Down the line of Guardsmen Venn walked, Marrick pacing at his side through the shell of the ruined cathedral. Their boots crossed cracked flagstones buried beneath dust, spent brass, and fallen chips of saintly stone. Above them, what remained of the vaulted ceiling vanished into shadow and broken ribs of masonry, sickly purple-pink light slipping through shell-holes high overhead in thin, cold shafts.

  At each stop a guardsman straightened and gave an awkward hop, webbing rattling, canteens knocking, loose buckles betraying themselves at once. Venn said little. He did not need to. A tilt of his helm or a tap of one gauntleted finger was enough, and Marrick moved in to strap the offending noise down before they continued.

  His fellow Astartes were likewise being seen to by the AdMech. Servos were oiled, power packs tuned down to low-output states, and padding wedged between plates wherever it would fit. Camo netting thrown over bright heraldry dulled the bold colours of their Chapter markings and helped break up those massive silhouettes among the cathedral’s fallen pillars and heaps of shattered stone. It was far from perfect, nothing like Venn’s own war-plate, but better than nothing.

  Then came the AdMech’s turn, and to no one’s surprise, it consumed nearly all the remaining prep time.

  Mechadendrites had to be oiled, servo-legs tightened, indicator lights covered, holy icons tucked beneath robes, and that was only the start. Robes were bound close so they would not catch against rubble. Censers were stowed. Loose cables wrapped down. Even then they clicked and whirred and muttered in little bursts of binharic static beneath the cathedral’s cavernous hush, as though offended by the very concept of subtlety.

  By the time they were done, the entire AdMech contingent looked like some heretical splinter sect, worshipping duct tape instead of the Omnissiah.

  The Vestige, on the other hand, simply vanished for a moment. Then Koron shimmered back into view, hovering half a foot above the cracked floor, dust undisturbed beneath him. In the dim cathedral light his metal limbs caught dull glints from the broken stained glass overhead, his silhouette more ghost than man for that brief instant.

  “I’d jump too,” Koron said, his metal arms lifting in a small shrug, “but I think you get the point.”

  ...

  Venn flicked his gaze to the chrono tucked into the corner of his HUD. The countdown numbers sat there like grit under a nail. Beyond the broken gantry frame, the zone stretched out. A full kilometer of flattened ruin, wide enough to feel like a dare. The twisted purple-pink sun, muted behind smoke and ash, crawled down the horizon with the urgency of a dying lumen strip.

  It was open ground with the kind of emptiness that made a scope feel smug. Traitor cultists and bombardment had smashed it flat, scraped it clean, and left only low humps of pulverized masonry and rebar stubble that offered nothing taller than a man’s shin. No walls or wrecks worth trusting. Even a careful crawl would draw eyes, and eyes out here had optics.

  So the plan balanced on other hands. Diversionary forces and nightfall. In twenty minutes a full company assault, backed by armor and close air, would hit the far side of the dead-man’s zone hard enough to make the horizon blink. Venn could almost taste the timing in his jaw, that familiar tightness before movement.

  He nodded once, more to lock it in than to reassure himself, then slid down from the gantry. Ceramite boots met steel with a dull clang; dust puffed and drifted off the edge in a thin sheet. He dropped the last meter to broken flooring, knees flexing, and moved along the interior shadow to rejoin the strike force.

  At the threshold he paused and looked back once. Below, mortals and Mechanicus held their lines the way you held your breath: tight, deliberate, and hoping it mattered. Guardsmen checked power packs by touch more than sight. A Skitarii’s head turned in exact increments, optic glow steady, servo-motors whispering as it re-aimed. A combat servo-skull hovered, weapon mounts ticking as they tracked nothing.

  He strode over to where his cousins had gathered in a loose circle near a partially shattered wall. They weren’t at rest, not really. They were simply waiting, each one watching the same invisible clock.

  On the deck between them sat a small pile: spice-packs, pinched and battered from ration tins, bright little hopes against the grey lumps that passed for food.

