The relay operator's name was Gett. Fifty-three years old, eleven years running the south sector desk. He handed messages over without looking up and knew, from long practice, which ones not to ask about.
Aion picked up the message at sixth hour.
He read it walking. This was his habit with messages that felt heavy before he opened them, feet moving, body occupied, let the weight travel somewhere before he arrived wherever he was going.
Signed. Three-year contract, northern sector deployment, Korroth. Transfer starts in twelve days. Water filtration allotment finally covered. Mum is stable. I'm alright. Stop doing whatever you're currently doing and try not to get arrested. — B.
The last part was theirs. From when they were twelve, in the processing yard on a wet afternoon when a pipe had been leaking for three days and nobody had fixed it and the floor was slippery and Bode had fallen twice in twenty minutes. On the third fall he'd just stayed down. Aion had stood over him waiting, and Bode had looked up at the ceiling and laughed, and then Aion had sat down on the wet floor too and they'd both laughed for a while at nothing in particular. They'd named the condition, continuing to do the dangerous thing because stopping felt worse than the damage, and then the name shortened over months of use until it was just a letter.
Bode used it when he was scared and keeping the scared pressed flat in his chest where nobody could see it.
Aion had known this for three years. He'd never said so. Saying so would ruin the thing the letter was for.
He folded the message. Put it in his jacket. Walked.
The south sector moved around him the way it always moved at sixth hour, vendors shouldering produce crates toward their stalls, three children sprinting something that looked like an urgent errand but had the particular joy of a game in it, a cluster of older workers heading north for the relay infrastructure shifts that started at seventh. He moved through all of it with his vein dark, the world running at its own pace. Slow, as always, when he let himself notice it. The children running were running at the speed that children ran, wading, from where he stood, through something thick and resistant. He felt this every morning. He never commented on it.
He'd stopped turning the vein on at seven years old, the first week after he understood that switching it on made everything freeze and switching it off let everything move again, and that keeping it on all the time meant living in a room where everyone else was furniture. He'd made the decision the way a seven-year-old made irreversible decisions, completely and without drama, and had not revisited it.
He let the world move. He walked at the world's pace. He ate a piece of bread from Vess's stall, she handed it over without him asking, a morning ritual that had stopped requiring words sometime around his thirteenth birthday, and he thought about twelve days and northern sector and Korroth.
Darin was running force-projection drills when Aion came into the yard.
He stopped mid-drill. This alone told Aion something. Darin had continued a drill when Kervath walked into the yard unannounced for the first time. He'd continued a different drill when a chunk of loose ceiling hit the floor six feet away. The list of things that made Darin stop a drill was short, and whatever was on Aion's face right now had just made it.
He set the rod down.
Aion handed him the message without speaking.
Darin read it standing. Once, straight through. The muscle at the side of his jaw moved, tightened and released, barely visible, the tell that appeared when he was working through something he'd rather not be working through.
He handed it back.
"Northern sector," he said.
"Yeah."
"Heart-type vein." Not a question. He'd trained alongside Bode for years. He'd done the informal assessment himself when Bode was with him, the way he quietly assessed everyone who trained in the yard. "Stage 1 at registration?"
"Stage 1 at registration, managed carefully since." Aion sat on the nearest trough. The stone was cold enough to feel through his jacket. "He's been controlling his output for years. Staying below maximum engagement. He knew the risk profiles."
"He knew the published risk profiles." Darin crossed to his corner, picked up his notation tablet, settled on the overturned processing bucket he used when he needed to think with his hands. He wrote something. Looked at it. Crossed it out. Wrote something else. "The northern sector deployment structure generates sustained high-intensity Thread use. Extended operational periods. Minimal recovery windows. That's not a side effect, that's the mechanism. That's what the northern sector is for."
"I know."
