive probably interpreted as either honesty or stupidity.
"New from where."
"Above," Marcus said, and the word hung between them like something dropped, implying the Warrens without committing to an origin that could be verified or disproven. He'd rehearsed the deflection the day before, testing it until it sounded natural, but saying it to a person was different from saying it to ferrocrete walls. This was his first lie in this world, spoken to the first person who had seen something worth evaluating. The ease of it settled into his chest like a stone he would carry for a long time.
Maren's gaze held on him two seconds longer than the conversation required. The Lens flagged it as elevated scrutiny but could not decode it. Then something in her expression shifted, not acceptance but a decision to let it pass, the triage of a woman who had spent sixty years deciding which questions were worth the cost of answers.
"Above," she repeated, flat and toneless, as though filing the word in a category she had assigned to it.
Then she crossed to the wire, picked up the coil, and tested it between her fingers. She assessed materials for a living, and it showed. She bent a section, examined the cross-section where it broke, rubbed the exposed surface with her thumb. Her expression gave nothing away, but her weight shifted forward half a centimeter, the lean of someone whose interest had outpaced her negotiating discipline.
"This is good wire," she said, in the tone of someone about to explain why it wasn't worth what he thought. Marcus had encountered the tactic in a hundred conference rooms on Earth: acknowledge the product, then lowball. The context was different, the stakes were lethal instead of quarterly, but the architecture was the same.
"I know what it's worth," he said, and matched her tone with a steadiness he didn't feel.
"Scavved from the deep junction, then?" She tilted her head. "The one Tork's crew works?"
Marcus said nothing, and the woman's mouth thinned into a line that could have been approval or annoyance, the ambiguity itself a kind of communication. "Tork don't own the deeps. Just thinks he does." She set the coil on the basin's edge. "What do you want for it?"
"Food, a filtration tablet if you have one, and information." He kept the list short, each item weighted the same so she couldn't identify which mattered most to him.
"Information about what," she said, the question stripped of its question mark by decades of underhive habit.
"Where the nearest stable settlement is, who controls what territory, and what to avoid between here and there."
She looked at him with an expression the Lens couldn't classify. Marcus could only call it complicated, something between amusement and pity layered with the contempt that old survivors saved for newcomers who hadn't yet paid tuition.
"Information's not free," she said. He met her gaze across the basin. "Neither is pre-Noctis alloy." The symmetry satisfied something in her assessment of him, and her posture shifted a fraction toward business.
Her name was Maren, and the underhive called her profession circuit trading: a lone operator who moved between fixed points on a route, trading goods and carrying messages for a fee. Not affiliated with any gang, which she described as "too old to be useful and too careful to be worth robbing," though the Lens flagged that self-assessment as half-truthful. Sixty years in the underhive, surviving by being valuable to everyone and threatening to no one. A strategy that demanded intelligence the Lens could detect but not quantify.
Maren set the wire coil on the basin's edge and opened her sack, pulling items out by feel. Three blocks wrapped in waxed cloth appeared first, followed by a chemical disc in a foil pouch, then a block of something pale and chalky that she set apart, like a category of its own.
"Protein rations. Three days' worth if you don't eat stupid." She tapped the wrapped blocks. "Filtration tablet, good for twenty liters, maybe more if the source is clean." She tapped the foil pouch. "And grind." She nodded at the chalky block.
"What's the grind cost?"
"Nothing. Throwing it in." She said it the way someone might describe adding a napkin to a meal, the gesture stripped of generosity and reframed as standard practice. "Most runners chew it on long hauls. Suppresses hunger, sharpens focus. Four, five hours of clarity before the shakes come."
Marcus looked at the block. The Lens painted a metabolic overlay across his vision, liver function flagged in amber, toxicity from the gas pocket and six days of underhive air sitting at a threshold the System classified as manageable but deteriorating. The stimulant's profile scrolled past: alkaloid compounds, adrenal triggers, hepatic load projections that turned the amber to red.
"I'll pass on the grind," he said.
Maren's eyes narrowed a fraction. Most underhivers would have taken anything free, because free was a word that barely existed down here. His refusal was a data point she was filing alongside his accent and his wire and his one-word origin story.
"Suit yourself." She pushed the grind back into her sack without comment. "That leaves protein and the tablet for two kilos of pre-Noctis copper. Fair?"
It was more than fair. The Lens had no baseline for underhive exchange rates, but the wire's value against what she offered suggested she was paying a premium. Marcus suspected she knew it. The copper was worth more to her downstream contacts than three days of protein was worth to her inventory. She was buying margin, not wire, and recognizing that calculation was the closest thing to professional respect he'd felt since waking up in this body.
"Fair," he said.
Maren coiled the wire into her sack with tight loops, her hands performing a sequence so rehearsed it had become reflex. She didn't like holding goods in the open any longer than the transaction required.
"You know your materials," she said, not looking up from the coiling. "Most scavvers bring me standard-grade and call it premium. You brought the real thing and priced it honest." She cinched the sack. "That's either smart or stupid. Haven't decided which."
"I'll let you know when I figure it out," Marcus said, and something at the corner of her mouth twitched, the closest thing to amusement her face seemed willing to permit.
The information came as they traded, Maren delivering it in the clipped dialect that Marcus was beginning to parse as its own grammar instead of broken speech.
