Boltfire tore fist-sized bites from the half-slagged generator he’d chosen as cover. The thing had once been a proud block of Mechanicus industry, all ribbed casings and sanctified vents. Now it was a wounded idol, its metal skin blistered and glassed, bleeding sparks every time a round struck home. Shrapnel whirred past his helm like angry insects.
Lieutenant Bastian didn’t flinch. He couldn’t afford the luxury.
He thumbed the ejector with the practiced economy of a man who’d done it a thousand times in training and a thousand more in the last four days of hell. The spent magazine dropped away. A fresh one slapped home with a hard, satisfying clack. Around him, his brothers in the black and white of the Black Templars held their line in the forge’s wounded belly, their silhouettes stark against furnace-glow and drifting smoke, tabards snapping in the hot draft.
The air tasted of promethium, hot oil, and copper. Every breath through the rebreather carried grit.
Across the ruin of the chamber, traitor Black Legionnaires moved like cruel, disciplined shadows between gantries and machinery. Their armor caught the light in quick, oily flashes. Between the Astartes volleys, the wider war snarled and spat: dozens of cultists and press-ganged guardsmen traded lasfire in messy, panicked bursts. Skitarii plasma whined with that clean, clinical hatred, bright spears that left afterimages. Somewhere close, a Sister’s flamer shrieked like a living thing, washing a corner of the room in roaring orange and the thick stink of burning cloth and meat.
Behind the mob, Bastian’s real problem advanced.
Six traitors, a full squad, moving with the confidence of killers who knew the angles of the room. Two of them lugged heavy bolters, laying down a constant, punishing hammerbeat that kept Bastian and his two brothers pinned. The traitors didn’t rush forward. They stepped and covered, edged toward a flank like a blade sliding under a rib.
Bastian’s tactical feed crawled with warnings and half-read auspex returns, the forge’s geometry warping in the storm’s interference. His jaw clenched as he judged distance, timing, ammunition. He was about to snap the order to smoke and push. To close the gap before the heavy bolters chewed them to pieces.
A voice cut across the vox.
Not one from the command line, it had none of the exhausted, sandpaper-rough tones he’d been listening to for days, voices starved and dehydrated and frayed to the bone. This voice was clean. Clear. It rode through the warp-storm’s crackle like it owned the channel, crisp enough that for a heartbeat Bastian wondered if his vox had finally died and gifted him silence.
Then the voice spoke his squad designation directly.
“Epsilon squad, retreat immediately. I repeat, retreat from your current position immediately!”
Bastian’s helm turned by instinct, scanning for the source even though he knew it would be nowhere his eyes could see. In his peripheral, he caught movement: the guardsmen sergeant froze mid-command, and the Sister Superior paused as well, her head tilting slightly as if she could taste the wrongness in the signal.
She was the first to answer, voice hard as struck steel. “Identify yourself and give clearance codes!”
There was a fraction of a second of dead air. Then the reply came back, impatient and almost offended.
“Look west, my clearance code is the giant angry demon that is twenty seconds from barreling through your position, now move!”
All three commanders pivoted as one.
Bastian’s auspex stuttered, then seized on something that made the machine-spirit in his display shriek warnings in angry red. The western wall, a tall span of stained glass and steel latticework, trembled. The glass was old, the saints and cog-toothed halos rendered in colors that should not have survived this long, their faces lit now by the ugly pulse of weapons fire.
Voices collided into a sudden, frantic jumble. Fallback orders snapped out. Boots pounded. The Sister’s squad moved with drilled speed, hauling the slower with them. The guardsmen broke like water around rocks, running hard, firing over their shoulders, trying to keep some shape as terror took their knees out from under them.
Dozens died in the first seconds. Traitor fire stitched into retreating backs, eager, delighted. Bastian saw a man spin and fold without ever making a sound. Another tried to drag a wounded comrade and was cut down for the kindness. The Black Legionnaires pressed forward in a surge, hungry for the easy harvest.
Then a figure crashed through the stained glass.