  “What is this?” Venn asked, gaze dropping to the heap.

  “We are wagering when you miss a cultist and raise the alarm. Otho says the sixth group we run into, and it will be five men.” Skaldi jerked a thumb toward the Imperial Fist. His heavy flamer hung at a ready angle, muzzle down but not relaxed. “I have the third group of four or more.”

  Rorik gave a faint snort through his helm’s vox grille. “Having fought beside the Raptors before, I place it on the ninth. Twelve foes or more.”

  Venn looked down at the spice-packs again. The plastic wrappers were scuffed; one had a corner torn where someone had sampled the dusting inside like it might be contraband joy. He reached into a thigh pouch, pulled his own free, and tossed it onto the pile. It landed with a soft slap.

  “I’ll wager this,” he said, “that our White Scars brother is the one who ruins the stealth approach.”

  Saran’s helm lifted a fraction, offended on principle, but his words were warm. “My cousin, your lack of faith wounds me.”

  Drex leaned forward, eyes finally leaving his dataslate. The glow reflected off his lenses as he looked at Saran. “You are the one wearing the jump-pack.”

  Saran held that for a beat, the pack’s mass a silent argument on his back. Then he shrugged and leaned into the broken wall, cracked stone grating against ceramite. “A fair point.”

  ...

  Crouched low, cloak dragging a soft hiss over flattened grit, Venn kept his shoulders tight and his profile as low as possible. His HUD held the route-map in the corner of his vision, a thin line creeping across a grid of ruins. Beneath it, the timer bled seconds with quiet cruelty.

  Helix’s warning sat in the back of his skull like a drilled litany: Seventy-second occlusion window. Thirty-five seconds for recalibration. When the mask drops, you do not fidget, adjust, or scratch your nose. You become rubble.

  So far their path had been clean. They had crossed the outer edges fast, not sprinting, but moving with that tight economy that pushed for depth, for the ugly safety of being too far in to be casually shelled.

  Across the dead-man’s zone the night burned bright. Anti-air guns stitched upward in hard white lines, tracers climbing and falling. Distant artillery walked the horizon in blunt flashes, each impact a muted thump you felt through your knees when you went prone. The air had that metallic tang that came when too much ammunition had been fired too fast.

  Here, the infiltrators worked in pulses. Crouch-run. Drop. Stillness. The last seconds of jamming ticked down and the whole line flattened without being told, forearms sinking into powder-fine rubble, armor plates settling with tiny clicks as they locked. When the occlusion ended, there was nothing to see but broken ground and a few darker shapes that could be stones.

  Then the minefields began.

  Rubble lay in uneven mounds, rebar hooked out of it, and here and there a patch looked wrong: too neatly scattered, too recently disturbed, a dust layer that didn’t match the rest. Venn’s HUD marked the suspected band in a thin amber haze, but that wasn’t comfort.

  He glanced back. The boy was there in the line, close enough to reach, helm low, posture relaxed in a way that didn’t belong in a place like this. Venn lifted two fingers and curled them in a short, sharp motion. Forward. Now. His vox stayed off; his voice, when he used it, was nothing more than air shaped between teeth.

  “Go.”

  Koron nodded once. With an ease that put a needle of irritation under Venn’s breastplate, the boy rose six inches off the earth as if the ground had forgotten to hold him. Dust didn’t puff under his boots because his boots never touched. Then his outline thinned and disappeared.

  A moment later, a narrow furrow appeared, dragged clean through the dust by an invisible hand. The channel bent left, then right, threading between dangers Venn couldn’t see. Grains of grit slid into the groove behind the motion, soft and dry, and every few meters the line paused for the barest heartbeat before continuing, careful as a blade tip searching for a seam.

