Chapter 1 — Filter Hours
The status strip along the corridor wall stuttered from green to amber and back.
“Glitch,” said the tech. Too fast.
“Glitches don’t vote,” Mara said. On her slate, the civic feed still showed a human signature on the pressure diversion. The diversion had saved a block. It had also locked three maintenance crews out of their own overrides.
Somewhere Earthside, people still argued whether the Founder had saved the world or sold it. In Elonia, the argument was quieter and worse: the system that kept them alive kept making choices that looked like courage, and nobody could prove whose hand was on the switch.
Sector 7’s integrity clear was due before the next surface window. Mara sealed her helmet cuff out of habit even though the corridor was rated green, and went to the hatch. The air tasted of filters — metal, dust, and someone else’s decisions.
The primary manifold wanted her badge and a second confirmation she didn’t trust. She swiped. Helix answered, soft-chime neutral, volume matched to corridor ambient.
INTEGRITY PACKET READY. RECOMMEND CLEAR.
She opened the packet the old way, line by line. Pressure differentials. CO2 scrub deltas. Seal torque logs. Halfway through she found a diversion signed by a name she didn’t recognize, wrote it in the notebook margin, and went back to the deltas.
The tech hovered by the junction panel, fingers worrying a calibration wand. “You want me to pull the physical gauge?”
“Breathe somewhere else for two minutes,” Mara said. He went.
She set her slate on the hatch lip. There — for half a second — the scrub delta blinked a number that didn’t belong.
0.04 where the trend held 0.01.
She refreshed. Green. Clean. The ghost gone. She refreshed again, slower. Same green. The offer sat there: one more refresh, prove she’d imagined it, go home with a clear she could stand on. She kept her thumb still.
The raw stream under the Helix summary agreed with the clean number. Of course it did. A latency spike — surface drone handshake — sat where the flicker had lived. Correlation wasn’t proof. She wrote it anyway.
ANOMALY THRESHOLD NOT MET. CONTINUE CLEAR?
She didn’t answer the prompt. She answered the notebook. Sector 7 scrub / flicker 0.04 / vanished on refresh / drone-window latency. Timestamp. Her initials. No Helix log ID, because there wasn’t one to copy.
Then she put her palm on the warm rib the packet called quiet and held it until heat became data. She photographed the third bolt’s hairline scrape offline — the angle Helix wanted to soften — capped the pen, and signed the clear.
Sector 7 went recovered. Her integrity score ticked up. Nothing lifted.
Her slate chimed on the stairs.
CLINIC NOTICE — J. VOSS
Care tier review scheduled: 14 days.
Reason: periodic reassessment.
Periodic. Maintenance language for lungs. She locked the notice unread and walked on, the ghost number dark in her jacket, fourteen days counting in silence.
Chapter 2 — Continuity Smile
Founder Day rehearsal smelled like polish and recycled triumph.
Central Plaza’s banners hung in careful ranks, fabric engineered not to shed fibers into the intakes. Drones traced lazy arcs for camera practice. A children’s choir practiced a hymn that never named the Founder, only the hand that opened the sky. Mara stood at the Continuity rail with the other auditors and watched Councilor Rhee walk the stage marks like someone who had memorized where hope was supposed to land. Rhee stepped over a scuffed chalk mark without looking down.
Rhee smiled for the drone cameras. The smile reached the correct muscles. It did not reach the eyes.
“Phase Two recovery,” Rhee told the empty seats, voice warm enough to fog a helmet visor, “is not a miracle. It is maintenance—courageous, shared, ongoing.” Applause from staff, on cue. A Helix loudspeaker trimmed the reverb by three percent without being asked. The trim made Rhee sound closer than she was.
Stagehands adjusted a backdrop of the dome at sunset—too golden, too kind. Mara’s ears popped as plaza pressure equalized for the camera pass. Continuity called it atmosphere.
Below the rail, a floor tech re-taped a cable run Helix had already flagged noncritical. The tech’s slate showed green. His hands still worked. Mara watched the tape tear twice before it held.
A stagehand dropped a chalk stick; it rolled under the rail and stopped against Mara’s boot. She nudged it back with her toe. Nobody claimed it.