The window detonated into a storm of colored shards that spun in the air like falling jewels. For an instant, the newcomer was framed by that glittering halo, a silhouette leaner than an Astartes, but moving with a speed that made Bastian’s eyes try to refocus and fail.
He hit the deck in a roll that was too clean for a mortal and too fluid for power armor, coming up into a sprint without a pause. His armor looked like a rig that had survived a war, the strange metal scorched and blackened, joints built for motion rather than ceremony. Both arms were smooth, wrong in the way advanced things are wrong, moving with a quiet precision that made Bastian’s gene-forged instincts prickle. His head snapped once, just once, like a man listening to something only he could hear.
Then the man vanished.
Space flexed around him with a subtle, nauseating twist, a localized folding that made Bastian’s lenses bloom with static and his stomach lurch in sympathetic protest. He reappeared on the far side of the chamber, already moving, already calculating, already running like the room itself was trying to kill him.
And behind him came the reason for the warning.
The western wall bowed inward as if the forge had suddenly been placed under the weight of a mountain. Metal screamed. Bolts sheared. The stained glass remnants trembled, then burst outward as something massive hit the boundary of reality and decided it didn’t believe in boundaries.
Angron arrived like a verdict.
He didn’t simply enter. He happened. The outermost wall ceased to exist in a roar of pulverized stone and shredded steel, and the shockwave that followed turned the chamber into a bomb. Traitors and the slower loyalists lifted off their feet, flung up and away, bodies rag-dolling through the air to smash into machines, walls, and support pillars with sickening finality.
The forge screamed as its massive structures took the blow, groaning under the sudden, violent rearrangement of physics. Hanging chains snapped like harp-strings. A crane arm buckled and fell, trailing sparks. A brazier of molten slag sloshed, sending a glittering arc of liquid fire across the deck.
Bastian dug his boots in, armor servos whining as he fought to keep his stance. His weapon came up on reflex, mind already trying to turn the impossible into firing lanes and kill boxes.
Across the chaos, Koron moved again, a flicker between places, a man sprinting ahead of a god’s tantrum.
And Angron kept coming, a hurricane given flesh and direction, barreling straight through the room as if it were nothing more than paper in his path.
...
The thief’s intent finally stopped being noise and became shape.
Not some grand strategy. Just a simple, ugly truth written in rubble and bodies: the mortal was using him.
Three times now the little runner had cut a line straight through knots of Black Legion—buildings where Angron’s erstwhile allies had gathered to reload, to chant, to posture in their blackened iron. Three times Angron had followed, and each time his arrival had been less a pursuit and more a catastrophe. Walls had bowed. Roofs had caved. The air itself had flinched. A dozen Astartes had been reduced to broken armor and twitching limbs. Hundreds of cultists had become red mist and bone fragments scattered like offerings across the floor.
Khorne cared not from where the blood flowed.
However, the thought was not a comfort.
It was a taunt.
Angron’s rage was a furnace, but it was not blind. Not always. Even in the storm, there were moments when the Nails’ bite became a pattern he could read. The mortal’s path had been too consistent. Too convenient. Like a finger drawing a line across a map, circling targets, dragging the Red Angel like a chain-blade pulled through a slaughterhouse.
No.
Angron would not be led. Not by gods. Not by mortals.
Not by anything.
He landed atop another roof with a weight that made the structure groan in complaint. The rooftop was a sheet of industrial plating, slick with soot and condensation, bordered by ruined vents that coughed exhausted steam into the storm-lit air. Beyond it, the forge-city sprawled in wounded layers: gantries like broken ribs, chimneys vomiting black smoke, stained glass and cogwork shrines shattered and hanging in jagged teeth. Warp-light flickered at the edges of the world, rifts that had been screaming moments ago now sinking to a low, resentful rumble—as if reality was holding its breath around him.
Angron’s nostrils flared. Steam rolled from his maw in thick gusts, carrying the stink of ozone and hot iron and fresh-spilled blood. His wings—half shadow, half torn ember—shuddered once, and the air around him buckled.
He stared after the mortal.