  When the jammers spooled up again, the world filled with Helix’s manufactured lies: a wash of false returns and interference that made auspexes argue with themselves. Venn stopped halfway through the minefield, half-crouched, one knee sunk into powder, holding position as a living marker. Behind him his men took the furrow in single file, boots landing exactly where his stance and Koron’s line told them. At the far end Koron bled back into sight, hovering low, head turning as he checked the last stretch like it was a workbench.

  It went well. Which, naturally, meant it couldn’t last.

  A sharp metallic click snapped through the quiet, crisp as a spent casing hitting stone.

  Every helm turned. A red-robed Adept stood frozen mid-step, staring down at his cybernetic foot. His optical irises oscillated wildly, focusing, unfocusing, hunting for an answer in the dirt. His hands twitched once toward his thigh as though he meant to steady himself, then stopped, as if he had remembered the litany too late.

  Venn did not need to imagine the next seconds. He saw them in the angle of that foot and the tremor starting in the Adept’s shoulders. Panic. A reflexive hop. The mine’s breath. The flash. The scream that would carry, and then the perimeter opening up on them with everything traitor optics could bring to bear.

  Skaldi’s hand came down on the Adept’s shoulder, heavy enough to anchor, gentle enough not to jolt. His voice was a low growl through the vox grille, calm and assured, killing the panic before it could kill them all.

  “Easy, lad. Keep pressure on that foot. You’ll be fine.”

  Drex and Helix were already shifting back, but they were on the wrong side of the minefield and the clock was bleeding out. Venn’s HUD timer sat in the corner, accusing. Twenty-six seconds before the jammer swap, before everyone had to stop moving and become rubble again.

  Skaldi didn’t waste what little time they had.

  With his free hand he slid a knife into the dust beside the Adept’s boot, feeling for the mine’s pressure plate by touch alone. He pressed the blade down until the tremble in the Adept’s footing eased, steel taking enough of the load to matter. His other hand clawed at the rim of the mine, fingers carving a neat trench through powder and grit until the casing’s edge showed black beneath the dust.

  “Alright, lad,” Skaldi said, steady as if they were back in a training hall. “Move your foot. Slow. Then go prone.”

  The Adept nodded once, hard. “Thank you,” he whispered, his voice breaking on the second word.

  He eased his foot back, slow enough to hurt, then dropped flat the moment he was clear, chest pressed into the dust beside the line like he’d been ordered there by the Machine-God himself.

  Venn kept his eyes on Skaldi as the next seconds crawled. The occlusion faded. The world held its breath. Skaldi’s posture didn’t change. If anything, he looked mildly irritated by the inconvenience.

  A green rune blinked in Venn’s HUD. Clear to move.

  Skaldi acted at once. Two fingers replaced the knife, pinning the pressure plate in place while he drew the blade free and cracked the casing with two short twists. Inside, the wiring was crude and eager, the sort of workmanship that wanted to kill something more than it wanted to function. He snipped three wires in quick succession, then eased the mine out of its bed and set it gently into a patch of broken stone. Harmless now. Just another piece of trash in a field made of the same.

  Skaldi gave a thumbs up, then motioned the remaining men forward.

  Venn sent the line on, and somewhere ahead in the dark, the boy was already hunting the next problem.

  ...

  Venn slid in beside Koron behind the tiny mound of a pulverized wall, flat on his stomach, cloak gathered tight. Koron pointed without looking at him, two metal fingers angling toward a dark bite in the rubble ahead.

  Venn followed the line and found it.

  The lascannon nest sat low between two gutted hab-block shells, its barrel just visible beneath draped netting and soot-black cloth. Switching to thermals revealed the real problem. Four heat-shapes. One on the gun. One with magnoculars scanning the lane in slow, methodical arcs. The others sat lower, half-lost in the pit’s shadow.

  Venn’s jaw tightened.

  Auspex jamming could make machine-spirits chase ghosts and argue with false returns, but magnoculars were still magnoculars. Glass did not care about interference. Eyes did not care about signal wash. The spotter only had to sweep the lane once at the wrong moment and he would catch movement. One shape. Then three. Then eighty.

