The classroom was the same one from yesterday but the desks had been pushed back to make room. A table at the front held a row of metal cases, each one latched and labeled with a number. The instructor stood behind the table with her hands flat on the surface, waiting for the room to settle.

  Coin took the second row again, same spot. Consistency bred familiarity, and familiarity bred the appearance of someone who had their life in order.

  "Scanners," the instructor said.

  She unlatched the nearest case and pulled one out. A handheld device, blocky, built from dark metal with a crystal housing on top and a grip at the bottom. It looked like it could survive being dropped off a wall and had been, more than once. She held it up so the room could see.

  "Runs on standard mana crystals. Slot loads from the base. Crystal goes in charged, comes out spent, you swap it. If you can load a lantern you can load a scanner." She demonstrated, one hand popping the base, the other sliding a crystal in. It clicked. A low hum came from inside and the crystal housing on top flickered once and held steady. "Point, press, read. The display will show you contamination signatures if they're present. Green is clear. Anything else, you flag it and call it in."

  She swept the room.

  "You are not interpreting results. You are not diagnosing. You are reading a color and following a chart. The scanner does the thinking. You do the pointing. Questions stay basic or they wait for the manual."

  A hand went up near the back. The skinny kid. Of course.

  "How does the crystal interface differentiate between ambient mana signatures and active contaminant traces? Is it running a baseline comparison or does the detection matrix have preset thresholds?"

  The instructor processed the question and looked at him. She was not impressed.

  "Preset thresholds. It's in the manual. Moving on."

  The skinny kid's hand went down but his mouth kept moving, silent, working through whatever the answer had triggered in his head. The trainee beside him shifted away by an inch.

  "Everyone comes up, takes a scanner, takes a crystal pack. Break one and you're paying for it. You don't want to know what they cost."

  The line formed. Coin joined it. The cases opened one at a time, scanners coming out, crystal packs distributed. The devices were heavy for their size. Coin could tell from the way people adjusted their grips once they had them, recalibrating for weight they hadn't expected.

  Coin's turn came. The scanner sat on the table in front of Coin, bigger than Coin was.

  The instructor paused. Looked at Coin. Looked at the scanner.

  "You're going to need a partner for this."

  OPERATIONAL CONSTRAINT: ACKNOWLEDGED.

  "Pair off," the instructor called to the room. "Grab someone near you. One scans, one gets scanned. Then switch."

  The room shuffled. People turned to whoever was closest, the path-of-least-resistance pairing that happened every time a group was told to pick a partner on short notice. The duelist found someone before the sentence ended. The women's group sorted itself in seconds. Red-beard grabbed the nearest body with the gentle authority of a man who did not ask twice.

  A shadow fell across Coin's desk.

  "Hey."

  The voice came from above and to the left. Coin looked up.

  Dark hair, unwashed, hanging past his jaw in pieces that couldn't agree on a direction. A cloak stitched with extra pockets in places no tailor would put them, bulging with things that clinked when he moved. Chains looped through his belt. Pouches. A smell that wasn't bad exactly but was present in a way smells shouldn't be at this distance. He had the look of someone who owned too many candles and not enough mirrors.

  He was smiling. The smile had too many teeth in it and not enough reason behind it.

  "You're the probability spirit."

  "Coin is Coin."

  "Right. Yeah. Coin." He said the name like he was tasting it. His eyes hadn't left Coin's surface since he'd walked over. "I'm Jerrik. I do ritual work. Hedge discipline, mostly, but I've been studying probability adjacents for — well. A while." He pulled a stool over without checking whether anyone was using it and sat down next to Coin's desk. Close. Closer than the stool needed to be. "This is incredible. I've read about probability spirits but I've never — I mean, you're right here."

  PROXIMITY: EXCESSIVE.

  ENTHUSIASM: UNCALIBRATED.

  "Coin is right here."

  "Can I ask you something?"

