Masking the Signature

The Sixth Sluice smelled of rust and standing water, and under that, faint as a held breath, the mineral sweetness of Ond bleeding up through the flooded foundry's cracked floor. Bramund went down the service ladder two rungs at a time, ribs pulling at every drop, the summons slip folded so many times in his pocket it had started to feel like a coin he couldn't spend.

Three days. One of them already half gone to walking here.

He wanted one thing out of this conversation, and it wasn't sympathy. He wanted Varnsk to open his mouth and teach him how to make a strand lie.

Varnsk was at the flue controls when Bramund came through the low arch, one hand on a valve wheel gone green with verdigris, his crippled leg propped against a fallen support beam like something he'd stopped apologizing for years ago. He didn't turn.

"You walk like a man who already knows the answer and hates it," Varnsk said. "Sit down before your ribs make the decision for you."

"Iron Talon." Bramund didn't sit. "Registry case seven-nine. Three-day forensic summons, opened this afternoon, my name on the cover."

The valve wheel stopped turning. Just for a second — a half-turn short of wherever Varnsk had been taking it — and then it kept going, slow and deliberate, like the old man had decided the pause hadn't happened.

"Congratulations," Varnsk said. "You're famous."

"You taught me a technique with a proscription clause attached to it and never mentioned the clause." Bramund kept his voice flat, the way he'd have priced out a bad debt to a client who still thought he had leverage. "That's not an oversight. That's a cost you decided I'd pay without knowing I was paying it."

"Every technique I teach you is a cost you don't know you're paying. That's the arrangement." Varnsk finally looked at him, eyes pale and unhurried in a face that had long since stopped bothering to arrange itself into anything but contempt. "You want to renegotiate the writ over a wound pattern the boy deserved?"

"I want to know why a proscribed brand is still walking around on a living apprentice's wrist." Bramund held up his right arm, the pale scar tissue of the Blood-Iron mark catching the foundry's low green light. "If the assessor's office pulls the technique's provenance instead of just the wound signature, they don't stop at me. Iron Talon has a preceptor of record still teaching the shear the decree proscribed, doesn't it. And that preceptor isn't hiding behind a name the city's forgotten. He's hiding behind the fact that nobody's proven he's still active."

He watched it land. Not on Varnsk's face — the old man's face gave up nothing it didn't intend to — but in the half-second longer than necessary that he took before answering, and in the way his weight shifted off the bad leg onto the good one, a man bracing before he'd decided he needed to.

"You're guessing," Varnsk said.

"I'm auditing." Bramund let a beat pass, let the water drip somewhere behind them, let the old man sit with it. "The registry knows your crest. What it doesn't have, what it's never had, is proof you're still teaching the shear it proscribed you for. My wound signature is that proof, sitting in a case file with my name on it instead of yours. I'm not the only one with three days on a clock, old man. You just don't have a summons slip to remind you of yours."

Varnsk laughed, the dry, rasping half-laugh Bramund had learned to read as the sound a man made instead of admitting he'd been outmaneuvered.

"A cultivator who audits the blood-tax," he said. "You'd have made a fine clerk, before you made a worse apprentice. Fine. What are you asking for, specifically, since you've clearly drafted the clause in your head already."

"A way to make my strand's output stop matching the pattern on file. Not erase it. Scramble it. Enough that a second look doesn't confirm the first one."

"That's not a technique. That's a weave, and it's not free, and it will not save you twice."

"I only need it to save me once."

Varnsk studied him the way he studied a bad joint before he broke it further on purpose. Then he turned from the valve wheel entirely, favoring the bad leg, and crossed to the drowned workbench where he kept the things he pretended not to need.

"Give me your right hand. Palm up. And don't flinch when I tell you this is going to hurt, because I already know you won't, and I'm tired of watching you perform the part where you don't."

Bramund held out his hand.

·  ·  ·

The weave, when Varnsk finally described it — muttering it more than teaching it, the way a man recites a debt he resents owing — wasn't a new strand and wasn't a new anchor point. It was a corruption pattern laid across the existing one: a second, false current routed through the same clavicle intake and bled out through the palm in a stuttering, irregular pulse, designed to arrive at an inspector's reading instrument a half-beat out of phase with the real signature underneath it.

"Two signals," Varnsk said, pressing two fingers hard into the hollow above Bramund's collarbone, "reading as one blurred one. The examiner sees noise instead of a shape he recognizes. He writes 'inconclusive' instead of 'confirmed.' That's the whole trick. It is not invisibility. It is doubt, manufactured at the exact moment someone goes looking for certainty."

"How long does the false current hold?"

"As long as you can keep feeding it without your real strand collapsing under the split load. Which is to say, not long, and it will cost you every time you use it, and it gets more expensive to hide with practice, not less, because the assessor's instruments learn what noise looks like too." Varnsk's grip tightened on his collarbone until it felt less like instruction and more like threat. "Now stop asking me questions and start routing it, before I decide teaching you was the expensive mistake."

The first attempt felt like nothing. Bramund pushed a second thread of Ond through the clavicle anchor the way Varnsk described, split the flow toward his palm, and for three full seconds thought he'd done it cleanly.

Then his palm caught fire.

