Havel called in sick, which meant Voss needed a body.

  Marcus found this out at the east yard, standing with his clay water bottle in one hand and his gloves in the other, when Voss appeared with his clipboard and the particular expression of a man recalculating a schedule that had already been finalized.

  “Cole. You’ve been here, what, three weeks?”

  “About that.”

  “You can read?”

  “Yes.”

  Voss looked at him like this was a claim that required independent verification but wasn’t worth the effort to test. “Lira’s doing an inspection sweep of the lower eastern section today. Six-hour route, maybe seven. She needs someone to carry the log and mark what she calls out. Think of it as hauling, but with a pencil.”

  Marcus glanced at Lira, who was leaning against the tool shed with her arms crossed. She gave him a look that was equal parts encouragement and warning, the kind of face a person makes when they’re volunteering you for something they think you’ll be good at but that you’ll also hate.

  “Sure,” Marcus said.

  Voss made a mark on his clipboard. “Renner, you’re with Tren and Kael on the upper junction. Same work as yesterday. The feeder’s silting up again.”

  Renner took this news with his usual expression of absolute nothing and walked toward the tool shed.

  “You’ll need these.” Lira handed Marcus a leather satchel that weighed more than it looked. Inside was a bound ledger, already half-full of entries in several different handwriting styles, a set of wax markers in four colors, and a flat wooden board that served as a writing surface. “Red means structural concern. Yellow means maintenance due. Blue means flow irregularity. Green means fine.”

  “What if something’s more than a concern?”

  “Then I stop walking and start swearing and you write down whatever I tell you.” She tightened the strap on her own bag, which clinked faintly with tools. “But that probably won’t happen. The lower eastern section is boring. That’s why we inspect it once a month instead of once a week.”

  They left the yard and headed south along the canal’s service path. The morning was cool, the sky a flat white that couldn’t decide between overcast and clear. The canal ran to their right, its surface catching what little light there was and holding it in dull ripples. Foot traffic was sparse this early. A woman pushed a cart loaded with ceramic pots up the sloped path ahead of them, the wheels grinding against the stone. Somewhere below, in the canal itself, a barge horn sounded, deep and brief.

  “The lower eastern section runs from Lock Seven to the river junction,” Lira said as they walked. She wasn’t lecturing. She was orienting, the way a foreman walks a new hire through a job site. “Twelve stations. Each one has a flow valve, a pressure housing, and a structural checkpoint. We inspect the valve mechanism, check the housing for wear, and note anything that’s changed since the last pass.”

  “How do you check the housing?”

  She held up her hands. “Same way I do everything.”

  They reached Lock Seven after about fifteen minutes. It was a larger structure than the junctions Marcus had worked on, a stone chamber built into the canal wall where the water level stepped down by roughly four feet. The lock mechanism was partly visible from the service path: heavy iron gates, a winch assembly, and a series of channels that diverted water during the cycling process. A lock operator was on duty, a heavyset human woman who sat on a stone bench near the winch with the patient stillness of someone whose job involved long stretches of nothing punctuated by brief stretches of not-nothing.

  “Morning, Dalla,” Lira said.

  The operator looked up. She was older than Lira by twenty years, with the same dark hair gone mostly grey and the same build, small and wired tight, though her hands were thicker and moved with the deliberate care of someone managing joint pain. Her face was Lira’s face with decades added to it, the resemblance so obvious that Marcus felt stupid for not guessing before Lira had even said the name.

  “You’re early,” Dalla said.

  “I’m on time. You’re here too early.”

  “I’m always here.” Dalla looked at Marcus. Her gaze was Lira’s gaze stripped of warmth and seasoned with the particular scrutiny of someone who had been evaluating people for longer than some of them had been alive. “New one?”

  “Marcus Cole. He’s carrying the log today.”

  “Can he write?”

  “Voss asked the same thing.”

  “Voss is right to ask. The last one who carried the log wrote like he was trying to communicate with the dead through penmanship.” Dalla shifted on her bench and something in her shoulder clicked audibly. “You’re starting at Seven?”

  “Working down to the river.”

  “Good luck with Nine.”

