The northern boundary smelled of frozen iron and burning fat.
Here, two miles from the warm, flooded market square, Sector 4 did not feel alive. It felt like the threshold of a slaughterhouse freezer.
The boundary was marked by Pillar 09—a sixty-foot column of reinforced, lead-lined concrete holding up both the outer glass roof of the dome and the massive, iron-plated blast gates separating Sector 4 from the dead, unexcavated ice drifts of Sector 5.
The ice here had not melted. It had turned into a dark, semi-translucent slush that clung to the concrete like gray grease. Warm air from the center of the district hit the cold wall of Pillar 09 and died instantly, dropping to the deck in heavy, freezing rain that turned into razor-sharp ice needles before hitting the floorboards.
"If I lose another finger to frostbite, Danial, I'm billing your father's estate," Oakes barked from the slush below, his teeth clicking like iron shears. He slapped his gloved hands against his thighs, spitting a gray jet of breath into the fog. "Lift it higher! The copper's dragging in the grease!"
"It's not grease, Oakes, it's frozen runoff," Maya snapped back from the mid-level platform. She hauled on the hemp rope, her boots wedged against a rusted iron girder. "And if you want it lifted faster, grab a line instead of giving commentary!"
"I'm seventy-two years old, girl! My job is commentary and staying alive!"
Fifteen feet up the side of Pillar 09, Danial balanced precariously on a rickety wooden scaffold built from broken bed frames and iron pipe. His boots were wrapped in greasy canvas rags to keep from slipping, and his bare fingers—stripped of gloves so he could feel the delicate copper connections—were raw, swollen, and slippery against the slate junction box.
"Keep the line taut, Maya!" Danial called out, his voice raspy from inhaling steam and coal smoke. "Oakes, hand up the primary throttle. Gently."
"Gently," Oakes muttered, reaching into an oil-soaked canvas bag. He hauled out the dual-rotor brass dial and hooked it to the hoist line. "Like handling a newborn babe made of high-voltage death. I know the drill."
Captain Vane stepped out from the shadows of the blast gates below, her copper cutting lance slung low over her shoulder. She kicked a lump of grey slush off her boot and stared up at the scaffold.
"How long until this contraption burns or blows?" Vane asked, resting a gloved hand on the iron ladder.
"Five minutes if we're lucky," Maya grunted, tying off her rope with a quick double-hitch. "Two minutes if Danial miscounts the coil turns."
"I didn't miscount," Danial said without turning around. "Eight hundred turns on the secondary. Exactly as the schematics laid out."
"Schematics drawn by a man who's been dead six months," Vane noted dryly. She glanced back into the dark corridor leading toward Sector 5, then up at the high structural girders overhead. "Make it three minutes. We've got company."
Danial paused, a pair of rusted iron pliers clamped between his teeth. He pulled them out. "Council?"
"Scouts," Vane said, pointing a heavy iron finger upward. "Three of them on Catwalk Four. They aren't holding rifles, though. They've got brass tubes. Optical scopes."
"They're taking measurements," Maya said, her voice dropping. She climbed up two rungs to stand level with Danial's platform. "They want to see if the lattice collapses when we strike the arc."
"Let them measure," Danial said. "Oakes! The feeder wire!"
"Coming up! Stop rushing an old man!" Oakes hauled the heavy rubber-insulated cable up the ladder himself, panting heavily as he threw it onto the platform. Inside the wooden frame sat the raw Selar crystals—no longer pale blue, but a deep, bruised violet, pulsing with that faint, unnatural rhythm Danial had felt in the postal basement.
"They're active," Maya whispered, reading the diagnostic backing. "Danial... the crystal matrices are reacting to the ambient cold from Pillar 09 before we've even dumped current into the coil."
"The lattice outside knows we're here," Danial said, picking up the heavy feeder cable. "It's pushing cold down the concrete pillar to smother the Node before we can strike an arc. Maya, hold the slate backing. Don't let the throttle tilt."
Maya grabbed the edges of the slate mount. Her hands were shaking, but her grip was tight. "If the crystal surges, do I drop it?"
"If it surges, you won't have time to drop it," Danial said simply.
He jammed the raw feeder cable into the brass busbar of Node 1.
SPARK.
A violent, violet arc leaped six inches through the freezing air, striking Danial's wrist before snapping into the copper windings.
A shock ran straight up his arm, locking his jaw and throwing his head back against the concrete pillar. The world behind his eyes instantly snapped into that cold, geometric indigo space—not vast and distant this time, but close, sharp, and razor-focused on Pillar 09.
WE SEE THE ANCHOR, the collective mind whispered—not a voice, but a sudden, violent drop in atmospheric pressure that made everyone on the deck plates gasp for air. YOU TRY TO BIND THE ICE WITH COPPER AND SPITE. BUT COPPER RUSTS, LITTLE SPARK.
