Chapter 8

Raelin killed his headlamp and pulled Kiri flat against the tunnel wall. She’d already doused hers. Faint maintenance strips in the ceiling cast a thin, uneven glow, enough to make out shapes but not details. They pressed into the cold stone, not breathing, watching the light ahead.

It wasn’t searching. It moved steadily, the unhurried pace of someone who knew exactly where they were going. Two sets of boots. The light swept past a junction, paused, swept back across the intersection where Raelin and Kiri had been standing ten seconds ago.

“Side passage,” Kiri breathed against his ear. “Twenty meters back. The old culvert.”

They eased along the wall, staying in the deeper shadow. Fifteen meters. Ten.

Five meters. Raelin reached back, found the opening, and turned.

Two men stood in the passage mouth, hidden in the dim light until he was right on top of them. One held a shock-stick, its tip dark but ready. The other just crossed his arms.

“Evening,” the one with the shock-stick said.

Raelin spun back. The lights ahead had multiplied. More figures emerged from the darkness, from side passages, from gaps in the rubble he’d walked past a dozen times without noticing.

Seven of them now. Eight. Armed, patient, and forming a loose semicircle that pushed Raelin and Kiri toward a wider chamber ahead, an old junction point where several tunnels met. Portable work lights had been set up around the chamber, casting harsh white pools across the stone.

At the center of the chamber, a man waited. Three interlocking circles were tattooed across his shaved scalp.

Kozar was massive, shoulders broad enough to fill a doorway, his head marked with old scars that caught the work lights. A knife slash above one ear. What looked like burn tissue along his temple. A dozen smaller white lines crossing darker skin. Kozar’s eyes found Raelin and stayed there.

“The Kestrel kids.” Kozar smiled.

Raelin stepped closer to Kiri. She pressed against his side, her eyes sweeping the chamber. Behind them, the man with the shock-stick moved to block the way they’d come in.

“This is our site.” Raelin’s arm went back, shielding Kiri. “We found it. We’ve been working it for weeks.”

“Months, actually. And you’ve done well.” Kozar walked to the nearest wall, where someone had propped a robotic arm torn from the factory floor. Its chassis was gouged and mangled, internal components spilling out like metal viscera. “We’ve been in there for three hours. Ripped apart six of these things. You know what we found?” He kicked the ruined arm. “Scrap. Wiring. Nothing worth the walk down here.”

He turned to face them fully, and now his expression had sharpened.

“Yet you walk out with power cores. Premium grade. Week after week, regular as sunrise.”

Raelin said nothing.

“So.” Kozar spread his hands. “Maybe you’re blessed by the Oracle, or you know something about these machines that we don’t. And I’m not a superstitious man.”

“We got lucky. Found some loose components in…”

“Don’t.” Kozar’s voice flattened. “My men tear these machines apart and find nothing. You walk out with cores every week. That’s not luck.” His eyes moved between them, assessing. “That’s skill.”

“What do you want?” Kiri’s hands were fists at her sides.

Kozar gave her a businesslike smile. “I want to know how you’re finding the cores. I want to know what you’re seeing that we’re not. And then I want you to teach us.”

“And if we don’t?”

“Then I start with whoever isn’t talking.” He nodded toward the man with the shock-stick. “Dav’s good with that thing. Knows exactly how long to hold it, exactly where to touch. For most people, it’s just pain. Bad pain, but survivable.” His eyes settled on Kiri. “For someone with a heart condition? Medication every week. The kind that costs, that you can’t skip.” He shook his head slowly. “Dav might not even mean to do permanent damage.”

Dav had moved closer during Kozar’s speech. The shock-stick hummed in his grip, tip crackling with blue-white light. Raelin could smell the ozone.

It hovered near Kiri’s shoulder. She stood rigid, chin tucked, arms drawn tight against her sides. Her hands trembled. When the tip drifted closer, she flinched, pressing into Raelin.

“Wait.” Raelin’s voice came out raw. “I’ll show you one. Prove it works. Then you let her go, and I’ll teach your men while she walks out of here.”

Kozar considered this. His head tilted slightly.

“One demonstration,” he agreed. “Then we’ll see.”

Kozar’s men pushed Raelin toward an intact assembly arm on the factory floor. The vast space stretched around them, row upon row of skeletal machinery under a ceiling lost to darkness. More work lights lined the factory floor, their glare catching the dust that hung in the stale air. Raelin’s hands found the chassis, dusty and cold. He ran his fingers across the surface, searching for the seam he and Kiri had found after weeks of study, weeks of investigating old schematics until the pattern finally revealed itself. His hands shook.

