Chapter 113: THE SECOND NEEDLE

Dessa wouldn’t let the medic take the spanner. In the end, the medic wrapped a clean cloth around its handle so the blistered skin of her fingers wouldn’t rub against the iron. She sat on the examination cot with her legs wrapped in blankets, watching Mara lay Caspian’s copied diagram across the table.

"You brought me out through a hole in a wall," she told Sio. "Can you do that for the others?"

"Not through walls I can’t see behind." He glanced at her bruised wrists. "There’s nowhere safe to place an exit inside their compartment. We’re finding another way."

Dessa held the cloth tighter. "When I knocked, somebody answered once from below. Not your friends. Three slow strikes after mine."

Rhea looked up from the doorway. Dessa had already described hearing voices, but the timing was new. "Are you sure it was an answer?"

"No." Dessa met her eyes. "I thought I was alone then. I remember hoping it was."

Mara left her with the medic. In the workroom, Fern had spread the offline Legacy Index fragment beside an older maintenance ledger. The damaged projection showed two branches running from the inspection station; the symbols on its far edge dissolved into noise.

"Thirty-eight percent," Fern said, closing the image before it distorted further. "We can confirm that diagram was part of a pressure-relief circuit. We can’t tell what the collision did to it."

A broad-shouldered man beside her turned a borrowed gauge in his hands. His name was Iven, and he maintained Safe Node Seven’s water pumps. He studied its threaded fitting, then shook his head.

"None of our fittings will mate safely with ancient hardware. I’m not going to improvise one onto a pressurized line." He set the gauge down and pointed to two circles in Caspian’s sketch. "But these housings might not be test ports. If they’re covered gauges, we could read them without touching the pipes."

"Provided the needles still work," Tera said. "We compare them with the gauge inside the prisoners’ carriage. Same moment, three observations."

Mara cleared them for the upper-bank route and assigned two sentries. The Aureole courier had not returned; she didn’t speculate about the silence. "No one outside this room needs to know about the inspection chamber," she said. "If the watchers return, leave the instruments and get clear."

At the wreck, the runnel beneath the grille was still moving. Tera’s chalk mark from the previous day stood above the waterline. The narrow chute carried the flow away from the rock shelf, though wet grit had collected in a bend below it.

Caspian climbed to the white carriage panel with a lamp and a notebook. Angle took the high shelf where he could see Caspian and the outlet without standing beneath the cracked roof. Rhea stayed near the drainage cut, listening beyond the hiss of the runnel.

Tera unfastened the inspection cover they had secured the previous day. Sio directed his lamp through the narrow shaft until the pale chamber wall and a clear stretch of floor came into view. Only then did he open a portal against the exterior stone and its partner on the visible interior wall. Iven and Tera stepped through, keeping clear of the pipe assembly.

Gumm peered around Sio’s collar and extended one curious hand toward the light spilling across the rock. "Not today," Sio murmured, guiding the little fingers back into his cloak.

Inside, the two round housings were filmed with grime, their covers latched shut. Iven cleaned the outer metal and found a maker’s stamp beneath the dirt. He opened the shallow protective shutters without disturbing any pipe connection. Glass faces lay beneath them, each with an old needle resting above numbered marks. One sat close to the top of its scale; the other hovered near the bottom.

"Tera, you were right about the panel being worth a look," Iven called through the portal. "Wrong about those being test ports. They’re gauges, assuming they aren’t seized."

"I’m happy to be wrong in that direction." Tera examined a faded arrow stamped beside each face. "The high one appears to be upstream. The lower one faces the discharge."

"Don’t trust the labels yet." Iven made pencil marks on the glass opposite both needle tips. "We’re watching for movement, not treating these old numbers as calibrated pressure."

Caspian’s voice reached them from the carriage. All six prisoners were still answering. Their gauge remained near the red band, and the amber lamp was holding its charge while kept dim. Caspian had passed another canister of water through the gap, then asked the spokesman to keep his eyes on the needle when the signal came.

Tera stepped back through the portal and approached the exterior chute from the side. Yesterday’s trickle had deposited grit at a shallow bend, building a little ridge across the channel. Water pooled behind it and backed toward the outlet before spilling around the obstruction. She pressed a narrow board against firm rock so she could scrape the ridge without putting a foot in the stream.