  Lira paused. “What’s wrong with Nine?”

  “Nothing.” Dalla said this in the tone of someone for whom the word clearly meant the opposite. “It’s just been singing.”

  “Singing.”

  “The housing. Started about a week ago. Low sound, like a hum. Comes and goes. I mentioned it to the shift supervisor. He said he’d note it.” She looked at the canal with an expression that suggested the shift supervisor’s noting system was not something she placed great faith in. “I’ll be here when you come back through.”

  They walked on.

  Marcus waited until they were out of earshot. “Your mother?”

  “My mother.” Lira didn’t elaborate, which was unusual for her. After another few steps she said, “She was supposed to retire two years ago. The canal authority offered a pension that would have covered her rent if she also stopped eating. So she took a part-time lock operator position instead.” A beat. “She’s sixty-three and she’s sitting on a stone bench at dawn because the people who decide pensions have never sat on a stone bench at dawn.”

  Marcus didn’t respond to that. There wasn’t anything to say that wouldn’t sound like either sympathy or commentary, and Lira didn’t seem to want either. She wanted to be angry for a moment, and then she wanted to do her job. He could respect that.

  Station One was at the base of Lock Seven’s downstream side. Lira crouched beside the flow valve, a circular mechanism about two feet in diameter set into the canal wall at water level. She pressed both palms flat against the stone housing around it and closed her eyes.

  Marcus watched. He’d seen her do this a dozen times now, but this was different. At the junction work sites, she’d been fixing things. Here she was listening. Her stillness was deeper, her breathing slower. She stayed like that for nearly a minute.

  “Mark it green,” she said, opening her eyes. “Valve’s cycling clean. Housing is solid. Flow is normal for the season.” She stood and flexed her fingers. “Write that down. Date, station number, green mark, and the note about seasonal flow.”

  He wrote it down. His handwriting was not beautiful, but it was legible, which apparently put him ahead of his predecessor.

  They moved to Station Two. Same process. Lira touched the housing, listened, called out her assessment. Marcus recorded it. Green.

  Station Three was yellow. “Maintenance due on the valve pivot,” Lira said, frowning at the mechanism. “It’s not sticking yet but the resistance is building. Canal moss in the housing, probably. Needs a cleaning crew in the next two weeks or it’ll jam the way the upper junction did.”

  He marked it yellow and wrote the note. They kept moving.

  The work had a rhythm to it, and Marcus fell into it the way he fell into any structured process. Walk, stop, assess, record, walk. The stations were spaced at irregular intervals along the canal wall, clustered tighter where the infrastructure was older or more complex, spread wider where the sections were newer. Lira moved between them with the ease of someone walking through rooms she’d grown up in. She didn’t consult a map. She knew where everything was.

  Between stations, she talked. Not constantly, and not about nothing. She pointed out features of the canal that Marcus hadn’t noticed from the hauling crews. Overflow channels built into the wall every hundred yards, designed to bleed excess water during flood conditions. Maintenance hatches that gave access to the substructure below the canal bed. Marker stones carved with symbols that indicated the age and builder of each section.

  “This part’s original construction,” she said, tapping a section of wall where the stone was darker and smoother than its neighbors. “Elven-era. Three hundred years old, maybe more. See how the joints are tighter? They didn’t use fill. The stone was fitted and then bound with channeled mana. It’s part of the canal the way your bones are part of your body. You can’t remove a piece without the rest of it feeling the loss.”

  Marcus looked at the stonework. The joints were nearly invisible, the blocks fitted so precisely that a knife blade wouldn’t find purchase. The newer sections on either side were competent but visibly different, the joints wider, sealed with the grey fill paste he’d spent his first week hauling buckets of.

  “How much of the canal is this old?”

  “The lower third, roughly. Everything from Lock Seven down to the river junction. It’s the foundation. Everything above it was built later, on top of it, drawing from it.” She started walking again. “My mother says the old builders over-engineered everything by a factor of ten. The newer builders engineered to budget.”

  He didn’t need to ask which approach she preferred. The answer was in her voice.

  The author's narrative has been misappropriated; report any instances of this story on Amazon.

  Station Nine was different.

