"Three days of solid progress, and I think we've earned a breather." Varen stood at the nexus hub's center, addressing the group with the relaxed authority of a man proposing something he'd already decided. "We've accomplished more together in three days than the four of us managed in the week before you arrived. Today we knock out the two remaining objectives for this level, then we head back to the surface. Tomorrow is a rest day. Good food, fresh air, and time to plan the next phase with everything we've learned."

  The irrigation nexus pulsed gold around them, the hub warmer than it had been yesterday. The activation was settling into the platform's architecture, conduit lines radiating heat through every surface, the mechanical arm housings along the walls carrying a residual warmth that hadn't been there twenty-four hours ago. Greenfall was waking in stages, and each stage raised the temperature another degree. Cael could feel it through his boots, through his palms where he leaned against the central distribution node, through the steady hum of his Sigil responding to infrastructure that was coming alive around them.

  Lumi rode on his shoulder, her weight slight and familiar against his collarbone. She'd been quieter than usual on the walk from Greenhaven, her markings cycling at the faster rhythm that had settled in since they started working inside the ruin. Cael had stopped remarking on it. The deeper systems ran hotter, denser, more saturated with resonance than anything she'd experienced outside Auralis. Adjustment took time.

  Garrick nodded from where he leaned against the chamber wall, arms crossed. "Sensible. The deeper work drains harder than the upper levels. Better to go in fresh than grind ourselves down and make mistakes."

  "What are the two objectives?" Lyra had her journal open, stylus moving across the page.

  "The western branch has a secondary distribution node that extends the irrigation network's coverage. Smaller than this hub, but it controls flow to the platform's outer agricultural sections. Activating it means the irrigation system reaches the full footprint rather than just the central zone." Varen turned to indicate the eastern passage. "The eastern branch leads to what the conduit architecture suggests is the primary seed vault for this level. Unexplored. It needs scouting and mapping before we can plan any work down there."

  Torvin cracked his knuckles. "The western approach is partially collapsed. I walked it yesterday while you were finishing the node work. Similar to the blockages we've cleared before. Few hours of labor, then the junction should be accessible."

  "Which is why I'd like the clearing team on that side." Varen looked at Garrick and Torvin. "You two work well together, and the node activation will need Lyra's resonance to tune it." He turned to Cael. "Take Mireth and Ryn into the eastern vault. Mireth knows the notation patterns for the storage systems from our work on the upper levels, and Ryn covers your flanks if the sealed sections have security infrastructure."

  Mireth was already pulling her notes from the previous day's notation work, organizing references she'd need. Ryn stood near the passage mouth, bow across her back, already reading the corridor ahead.

  The arrangement made sense. Every pairing served a clear purpose.

  "We reconvene here before heading up," Varen said. "Take the time you need, but let's aim to be done before the heat starts breaking. The walk back to Greenhaven is more pleasant in the afternoon shade."

  They split at the nexus, four and four, moving into their respective passages with the easy purpose of people who trusted the plan and each other.

  Lumi stayed on Cael's shoulder. She watched Lyra's group disappear down the western corridor, her dark eyes tracking the movement, but she didn't shift or reach toward them. Her bond was with Cael. It had always been with Cael. The fact that she enjoyed Lyra's warmth and Lyra's singing didn't change where she belonged when the work demanded attention.

  * * *

  The eastern passage dropped the temperature within fifty paces.

  Cael felt it in his hands first, the stone beneath his fingertips cooling as they moved beyond the nexus hub's thermal reach. The conduit lines in the walls dimmed from active gold to dormant amber, their luminescence reduced to a faint pulse that provided just enough light to navigate by. The air shifted from the heavy mineral warmth of the active levels to something drier, thinner, carrying the particular chill of chambers that had been sealed since before anyone alive could remember.

  "The vault systems were designed for preservation," Mireth said, walking beside him with her notes in one hand and a light crystal in the other. The crystal threw soft white illumination across the passage walls, picking out the conduit junctions and carved notation that marked system boundaries. "Seeds need stable conditions. Cool, dry, consistent. The cold we're feeling is the ruin doing its job, keeping everything inside exactly as it was."

  "Makes sense." Cael ran his palm along the wall. The stone was the same resonance-formed material they'd encountered on Level 4, seamless and dense, but here it held a different quality. Where the irrigation systems radiated warmth, these walls absorbed it, drawing heat away from the interior spaces steadily and without effort. His skin prickled at the transition.