  He was going to ask regardless. Coin could see it in his weight shifting forward on the stool, elbows on his knees, already settling into a conversation the other person hadn't agreed to.

  "The class is pairing up."

  "Right, we should — yeah, we should pair up. Obviously. I'll scan you." He was already reaching for his scanner, the one he'd picked up from the table still in its case, and his hands moved over the latches with the fast, habitual dexterity of someone who was good with tools even when he was bad with people. The scanner came out. The crystal went in. He knew the load sequence before the instructor had demonstrated it, which meant he'd either used one before or he'd figured out the mechanism from looking at it once.

  "You've used these."

  "Ritual work," Jerrik said, waving a hand like that explained everything. "Same crystal interface. Different applications. The scan-and-read is basically a simplified version of what a resonance circle does, except the circle gives you the full spectrum and this just — but you don't care about that. You care about the cool stuff. The probability stuff."

  Coin did not care about the probability stuff. Coin cared about getting through the drill and getting Jerrik's scanner pointed somewhere else.

  "So how does it work? The tilting. Is it intentional? Can you aim it? Like if you wanted to shift the odds on a specific outcome, is that a directed thing or is it more of a field effect?"

  "It's complicated."

  "I bet." Jerrik leaned closer. The candle smell intensified. "Because from what I've read, probability manipulation at the spirit level operates on a completely different axis than anything in the standard magical taxonomy. It's not mana-driven. It's not will-driven. It's something else. Something that the literature doesn't even have a good framework for yet, and I've been trying to build one for my thesis — well, it's not a thesis exactly, it's more of a personal project, but —"

  "The drill."

  "Right. The drill." Jerrik held up the scanner and pressed the activation. The housing on top lit up. "Okay. So I'm going to scan you and it's probably going to do something interesting because you're not standard biological material, you're a probability-adjacent entity in a copper housing, and the baseline the scanner uses for comparison is —"

  "Point and press, Jerrik."

  He pointed. He pressed. The scanner hummed.

  The display did something. Whatever it showed made Jerrik's face open up like a window hitting sunlight. His mouth went round. His eyes went wide. He pulled the scanner back and looked at the display, then at Coin, then at the display, and his free hand came up and gripped the edge of the desk.

  A case of theft: this story is not rightfully on Amazon; if you spot it, report the violation.

  "That's — oh. Oh, that's beautiful."

  SCAN RESULT: UNKNOWN TO COIN.

  REACTION: DISPROPORTIONATE.

  "What did it say."

  "Okay, so the baseline comparison the scanner runs is built on a standard biological template, and when it encounters a non-biological entity with an active probability field the resonance pattern doesn't map to any of the preset contaminant signatures, which means the display is throwing a reading that's basically —"

  "Jerrik. Color."

  He looked at the display again. "Purple."

  "Is purple on the chart?"

  "No. Purple is not on the chart. The chart goes green, yellow, amber, red. There is no purple. You broke the chart." The smile was back. Wider now. The teeth situation had escalated. "This is the best day of my life."

  Coin had been called many things across many centuries and breaking a chart was not an accomplishment Coin intended to put on the list.

  The instructor made rounds. She stopped at each pair, checked technique, checked results, moved on. When she reached Coin and Jerrik she looked at the display for a long moment.

  "That's new," she said.

  "Isn't it?" Jerrik was vibrating. "The resonance pattern suggests —"

  "Flag it. Log it. Move to the next exercise." She tapped the scanner once. "And hold the device steady. You're shaking."

  He was. His hands had a tremor that had nothing to do with fatigue. The instructor moved on. Jerrik watched her go and turned back to Coin with the scanner still running.

  "Can I do it again?"

  "The exercise is done."

  "One more pass. Different angle. The probability field might read differently depending on orientation and I want to see if the resonance shifts when —"

  "Jerrik."