It was small, fast, infuriating, already distant, a flicker of movement across collapsed rooftops and skeletal catwalks. Too quick for the eye to hold. Too precise in his choices, always just ahead of the moment Angron could take him apart. The thief ran like someone who understood exactly what would happen if Angron caught him.
Angron’s fists clenched. Warp-flesh creaked under the pressure. The Nails sang, demanding pursuit, demanding the satisfying end of it.
He turned away instead.
Let the little man run.
The decision was a blade he forced through his own throat. It felt wrong in every nerve. It felt like swallowing fire and calling it water. But Angron made it anyway, because rage was easy. Refusal was harder. Refusal was his.
Angron would force the choice, on his own terms.
He lifted his head and listened—not with ears, but with something deeper, something ancient and predatory. He could feel war in the city like pressure in the bones. Heartbeats drumming hard enough to be heard through walls. Adrenaline sharp as promethium fumes. The hot contraction of muscle, the panic-sharp breaths, the massed movement of bodies trying to become anything but a target.
It was the music of war.
It was everywhere.
And somewhere nearby, it was louder.
Angron pivoted toward it, toward the nearest concentration of living defiance. Loyalists. The dogs who still pretended duty could stand against a god’s chosen violence. He could almost taste their fear already, metallic and bright.
The warp rifts around his wings flared as he moved, as if reality tore itself open to make room for him. Their earlier rumble rose to a howl, a chorus of wounded dimensions. Dust and loose debris lifted in spiraling halos around his hooves. The rooftop buckled where he stood.
Then he exploded into motion.
The world blurred. Wind screamed past his ears. Buildings became shapes to be avoided or smashed through depending on which was faster. Every impact sent shockwaves rolling outward, rippling through walls, shattering windows, shaking loose centuries of grime and faith and rust. Somewhere below, sirens wailed and died in the same breath.
If the mortal wished to run—
Angron would repay that mercy he’d witnessed. Not by sparing the thief.
By turning it into a lesson.
The mortal had shown him a thing: that even a hurricane could be pointed, if the hand was cruel enough.
So Angron chose his own direction.
He would not chase the thief.
He would take away the ground beneath him.
And when the mortal was forced to stop, forced to turn, forced to choose between running and watching the loyalists die—
Then Angron would smile.
...
‘He’s stopped chasing.’
The words came out flat, but Koron’s body didn’t believe them. Every nerve still expected impact. Every breath still came with that thin, electric edge that meant run now or die later.
The wind tore across the rooftops in hard, screaming gusts, shoving at him like an impatient hand. It carried the whole city’s throat in it: hot promethium, burnt insulation, powdered stone, and that copper-raw tang that always showed up when too many people were bleeding in too small a space. Far ahead, artillery shells slammed into the outer lines of the orbital spire, the impacts arriving as deep, chest-rattling thunder. The spire loomed like a broken needle of salvation, impossibly close on the horizon and impossibly distant in the math of streets, enemy lines, and time.
Below and around him, the battle was not a battlefield. It was a collision.
Loyalist forces and Chaos were tangled in the streets in a moshpit of bodies, armor, and shifting knots of command that formed and dissolved in minutes. Here, demons poured into Guardsmen lines like a tide of teeth, bayonets flashing and then vanishing under claws. There, Rhino transports and Leman Russ battle tanks barreled down main avenues at speed, engines roaring, treads grinding rubble to paste. Their cannons tore chunks out of buildings and bodies alike, turning brickwork into dust clouds and men into falling, ragged silhouettes.
It should have felt like relief, that the demon wasn’t on his heels.
It felt worse.
Koron hit the side of a smoldering building and stuck the landing. He crouched on the vertical plane, one hand braced against scorched ferrocrete. Heat shimmer crawled off the wall. Soot streaked his metal fingers. For a heartbeat, he looked almost like an insect clinging to a dying world, tiny against the scale of the war.
He craned his head and looked back.
The bastard was already in the loyalist lines.