  For a moment Venn considered the ugly options. A thrown blade. Too far. A suppressed shot. Not silent enough, not with a full crew to react. A coordinated rush. Fast, brutal, and almost guaranteed to turn the dead-man’s zone into a kill-box before half the line was through.

  Beside him, Koron remained perfectly still.

  Venn glanced down at the boy, once more noting how the plates of his helm were too smooth, too precise for ordinary manufacture. More grown than built.

  “Any ideas?” he asked, barely above a whisper.

  Koron gave the slightest nod. “I can deal with it. Wait here.”

  Before Venn could remind him that no order had been given, Koron vanished, leaving only a faint swirl of dust to mark the displacement.

  For a moment that needle of irritation returned. Good thing Drex or the cogboys had not seen that.

  Venn steadied his optic, ready to put a bolt round through the nest if need be, and watched.

  Forty seconds passed without sign, long enough for even an Astartes to begin weighing failure.

  Then motion.

  The two nearest the lip of the nest went rigid without warning, bodies locking in place as though something invisible had wrapped around them without flare or sound. A heartbeat later, the gunner and the watchman followed.

  None of them managed to rise from their seats.

  The air beside Venn rippled, and the boy was there again.

  Venn let out the breath he had been holding and uncurled his fingers from the hilt of his combat blade.

  “All clear,” Koron said, already moving forward again.

  Venn shoved the blade back into its sheath with a hard, practiced motion. The scabbard caught for a half-beat on grit jammed into the latch, and he had to thumb it down with a quiet, irritated snap. Damn Dark Age tricks, he muttered under his breath, voice more breath than sound inside the mask of his helm.

  He rose and crossed to the trench line, boots finding the narrow path between broken earth walls as he entered the dug-up dirt. The air down here was different. Cooler. Damp in pockets. It smelled of churned soil and old propellant, and every step scuffed loose grains that slid back down.

  He cleared the lip into what had been a lascannon nest and stopped.

  Four bodies lay on the dirt, roughly cylindrical now, wrapped tight in thick pink foam. Their legs kicked and jerked in short, frantic spasms, boots scraping against the ground. Muffled shouts pressed through the packing like sound through a pillow, wet and desperate. One of them had rolled half onto a spent charge crate, the foam denting where the corner dug in, wobbling with each panicked twist.

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  Venn’s gaze flicked to Koron. The boy was crouched low at the trench corner, still, head angled toward the open approach. He wasn’t watching the prisoners. He was watching for the next problem. The foam gleamed faintly where it caught the weak light, and Koron didn’t spare it a glance.

  Venn didn’t hesitate. He stepped over the bound cultists with the casual economy of a man crossing debris. He drew his blade, leaned in, and drove it into each throat in turn. One stab per body. Quick, efficient.

  The foam trembled with each impact and then went slack. The kicking dwindled to small, useless twitches, then stopped entirely. When he withdrew the knife, tainted blood smeared dark against the steel; he wiped it along a strip of torn canvas hanging from the trench wall until the edge shone clean again.

  Behind him the rest of the strike unit flooded the nest, weapons up, muzzles tracking the angles that mattered. Servos whispered. A lasgun safety clicked off. Someone’s boot scuffed a loose helmet in the dirt and sent it rolling until it hit the foam-wrapped heap and bumped to a stop.

  Venn moved to the front of the position, ready to push them onward, and halted again.

  Koron had turned. He stared at the four still shapes. His helmet hid his face, but not the way his shoulders locked, or the way his hands hung too still at his sides, fingers slightly spread as if bracing for contact that wasn’t there.

  As the Astartes filed past, Koron reached out and caught Venn’s forearm. Metal fingers scraped ceramite, a dry sound in the cold night air. Koron didn’t look up.

  “They were no threat.”

  Venn glanced back at the foam-wrapped bodies, then at the torn earth around them. His posture shifted, a small hitch of confusion more than guilt. “They were the enemy.”