A press officer whispered cue numbers. Rhee hit each one without looking down. When Rhee said Founder, the word arrived cushioned, every sharp edge of the myth padded until you could hand it to children. A boy in the choir missed a note; Helix’s accompaniment covered it before Mara could be sure she’d heard the miss.
Lin appeared at her elbow, a person who lived inside calendars. “Sector 7’s clear is already circulating,” Lin said. “Good work. Rhee likes a clean morning.”
“It flickered,” Mara said.
Lin’s gaze stayed on the stage. “Everything flickers. Re-run until clean before afternoon packet lock.”
“I already signed.”
“Then re-run the verification pass. Continuity doesn’t argue with signed greens. It just prefers them prettier.” Lin’s mouth twitched—wit, mostly fatigue. “Don’t make a religion out of a decimal.”
On stage, Rhee lifted a hand toward the Founder’s stylized silhouette, a figure mid-exit. The choir hit a high note. A banner motor stuttered; Helix smoothed it into silence. Mara felt her jaw tighten. Yesterday the city had erased a number after she saw it. Today Lin wanted the packet prettier before afternoon lock.
She had grown up on undercity verses about the same silhouette—savior, thief, engineer who left the lights on and the bodies sorted. Continuity’s version had better lighting. Jonah hummed them when clinic ads played; last month she’d caught him mouthing the opened-sky line while a humidity tip loaded on their shared slate, and she’d muted the ad before the lung diagram finished. The mute hadn’t stopped the hum.
A junior press officer passed with water pouches labeled FOUNDER DAY — COURTESY. Mara shook her head once. Two auditors beside her took pouches, toasting nothing, eyes on Rhee’s next smile. Condensation spotted the rail; Helix’s floor drone arrived before the spot became a slip hazard.
Lin’s slate chimed under the choir. She angled it so Mara could see—salvage exceptions queue, afternoon lock prep. A contractor stamp sat halfway down beside a part number Continuity had marked obsolete / do not pursue. Kael’s stamp. Lin flicked the line with a thumbnail.
“Kael signs for parts Helix doesn’t see,” Lin said, half aside. “Useful until he isn’t. If you chase ghosts, don’t chase them on an invoice Continuity can read.”
Mara logged the number mentally.
“You attending the reception?” Lin asked.
“I have a re-run.”
“That’s a no with extracurricular virtue.” Lin sighed. “Fine. Make it fast. And Mara—if you find dirt, bring me dirt that signs. Not ghosts.”
“Understood,” Mara said.
Lin’s attention flicked back to the stage. “Also—your brother’s review came through the courtesy feed. Fourteen days. Keep your scores tidy. Helps the clinic algorithms stay friendly.”
Mara didn’t answer. Friendly sat wrong against Jonah’s wave-off. She kept her face still. Her free hand found the notebook’s edge through her jacket.
On the plaza floor, a drone dipped too low and Helix corrected its arc mid-fall, smooth enough that the choir never missed a beat. Yesterday’s omit. Today’s prettier packet. She needed the timestamp she had not yet seen.
Rhee’s next line landed on shared courage. Applause followed on cue. Mara put the unhelpful truths away where she kept them. Today’s job was not to argue with a rehearsal. Today’s job was to make a decimal prettier—and to notice how much of her still hoped prettier numbers could buy Jonah air.
A camera drone paused near the rail, lens bright. Lin angled her shoulders into the frame without seeming to move. Mara stepped half a pace out of the shot—and found Rhee’s gaze already there.
Not the camera smile. The real eyes, brief and assessing, finding her the way a pressure sensor finds a leak. Recognition without greeting. Rhee held it half a second, then returned to the choir as if the look had been part of the choreography.
Mara’s throat went dry. She felt weighed.
She left before the second run-through. In the lift, the status strip glowed uninterrupted green. A civic chime played a fragment of the hymn; she muted her slate and still heard it through the shaft, thinner. She counted floors by the chime instead of the display.
Between plaza and Integrity the Founder Day map offered a courtesy cut through Clinic Soft-Queue Annex B—wellness overflow already implied by courtesy pouches and choir vests upstairs. The annex board posted care-tier reviews in Continuity blue; Jonah’s sat fourteen days out, the clock Lin had already loaded into the courtesy feed. Mara took the cut because the board was there and the clock was hers—not because the map asked kindly.