The demon moved with a terrible, casual certainty, stomping tanks into scrap beneath his hooves. A Leman Russ vanished under him with a sound like a temple collapsing. His blades carved through cover as if it were paper, cleaving barricades, sandbags, and bodies in the same sweeping motions. Men became red arcs. Bone and armor fragments spun away like thrown gravel. The air around him bulged with the shock of his motion, and the ground trembled as if the city’s foundations were trying to crawl away.
Koron’s throat went dry.
Then, as if the demon could feel the weight of Koron’s attention like a spotlight, he turned.
He did it slowly. Deliberately. A performer hitting his mark.
He raised his sword and pointed it straight at Koron’s perch on the wall.
And he smiled.
It wasn’t a human expression. It was the bare, bright certainty of a predator that has already decided how this ends. Around him, mortal weapon fire hammered his hide. Las-burns charred plates of armor. Bolts punched craters into red muscle and erupted in brief blossoms of gore. It made no difference. The demon stood still for a long, theatrical moment, letting them spend themselves on him, letting Koron see how little the city could hurt him.
Koron swallowed, and his voice came out quieter.
“He’s taunting me.”
Sasha’s reply slid into his ear like a hand on his shoulder. Calm. Sharp. Too steady for the chaos around them.
‘He’s trying to get you to chase him now,’ she said. ‘But—’
“I know.” Koron’s fists clenched until the servos in his forearms complained. He stared right back at the demon, refusing to blink first like it mattered. Like defiance was anything but a useless gesture here.
A blinking red number resurfaced in his HUD. Cold. Clinical. Unmoved by bravery, prayer, or rage. It hovered at the edge of his vision with the pitiless honesty of math.
ERROR: Survival probability: -2147483648.
His system wasn’t just telling him the odds were bad.
It had looked at the demon, done the calculation, and slammed into the floor of what it could represent.
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A negative integer.
Not unlikely.
Not catastrophic.
An answer so impossible the machine had hit the end of the number line and started screaming.
Koron exhaled slowly, tasting smoke through the filters.
Even the code was afraid of him.
For a heartbeat he let that sit, heavy and absurd, a prayer written in error messages. Then his mind did what it always did when fear tried to take the wheel.
It split.
Parallel thought-lines peeled off and ran at full speed, each one trying to find a door that wasn’t locked, a weapon that wasn’t a joke, a variable that could be changed. They all hit the same wall.
He didn’t have the time.
He didn’t have the tools.
He didn’t have the materials.
Not here. Not now. Not in the middle of a city that was becoming a graveyard one street at a time.
The demon had been hurt by ship-grade gravity cannons. Koron had seen it, had felt the brief, glorious moment where physics actually argued back. But the pistol in his hand was a needle compared to those guns, a sidearm built for men and armored infantry, not a demigod wearing rage like armor. It would annoy the warp spawn. It might even make him look over again, smiling that same smile.
His drones had hurt it too, briefly. Twenty of them, coordinated, throwing everything they had at the problem like desperate engineers trying to patch a hull breach with their own bodies. It had worked just long enough to prove a point. Long enough to give Koron the cruelest gift possible: confirmation that demon was not invincible.
Now only Rover remained, a single loyal shadow in a city full of enemies, a signal blip and a pair of eyes he could trust when everything else was smoke and lies. Koron felt that absence like missing teeth. The quiet where a network should have been. The hollow where options used to live.
He had no authority to command the Imperials. No chain of command to pull like a lever. No rank that mattered to anyone wearing a different color of armor. He could shout, he could plead, he could offer equations and miracle-tech and a promise that this would all make sense later.
And still the battle would move without him.
Worse, he’d watched what the loyalists had thrown at the monster. Tank shells that would have turned buildings into mist. Plasma that could eat through ceramite like wax. Volley after volley of brave, doomed fire. None of it had done more than slow the beast down. Nothing had made him hesitate. Nothing had made him stop.
Only one answer held any honest hope of victory.
Guilliman.
The name landed in Koron’s mind with a strange weight, part relief and part dread. Not because Guilliman was a savior. Because he was one of the only beings in this war who could meet this bastard as something resembling an equal and live long enough to matter.
But to get Guilliman, Koron needed to get a message through.