  Ryn moved ahead of them, checking corners and junctions. Her footsteps were light on the stone, nearly silent. She paused at each intersection, scanned the passage beyond, and continued with a slight nod that meant clear.

  Lumi's whiskers twitched against Cael's neck. The temperature drop registered in her body language before he consciously processed it, her fur pressing flatter against his shoulder, paws tightening fractionally on his collar. She was alert. Not alarmed, but paying attention to the space in a way that went beyond curiosity.

  The passage opened into a vaulted antechamber, and the cold deepened.

  Frost traced the edges of the conduit junctions where dormant resonance met the preservation system's environmental controls. The crystals in the ceiling housings were dark, their faceted surfaces reflecting Mireth's light crystal in pale blue fragments that scattered across the floor like still water. Three sealed doors marked the far wall, each framed by notation carved into the stone with the precision of people who understood that what they were preserving would need to outlast them.

  "Primary vault access." Mireth moved to the nearest door, her breath visible in the cold air. She studied the notation with the focused attention of someone reading a language she'd been immersed in since arriving at Greenfall. "This matches the third-ring sequences from the notation chamber. Storage classification, preservation rules, retrieval authorization." She traced a symbol cluster with her fingertip. "These vaults hold the foundation stock. The original seed lines for everything the platform was designed to grow."

  Cael pressed his palm to the resonance lock on the center door. The mechanism was familiar by now. He found the sequence, matched it, and the tumblers rotated with a sound like stones settling after a long wait.

  The seal released. Cold air flowed outward, carrying the scent of mineral preservation and something faintly organic beneath it, the ghost of biological material held in perfect stasis for centuries.

  The vault beyond was extraordinary.

  Rows of crystalline preservation housings stretched from floor to ceiling in ordered ranks, each one sealed behind its own resonance barrier, each one connected to the conduit network by fine channeling lines that converged on a central regulation node at the room's heart. The housings held shapes visible through their translucent walls: seed pods, root samples, bulb clusters, specimens from an agricultural program that had been designed to feed a civilization. Hundreds of individual samples, maybe thousands, each one catalogued by the notation carved into its housing frame.

  Mireth entered the vault with the reverence of someone stepping into a library that held answers to questions she'd been asking for years. Ryn followed, eyes sweeping the space before she let herself look at what it contained.

  "This is intact." Mireth's voice carried a warmth that had nothing to do with temperature. "Completely intact. The preservation systems held through the entire dormancy period. Eight hundred years of perfect stasis."

  "Can we verify what's stored?" Cael moved to the central regulation node. The housing was cold beneath his palm, the resonance within muted but present, waiting for a signal to begin.

  "Varen showed me how to start it before we split." Mireth set her notes on a flat surface near the node and consulted a page covered in her careful handwriting. "The system should read everything in the vault once it wakes up. Simple activation, same as lighting a dormant conduit." She looked up at Cael with comfortable confidence. "I can handle it. Just needs a clean signal."

  Cael stepped back to give her space. Ryn positioned herself near the vault entrance, facing the antechamber beyond. Lumi shifted on Cael's shoulder, settling lower, her body pressed against the side of his neck.

  Mireth placed both palms on the regulation node's housing. Her Sigil flared, golden light spreading from her hands into the crystalline surface. The resonance she fed into the system was steady and practiced. The gold carried that faint edge Cael had noticed in all of Varen's group, a quality that sat slightly adjacent to the pure tones he and Lyra produced. Regional variation. He'd accepted the explanation days ago and saw no reason to revisit it.

  The cataloguing system activated. Conduit lines in the vault walls brightened from dormant amber to working gold, light flowing through the fine channels that connected each preservation housing to the central node. The housings themselves began to glow with individual luminescence, each one responding to the indexing signal with data about its contents. Notation appeared on the node's surface, flowing script that catalogued species, preservation dates, viability assessments.

  Lumi's markings spiked.

  The change was immediate and unmistakable. Her crystalline patterns, which had been cycling at their elevated rhythm, surged to a frequency Cael hadn't seen since Auralis. The glow intensified from soft blue to sharp white, her whiskers going rigid against his skin, her whole body tensing on his shoulder with a compression that drove her claws through his shirt and into the leather beneath.