Not literally. No flame, no smoke. But the skin across his palm and up into his fingers went from warm to scalding in the space of a breath, a burn from the inside, the false current fighting the real one for the same narrow channel of bone and not finding enough room for both. He didn't scream. Screaming adds no value to the transaction, he'd told Varnsk once, over a torn knuckle and a writ, and he'd meant it as tactics, not as a promise, but the promise held anyway, through gritted teeth, through the smell that reached him a half-second later, faint and wrong, like a coin left too long on a hot stove.

"Kill the flow," Varnsk said, not moving to help him. "Now. Before it climbs past the wrist."

Bramund cut it. The burning didn't stop so much as recede, pulling back down into his palm and staying there, a blister already rising along the meat of his thumb, the skin gone tight and shining.

"You didn't split the current evenly," Varnsk said, as if reporting weather. "You gave the false signal too much of the real channel's width. Do it again. Narrower this time. Think of it as a smaller pipe running parallel to a larger one, not a second pipe trying to replace the first."

"You could have told me the width before I tried it."

"I could have. I find you learn the arithmetic faster when it's written on your palm instead of in my mouth."

The second attempt blistered a different patch of skin, lower on his palm, closer to the wrist. The third held for almost six seconds before the burn forced him to cut it. By the fourth, sweat running into his eyes and his hand shaking in a way he refused to look at, he finally felt it — the false current threading itself alongside the real one instead of fighting it, thin and irregular and deliberately wrong, like static laid over a clean signal.

"There," Varnsk said. "That's the shape of it. Hold it."

Bramund held it for four seconds, then five, his jaw locked, the blisters on his palm splitting open along their edges and weeping where his fingers curled tight around nothing. When he finally let it go, his hand didn't so much relax as stop, the muscles simply refusing to do anything else.

Varnsk crouched — awkwardly, favoring the bad leg — and turned Bramund's palm over to inspect the damage with the flat, unsentimental attention of a man checking a tool for wear rather than a student for injury.

"You'll carry burn scars on that palm for the rest of your life," he said. "Every time you use the weave, you reopen them. That's the price of a technique that has to live in the same bone as the one it's hiding. There is no version of this where it doesn't hurt. There is only the version where you decide the hurt is cheaper than the summons."

"It is."

"Then we're agreed, which brings us to the second price." Varnsk straightened, releasing his hand. "The Kobal distillate that kept your marrow from splitting when you bound the second strand was a loan against your purse and salvage, not a gift. This weave is worse. I'm not teaching a man to falsify a forensic reading for free, and I'm certainly not teaching him to do it twice without collecting something against a third."

"Name it."

"A standing lien. Ten percent of every purse, every salvage claim, every bounty you collect from this bracket forward, until I release it — which I will do when I decide the exposure to me has ended, and not one purse before." Varnsk's mouth pulled into something that wasn't quite a smile. "You'll notice I'm not asking you to sign anything in blood-iron tonight. I trust you to keep this one on your own, since you're clever enough to understand what happens to a debtor who tries to weasel out of an apprenticeship writ."

"You mean you don't want a contract that could be read by the same assessor's office you're trying to stay out of."

"I mean what I said." The dry half-laugh again, quieter this time. "You really would have made a fine clerk. A shame the trade doesn't pay in strands."

Bramund flexed his ruined hand, feeling the blisters crack further, and didn't answer the jab. Ten percent, indefinite, was a worse number than he'd walked in willing to pay — but it was a number, which meant it was survivable, which meant it went in the same mental ledger as the twenty-five percent already bleeding out to the same man and every other debt he was carrying toward the day he finally stood in front of whoever was holding Eirund. One more line. He could live with one more line.

"How many times will it actually hold," he asked, "before the noise stops reading as noise?"

Varnsk's amusement drained out of his face like water finding a lower level.

"Once, cleanly. I told you that before you started burning your own palm to prove you could learn it anyway." He looked at Bramund the way he'd looked at the valve wheel, a mechanism he understood completely and trusted not at all. "And it doesn't catch at once, either. The real signature shows for a heartbeat before the noise covers it. Anyone watching close, watching for it, will see the flicker before the doubt sets in. The first time an assessor reads it, he gets doubt instead of certainty, and doubt is enough to make him move on to easier cases. The second time anyone with real training reads it, the same assessor, or a sharper one, or the same one who's had three days to think about what inconclusive usually means, he isn't confused anymore. He's suspicious. And suspicious men with forensic authority in this city don't write summonses. They write warrants."

"Then I use it once. When it matters most."

"You use it once, when it matters most, and you pray to whatever you pray to that your summons in three days' time is the only time it needs to matter." Varnsk turned back to the valve wheel, done with him, already moving on to whatever he'd been doing before Bramund interrupted his evening. "Because you don't get a second pass, boy. Not from the weave, and not from me. Spend it wisely, or don't bother spending it at all."

Bramund flexed his ruined hand once, testing the fist he could still make of it, and weighed the summons slip in his pocket against every other place he might have burned this trick instead — a rigged bout, a bribed proctor, some later trap he couldn't see yet from here.

"The assessor gets it," he said. "Nothing else. Not the bracket draw, not a bad seed in the Second Fathom, nothing. Just him, just once, just in three days."

Varnsk didn't look back from the valve wheel. "Then you'd better hope nothing else comes looking for you before he does."