“Here.” He pulled out his toolset, found the nano-torx driver by touch. The luminescent tip glowed faintly as it powered on. “The panels are hidden under what looks like structural housing. Fasteners underneath, no visible heads. The driver shapes a magnetic field to match them.” He pressed the tip to the surface. “Wrong tool, and you won’t even know they’re there.”

He held the driver against the panel, feeling the tip’s magnetic field adapt to the hidden fasteners the way it always did. That small, satisfying click of precision engineering meeting precision engineering. The screw loosened with a low whirr. He worked them out one by one, opening secrets for men who would never understand what it had cost to find them. The panel came free with a soft click, revealing the compartment beneath. Inside, a power core sat in its housing, surface pristine.

“Oracle’s grace.” One of the gang members leaned in, eyes wide. “They’re inside the arms?”

Raelin pulled out the core and set it on the floor.

“Every arm?” Kozar asked.

Raelin hesitated. He could lie. Tell Kozar only some arms had cores, salvage something from this wreck. But Kozar was watching him, and Dav’s shock-stick still crackled near Kiri’s chest, and the lie would unravel the moment they opened enough panels to find the pattern.

“Every arm,” he said. “The factory was a specialized production line. Pre-Collapse military contract. The cores were integral to the robots’ function.”

Kozar nodded slowly. Then he turned to his crew. “You all saw how he did that. Now watch again. I want everyone able to work these panels before we leave.”

“I showed you.” Raelin’s voice cracked. “Let her go.”

“After the next one. We’ll let her go when I’m confident my men can do this without you.” Kozar smiled. “You didn’t really think I’d trade all this for one core, did you?”

The second demonstration was harder. Raelin’s fingers slipped on an unfamiliar chassis, and he had to restart twice while Kozar’s men crowded closer, watching, memorizing. Once, between panels, he caught Kiri’s eye. She gave him the smallest nod.

He had to look away.

By the third arm, the gang members were practicing on their own. Clumsy at first, stripping screws and cursing, but learning fast.

The hour passed slowly. Neither of them spoke, although Kiri kept glancing at Dav’s shock-stick.

Raelin stood against the factory wall with Kiri beside him, two of Kozar’s men keeping watch while the rest moved through the production floor like locusts. The sound of panels being pried open filled the space. Each click was a week of medication, dropping into someone else’s pack.

“Rae,” Kiri whispered. “The one by the conveyor. Third from the left.”

The gang member there was struggling with a panel, applying too much torque at the wrong angle. As Raelin watched, something in the housing gave with a soft crunch.

“He cracked it,” Kiri breathed. “The core’s going to discharge.”

Raelin opened his mouth to shout a warning. And stopped.

Kiri’s eyes met his, then flickered to the side. The guard beside her had relaxed, attention drifting toward the work on the factory floor. The path to the old drainage culvert was fifteen meters away. They’d never used it because it flooded unpredictably and the footing was treacherous. It connected to a maintenance shaft that came out near the Rusty Ladder.

A white light began shining in the broken arm, intensifying quickly.

Kiri nodded once.

The core blew.

A violent exhalation of light and heat. The gang member screamed, stumbling backward with his hands pressed to his face. Two others nearby threw themselves flat. Someone shouted Kozar’s name.

Raelin was already moving. He grabbed Kiri’s arm and pulled her toward the culvert entrance. Behind them, their guard spun at the movement, shock-stick swinging up instinctively. The crackling tip caught Kiri across the shoulder as she twisted away.

She gasped, her legs buckling. Raelin caught her, half-dragging her the last few meters to the culvert. The opening was narrow, barely wide enough to squeeze through, hidden behind a collapsed shelving unit they’d noted months ago and filed away as useless.

He pushed Kiri through first, heard her splash into shallow water on the other side, then forced himself after her. The metal edge scraped his back, his pack caught and tore, and then he was through, dropping into ankle-deep muck that smelled of rust and old stone.

“Move,” he hissed. “Quiet.”

Kiri was shaking badly, her fingers gripping her shoulder. But she moved, stumbling through the darkness with him, away from the shouts echoing behind them.

The culvert branched after twenty meters. Raelin pulled them into the left fork, the one that sloped upward toward drier ground. They crawled into a pocket where the ceiling had partially collapsed, creating a cramped space filled with debris. Not comfortable. Not safe. But hidden.