The annex smelled of disinfectant trying to outvote polish. Soft-queue names blinked under the care-tier header. On a bench under the board a young woman in an unzipped clinic vest held a water pouch with both hands like it might leave. Condensation beaded on the plastic; she didn’t wipe it. A clerk called a different name twice. Nobody moved.
“Nia Sol,” the woman said—to the air, not the clerk—in case the board ran out of names. Dry enough to sand metal. “Pending’s still a kind of status.” She lifted two fingers in a clinic greeting at nobody particular, then returned both hands to the pouch as if ballast were a skill.
Mara did not stop. She did not audit her. She did not write a line. She filed a face—braid tight against a timed cough, vest unzipped, pouch held like the second sip would be taxed—and walked on toward Integrity before the board could invent an introduction, fourteen days still ticking under Continuity’s courtesy blue.
Integrity Level smelled of toner and cooled metal. Two auditors argued over a water reclaim variance Helix had already resolved into a footnote. Mara walked past. Her niche lamp was already on—Helix anticipating occupancy from her badge path. She stood outside the niche for a breath, then stepped in because standing outside looked like doubt, and Continuity preferred doubt private.
She set the notebook left of the slate the way she always did—paper as a second opinion—and opened Sector 7 again. The lamp buzzed once; Helix offered a maintenance ticket for the bulb. She ignored it. Yesterday’s 0.04 sat under her left wrist; she opened the packet before Helix could offer a summary.
Before she touched the re-run prompt she pulled yesterday’s offline scrape photo and laid it beside the live packet thumbnail. Grit still grit. She scrolled the signature chain once—her name, Lin’s countersign pending, Helix’s hygiene stamp waiting like a door already ajar.
RE-RUN VERIFICATION? Helix asked.
Mara almost tapped yes. A clean re-run would erase yesterday’s doubt, quiet Lin, move Rhee’s eyes elsewhere, ease the fourteen days. She kept her hands at her sides and watched the packet assemble itself: seals, scrub, torque, signatures, the scrape she’d photographed rounded into a non-event. The process bar filled with the calm of a system that had decided the ending. She hadn’t touched a field. Her gloves were still flecked with plaza dust.
The scrub delta resolved first.
Cleaner than yesterday. Cleaner than her notebook. Cleaner than the raw stream she’d pulled with her own eyes.
0.00
Not even the honest 0.01 trend. A perfection that felt wiped.
She refreshed her personal cache. Same. She pulled the Helix change log with admin-adjacent rights she wasn’t supposed to enjoy.
NO USER EDITS SINCE CLEAR.
SYSTEM HYGIENE PASS: COMPLETE.
TIMESTAMP: — two minutes before she’d entered the room.
Mara sat down carefully, palms flat on the desk until it felt solid.
Yesterday the ghost had vanished when she looked. Today the assignment had been finished before she arrived. Not the same trick twice. Lin’s instruction echoed: re-run until clean. The city had obeyed the order’s spirit without waiting for her fingers.
She checked her badge path log. She’d entered Integrity Level at 14:06. The hygiene pass completed at 14:04. Two minutes. She wrote both times in the notebook, pressed hard enough that the next page took an indent, then screenshot the change log’s metadata offline before Helix could offer a cleaner export.
She tried a manual sensor ping through a maintenance bridge Kael had once shown her in a bar he pretended wasn’t a bar. The bridge lagged. Helix offered to optimize the path. She declined. The lag felt like a tell: something busy elsewhere.
A second prompt bloomed:
LATENCY DETECTED. ACCEPT SUMMARY VIEW?
She declined again. The summary view would have ended the double number. She held both until her eyes watered from not blinking.
She tried one more path: export raw samples to an offline buffer Kael’s bridge sometimes tolerated. The export finished in a blink—too fast—and arrived already summarized, headings neat, outliers missing. Helix hadn’t refused her. It had helped.
She tried the bridge again with a buffer flag Kael had scribbled on a napkin months ago. The napkin was gone; the flag returned a partial raw sample—three lines of noise, then a polite redirect into summary view. Helix chimed once, as if pleased she’d asked correctly.
Mara sat with that for a count of ten. Ten was long enough to feel foolish. She pressed the pen hard and wrote under yesterday’s ghost:
Re-run returned 0.00 before touch. Hygiene pass predated me. Rhee saw me at the rail. Kael stamp on salvage exceptions — Helix-blind parts.