He needed signal. Bandwidth. A moment of clarity in the warp-storm’s teeth. He needed the spire.
Koron closed his eyes. For just a second, he let himself feel the wind clawing at him, the building heat soaking through his boots, the distant percussion of artillery hammering the skyline. He filled his lungs, deep and slow, forcing his heartbeat to fall into a rhythm he could use. Then he released the breath just as carefully, as if he could exhale panic along with the smoke.
When his eyes opened again, the fear was still there.
It just wasn’t driving anymore.
Koron turned away from the demon’s watching grin and launched himself into motion, racing toward the orbital spire as the city howled behind him.
...
Koron peeked over the crested spine of a collapsed skyscraper, Rover’s metallic snout right beside him as they looked out over the battlefield.
The tower’s broken body lay sprawled beneath him, its upper floors pancaked into jagged terraces of ferrocrete and twisted rebar. Wind moaned through exposed elevator shafts. Shredded cables hung in loops, swaying like vines. Every step crunched glass and powdered stone into the ruined fabric of his boots, and the whole carcass of the building trembled with distant impacts, as if the city’s ongoing violence had become a heartbeat.
Their cloaks were engaged, the field humming at the edge of perception, turning him into an absence rather than a shape. Heat haze bent wrong around his outline. Dust didn’t quite settle on him. The little inconsistencies were the only proof he still existed at all.
Behind him, the Chaos battlelines clashed in a constant dirge of screams and weaponfire. Las-bursts stuttered like angry insects. Heavy bolters hammered the air into pulp. Every so often there came a deeper sound, less a noise than a pressure, a faint roar that rolled through the rooftops as if the atmosphere itself were being torn. Even at this distance, even muffled by stone and smoke, Koron could feel it in his teeth.
The demon.
Cleaving his way through loyalists like a scythe through wet grass, making the city remember fear.
Ahead, the orbital spire’s base dominated the landscape.
A massive hexagon sprawled across miles of ground, a fortress wrapped around the spire’s roots like plated knuckles around a throat. Its outer walls were layered with bastions and firing galleries, hard edges and brutal angles that drank light and threw it back as glare. Searchlights swept the haze in pale cones. Vox masts bristled. Auspex arrays rotated in slow, tireless arcs, as if the structure itself was watching.
The defenses were a grim work of art.
Heavy encampments sat in disciplined grids, tents and prefabs dug into the earth and walled with sandbags, scrap plating, and reinforced barriers. Tanks rested in dugout bunkers like predators in shallow water, their barrels angled outward, waiting. Trenches cut the ground into crisscrossing scars, layered fallback positions that promised the same message over and over: advance, and bleed for every meter.
Artillery banks thundered downrange in steady rhythm. Each launch slapped the air, each recoil made the earth shiver. The sound carried up the ruined city bones and into Koron’s chest, a distant percussion that never stopped long enough to be called silence.
And in front of all those guns—
The land had been erased.
A no-man’s-land nearly a kilometer deep, blasted clean and scraped flat by sustained bombardment. Old buildings had been reduced to ankle-high rubble. Cover positions had been torn down, cratered, and then cratered again until the ground looked like pox-scars made by a mad god. Anything tall enough to hide behind had been cut away. Anything solid enough to matter had been pulverized.
It was a kill-zone. Simple. Honest. Mean.
Koron’s gaze traced it, measuring distances without thinking, watching how the smoke behaved over the open ground. He could almost feel the defenders’ firing solutions sitting there, precomputed and patient. Every path across that emptiness was a line on a range table. Every possible sprint was a timed equation with a bloody answer.
Taking a breath, Koron began moving along the edge of the ruined skyscraper, cloaked and silent as he could be, while the guns sang and the world tried to decide whether he was a man, a ghost, or just an idiot running out of time.
...
Dust fell in a soft curtain as Koron lowered the cut-out section of wall to the floor. The slab hit with a muted clang and a sigh of grit, and for a moment the only sound in the room was settling debris and the distant, constant thump of war filtering through kilometers of metal, his eyes flicking to his sensors to see if anyone had heard it.