"Not today it doesn't," Danial gasped aloud.
Maya gasped as the slate board kicked in her hands, spitting blue sparks over her knuckles. "Danial!"
"Hold it!" Danial yelled, his voice strained as his arm went rigid. "Don't let go, Maya!"
"It's drawing forty amps already!" Gears shouted from the deck below, his brass eye spinning with a sharp click as he slammed a diagnostic slate against his knee. "The core temperature is spiking!"
"The ice is fighting back!" Oakes yelled, pointing up at the concrete column. "Look at the pillar!"
Thick, black frost was crawling down Pillar 09 like liquid ink, rushing to cover the copper box before the thermal field could expand. The air around the scaffold dropped so fast that Maya's wet woolen sweater stiffened with instant ice.
"Drive the throttle!" Vane called up, her hand dropping to the hilt of her lance. "Danial! Drive it!"
"I can't push it straight!" Danial shouted through clenched teeth. "The frequency... it's jumping! It's not a steady wave!"
"Then balance it!" Maya screamed over the deafening, high-pitched whine erupting from the coil. The copper wires were glowing dull cherry red now, scorching the wooden box frame. "Listen to the resonance!"
"It sounds like tearing metal!" Danial gritted out.
"Because you're forcing it!" Oakes bellowed from below, hands over his ears. "Stop fighting the vibration! Match it! Left knob three clicks!"
Danial slammed his blistering palm onto the left brass rotor and cracked it counter-clockwise.
CLACK. CLACK. CLACK.
The screaming noise instantly dropped an octave, turning into a deep, chest-rattling thrum that vibrated the iron floorboards under their boots.
"Right knob! Two clicks!" Maya yelled, reading the faint, flickering pointer on the slate backing. "It's balancing! Danial, do it now!"
Danial grabbed the second rotor, ignoring the smell of his own scorching skin as he twisted the dial.
THUMP-THUMP. HUMMMMMMMMM.
A shockwave of invisible, dry heat slammed outward from Node 1. The three-inch layer of gray slush covering Pillar 09 didn't melt into water—it exploded into a blinding wall of pure white steam with a roar like furnace doors throwing open.
"Down!" Vane barked, diving behind an iron crate as scalding vapor flooded the bay.
Maya ducked her head into her elbows, coughing as warm, dry air filled her lungs for the first time in three weeks. The freezing fog was gone, replaced by a clear, radiating circle of warmth extending fifty feet in every direction. On the deck plates, the slush turned to dry, dusty stone within seconds.
The violet crystal inside Node 1 stopped throbbing violently, smoothing out into a deep, steady purple glow that radiated a soft, comfortable heat.
Silence fell over the northern perimeter, save for the steady, soothing hum of the node.
Below the scaffold, Gears stood with his jaw hanging open, lowering his diagnostic slate slowly. "Thermal boundary... stabilized at seventy-two degrees Fahrenheit. Zero frost accumulation within the perimeter zone."
Oakes pulled off his spectacles, wiped the condensation off with his thumb, and put them back on. He looked at the dry concrete under his boots, then up at the glowing box.
"...Well," Oakes muttered, clearing his throat loudly. "The copper didn't melt. That's... acceptable work, I suppose."
Maya let out a long breath, slumped against the scaffold rail, and looked down at her hands. They weren't blue anymore. "It feels... like summer."
Danial leaned his back against the warm, dry concrete of Pillar 09, pulled his father's battered journal from his coat with shaking fingers, and opened it on his knee. He picked up a stub of black charcoal and drew a firm line connecting Sub-station 8 to Pillar 09, writing a single word beside it: SECURED.
Above them, on Catwalk Four, the three Council scouts pulled back from their optical scopes. One of them—a tall man in a tailored, fur-lined grey coat—stood up slowly. He pulled a silver pocket watch from his vest, checked the time, and looked directly down at Danial through the warm, rising air.
"He's not running," Maya whispered, following Danial's gaze.
"No," Danial said quietly, rubbing his burned palm. "He's counting how long it takes us to build the second one."
Vane stepped out from behind her crate, looking up at the scout, then down at Danial. "They won't attack the node directly. Not yet. It's too public now. Every miner in Sector 4 just felt the frost drop."
"They won't need to attack the node," Danial said, closing the journal and tucking it tight against his ribs. "Once we set Node 2 and Node 3, we cut off their cold-drain from the lower shafts entirely. They'll have to send someone down to talk."
Oakes picked up his toolbox, a small, rare smile tugging at the corner of his mouth despite himself. "An envoy?"
"An envoy," Danial agreed. "Or an ultimatum. Either way, we make sure we have five more nodes burning before they arrive."