  Her Cleansing Field pulsed. Once. Brief and involuntary, the same instinct that had fired near corrupted systems in Auralis. The pulse washed outward from her body in a sphere that Cael felt pass through his chest, a momentary clarity that tasted like clean air after rain.

  Then it faded. Lumi's markings dropped from their spike but didn't settle. She pressed closer against Cael's neck, her body rigid, her breathing fast and shallow.

  Mireth didn't notice. She was focused on the cataloguing output, reading the notation that flowed across the node's surface with growing excitement. "The viability ratings are extraordinary. Ninety-percent-plus preservation across the entire vault. This stock is usable. The agricultural program could restart from this foundation alone."

  Ryn glanced over her shoulder at the pulse. Her eyes found Lumi on Cael's shoulder, read the animal's posture, and returned to watching the antechamber. She had no frame of reference for what Lumi's normal behavior looked like, and a brief flash of light from a resonant animal in a resonance-rich environment didn't register as significant.

  Cael reached up and scratched behind Lumi's ear. Her body stayed tense beneath his fingers. The Cleansing Field pulse had been the same instinct he'd felt fire near corrupted systems in Auralis. The same involuntary response to the presence of Dissonance.

  The vault was sealed until they opened it. The cataloguing system was a preservation index. There was no framework for what he'd felt to mean what it had meant in Auralis.

  "She's been reactive to the deeper systems," Cael said. His voice was casual, genuine. "The resonance density at this depth is beyond anything she experienced on the surface. She'll settle."

  "Animals are sensitive to resonance in ways we can't always read." Mireth looked up from the catalogue with a warm expression. "She'll adapt. We had similar reactions from wildlife at our last site. They settle once the systems find their rhythm."

  Cael nodded. The explanation was reasonable. The vault was cold, the systems were unfamiliar, and Lumi was a small animal in an enormous underground complex saturated with active resonance. Overstimulation was the obvious reading.

  He filed the pulse alongside the faster markings, the tension in her body, the way she'd pressed closer when the system came online and stayed pressed close afterward. Data points. He'd think about them properly tomorrow, when they were rested and he had time to sit with what he'd observed.

  The vault's cataloguing continued. Mireth documented the output with meticulous care, her notes filling page after page. Cael helped interpret the conduit architecture, mapping how the vault connected to the broader network. Productive work. Good work.

  Lumi stayed on his shoulder, tense and watchful, her markings cycling at a rhythm that would not settle.

  * * *

  The passage beyond the vault narrowed.

  Unauthorized reproduction: this story has been taken without approval. Report sightings.

  Cael felt the temperature shift again as they moved deeper, the preservation cold giving way to something more neutral, the ambient warmth of stone that sat between active and dormant systems. The conduit lines brightened marginally as they approached whatever lay beyond the storage complex, the network's architecture suggesting connected infrastructure ahead.

  Ryn held up a closed fist. Stop.

  Cael halted. Mireth pulled up behind him, her light crystal dimming instinctively as Ryn's posture shifted from watchful to ready.

  Movement ahead. The sound of stone against stone, mechanical and precise. Familiar.

  Two alcoves flanked the passage where it widened into a junction chamber. The constructs that emerged were smaller than the irrigation guardians they'd fought yesterday. Leaner builds, narrower frames, their resonance-treated alloy carrying a dull sheen in the conduit light. Vault security. Designed for enclosed spaces, for speed in corridors, for interception in tight quarters.

  Cael's Inspect fired.

  [Vault Sentinel — Level 8 | Protocol: Restrict Access | Threat: Low-Moderate]

  [Ambient Dissonance: 3%]

  Three percent. In a sealed section adjacent to a preservation vault. In a space that should have been in perfect dormant equilibrium.

  The sentinels moved. No defensive positioning this time. They advanced down the corridor, blade-arms extended, crystal eyes locked on the three intruders.

  Cael was already in motion. The first sentinel closed fast, its blade-arm cutting a precise horizontal arc. Cael's polearm met it mid-stroke. Impact. Dense, resonant, the clash of his weapon against treated alloy ringing through the narrow space.

  Ryn passed him.

  Her bow was in her hand and back on her shoulder in the same motion — the corridor was too narrow for a clean draw. The short sword came out instead. She moved through the gap between Cael's engagement and the wall with the economy of someone who'd been fighting in tight spaces long before she had a Sigil. The second sentinel's blade-arm descended toward her, and she simply wasn't where it landed. A pivot, a step, the short sword finding the elbow joint on the backswing. The sentinel's arm stuttered. Ryn hit it again in the same joint before it recovered.