"South, two hours walking, you hit Ashborn territory. They take workers. You contribute, you eat, you sleep under a ceiling someone maintains. You don't contribute, you don't stay." She paused. "They're rough but they're fair, which in the underhive means they won't kill you for no reason."
[Skill Unlocked: Underhive Lore — Novice (1)]
[Activity recognized: acquisition of culturally specific knowledge through social interaction.]
"East," Maren continued, "is the Red Sprawl. Crimson Reavers. You don't go east. You don't trade east. You don't look east if you can help it." She glanced at him. "Their boss is a man named Skar. Big, mean, thinks he's clever. He's not wrong about the last part. They take what they want and they kill what they can't use. A boy your size with no marks and no crew is exactly what they can't use."
[Skill Unlocked: Negotiation — Novice (1)]
[Activity recognized: successful negotiation and information acquisition through social exchange.]
Marcus layered the information over the Lens's assessments the way he'd once layered metrics over dashboards on Earth. The Ashborn to the south: organized, a settlement with rules and hierarchy. The Reavers to the east: predatory, a threat to route around, not confront. Two data points that transformed "local power structures" from abstraction to terrain he could navigate, complete with boundaries and principles he could model.
"What about north?" he asked, and she shrugged one thin shoulder. "Scavenger territory. No one owns it, everyone works it. You can survive there if you're careful and don't piss anyone off, but there's no structure, no water points you can count on, and no one watching your back."
"And below?"
Maren's expression flattened into something hard and final, the first reaction she'd shown that carried no ambiguity whatsoever. "Below is the Sump, and you don't go below."
"I know," Marcus said. "I've met it."
The distance she maintained shrank by half a step, and the hand near her knife dropped to her side. Not trust, not yet, but recognition that he had been below and come back, and in the underhive's calculus of credibility that was worth more than salvaged wire or a clever answer.
"You survived a gas pocket," she said, the words flat with certainty.
"Barely," Marcus said, and the admission cost him nothing because it was the first true thing he'd offered without calculation.
She held his gaze a moment longer than the transaction required. "Then you know more than most newcomers already. The Sump breathes, and some days the breath comes up higher than others. Old-timers can smell the shift before the air goes bad. You can't yet." She picked up her sack. "Learn fast or die slow. That's the underhive's only lesson."
She turned to leave, then stopped and looked back over her shoulder. "Your accent. It's not Warren. It's not anywhere I've heard, and I've been walking these tunnels for forty years." Her eyes held his with an intensity the Lens measured but that landed in his chest. "You want my advice? Fix that before someone less friendly than me notices."
Then she was gone, her footsteps fading into the corridor noise within thirty seconds, swallowed by the dark as if she had never been there. Marcus listened until the silence settled back into its baseline: the industrial drone, the drip of the basin, the four-second rhythm of the ventilation cycle. Breath pushing through tunnels that had been breathing longer than the Imperium had been dying.
He sat down against the corridor wall and let the adrenaline bleed out. His hands shook, not from malnutrition this time but from fifteen minutes of performing normality. Tone, expression, body language, subtext, the hum of deception beneath every word. More cognitive load than any debugging session he could remember. The gas pocket had only tried to kill his body. Maren had made his brain work for every second of contact.
He ate one of the protein blocks, biting through the surface into an absence of flavor that his stomach accepted with more gratitude than his tongue could muster. The Lens tracked his nutrition climbing: twenty-eight percent, twenty-nine, the line curving upward for the first time with momentum instead of the crawl of fungal paste.
Three days of food, a filtration tablet, and a map that now had names on it where before there had been only territory and threat gradients.
He turned Maren's warning over the way he would examine a failed unit test, looking for the root cause beneath the surface error. His accent. The System had optimized his Low Gothic pronunciation, but pronunciation was not accent, and accent was not idiom. The gap between correct speech and authentic speech was the kind that got a man killed. He spoke like someone who had learned the language from a textbook that didn't exist, because in a sense he had. The System had built his competence from environmental data, not years of immersion. The result was speech that was grammatically sound and culturally hollow.
He needed time around people, absorbing the cadence and the slang, the dropped consonants and compressed grammar that Maren wielded like a native instrument. He needed to sound like he belonged. In the Imperium, people who didn't belong attracted those whose job was to make them disappear. Not the Inquisition, not this deep in the underhive, but the principle held at every level. The gang enforcer who caught an odd vowel and decided to press. The scavenger who wondered why your vocabulary didn't match your claimed origin. The guard whose instinct fired before his mind could articulate why.
Language was camouflage. Marcus had been treating communication as a delivery mechanism for information. Maren had demonstrated that it was also a performance, and the audience was always watching.
[Economics skill seeding: observed trade dynamics. Underhive economic structure: barter-based, water-indexed, reputation-dependent. No formal currency. Value determined by scarcity, utility, and social context. Note: parallels to pre-monetary exchange economies observed in historical datasets.]
He pocketed the filtration tablet, sealed the remaining food in a strip of cloth torn from his shirt lining, and started back toward his shelter. The mixture of exhaustion and purpose that settled over him was the closest thing to optimism the underhive allowed.
Twelve days of fungal food in the gallery, three days of protein rations in his pocket, and a destination that required him to arrive with something more compelling than desperation. The Ashborn took workers. They were rough but fair.
Marcus needed to make sure he arrived with a reason to be kept alive.
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