  "Right. Sorry. Boundaries." He set the scanner down on the desk. His hands stayed near it. His eyes stayed on Coin. The word boundaries had come out on cue. Jerrik knew when to say it. He didn't know what it meant. "It's just — you have no idea what this means to me. My whole line of research has been theoretical because I've never had access to a live probability source, and here you are, in my class, and I'm sitting right next to you, and the scanner just confirmed that your field is active and measurable, which means everything I've been building on paper actually has a physical basis, which means —"

  "The class is moving on."

  The class was moving on. Pairs swapped roles and the room cycled through the second half of the drill. Coin scanned Jerrik. Green. Jerrik nodded and went straight back to studying Coin's scanner like the device might have retained data from the purple reading.

  They finished before the rest of the room. Most pairs were still fumbling with the crystal load, swapping tips, calling the instructor over. Coin and Jerrik sat at the desk with the drill done and everyone else still catching up.

  Jerrik filled the wait. He talked. Continuous, unrelated to whether anyone was listening. Coin turned toward the room. Scanners humming at different pitches across the desks. Crystals clicking in and out of housing slots. The instructor's boots on stone, steady, circling. Coin tracked all of it and gave Jerrik nothing back. The desk between them could have been empty for all the engagement Coin offered.

  Jerrik didn't slow down.

  DISENGAGEMENT SIGNALS: TRANSMITTED.

  RECEPTION: ZERO.

  The drill wrapped. The instructor called the room back to formation and walked them through checkpoint procedure. The field version of what they'd practiced on each other. How a real post-dungeon inspection worked. Where scanners fit in the exit protocol. How the data logged from scans fed back to the guild's tracking system.

  She took them outside. The yard had been set up with a mock checkpoint, poles and rope marking a lane, a table at the midpoint with a log sheet and a box of flagging tags. Two at a time, one scanning, one walking through. The line moved quick.

  Coin ended up in the middle of the line. Jerrik ended up behind Coin. Coin had not seen him move there. Coin had been watching the drill. And then Jerrik was behind Coin. No announcement. Settled in like he belonged.

  "So the ritual circles I was telling you about —"

  "Coin was watching the drill."

  "The drill is basic. You already know checkpoint procedure, I can tell by how you watch the instructor — you're reading technique, not learning content. That's an experienced operator's focus pattern. Which makes sense because you're what, old? Ancient? I've read conflicting accounts on probability spirit lifespans and some of the literature suggests —"

  "Jerrik."

  "Yeah?"

  "Coin is watching the drill."

  "Okay." He stood there. Quiet for a count of four. Coin counted.

  "But after the drill."

  The line moved. Coin rolled forward. Jerrik followed.

  The drill was fine. Coin went through the checkpoint with a partner from the front of the line who scanned Coin, got purple, looked confused, flagged it, and moved on. Professional. Quick. Everything Jerrik hadn't been.

  When Coin came through the other side of the checkpoint, Jerrik was waiting.

  Not in the line anymore. He'd finished his own run and instead of falling back into the group he'd drifted to the exit side and was standing there with his scanner still in hand and that look on his face that Coin was starting to recognize. He'd decided proximity was the strategy and time was on his side.

  "The purple reading," he said. "I've been thinking about it."

  "Coin hasn't."

  "If the scanner's threshold matrix doesn't include a category for probability-adjacent resonance, that means every probability spirit that's ever been through a checkpoint has either been flagged as anomalous or — and this is the interesting part — the scanner defaulted to the nearest matching category. Which means there might be historical data buried in guild logs that was miscategorized, and if someone went back through the records with the right filter parameters —"

  He was walking beside Coin now. Coin hadn't invited that. Coin was rolling back toward the building and Jerrik had matched pace, adjusting his stride to stay alongside, his body angled toward Coin even while they moved. A dog tracking a hand that might have food in it.

  "That could be your thesis."

  Jerrik's face did something complicated. Several things happened behind his eyes at once and all of them were eager.

  "Coin didn't mean that."

  "No, but — that's actually brilliant? If I could frame the guild's historical scan data as a potential source of miscategorized probability encounters —"

  "Coin was not helping you design a thesis."

