The regulator gallery door was closed, and Neri did not like the look of it.
Iven held the lantern while she examined the latch. Above them, Elian had gone through the archive’s front door with an authorization that named him alone. The clerk had warned that an assistant required separate approval. Sera had gone to Brell’s chamber, where the frame had shifted beyond the third mark overnight.
“Before you ask,” she said, “I don’t like it either.”
“I wasn’t going to ask.”
“You were making the face.”
“What face?”
“The one where you decide something is necessary and then look surprised when someone objects.”
He considered that. “It’s a useful face.”
“Not for the person watching it.”
They had reached the lower gallery by the repaired launcher route. Tavin positioned Cage Seven at the far platform again; Iven crossed, secured the heavier rope, and checked the platform bolts. Neri followed with a tool roll. Tavin stayed with the cage. Kesh waited on the near deck with a signal lamp. Sera had gone to Brell’s chamber, where the frame had shifted beyond the third mark during the night.
The service door was still locked from inside. Iven had copied its label but had not forced it. This time Neri removed the inspection panel and studied the maintenance latch.
“It’s not a lock for keeping people out,” she said. “It’s a latch for keeping the door closed against pressure from this side.”
“Can you open it without bending anything?”
“I can try.”
She slid a thin strip through the panel and lifted the latch. The door moved inward with a slow scrape. Neri caught it before it struck the wall.
Beyond lay a short passage with a grated floor. A pipe ran overhead, insulated in cracked cloth. At the far end, a stair rose toward the archive level. A second passage led down into a warmer space where a mechanical pulse repeated at uneven intervals.
Iven held the lantern high. “Which way?”
“Up,” Neri said. “Unless you’re planning to explain to Brell why we explored a basement instead of looking for the record.”
They climbed. The stair ended at a door with a small wired-glass window. Through it, Iven could see shelves and a table. No one occupied that part of the archive.
He knocked softly.
Neri stared at him. “We’re using the service route because we don’t have permission, and you’re knocking?”
“I’m checking whether someone is on the other side.”
A voice answered. “Who’s there?”
Iven looked at Neri. She looked back, unimpressed.
“Elian’s assistant,” Iven said.
The door opened a few inches. Elian stood behind it, his expression caught between relief and disbelief.
“The clerk is in the catalog room,” he whispered. “You weren’t supposed to come up.”
“We weren’t sure you’d find the volume.”
“I found it.”
“Good. Can we see it?”
“No.”
Neri folded her arms. “That’s clear.”
Elian glanced toward the other room. “She’ll hear us. The book has to stay on the table. If she finds you here, she’ll close the consultation and take it away.”
Iven lowered his voice. “Then tell us what you found.”
Elian hesitated. “The wash-platform record points to a regulator maintenance ledger. It lists the mounting number from Brell’s chamber. There are entries for a suppression adjustment and a tissue draw.”
The words sounded too ordinary for what they described. Adjustment. Draw. A clerk could write them in a column without ever seeing the wall beneath the pipe.
“Does it explain what they mean?” Sera would have asked. Iven asked it for her.
“Not in the section I’ve seen. There are references to diagrams in a second volume. The clerk says I may consult it only if the first one establishes a need.”
“And does it?”
“I think so. She hasn’t decided.”
Neri leaned toward the wired glass. “Can you copy the entries?”
“I can copy what I’m permitted to consult.”
“Then do that,” Iven said. “We’ll check the equipment below against the mounting number. If it matches, you have a reason to ask for the diagrams.”
Elian looked at him. “Don’t remove anything.”
“We’re not here to steal a book.”
“You came through a locked service door.”
“A closed service door,” Neri corrected. “The latch wasn’t locked.”
Elian closed his eyes briefly. “That distinction will comfort the clerk.”
He returned to the table. Iven and Neri descended toward the lower passage, leaving the service door as they had found it. The uneven mechanical pulse grew louder. Warm air carried the smell of oil and something sharper, like the inside of a cut stem.
The passage opened into a gallery above a large machine. Pipes entered it from three directions. A heavy frame supported a row of cylinders connected by rods. Below the gallery, a pale surface curved beneath the machinery, partly hidden by a metal casing. A thin line of dark fluid ran through a transparent inspection tube into a covered reservoir.
Iven stopped at the rail. “That’s not ordinary heat circulation.”
“No,” Neri said. “But don’t decide what it is before we see the labels.”
A brass plate on the nearest cylinder bore a number. Elian’s note had named the same mounting series. Iven copied it. A second plate carried a warning about pressure and an instruction to keep the lower valve closed during service.
The machine pulsed again. One rod drove inward. The inspection tube darkened, then cleared.
Neri looked at the casing below. “That frame is attached to living material.”
“Can you tell what it does?”
“I can tell where it puts force. The cylinder presses the lower plate; the return rod pulls it back. The tube carries something away.”
“Suppression adjustment and tissue draw.”
“Those are the ledger’s words. We haven’t seen the ledger.”
He nodded. She was right to keep the distinction. A number on a plate and a phrase in a volume were a match, not a complete explanation.
A worker appeared at the far end of the gallery carrying a toolbox. He stopped when he saw them.
“Who are you?” he asked.
“Neri Quill. I’m inspecting the frame.”
“Who sent you?”
“Elian Veyr is consulting the maintenance record upstairs. The frame number matches a damaged mounting on the heat line.”