Thirty minutes since he’d slipped into the tower’s base. Thirty minutes of moving like a rumor through corridors meant for machines, not men. Enough time for the internal maps to stop being unknown geometry and start being place.
The spire gave itself a name in layers, like anatomy.
The Apron: the foundation-city wrapped around the spire’s roots, the first twenty kilometers of bracing where the structure thickened into something that could survive weather, war, and time. The air down here was heavy with old heat and old incense, with the oily breath of generators and the sour tang of coolant that had been recycled too many times.
Above that rose the Throat—nearly sixty kilometers of lift-stacks, cable trunks, and service arteries. A vertical industrial maze designed to swallow men and machinery and keep climbing. The kind of place where you could get lost and die without anyone ever realizing they’d misplaced you.
Then the Girdle: another hundred kilometers of transfer rings and docking collars where low-orbit lighters could offload cargo and shuffle personnel upward. The obvious choke point. The Black Legion had treated it like one, too. Most of their strength was stationed there, squatting on junctions and ladders of infrastructure like parasites in a bloodstream. The loyalists couldn’t afford to simply shatter it without severing the whole spire like a snapped spine.
Everything above, nearly a thousand kilometers of superstructure, was the Crown: high-orbit docks and repair yards. Still contested. Still entrenched. Fighting up there distant enough to be lightning… until it wasn’t.
Koron’s eyes tracked those invisible heights as if he could see through steel and distance. His face didn’t change much, but the tension in his jaw did. The spire was a monument to human stubbornness, and right now it was also a very tall, very expensive cage.
Sasha’s voice slid into his neural link, calm and businesslike, as she checked Rover’s position at the junction.
‘The vox-spine is reading solid. I’m not picking up inbound contacts. You should be clear to start working.’
Koron nodded once, minimal motion, as he slipped through the opening. Rover shifted into her bipedal form, joints whispering, and pushed the cut-out plating back into place with careful pressure. Koron gave it a single spot-weld to hold. The weld sizzled, sharp and bright, the smell of heated metal briefly cutting through the room’s stale mixture of machine-oil and dust.
Then he turned toward the spine controls.
The vox-control room was small by Imperial standards—only forty meters across—but it was packed to the point of claustrophobia. Cogitator stacks rose like blackened altars. Bundles of cabling ran in thick arteries along the walls, pulsing with faint indicator lights. Servitors hung from wall mounts, slack-limbed and mute, their grey faces turned toward nothing, plugs sunk into their skulls as if the tower had eaten their names.
Data-scrolls raced across cracked displays in overlapping streams. Readouts fought vox traffic. Jumbled code scrolled in broken hierarchies. The whole room felt like a brain with too many thoughts and not enough sleep.
Koron moved through it with the ease of someone who understood machines as a second language. He pulled out a dataslate, slotted it into the console, and the interface chirped like it was surprised to be spoken to politely.
His fingers split into tines, sending commands across the display in rapid-fire bursts. Green acknowledgements stacked. Locks queried. Door trees mapped. Handshakes spoofed. He worked like he was playing a complicated instrument, the kind you could only master by bleeding on it.
‘Look,’ he said into the link, flicking a schematic up with a thought. ‘This is just a relay nexus. The real command center is up in the Girdle, and—’
‘And biosigns are pinging unknown everywhere,’ Sasha cut in. Her tone was dry, but Koron heard the sharpening under it. ‘Five bucks says unknown translates to Chaos.’
A grin tugged at the corner of Koron’s mouth, small and brief, like a candle flame in a storm. ‘I’m not taking a losing bet. No easy money for you today.’
‘Oh, come on.’ She sighed, all theatrical suffering. ‘Do you have any idea what decent makeup costs?’
‘I actually do,’ Koron said, eyes never leaving the scrolling code. ‘Seven sisters, remember?’ He paused half a beat, then added, softer without making it sentimental: ‘And you look great without it.’
‘You charmer.’
The banter was a thin scarf against the cold. It kept the edge of panic from biting too deep.