"Only this downstream silt," she told Angle, who handed her a short scraper. "We leave the plate and the roots holding it alone. If the flow strengthens enough to damage the chute, everyone moves back."

Sio watched the open portal while Iven held his pencil beside the upstream dial. Angle stood where Caspian could see his raised arm. Rhea checked the upper bank, then nodded that nothing was moving beyond the sentries.

Angle gave Caspian the signal. At the carriage, Caspian called through the narrow gap, waited for the prisoner to confirm he was watching, and signaled back. Tera lifted the first clump of silt.

Water wound around the cleared stone with little change. She eased another handful free, and a ribbon of trapped water broke from the bend. The stream thickened within the shallow chute, carrying a few flecks of foam past the rock with the chalk mark still above the flow.

"Stop," Tera said. She backed onto solid ground, keeping the scraper away from the water.

Through the portal, Sio saw the lower needle quiver against Iven’s pencil mark. The upstream needle followed, creeping a fraction toward the next division. Iven kept his eyes fixed on it instead of announcing a result.

"Small change on both," he said at last. "Now we need the carriage reading."

Angle signaled to Caspian. They waited while the current clicked against the stones and someone inside the damaged carriage shifted close to its panel. Caspian finally raised his notebook.

"The prisoner’s needle moved down too," he called. "Less than a division. He watched it happen during the flow change."

Iven drew fresh pencil lines across the two faces. "Three instruments moved during the same test. That’s better evidence of a connection than yesterday’s readings." He glanced at Tera. "Still not a measurement I’d put my life on. We haven’t checked whether these gauges read accurately."

"Enough to plan a controlled release with proper equipment," she said. "Not enough to open that wheel."

The spokesman called Caspian back to the carriage seam. Water was still coming through the lower door seal, but the spreading wet patch beside it had slowed. Caspian checked that nobody had disturbed the door and relayed the report.

Sio rubbed his thumb against a muddy seam in his glove. The six had spent days hearing water force its way under a barrier they couldn’t safely move. A fraction on a dial meant little from the outside, but they had given the prisoners something they could feel changing.

Rhea raised her good hand. Angle saw her first and lowered his own arm. She had turned away from the outlet, her ears angled toward the broken carriage above them. A stone ticked against metal somewhere beyond their sight.

"Someone’s moving," she said.

"Inside the wreck?" Sio asked, glancing toward Caspian.

"I can’t place them yet." She listened again. "Hard strike. Softer step. Not Caspian."

Angle moved to the nearest clear section of shelf. From there he could see Caspian at the panel and the collapsed roof beyond, folding into a darkness no daylight reached. Nobody stood in the visible opening.

Caspian called down more quietly. "One of the six heard footsteps beyond their far partition."

Sio turned to the chamber. Iven had heard enough through the portal to finish copying the readings. He stepped out, followed by Tera, and Sio closed both openings. Rhea started toward the carriage, but Angle held an arm across the path before the roof’s cracked fall line. She crouched on safe rock instead and pressed her uninjured hand against an exposed rib.

The sound returned through the metal: one sharp impact, a muffled scrape, then silence. Rhea drew back, her brow tightening.

"Could be somebody else trapped farther in," Caspian said. "Dessa heard people."

"Could be," Rhea replied. "But it sounds like someone walking, not signaling for help."

The nearer sentry appeared above the bank and signaled urgently. A figure had crossed the far drainage bank beyond the watch line and disappeared among the broken cars. He hadn’t seen a face or uniform.

Angle pulled his red scarf loose from his neck. "The watchers followed this channel once already."

"They could be looking for a way around us," Sio said, watching the carriage. Mara had warned them to keep the inspection chamber hidden. They had finally learned how to lower the pressure, a little at a time. Someone else might have learned where they were working.

From behind the white panel, the trapped spokesman shouted. His voice cracked against the metal, and Caspian leaned toward the gap to hear him.

"Someone’s on the other side of the far partition!"

"Can you see them?" Caspian asked, pulling the lamp closer to the seam.

"No. The light doesn’t reach." Metal scraped from inside the carriage, followed by hurried footsteps. "It’s the latch on that partition. Someone just tried to open it."