  Marcus heard it before Lira stopped walking. A low sound, not quite a hum and not quite a vibration, somewhere between the two. It was coming from the stone housing around the flow valve, a structure identical in design to the others they’d checked but doing something none of the others had done.

  Lira crouched beside it and placed her hands on the stone. This time she stayed longer. Her fingers shifted positions twice, three times, moving to different points on the housing the way a doctor moves a stethoscope. Her jaw tightened.

  “What color?” Marcus asked, pen ready.

  She didn’t answer immediately. When she stood, she flexed her hands and shook them out, the way you shake out a limb that’s gone numb.

  “Red,” she said. “Mark it red.”

  He marked it. “Notes?”

  “Housing resonance. Intermittent harmonic in the flow valve housing, consistent with pressure differential across the valve seat.” She spoke precisely, her voice stripped of its usual warmth, professional in a way that meant she was thinking hard. “The valve is open and functioning but the flow on the downstream side doesn’t match the upstream side. Something is absorbing or redirecting pressure between the valve and the next station.”

  Marcus wrote this down, but the words she was saying had already triggered something in the back of his brain that had nothing to do with transcription. Pressure differential across a valve seat. Flow mismatch between upstream and downstream. A housing that resonated because the forces moving through it were uneven.

  He knew this. Not this specific mechanism, not this specific system, but the pattern. He’d seen it in water mains, in HVAC systems, in any pressurized network where flow was supposed to be uniform and wasn’t. When one node in a system carried a load that didn’t match its neighbors, the stress showed up as vibration. Harmonic resonance. The system singing because it was straining.

  He looked at the valve housing and felt the hum through the soles of his boots, faint but present, the stone transmitting what the water carried.

  And then he felt something else.

  It was the sensation from the upper junction, the one from the rain-day, but sharper. Not a vague pressure below the threshold of naming. This was specific, directional. A current that wasn’t water, moving through the stone housing and into the canal wall and away, downstream, toward something that was pulling at it. The flow valve was a gate, and something on the other side of it was drawing harder than it should have been.

  The sensation lasted maybe three seconds. Then it faded, or his ability to perceive it faded, and he was standing on the service path looking at a stone mechanism that hummed faintly in the morning air.

  Text appeared in his vision. Small, clean, clinical.

  Mana sensitivity: Threshold exceeded. Passive environmental awareness confirmed.

  It stayed for four seconds. Then it was gone.

  Lira was watching him. Not with suspicion. With the careful attention of someone who had just seen a person react to something invisible.

  “You felt that,” she said. It wasn’t a question.

  He considered lying. It would have been easy. He could have said he was just listening to the hum, just paying attention to the housing the way she’d taught him. But Lira had spent her entire life feeling what the canal carried, and she’d been watching his face when the sensation hit, and lying to someone who could read flow through solid stone seemed like a waste of both their time.

  “I don’t know what I felt.”

  “Yes you do.” She said it without heat, without wonder, without any of the weight that a moment like this might have carried in a different kind of story. She said it the way she’d say the valve’s sticking again. A fact about the infrastructure, noted and filed. “You felt the draw. Something downstream is pulling too hard and this housing is catching the strain.”

  He looked at the valve. The hum continued, quiet and steady.

  “How long has it been doing this?”

  “My mother said a week. But Dalla notices things early. Could have started before that and the day crew wouldn’t have caught it. They don’t touch the housings.” She pulled a wax marker from her bag and made a small red X on the stone beside the valve. “The question isn’t how long. The question is what’s pulling.”

  “You don’t know?”

  “If I knew, I’d fix it.” There was an edge to her voice that wasn’t directed at him. It was the frustration of a craftsperson facing a problem she could diagnose but not resolve. “Station Nine’s been steady for years. Something changed in the last few weeks. I’ve filed two reports about flow irregularities in this section. Both came back marked reviewed. Which in canal authority language means someone read the first sentence and put it in a drawer.”

  Marcus wrote the red mark notes. He wrote them carefully and completely, because that was the job, and because writing gave him something to do with his hands while his brain processed what had just happened in the last fifteen seconds.