Commands poured up the pipe in a deluge as he opened locks and cracked doors, searching for gaps in the machine he could exploit.
‘This system is a mess,’ Sasha quipped as she fought alongside him to parse the feed. ‘I’m getting utter gibberish. Completely broken logic trees. Honestly it reminds me of the Indomitable’s systems, but worse.’
‘Yeah,’ Koron replied, watching clean green acknowledgements stack obediently across the screen, ‘but the weird part is the confirmations. They’re coming back.’
‘I agree. Let’s get a local testbed. Send a command to the console next to us. Tell that servitor to raise its right hand.’
Koron nodded and sent it.
The servitor jerked into motion, joints clicking. A wet, brittle crack popped from its shoulder. It raised its right arm with agonizing slowness, like it was remembering the idea of obedience one corroded movement at a time.
‘Okay,’ Sasha said. ‘So the system is reading and reacting to our commands. Might be something further up the tower, then?’
‘Maybe.’ Koron rubbed his chin, the motion automatic, his mind already leaping ahead. ‘Try something outside the vox system itself. Ventilation, for instance.’
He pointed, not to the far end of the room, but to a grated viewport cut into the wall beside the cogitators. Through it, in the adjacent service corridor, a fan bank sat in its housing. Blades still. Dust webbed across the cage like it had been dead for years.
‘Sounds good. Command sent.’
Red glyphs began to bloom across the screen in ugly clusters, system responses arriving late and malformed, like a stuttering priest trying to recite scripture with missing teeth. The console insisted—politely—that his request had been received.
Koron watched confirmations stack, eyes narrowing as the datastream flowed by without any change in the fan.
“What the hell?” he muttered. “Why are we getting false positives?”
‘No idea,’ Sasha said. The humor thinned. Work took its place. ‘Run a hardware check. Could be a damaged pathway to the vents. I’ll try another software route, same fan.’
Koron peeled away from the console and crossed to the grated viewport.
The service corridor beyond was dim, lit by intermittent lumen strips that buzzed faintly as if annoyed to be alive. The fan bank sat there like a dead clock. He crouched, fingers splitting again as he popped the access panel with a careful twist.
Behind him, Sasha’s voice clipped into focus. ‘Resending the ventilation command now.’
Koron didn’t answer. He was listening.
Not to her. To the machine. To the room. To the subtle shifts that lived below human senses.
As his shoulder crossed the threshold into the corridor, the air changed.
Not in a way skin could name. In a way his sensors always could. The world’s noise floor dropped. Like someone had shut a door on a storm. Like static had been peeled out of the air by an invisible hand.
The fan jerked.
Once. Twice.
Then it spun up hard, coughing dust into a sudden spiral that glittered in the weak light.
Koron froze, half in the corridor, half out, and felt the shape of the problem begin to rise inside his mind like a shadow standing up.
“That wasn’t your resend,” he said slowly.
Sasha’s voice sharpened. ‘Correct.’
On his slate, the fan controller’s log finally updated—one new line snapping into place with cold clarity.
EXECUTE // VENT-PRIME // CMD SEQ: 1147 // RECEIVED: +00:00:31
Sasha sounded almost offended, like someone had just lied to her in a language she invented. ‘It just processed the original command. Thirty-one seconds late.’
Koron stared at the spinning blades, then back toward the console that had been insisting everything was fine. The green confirmations, the polite pings, the neat, obedient yes sir yes sir yes sir.
His mouth went dry.
“It didn’t fail,” he murmured. “It couldn’t carry it.”
‘And then it could,’ Sasha said, quieter now.
Koron straightened, eyes narrowing as the conclusion assembled itself piece by piece, a weapon being built inside his skull.
‘Okay, test bed time.’ His voice had shifted into something harder.
He didn’t move for a moment, watching the blades spin as if they might confess.
‘Do it again,’ he said.
Sasha’s tone sharpened. ‘Parameters?’
‘Shutdown.’ Koron stayed by the fan bank, close enough that the air felt… quieter around him, as though the tower itself was lowering its voice. ‘Send the stop command and watch the log.’
‘Command sent.’