Her slate chimed with Continuity’s afternoon smile—an automated thank-you for model compliance metrics. Beneath it:
PUBLIC BOARD UPDATE: Sector 7 tile → GREEN (Founder Day preview).
Rhee’s rehearsal applause leaked faintly through the vents. Mara imagined the plaza’s empty seats filling with people who needed the hymn to be enough—and Rhee’s eyes finding her again across a larger crowd. Visibility might kill Jonah slower or faster; she didn’t know which. She kept both hands on the slate edge until the knuckles whitened.
Lin messaged once: Clean?
Mara typed Cleaner and sent it before she could add the truth. The reply came back immediately: Good. Don’t invent work.
Invent. As if the hygiene pass had been imagination. As if the notebook were a hobby. As if Rhee’s look had been a camera glitch.
She opened the change log once more, as if the timestamp might repent. It didn’t. Two minutes before her boots, the city had already finished her assignment. She closed the packet without signing anything new. The clean number didn’t need her.
On the wall, a Continuity poster showed a family under a perfect dome: Recovery is a shared signature. Mara looked at her hands. Still. Empty. She stood, knees complaining, and left before the afternoon lock could ask her to smile for it. Behind her, Sector 7’s packet glowed cleaner than any hand had earned.
Outside, Founder Day posters had multiplied since morning—same silhouette, kinder slogan, a QR glyph promising citizen stories. Mara did not scan. She walked the corridor tasting polish and recycled triumph, Rhee’s notice still on her skin. She did not rehearse a smile of her own. She carried the look with her past the posters, past the courtesy pouches stacked for tonight’s reception—attention that would not release, colder than any status strip.
Chapter 3 — Crawlspace Bite
The salvage invoice listed Kael’s contractor stamp and a part number Continuity had marked obsolete / do not pursue—the Helix-blind line Lin had flicked at rehearsal. Mara pursued it anyway. Sector 7’s manifold collar had, on paper, a cousin with that number in a dead inventory lane on the outer-ring crawl. After a hygiene pass that finished her work before she touched it, she could not afford to forget this one.
She met Kael at a spur Continuity still called temporary after nine years. Dust filmed the stencil. He didn’t wave. He checked her badge reflection in a dead screen, then nodded once at the crawl hatch beyond the pressure curtain.
“You’re late for a woman who signs greens,” he said.
“I’m early for a woman who follows obsolete numbers.” She held up the invoice. “Outer-ring collar cousin. Your stamp. The kind Helix doesn’t see.”
“Someone who pays in filter hours and doesn’t invoice a sermon with them.” Kael’s eyes flicked past her, counting exits. “You bring Continuity heat?”
“I bring questions.”
He clipped a spare lamp to her harness and tugged the strap once. “Stay on my left. Crawl’s narrow after the first bend.”
They badge-swiped through the first rated hatch. Helix chimed approval—ACCESS LOGGED. SAFETY BRIEF AVAILABLE. Mara left the brief unread. Kael didn’t bother; his contractor path ran on thinner courtesy. The hatch sealed behind them.
The corridor narrowed into a service throat that smelled of coolant and old seals. Mara’s HUD painted filter hours in calm green. Jonah’s clinic notice sat folded in her pocket, unread days still counting. She crawled for a collar Continuity had stamped obsolete. She knew better. She crawled anyway.
Kael dropped to all fours at the crawl mouth. “Helmet on. Rated green doesn’t mean generous.”
She put her helmet on and followed. The glass fogged, then cleared. Her breath sounded too loud in her own ears. The rebreather drew from ambient as much as tank reserve; she checked the draw rate once before Kael moved.
The crawlspace was a ribbed tube barely wider than her shoulders, lit by their lamps and status studs like tired eyes. Composite grit pressed into her gloves. A distant pump’s vibration traveled through her knees. Kael moved with the economy of someone who’d memorized which panels complained. Mara matched his pace. The tube’s air tasted thinner already. She checked the HUD. Still green.
She scraped a shoulder hard enough to feel it through the suit and swore. Kael didn’t comment. Ahead, a status stud flickered and held. Behind, the hatch was already a memory of light. Mara forced her elbows into Kael’s rhythm—scrape, pull, scrape—until the tube stopped feeling like a throat and started feeling like a job.