  Behind them, Mireth's drum found its beat. The rhythm was quick and percussive, designed for tight spaces, the sound bouncing off the narrow walls and settling into the stone with a vibration that Cael felt in his chest. The sentinel he was fighting hesitated, its next strike arriving a fraction late. Enough.

  His polearm found the gap. Cadence Thrust drove through the sentinel's chest plate where the shoulder seam left a finger's width of exposed housing. The construct seized and dropped.

  Ryn's sentinel lasted three seconds longer. She worked it with disciplined precision, each strike targeted at joints and seams. The sentinel tried to reposition. Ryn cut its knee joint, dropped it to one leg, and drove her sword through the central housing.

  Silence returned to the corridor.

  Cael pulled his polearm free and checked the Dissonance reading again. Three percent. Still there. Low enough to mean nothing. Low enough to mean ambient trace from centuries of sealed dormancy. The kind of reading he could file under background noise and move on from without losing sleep.

  He filed it. Alongside everything else.

  "Nice work." He looked at Ryn, who was wiping her blade on a cloth. "You handled that well in close quarters."

  "Of course." Ryn sheathed her sword. "Tight spaces suit me just as well as the open ones."

  "These were different from yesterday's guardians," Mireth said, studying the deactivated constructs with interest. "Smaller, quicker. Built for corridors, not open chambers."

  Cael nodded. The vault complex opened beyond the junction, more storage corridors branching into the platform's deeper architecture. Enough to map, enough to document, enough to justify the expedition and fill the day's objectives. He led them forward into the cold.

  Lumi's claws tightened on his shoulder as they passed the deactivated sentinels. Her Cleansing Field stayed quiet this time, but her body held the same tension it had carried since Mireth activated the cataloguing system. Cael felt it against his neck, the small constant pressure of an animal that couldn't tell him what was wrong in words he could understand.

  Tomorrow. He'd think about it tomorrow.

  * * *

  The western branch held its heat like an oven.

  Garrick felt it through his armor as they worked, the conduit lines in the walls radiating warmth that accumulated in the narrow passage until the air itself felt thick. Sweat traced lines down his temples and gathered beneath his leather collar. The stone beneath his hands was almost uncomfortable to grip, each piece of rubble carrying the thermal output of a system that had been building pressure since yesterday's activation.

  The collapse was straightforward. A ceiling section had folded inward along a fracture line, filling the passage with irregular debris to chest height. Fresh break surfaces, days old, the platform still adjusting to having open space where sealed stone had sat for centuries.

  Torvin worked beside him with the comfortable efficiency of shared labor. They'd established their rhythm across three days of similar clearings, an unspoken division where Garrick read the structural stress and Torvin moved the stone. The larger man had a gift for it, the ability to assess a piece of rubble's weight and center of gravity in the time it took to wrap his hands around it.

  Lyra sat on a cleared section of floor behind them, journal in her lap, mapping the conduit architecture that the collapse had exposed. The broken ceiling revealed junction points that were normally hidden behind intact stone, and she was documenting the internal routing with the focused attention of someone who understood that the map mattered more than the debris.

  Varen worked at the edge of the collapse, clearing the smaller pieces that Garrick and Torvin couldn't reach without destabilizing the larger slabs above. His movements were economical and precise. He didn't waste effort, didn't rush, didn't try to prove anything through the physical work. He simply contributed what was needed and watched the passage take shape.

  "The junction beyond this should be accessible within the hour," Varen said, pausing to wipe stone dust from his hands. "The node housing is visible through the gap. Structurally intact."

  "Good." Garrick heaved a slab and settled it on the growing pile. The heat made the work harder than it needed to be. His resonance hummed along his sword and shield where they rested against the wall, the weapons responding to the conduit density with the low persistent warmth of their new affinity. "Lyra, how's the routing look?"

  "The junction connects to three separate distribution branches." Lyra didn't look up from her journal. "One runs deeper into the platform, one angles toward the exterior face, and one loops back toward the central nexus. If this node controls all three, activating it extends the irrigation network's reach significantly."

  "That exterior branch is the one that matters most for Greenhaven." Varen rested against the passage wall, the heat radiating through the stone pressing against his back. "Right now the valley benefits from whatever bleeds out of the central system on its own. An active line feeding the outer slopes would change everything."