The fan didn’t even twitch.
Sasha made a small sound, half-annoyed, half-fascinated. ‘No execute flag. No receipt. It died somewhere between here and there.’
Koron’s jaw tightened.
He crossed the forty meters back to the console in long, silent strides. With every step away from the fan, the red glyphs in his peripheral vision thickened, blooming like a rash across the system feed. The farther he moved, the uglier the interference became. The closer he got to the console, the cleaner it looked, as if the room were remembering how to behave.
‘Send it again,’ he said, hands returning to the keys.
‘Shutdown resent.’
This time the console answered immediately.
COMMAND EXECUTED.
Clean. Polite. Obedient.
Koron looked up.
The fan kept spinning.
For a second he just stared, then let out a slow breath through his nose.
“It’s lying,” he said flatly.
Sasha’s voice went quiet. The last scraps of humor slipped away and didn’t come back. ‘Maybe it’s… partitioned?’
Koron watched the stream of confirmations stack up like good little soldiers. ‘I’m getting clean responses wherever I stand. The rest of the tower isn’t.’
A pause.
“And every time I move,” he added, the words tasting like rust, “the change moves with me.”
Sasha spoke first, low and steady. ‘Okay. That’s consistent with the evidence.’
Koron’s tines flexed, a faint metallic whisper. ‘So it isn’t the fan.’
‘No. It’s the path.’ She pulled up a routing overlay, painting it node by node, each connection lighting in sickly red with a few clean points standing out like lanterns. ‘When you’re standing at the console, this cluster behaves. Your presence suppresses whatever this is locally, so the machine answers you like it remembers what it used to be.’
Koron watched, jaw set, eyes narrowed to slits.
‘And when you’re standing at the fan,’ Sasha continued, ‘you’re cleaning that node instead. But the packets still have to travel through whatever is living in the trunk between them. The middle stays infected. So the command gets broken en route… or it comes back wearing a fake badge.’
Koron let out a low sound, almost a laugh, but there was no humor in it. ‘So everywhere I stand becomes the only honest place.’
Sasha didn’t deny it. ‘Your presence is creating clean islands. We’ll deal with why later. For now…’
She zoomed out. The highlighted nodes looked like stepping stones across a poisoned river. Beyond Koron’s immediate radius, the interference grew dense and ugly, like mold crawling through the spire’s nervous system.
‘I can route around damaged lines,’ Koron said, voice flat. ‘I can bypass locks. I can spoof a handshake. I can’t—’
‘Be in two places at once,’ Sasha finished.
Silence held for a beat, heavy as the tower’s walls.
Then she added, softer, like she was trying to dull the blade before she pushed it in: ‘We need a relay.’
Koron’s eyes narrowed. ‘Distributed operators.’
‘Yup.’ Sasha marked points along the Spine like stepping stones. ‘Someone at the console. Someone at the next node. Someone farther up. Hand-to-hand signal integrity. Purge teams at each station so the path stays clean long enough for your commands to traverse. If we can’t trust the noosphere, we build an air-gapped backbone.’
Koron stared at the diagram.
It looked less like a plan and more like a confession: this only works if people cooperate.
“That’s… a lot of people,” he said finally.
‘It’s a lot of distance,’ Sasha replied. ‘And the Legion knows it. That’s why they locked the Girdle. That’s where the Spine narrows and its brain sits. That’s where they can choke the whole tower with a handful of hardware gaps and a few good guns.’
Koron’s gaze drifted upward, as if he could see through kilometers of metal and cable and war. The Girdle. The choke. The place the loyalists couldn’t shatter without killing the spire.
He flexed his hands once, slow.
“Even if I purge this relay center,” he murmured, more to himself than to her, “it doesn’t matter. Not unless I can get teams positioned along the path.”
‘And keep them alive,’ Sasha said.
There it was. The real cost. Lives. Coordination. Orders. Trust.
Koron’s mouth went dry.
He could fix machines. He could fight monsters. He could do math until the universe confessed.
Convincing people to listen?
That was the only problem that didn’t care how smart he was.