"Stage 1 to Stage 3 under standard conditions runs seven to ten years." He set the tablet face-down on his knee. His voice had gone very flat, not cold, just stripped of everything that wasn't the information. "Under sustained maximum deployment — the quarterly reports from the northern sector use the word yield as a metric. They cross-reference it against deployment rotation length and average expression tier." He looked at Aion directly. "The numbers in the redacted sections line up to roughly fourteen months. Give or take two, depending on individual variance. Stage 1 heart-type vein, northern sector conditions, approaches Stage 3 threshold in fourteen months."
The yard went quiet.
Stage 3 was the threshold. The harvest threshold. In the south sector people called it the assessment threshold, the extraction point, yield, but everyone who knew anything knew what those words meant in practice. What Ironmark did with Stage 3 bearers under contract. What the quarterly reports were actually counting when they used that word.
Bode had signed a three-year contract.
"He knew," Aion said.
"He read the prior reports. He told you he'd read them." Darin put the tablet down on the stone beside him. "He knew something was buried underneath the language. He didn't have the specific number."
"The water filtration."
"His sector's been on restriction for eighteen months. The settlement lost its filtration source when the processing facility closed. Ironmark's family allotment covers full filtration for any active contract holder's household, for the duration of the contract." The flatness in his voice didn't crack. It just sat there, holding everything under it. "He ran the numbers he had. The numbers he had said the risk was acceptable."
"The numbers were wrong, is it realy worth your life?."
"The numbers he had were correct. What he was missing makes them wrong." Darin picked up the tablet again. "We're not going to fix it from here by being angry at what he didn't know."
Aion didn't say anything.
He thought about Bode at a young age, showing up at the yard because someone had told him kids trained there. He'd been worse than Aion at everything to start with. It hadn't bothered him, he just kept showing up, kept running the drills, kept laughing when he fell because he found falling genuinely funny in a way Aion had never fully been able to account for. He had a heart-type vein, which at nine meant he occasionally made things in his immediate vicinity move slightly wrong without meaning to. By fourteen he'd started managing it deliberately. By fifteen he was good at it. He approached his vein the way he approached everything — patiently, with the attentiveness of someone who trusted that understanding something was worth whatever it cost to understand it.
He'd signed a three-year contract because his sector needed clean water.
Aion understood this. He understood it completely, down to the bone.
That was not the same as being alright with it. Those two things didn't touch each other.
"Send a message back," he said. "Through the encoding. Let him know we got it."
"I'll route it through Gett." Darin picked up the tablet, started writing the relay routing note. "What do you want to say?"
"Nothing. Just the letter. He'll know."
The response came back three days later.
Still alright. It's worth it. Be careful with yourselves. — B.
Aion read it twice, then folded it with the first one.
He understood why Bode believed it was worth it.
He was wrong.
Those were two different facts that had no interest in resolving each other.
—-
He trained harder that week than he'd trained in months.
Not recklessly — he wasn't someone who confused destruction with work. But something in his body needed spending on something real when his head was occupied with a problem it couldn't move on yet. Running untill he felt the whole zone was covered. At least it was movement in a direction, even if the direction was only forward.
On the fourth morning, Kervath watched him run for the sixth consecutive time and said, quietly: "Your ankle."
Aion looked down.
The bruising was faint, just under the skin at the left ankle — a blue-grey discoloration, sub-surface, the kind that came from pushing a vein past its comfortable range for too many days running without rest. Not dangerous yet. The thing before the thing, if you kept going.
He had been sixteen years old for six months. He had never once had Set symptoms.
He stared at his ankle for a moment.
"Stop for today," Kervath said.
"It's barely—"
"Stop for today." Not a command. Just where things were. "Come back tomorrow. The problem you're training at isn't one that extra reps fixes."
Aion looked at the impact center in the stone. That quality again. The stone at the center changed instead of cracking — he'd been feeling it through his boots for three years and calling it a force-routing artifact and believing that less every time.
He was becoming less certain what it was.
He stopped for the day.