  Torvin paused to drink from his waterskin, then offered it to Garrick. "Reminds me of the site we cleared before this one. Smaller platform, partially collapsed, but the distribution system was similar. Single hub feeding multiple branch lines."

  "How much of that one did you manage to activate?" Garrick accepted the skin and drank.

  "Three of the seven major nodes. Enough to prove the concept worked." Torvin wiped his mouth with the back of his hand. "Varen mapped the full architecture within the first week. The man has an eye for it. We'd still be fumbling around the first level without his sense for how these places are built."

  "The platform taught us what it needed." Varen's voice carried the ease of someone sharing a memory that still held warmth. "Every system we activated revealed the next step. The architecture guides you if you're willing to listen. That site is where Mireth decoded her first notation sequence, where Torvin learned to read structural stress in resonance-formed stone, where Ryn discovered her Sigil could map load-bearing walls through solid rock." He paused, something settling behind his eyes. "Where all of us learned what this work could be."

  Torvin nodded, the agreement carrying weight. "Changed everything. Before that site, I was just a man with a shield and some instincts. Afterward, I understood what the instincts were connected to. The deeper we went, the more sense everything made. Like the place was teaching us what we needed to know."

  The words landed in the passage and sat there, warm and genuine. Garrick heard a man describing an experience that had given his life new purpose. The resonance of conviction, of someone who'd found something worth believing in and held it close.

  The collapse cleared within the hour. Beyond it, the distribution node waited in a junction chamber that radiated heat from every surface. The conduit lines converged on a housing smaller than the irrigation nexus but built from the same dense crystalline material, its faceted surfaces dark and waiting.

  Varen examined the node while Torvin secured the cleared passage and Garrick checked the junction's structural integrity. Lyra moved to the housing and began her assessment, Inspect overlay active, her flute already in her hand.

  "Straightforward." Varen placed his palm against the node's housing, reading the system through contact. "Same as the upper-level nodes. One point controlling three branches. Lyra, if you play through your flute, I'll channel through the housing. Two sources should bring it online faster."

  Lyra positioned herself at the node's southern face, flute raised. Varen stood at the northern face, palms flat against the crystal.

  Lyra played. The melody threaded into the node's architecture, the clean harmonic line she'd been refining since their first activation in the seed processing hub. Her resonance was precise. She felt the system respond, the dormant channels recognizing the input and beginning to wake.

  Varen's resonance joined hers.

  The node flickered. The conduit lines that had been brightening stuttered, the light pulsing unevenly, the system's response fragmenting into incoherence. Lyra felt it as interference, two signals occupying the same space and producing cancellation where there should have been amplification. She adjusted her frequency, searching for the harmonic that would complement Varen's input and resolve the conflict.

  The system rejected them. The node went dark. Conduit lines faded back to dormant amber.

  Lyra lowered her flute. The frown on her face was small and precise, the expression of someone encountering a result that contradicted her understanding.

  "Again?" she asked.

  They tried again. Lyra adjusted her approach, playing a simpler harmonic line, reducing the complexity of her input to minimize potential interference. Varen matched her adjustment with his own resonance, the dual signal flowing into the node together.

  The same result. Flicker, stutter, rejection.

  Varen withdrew his hands smoothly. "The smaller nodes might not be built for two sources at once. The nexus could handle it because it was made to bring everything together. These branch points are simpler. One voice, one direction."

  He placed his palms back on the housing. His resonance flowed into the system alone, golden light with that particular edge spreading through the crystal. The node accepted it. Conduit lines brightened, flowing from amber to gold, the three distribution branches lighting in sequence as the system recognized the signal and responded.

  The junction warmed another degree as the node came online.

  "There." Varen's satisfaction was genuine. The system was working. From his perspective, it was working exactly as intended. "The irrigation network's exterior branch is active. Greenhaven's valley will feel the difference within days."

  Lyra lowered her flute to her side. The explanation was clean. Smaller node, one source instead of two. It made sense on paper.

  It didn't match her experience.

  In Auralis, every system had responded to her resonance. Every node, every lock, every dormant mechanism they'd found. Her input and Cael's had worked together without interference across twelve levels of increasingly complex ruins. The idea that a simple branch node would reject her when the massive irrigation nexus had accepted both of them was backwards from everything she understood.

  She opened her journal and wrote a quick note. Node failed with both of us. Worked with Varen alone. He says smaller nodes need one source. Possible. Doesn't match Auralis. Ask Cael.