  He had felt the mana flow. Not as background noise, not as the vague threshold-adjacent flicker the system had noted at Grainer’s inn. He’d felt it as information. Direction, intensity, imbalance. The way you feel a draft in a room and know which window is open without looking.

  He didn’t know what to do with that. So he wrote his notes and followed Lira to Station Ten.

  The remaining stations were uneventful. Ten through Twelve came back green, the last three being newer construction that Lira checked quickly and without the deep listening she’d given the older sections. The river junction itself was a broad, open structure where the canal met the river proper, regulated by a set of gates that were maintained by a separate crew. Lira noted their condition from the service path but didn’t approach.

  “Not our section,” she said. “The river crew handles the junction gates. We just note whether they look like they’re doing their jobs.”

  “Do they?”

  She looked at the gates. “They look fine from here. Whether they’re actually fine is someone else’s problem.”

  They ate lunch sitting on the canal wall near Station Twelve, legs dangling over the water. The river was visible from here, wider and slower than the canal, its surface dark and flat in the midday light. The smell was different this close to the junction, less stone and minerals and more mud and vegetation, the organic smell of moving water meeting standing water.

  Lira ate her usual spiced wrap. Marcus had flatbread from Pol’s cart. They sat in a comfortable silence for a few minutes, the kind that doesn’t need filling.

  “So,” Lira said eventually. “The housing at Nine.”

  “What about it?”

  “The junction you’ve been staring at since your first day. The one that carries load differently. It’s three stations upstream from Nine.”

  Marcus looked at her.

  “I told you. I read everyone’s intake slip.” She picked something green out of her wrap, examined it, and ate it anyway. “I also watch people. You’ve been looking at that junction every time we pass it. You don’t say anything, but you slow down. You tilt your head the way my mother tilts hers when she’s listening to a lock that’s about to stick.”

  He didn’t deny it. “The junction’s carrying more than the ones around it. Or carrying the same amount differently. I noticed it on my first shift, and it’s been consistent every time I’ve passed it since.”

  “I know.”

  “You know?”

  “I’ve known for two months. I filed a report.” She took another bite. “It came back marked reviewed.”

  The frustration from earlier was gone. What replaced it was something flatter and more tired. The voice of a person who’d been saying the same thing to the same people for long enough that the saying had worn smooth, like a stone in a river.

  “My mother filed reports about junction degradation in this section for six years before she retired from her inspection role. She has copies. A box of them, under her bed, like a woman keeping love letters from someone who never wrote back.” Lira brushed crumbs off her trousers. “The lower eastern section is boring. That’s why it gets inspected once a month. But boring doesn’t mean fine. It means nobody’s looking hard enough to find the problems.”

  Marcus ate his flatbread and thought about normalized degradation. About systems that looked stable because everyone had adjusted their baseline expectations downward, year by year, until the abnormal became normal and the warning signs became background noise.

  He thought about Station Nine, humming in its housing. About the junction three stations upstream that handled its load wrong. About the draw Lira had identified, something downstream pulling harder than it should.

  He thought about how, on Earth, the phrase it’s always been like that had preceded every infrastructure failure he’d ever studied.

  “It’s been like that for years,” Lira said, as if reading his mind. “The section’s stable. It works. The old construction is strong enough to absorb a lot of strain. That’s what everyone says, and they’re not wrong, exactly. The elven-era foundations are over-built. They can take more punishment than anyone alive has ever seen them absorb.”

  She paused.

  “But they’re not infinite.”

  The walk back was quieter. They retraced the route, passing each station in reverse. Marcus found himself paying attention differently than he had on the way down. On the first pass, he’d been learning the rhythm of the inspection, watching Lira, recording data. Now he was watching the infrastructure the way he’d once watched highway overpasses on his drive through Columbus. Looking for the cracks. Counting the patches. Trying to feel the load.

  At Station Nine, the hum was still there. He paused, listening. Lira paused with him.

  He put his hand on the stone housing. The surface was cool and faintly damp from canal spray. The hum was transmitted through the stone as a vibration he could feel in his fingertips, steady and low.