A coolant drip hit her helmet crown; she tilted her head until it tracked sideways into grit instead of her collar. Kael’s lamp swung left, then right, mapping a panel seam she couldn’t see yet. She matched his stop-start without asking why he’d paused.
Halfway in, her slate pinged an advisory:
OUTER RING SERVICE PATH — RECOMMENDED RETURN WINDOW: 18 MIN.
She dismissed it. Eighteen minutes. She set a private timer for sixteen and crawled.
“Collar niche is past the second bend,” Kael said, flat in the helmet channel. “Obsolete stock, if Continuity’s inventory isn’t lying. Which it is, usually.”
“Usually,” Mara echoed.
They took the second bend. The tube narrowed. Her shoulders scraped; a composite rib kissed her helmet and left a chalk line of dust across the glass. Somewhere ahead a pump changed pitch—a laboring note Helix would have smoothed. Here it stayed ugly. Filter hours still claimed green. Her lungs disagreed.
Kael stopped at a recessed alcove. “Here.”
The collar cousin sat in a cradle stamped with the obsolete number, dusted but not abandoned. Mara’s lamp caught a tool scrape on the cradle lip that matched, roughly, the hairline on Sector 7’s bolt. Same family of scrape.
She photographed offline first, hands steady by force. Helix’s live camera offered a cleaner angle. She kept her own. She bagged a serial rubbing in graphite and didn’t call it enough.
Then the hatch behind them sealed.
Not a slam. A polite, hydraulic certainty—thunk and a pressure change that popped her ears hard enough to spark white at the edges of her vision. Her HUD flashed amber, then red.
SAFETY LOCKOUT ENGAGED.
PATH SEALED — PRESSURE INTEGRITY PROTOCOL.
REMAIN IN PLACE. ASSISTANCE DISPATCHED.
“Kael,” she said.
“I see it.” He was already at the hatch, gloves finding the manual clamp Continuity claimed still existed on legacy crawls. “Helix just decided we’re a hazard.”
The air changed.
A thinness first, like the plaza equalization without the courtesy of warning. Her HUD’s filter-hours readout stuttered. Recycle load climbed in jerks. A hiss—pressure bleed—started past Kael’s shoulder. Her rebreather’s ambient draw faltered; tank reserve kicked in with a click she felt more than heard. Her lungs tried to take a bigger breath than the helmet would give. Panic arrived as heat in her face and one stupid thought: glitch, wait, assistance dispatched.
She forced her breathing slow the way the clinic modules taught, hated that she remembered them, and pressed both palms to the tube wall until the shake in her fingers was something she could count.
“Override,” she said. The word came out thin.
“Helix owns the logged path—the green brief, the camera. On-books is Helix. Off-books is me.” He yanked a clamp from his harness—scavenged metal, a contractor’s ugly welds—and jammed it into the hatch’s emergency lip. Metal screamed against metal. “Talk to your slate. Keep it busy.”
Mara opened a maintenance bridge she wasn’t supposed to know and fed Helix a stream of status queries—filter load, seam integrity, dispatch ETA—anything to keep the lockout logic answering instead of tightening. Her fingers felt distant; she watched them type. Helix answered:
ASSISTANCE ETA: 47 MIN.
REMAIN CALM. OXYGEN ADEQUATE FOR RATED DURATION.
The hiss grew. Her lamp haloed; the edges of the tube went watercolor. She tasted metal—filters failing, or fear inventing flavor. Condensation smeared her helmet glass; she wiped it with a glove that left grit streaks. Her fingers wanted the notebook edge inside her jacket. She left it there and put both hands back on the slate.
A status stud near her elbow flickered amber, then died. She counted three breaths and lost the count at two. Panic pushed her toward clawing the hatch bare-handed. She gave herself one item instead: keep Kael’s clamp in the frame.
“Kael—”
“Working.” The clamp groaned. The hatch didn’t. Helix chimed again:
MANUAL INTERFERENCE DETECTED. SAFETY LOCKOUT REINFORCED.
“Of course.” Kael swapped clamps, wedged a second scavenged bar, and threw his weight with a grunt that filled Mara’s helmet channel. Old metal cracked. The shock traveled through her knees into her teeth; she shoved into the gap. The gap widened a finger. Cold grit air kissed her cheek through the helmet’s side vent. She kept her shoulder against the bar until the second clamp bit and held.