  "You kind of were, though."

  ACCIDENTAL ENCOURAGEMENT: DELIVERED.

  RETRACTION: FAILED.

  They reached the building. The group went inside. Jerrik stayed close through the door, through the hallway, close enough that Coin could smell the candle-and-herb mixture that lived in his cloak and was never going to wash out.

  The instructor dismissed them for the afternoon. People scattered. The yard, the mess hall, the barracks. Groups formed on the move, the same clusters from the last few days now solid enough that people didn't have to think about where they were going.

  Coin headed for the yard. Open space. Clear sightlines. Time to process the morning without someone narrating probability theory into Coin's surface.

  Coin found a spot on the low wall that bordered the training yard. Afternoon light, warm stone, the blur of voices across the grounds. A pair sparring in the corner with wooden blades, overseen by no one. A group sitting in the shade comparing notes from the morning's session. The duelist near the equipment shed with the same people orbiting him since the beginning.

  The warmth of the stone was good. The quiet was good. Coin sat and the afternoon stretched out in both directions and nobody was asking about probability fields or resonance patterns or thesis frameworks and for a few minutes the world was exactly the size it needed to be.

  A shadow crossed the wall.

  "Hey, so I was thinking about what you said —"

  Coin didn't respond.

  Jerrik sat on the wall. Not next to Coin. Near Coin. The distinction mattered only to the part of the wall that now had Jerrik on it.

  "— about the historical data, and I went and asked one of the clerks at the records office if guild scan logs are archived and she said they are, going back decades, and I asked if there's a search function by anomalous reading and she said sort of, the index is by date and location but if you cross-reference —"

  He'd done research. In the time between dismissal and now, Jerrik had found the records office, talked to a clerk, and come back with findings. Coin hadn't told him to do this. Coin had specifically told him the opposite of this. And Jerrik had taken Coin's words, ignored the ones that meant stop, kept the ones that could be twisted into encouragement, and built a project on them in the span of an afternoon break.

  "Jerrik."

  "Yeah?"

  Coin let the silence do something. Let it extend past the comfortable margin and into the space where a person with functioning social awareness would notice the gap and recalibrate.

  Jerrik sat through it. He'd outlasted silences before and he wasn't going to start reading them now.

  "Coin is resting."

  "Totally. I'll be quiet." He adjusted his position on the wall. His pouches clinked. Something in his cloak shifted and resettled. "I just wanted to let you know about the records thing while it was fresh. We can talk about it whenever."

  He stayed on the wall.

  He was quiet. True to his word, technically. His mouth stayed closed. His body did not. His weight shifted. His fingers worked at a loose thread on his sleeve. His knee bounced. The silence he produced was louder than most people's conversation.

  VERBAL OUTPUT: CEASED.

  PRESENCE: UNDIMINISHED.

  The yard carried on around them. People went places. People did things. The sparring pair finished and swapped partners. The shade group packed up. The duelist's circle migrated inside when the light shifted.

  Jerrik stayed.

  He'd said he'd be quiet and he was quiet and that was somehow worse. Because the talking Coin could push back on. The talking gave Coin something to refuse. The silence was a thing Jerrik was doing for Coin, a concession, a performance of respect that expected gratitude, and Coin was supposed to appreciate it.

  Coin did not appreciate it.

  The afternoon wound down. The light went gold, then orange, then started to leave. The wall cooled under Coin.

  "Mess call's soon," Jerrik said, standing, stretching in a way that involved too many joints. "You want to walk over together?"

  "Coin will find the mess hall."

  "Cool. See you in there." He headed for the building. Halfway across the yard he turned back. "Same table?"

  He was gone before Coin could answer. Ask a question and leave before the no can land. Its own kind of move.

  Coin sat on the wall and watched the yard empty.

  SOCIAL PARASITE: IDENTIFIED.

  EXTRACTION METHOD: PENDING.