  And underneath it, beneath the physical vibration, he felt the other thing again. The pull. Fainter this time, or maybe his perception was less sharp than it had been an hour ago. But it was there, a directional pressure in something that wasn’t water and wasn’t air and didn’t have a name he was equipped to give it.

  He took his hand away.

  Lira was watching him again with that same careful, unimpressed attention. She didn’t ask what he’d felt. She didn’t need to.

  “You should talk to my mother,” she said.

  “About what?”

  “About what you’re starting to feel. And about the box of reports under her bed.” She started walking. “Dalla’s been waiting thirty years for someone else to notice what she noticed. She’s not going to be patient about it.”

  They returned to Lock Seven as the afternoon wore into evening. Dalla was still at her bench, or was at her bench again. She looked at Lira. Lira looked at her mother. Something passed between them that was briefer than language and more efficient.

  “Nine?” Dalla said.

  “Nine,” Lira confirmed.

  Dalla nodded, slowly, the way you nod at news you expected but were hoping you wouldn’t get. She looked at Marcus. The scrutiny from the morning was still there but it had shifted, narrowed, becoming less about assessment and more about calculation. She was deciding something about him.

  “You can feel the canal,” she said. Not a question. Not quite an accusation. An observation, delivered with the flat pragmatism of a woman who had been reading infrastructure for longer than Marcus had been alive.

  “I don’t know what I can feel.”

  “That’s the right answer.” She looked at the canal. The water was darker in the evening light, catching the amber of the first street lamps coming on along the path. “Come by on your day off. I’ll be here. I’m always here.”

  He said he would. Lira handed the satchel and its ledger to Dalla, who would pass it to the next shift’s inspector, and they walked back to the east yard in the last of the daylight.

  Voss was gone. The yard was empty except for Kael, who was sitting on the bench reading his book. He looked up when they arrived.

  “How was the inspection?”

  “One red,” Lira said. “Station Nine.”

  Kael closed his book. The gesture was small but deliberate, the kind of pause that meant the information had landed. “The singing housing.”

  “You’ve heard about it?”

  “Dalla mentioned it to my foreman. My foreman said the old construction handles its own problems.” His voice was even, but the pause before handles its own problems carried a weight that said more than the words did. “I believe his exact phrasing was that the elven sections were built to last.”

  “They were,” Lira said. “Three hundred years ago. For three hundred years ago’s load.”

  Kael considered this. Then he opened his book again, which was his way of saying he agreed but had nothing useful to add to a problem that agreement couldn’t solve.

  Marcus collected his water bottle. The evening was cooling, the canal’s rhythm shifting into its slower night cycle. He could hear it differently now than he had this morning. Not better, exactly. More specifically. The sounds of water moving through stone carried information he was only beginning to decode, and the information was not reassuring.

  He walked back to Grainer’s. He didn’t stop at Sable’s shop. He wasn’t in the mood for observation, hers or his own.

  The stew was the same. Grainer was the same. Room six was the same. The crack in the ceiling had not moved. He lay on his back and listened to the canal through the wall and thought about Station Nine, humming in its housing three hundred years after someone built it to last.

  It was lasting. That was the thing. The old construction was holding, absorbing strain that the newer sections couldn’t match, compensating for a system that had grown beyond its design parameters. It was doing exactly what it was built to do, and it was doing it under conditions its builders never anticipated, and eventually, even the best engineering meets its limits.

  He’d filed reports too, back in Columbus. Not about canals. About load-bearing walls and foundation cracks and stormwater systems that were handling twice their designed capacity because the city had grown and the infrastructure hadn’t kept up. He’d filed them carefully, with documentation, with photographs, with calculations showing exactly when the margins would run out.

  They’d come back marked reviewed.

  He’d taken the warehouse job three months later.

  He closed his eyes. The canal ran. The lamps burned. Station Nine hummed in the dark, and the system that had noted his existence with clinical brevity now had one more data point about what he could perceive, filed and catalogued and meaning nothing to it and everything to him.

  Somewhere between awake and asleep, he thought he could still feel the pull. Downstream, faint, steady. Something drawing on the system harder than it should.

  He slept, and the canal kept running, and the old stones carried their load in silence.