They waited.

Voices began filtering through the tunnels. Kozar’s men, searching. Flashlight beams swept past the culvert entrance once, twice. Someone cursed about the water. The voices moved on.

Kiri was still shaking. Her breathing was shallow and rapid, her face gray in the thin light that leaked through cracks in the stone above.

“Ki.” Raelin whispered. “How bad?”

“Just a graze.” But her hand was pressed to her chest now, not her shoulder. “My heart’s… racing. Chest. Pain.” She tried and failed to stand up.

He dug through her pack, found the small bottle she kept there for emergencies. The label was worn but readable: PepUp.

“No.” She shook her head weakly. “That stuff’s…”

“That stuff is going to get you home.” He pressed the bottle into her hand. “One dose. Just enough to get through the tunnels.”

She stared at it for a long moment. Then she unscrewed the cap, tipped a pill into her palm, and swallowed it dry.

Color returned to her face. Her breathing steadied, though her pulse was still visible in her throat, jumping too fast. She pushed herself upright, wincing.

“Okay,” she whispered. “Okay. Let’s go.”

They moved through the maintenance shaft with minimal lighting, feeling their way along walls slick with moisture. Twice they heard distant voices, but never close enough to matter. The route was longer than Raelin remembered, the footing worse, but eventually the shaft connected to a passage he recognized.

The Rusty Ladder. They were past Kozar’s men.

The walk back through the Steelroots passed in fragments.

Kiri’s steps grew heavier as the PepUp wore off. By the time they reached the Iron Threshold, Raelin was half-carrying her. Zane was at the guard post. Gerard stood behind him, but Zane stepped forward before his partner could say anything. One look at them and he was through the checkpoint, ducking under Kiri’s other arm, taking her weight.

They moved through the Substructure like that, Kiri slung between them, her feet barely touching the ground. Zane matched Raelin’s pace, adjusted when Kiri’s head lolled forward, and kept his eyes on the route ahead. Undertown was loud and bright around them, but Raelin saw none of it.

At the entrance to their home, Raelin fumbled with the door. Zane shifted Kiri’s weight, taking more of it so Raelin could work the latch.

Inside, they lowered her onto her mat. Zane knelt beside her, one hand checking her forehead while Raelin pulled a blanket from the shelf.

“Easy, Ki.” Zane’s voice was low. “You’re home.”

Kiri’s eyes fluttered. “Uncle Z?” Her voice was thin.

“Right here.” He took the blanket and tucked it gently around her. “You rest now.”

She curled on her side, one hand pressed to her chest. Her breathing came in short, sharp gasps.

Zane looked at Raelin. “What happened out there?”

“Kozar.”

Zane’s jaw tightened.

“Oracle’s wisdom, boy.” He shook his head slowly. “Getting mixed up with Kozar.”

“He found us. At our site.” The words came out flat. “We ran. She got hit with a shock-stick.”

Zane’s eyes went to Kiri’s hand, still pressed over her heart.

“Her condition?”

“I don’t know.”

Kiri stirred. “I’m okay.” Her eyes stayed closed. “Just need to rest.”

Zane watched her for a long moment. Then he stood, slow and heavy.

“Gerard’s covering the post alone. I’ll come back this evening.” He moved to the door. “You need anything before then, you send word.”

“Thanks, Uncle Z.”

Zane held his gaze.

“Lock up behind me.”

Then he was gone.

Raelin sat beside her, one hand on her shoulder. Over the next minutes, her breathing slowed slightly. The tension went out of her frame. She slept.

He didn’t.

Her breathing kept him awake. Still too fast, catching in her chest.

He unpacked their gear, sorting tools into their slots the way he always did after a run. Wiped down the nano-torx driver. Checked the molecular scanner for damage. The routine usually ordered his thoughts, but tonight they kept returning to the factory. The panel coming free. Kozar’s men crowding closer. The crackle of the shock-stick.

He checked on Kiri. Adjusted her blanket. Sat down.

Got up. Checked on Kiri again. Her breathing hadn’t changed.

He checked the door lock. Repacked the gear. Sat down. Got up. Checked on Kiri.

The factory was gone. Kozar would strip it clean and watch every route they knew. Three months, maybe four, until Kiri’s medication ran out.

Raelin moved to his father’s bookshelf. Maps, survey records, old journals. Somewhere in all of it, there had to be another option. Something they’d overlooked.

He pulled down the first book and began to read.