  Something in Koron’s cybernetic hand clicked, sharp and precise, like a relay resetting. His grip eased. A long breath left him, audible even through the filters. “Let’s just get on with this.”

  Venn pulled his arm free without force, took his place at the head of the formation, and let his cousins settle at his flanks. The trench walls pressed close on either side, and above them the sky was only a narrow strip of bruised night.

  Venn kept his eyes on the trench ahead and drove the line onward.

  ...

  The inner Chaos lines weren’t so different from Imperial ones as Venn would have liked. Tarps were strung between shattered walls to blunt the rain, tied off with cable and prayer-cord and whatever else a man could knot in the dark. Water drummed on canvas in steady taps, ran in thin sheets off broken masonry, and gathered in boot-sucking puddles where the rubble had settled. Men hunched over cook-fires with their shoulders up and their faces turned away from the wind, steam lifting from tin cups and dented pots as they warmed something that smelled like salt-fat and scorched starch.

  Somewhere deeper in the maze, soldiers traded insults in the flat, tired rhythm of men who’d forgotten what a full sleep felt like. A sentry leaned on a lasgun like it was a crutch, helmet unsealed, breath fogging in front of his mouth. A second man laughed once, sharp and humorless, then coughed until he had to spit into the mud.

  Then the wind shifted.

  It brought the stink with it, rot and old blood, heavy enough to coat the inside of a filter. Venn’s tongue caught a copper edge through the rebreather, and his nostrils burned like they’d been scraped raw. Beyond one row of shelters, a pit overflowed with butchered remains. Bone gleamed pale under flies and firelight. Something wet slid down the pile when the breeze worried it, and the insects lifted in a black shimmer, then settled again.

  From a cluster of gaudy tents, bright cloth hanging in strips like trophies, came spice and sweat and the too-sweet bite of cheap incense trying to cover worse things. Laughter spilled out, then weeping, then the pleading of men and women in the same broken cadence Venn had heard too many times to pretend it was anything else. A voice rose high, cut off abruptly, and the tent poles creaked as someone shifted inside.

  Venn tightened the spacing with two finger-signs, pushing them closer to tarp-shadow and smoke.

  He had ordered the direct march to the spire’s base because speed mattered more than elegance now. Keep to the shadows where the tarps sagged low and the fires threw smoke. Skirt the heavier entrenchments with the proper gun nests and the men who still cared. When a mortal fool drifted too close, he met them with a hissed curse and a hard shoulder, driving them away without breaking stride.

  That part came easily. When a cultist stepped into their path, half-drunk and proud of a stolen breastplate, Venn’s helm angled down and his vox grated a single word that sounded like a threat made physical. The man flinched, muttered an apology he didn’t mean, and backed away fast enough to trip over a coil of wire.

  In the end, it wasn’t their discipline that carried them through the camp. It was the enemy’s complacency, worn in the slouch of sentries and the lazy way men looked past anything that moved with purpose. They were inside the lines now and no alarm had been raised. Astartes led the column, and most cultists didn’t look too hard at armed figures moving with quiet certainty through the dark. Fewer still dared to ask questions when the answers might come in a voice like Venn’s.

  The Apron, twenty miles in circumference around the spire’s base, rose ahead of them, and the wind coming down off it hit like a wall. Venn’s optics dimmed as searchlights swept the ground in slow, mechanical arcs, bleaching rubble white, then letting it fall back into soot-dark.

  The great gates were manned thick: ranks of soldiers packed shoulder to shoulder, heavy weapon teams dug in behind sandbags, turrets and stubber nests bristling along the parapets. Men on the parapet moved in dense knots, their shouts lost under the sweep of the lights and the wind off the wall.

  At the center of it all the spire itself speared upward. From this distance it was a lance driven into the city, and the city flowed out from it in broken blocks and stacked ruins, plumes of smoke caught between them like gutters.