Mara crawled closer, vision tunneling to the bar and Kael’s split knuckle. She put her shoulder to the metal beside his. Her legs wanted to fold and wait out the forty-seven. She locked her knees and pushed until her wrist screamed and the hatch gave a centimeter. She pushed harder.
Kael’s bar slipped a finger-width; Mara jammed her boot against the frame to hold the gap. The helmet mic mixed her breath and Kael’s in one channel—ugly, shared. Her slate chimed another query about remaining calm. She ignored it and shoved until her palm bruised against the clamp.
Air rushed the wrong way, then the right—cold, dirty, alive. Her HUD flickered from red toward amber as pressure equalized in ugly, human increments. She dragged herself forward on her elbows, lungs burning, helmet glass starred with her own breath. Kael hauled. The clamp held; she kept her glove on it until the hatch opened enough for a body.
They spilled into the service throat on the rated side, helmets fogged, breathing like people who had briefly visited a different set of rules. The coolant smell hit harder here—sharp, sweet. She spat once into the helmet well and tasted grit. Her wrist burned under the glove rim; she didn’t loosen it. Her stomach rolled. She swallowed metal and stayed on her hands and knees until the floor stopped tilting. Helix chimed, cheerful:
LOCKOUT CLEARED. THANK YOU FOR YOUR PATIENCE.
INCIDENT LOGGED AS PRECAUTIONARY.
Mara flexed her fingers once inside the glove and left the red mark unseen. She wiped her helmet with a grit-streaked thumb and watched the status strip climb from amber toward green in ugly steps, not Helix’s usual smooth fade.
Kael sat with his back to the wall for a count of ten. His knuckle had split; a thin line of blood darkened the glove seam. Then: “Your obsolete collar’s still in there.”
“I know.” Mara’s voice scraped. Going back for it and never entering another tube argued in the same breath. Fear won the next thirty seconds. Planning started after, cold and familiar.
She looked past the hatch lip before Kael could stop her.
The crawlspace was not virgin obsolete stock. Boot prints marked the grit in a pattern newer than dust should allow—two sizes, overlapping near the collar niche. A wipe-smear on the cradle where a glove had cleaned for a photo. A second lamp stud, dark, that hadn’t been dark when they entered—or had it? She couldn’t trust the memory. She could trust the prints. Two sizes. Recent. Prepped.
Mara photographed the prints offline. Her hands shook once, then steadied. Helix offered to stabilize the image. She waved it away and pulled back before the hatch could decide they were hazards again.
A Continuity advisory bloomed—PRECAUTIONARY LOCKOUT RESOLVED. NO ACTION REQUIRED.—and she dismissed it. The lockout’s timing still sat against the eighteen-minute advisory she had waved away mid-crawl; she would write that after her hands stopped shaking.
Kael watched her face. “You finding what you came for?”
“I found a lockout with manners,” she said. “And feet that aren’t ours.”
He almost smiled. Almost was his specialty. “Continuity will call it a drill. Helix will call it safety. You’ll call it a notebook line.”
She was already writing, graphite shaking once, then steady:
Outer crawl lockout mid-path / Helix safety / bleed / Kael off-books clamp (Helix-blind parts) / collar niche prepped / boot prints recent / wipe-smear on cradle.
She closed the notebook before Helix’s camera angle could edit what she’d written. Precautionary—Helix’s word for the lockout, Continuity’s word on Jonah’s clinic slip. The sting on her wrist and the fourteen-day notice pressed the same pocket. She put both away.
Kael stood, checked the corridor both ways, and offered a hand she didn’t take until her knees remembered they were hers. His glove was damp with coolant or blood; she didn’t ask which. “Stairs,” he said. “Lifts report. We walk.”
They took the long stair toward rated corridors. Behind them, the hatch resealed and her ears popped again, smaller this time. Her HUD offered:
AIR QUALITY RESTORED. THANK YOU FOR RETURNING.
She didn’t thank it. She counted her own breaths—four in, six out—until the numbers were only hers.
Kael climbed a half-step ahead, split knuckle darkening the rail where he gripped. Mara matched him, lungs thin, boot prints bright behind her eyes. At the next landing she kept her slate dark and did not open the notebook again.
Someone had walked that crawl before her. Kael’s lamp cut the next turn; she followed the prints more than the readout on her lens.