The worker looked from Neri to Iven. “That doesn’t answer who sent you.”
“No,” Iven said. “It doesn’t.”
The worker set down his box. He was a broad man with a burn scar along one wrist. He wore no uniform beyond a work apron and a badge identifying him as a regulator mechanic.
“I’m Harl,” he said. “You aren’t supposed to be here.”
“We know.”
“Then you should leave.”
The machine pulsed. A rod struck its guide with a dull knock. Harl’s head turned sharply. He went to the nearest inspection panel and opened it.
“That’s new,” he said.
Iven watched the rod. It had a small sideways movement at the end of each stroke. The guide block was worn, and one fastening bolt had backed out far enough for a thread to show.
“You’ve got a loose bolt,” Iven said.
“I can see it.”
“Do you have a way to stop the stroke?”
“Not without the upper control room.”
The rod knocked again. Harl reached for the bolt, then withdrew his hand as the mechanism moved. The space was too tight to tighten it safely between strokes.
Neri examined the frame. “If the guide comes off, what happens?”
“The rod can jam. The cylinder keeps pressure until the relief opens.”
“And if the relief doesn’t open?”
“It should.”
“That wasn’t my question.”
Harl looked at the pressure gauge. Its needle trembled near the upper end of the marked range. “If it doesn’t, the casing takes the load.”
The pale surface beneath the casing moved slowly, independent of the machine. Iven thought of the wall pressing against Neri’s brace and the two sites shifting at nearly the same time.
“Can you call the upper room?” he asked.
Harl pointed to a speaking tube beside the panel. Iven lifted its cover and spoke into it. A voice answered after a delay. Harl gave his name and requested a controlled pause. The voice said the pause had to be authorized.
“How long?” Harl asked.
“I don’t know.”
The rod knocked again. The loose bolt turned another fraction under vibration.
Neri placed her tool roll on the gallery floor. “I can brace the guide without touching the rod. Iven can hold it while I tighten the bolt.”
Harl looked at the open panel. “If the guide shifts toward you, take your hand out.”
“That’s a good rule.”
He did not ask them to leave again. He positioned himself at the relief wheel, where he could open it manually if the pressure rose. Iven seated plate brace and clamp bridge. He used the brace to protect his forearm from the moving rod and the clamp to hold the guide against the frame. Neri reached in with a short wrench and turned the bolt between strokes.
The first turn went smoothly. The second caught. She withdrew the wrench before the rod returned, changed its angle, and tried again.
“Half a turn,” she said.
The pressure gauge climbed. Harl cracked the relief wheel. A hiss came from the lower pipe, and the needle dropped slightly.
Neri tightened the bolt. “Done.”
Iven held the clamp until she withdrew her hand. Then he released it. The guide remained against the frame. The next stroke passed without the sideways knock.
Harl closed the relief. “You can leave now.”
“You’re welcome,” Neri said.
He looked at the tightened bolt. “Thank you. You still can’t be here.”
That was fair. Iven copied the pressure reading and the plate number into his notebook, then added the time and Harl’s name. He showed the entry to the mechanic.
“I don’t want my name on your report,” Harl said.
“You were responsible for the equipment. If we write that we saw it, someone may ask who was here.”
Harl considered that. “Write that I requested a pause and didn’t get an answer in time.”
Iven did.
They returned to the stair. At the upper door, Elian met them with several pages of notes. The clerk stood behind him.
“Your assistants?” she asked.
Elian did not lie. “They came through the service passage. I told them not to enter the archive.”
The clerk looked at Iven’s notebook. “You copied something.”
“Equipment labels and a pressure reading from the gallery,” he said. “Not the volume.”
“You had no authorization to enter the gallery.”
“No.”
She held out her hand. He did not give her the notebook. He did, however, open it to the page and let her see what he had written.
The clerk read the entries. “The mounting number matches the ledger.”
“Yes,” Elian said. “And the guide fault establishes a current maintenance concern. May I consult the diagram volume?”
She looked at him for a long moment. “I will request it. Your consultation is suspended until I receive an answer.”
“That could take days.”
“It could.”
Elian folded his notes. The clerk did not ask for them back; the authorization permitted copying. She accompanied them to the service door and watched Neri close the latch.
On the outer platform, Tavin was waiting with Cage Seven. Kesh signaled from the near deck. The return crossing went smoothly until Iven saw movement on the upper gallery behind the archive windows.
A guard stood there, looking down at the platform. He raised a hand toward someone inside.
“Company,” Iven said.
Tavin looked up. “Then we should stop admiring the view.”
They crossed to the cage and secured the rope. Iven did not cut the line; Neri had made it, and it could be retrieved from the near deck. As the cage moved away, a bell sounded above the gallery.
Not a warning bell for the city. A short, repeated signal for a security crew.
Elian held his copied pages against his chest. “I didn’t take the book.”
“I know,” Iven said.
“The entries say suppression and tissue draw. The equipment number matches. Harl’s guide was loose. That’s what we can prove.”
“And the pressure was high,” Neri added.
“Yes.”
Tavin guided the cage toward the near deck. “You can discuss the quality of your proof after we’re out of the open.”
Iven watched the upper windows. Two more figures appeared beside the first guard. One pointed toward the service track.
The cage had not yet reached the landing.