  The stylus paused on the page. She closed the journal and returned it to her pack.

  Garrick watched her from across the junction. He didn't understand resonance well enough to follow the technical problem, but he understood Lyra well enough to read the set of her jaw and the particular speed at which she'd written and closed the journal. She was processing something she hadn't resolved. He knew better than to ask about it in front of others. She'd share when she was ready, or she wouldn't, and either way the observation went into the mental ledger he kept about the people around him.

  Torvin was examining the activated conduit lines with appreciative attention. "Beautiful work. The whole branch is online. Varen, the exterior feed is already pushing signal toward the surface channels."

  "The valley's going to bloom." Varen stood back from the node, his expression carrying the satisfaction of someone who'd accomplished something real. "When we come back after the rest day, we'll have measurable results waiting for us."

  The junction glowed around them, warm and gold, another piece of Greenfall's dormant infrastructure brought back to life.

  * * *

  The groups converged at the irrigation nexus in the late afternoon.

  The hub pulsed with the accumulated energy of a system that had been expanding all day. Yesterday it had been a single activated node. Now the distribution network extended through the western branch, the exterior feed pushing enriched signal toward Greenhaven's valley through channels that hadn't carried flow in eight centuries. The temperature in the nexus had risen another degree, the warmth pressing against skin with the steady insistence of infrastructure operating at increasing capacity.

  Mireth and Lyra found each other immediately. The seed vault discovery generated an exchange that moved between excitement and analytical depth with the speed of two minds that had learned to work in the same register. Preservation viability rates. Cataloguing methodology. The connection between the vault's foundation stock and the notation chamber's third-ring agricultural sequences.

  Torvin dropped beside Garrick against the chamber wall. "How was the vault?"

  "Cael and the others handled it. Two security constructs, cleared fast." Garrick rolled his shoulders, working out the heat-stiffness from four hours of labor in a passage that had felt like a forge. "The vault itself is apparently the most important thing we've found so far. Mireth hasn't stopped talking about viability ratings."

  "Sounds like her." Torvin's grin carried genuine affection. "She gets that way when the work produces results. You should have seen her at the first site, when she decoded the initial notation. Didn't sleep for two days."

  Varen stood at the nexus hub, synthesizing the day's progress with his characteristic clarity. Two objectives completed. The irrigation network expanded. The seed vault documented and mapped. A productive day by any measure. The rest day would let them plan the next phase with complete information about what Level 4 contained and where the deeper levels might lead.

  "Good work." Varen looked at each of them in turn. "All of you. We're building something real here."

  Cael stood near the nexus hub's eastern face, one hand resting against the crystal housing. Lumi sat on his shoulder, her markings cycling at the elevated rhythm that had become her constant since they entered the ruin that morning. She hadn't moved to Lyra when the groups reconvened. She'd stayed where she was, pressed against Cael's neck, her small body carrying a tension that hadn't released despite the change in environment, the familiar faces, the warm and active chamber that should have felt like safety.

  He could feel her heartbeat against his collarbone. Fast. Steady, but fast. The heartbeat of an animal that was paying attention to something she couldn't communicate.

  Cael looked across the chamber at the group. Mireth sharing notes with Lyra, both of them animated by the vault's potential. Torvin and Garrick leaning against the wall together, easy and familiar. Ryn standing slightly apart, cleaning her short sword. Varen at the center, the calm axis around which the collaborative energy turned.

  Everything looked right.

  Lumi pressed closer. Her claws found the leather beneath his shirt and held.

  Tomorrow, Cael decided. They'd be in Greenhaven, rested, away from the ruin's resonance. He'd sit down with Lyra and talk through what he'd observed. Three days of faster markings. The Cleansing Field pulse in the vault. The tension that wouldn't release. And the three percent Dissonance reading in a sealed space that should have held none.

  All of it could be explained. All of it probably had explanations that made perfect sense.

  He'd feel better once they'd talked about it.

  The group gathered their equipment and began the ascent. The temperature dropped as they climbed, the deep levels' warmth giving way to the cooler air of the upper passages, the stone releasing its held heat in gradual degrees. Conduit light guided them upward through corridors they'd walked enough times to know by feel.

  Eight people ascending together through the bones of a civilization that had built everything to last. Carrying observations that sat in separate minds, waiting for the conversation that would connect them.

  The evening light waited above.