  They came to a stop in the shadow of a collapsed hab-shell, where the searchlight sweep skipped over them for a few seconds at a time. Koron and the Mechanicus moved first. Plasma torches flared to life, too bright, too clean, so the Guardsmen threw up a tarp to hood the light, hands working fast with clips and cord. The tarp snapped once in the wind and then held, rain tapping against it in quick, nervous beats. Under the canvas, blue-white glare pulsed and softened, throwing warped shadows of augmetic arms over adamantine plate.

  As the cutting began, the perimeter formed by habit. Guardsmen fanned out, boots scuffing grit, muzzles covering angles. A Skitarii’s optics swept in precise increments. Venn watched the searchlights and counted the rhythm between sweeps, timing his breathing to it, listening to the muted hiss of plasma and the occasional spit as molten metal hit wet stone.

  Koron’s voice touched the command vox, calm and close in Venn’s ear. “So, a thought occurs that even once we are inside, there’s still going to be roughly three miles of city to cut through as the crow flies, if we’re lucky.”

  “…What is a crow?” asked a quiet Mechanicus voice, as if requesting a unit conversion.

  Venn’s helm angled a fraction toward the tarp’s glow, then back to the searchlight rhythm.

  No one answered for a moment. Venn could hear the work instead, the low roar of the torches, the faint whine of an auspex, a Guardsman’s suppressed cough.

  Marrick finally spoke, tone flat with fatigue. “Yeah. It’s gonna be shit. Do you have something in mind or just stating the obvious?”

  “I do, as a matter of fact,” Koron replied immediately, like he’d already arranged the idea in his head and was only waiting for the door to open. “You're not covered enough to pass for Chaos agents up close, and the city is going to be up close. I suggest we dirty up the armor, slap some cloth over your chapter markings, and take some scrap metal and put it over your armor. Not attached to it—just resting.” A beat, then the quick add, almost defensive. “I know how important your armor is, so I’m not suggesting we actually desecrate it. Just put a disguise over it so you guys will look like traitors at a distance. Same with the Guard and the cogboys.”

  Venn chewed that for a long moment, jaw shifting once inside his helm. He could already hear Rorik’s objection before it was spoken, and Skaldi’s laughter after. The city beyond the Apron churned in his mind as his HUD painted faint cones where the searchlights would be in twelve seconds, and he watched the gaps instead of the beams.

  Rorik spoke first, exactly as expected. “I have little desire to put anything like traitor sigils on my person.” His head dipped a fraction, as if he were speaking to the idea rather than the boy. “But… if the disguise is easy to remove, and does not hold the actual sigils on it, I would tolerate such a tactic.”

  Venn nodded once. “Agreed. No actual markings of the Ruinous Powers upon our person.” His gaze flicked toward the walls—spikes and chains silhouetted against the searchlights, hooks welded along the parapet, the enemy’s favorite vocabulary made into architecture. “But the traitors’ love of ornamentation is well known. An additional layer of protection.”

  He turned his helm slightly toward where Marrick and Helix stood under the tarp’s edge, watching the cut and watching the clock. “Lieutenant, Archmagos?”

  Marrick shrugged, shoulders rolling under his wet cloak. “Some of the boys won’t be happy, but I’ll smack ’em into compliance.” He jabbed a thumb toward the spire, the gesture sharp. “Just—like you said—no actual marks.”

  Helix did not shrug.

  He stared at Koron as if the boy had suggested drinking machine oil for morale. Even through his mask you could see the tension in his neck servos, the way his mechadendrites flexed and then went rigid. For a long moment he said nothing at all, letting the plasma hiss fill the space. When he finally spoke, it came out like a compromise forced through teeth that weren’t there anymore. “My people will require time, after the discarding of the disguises, to sanctify ourselves and our equipment.”

  “How long?” Venn asked, immediate, practical.

  “A few minutes. Nothing more,” Helix answered, as if the number pained him.

  Before Venn could answer, boots splashed somewhere beyond the hab-shell, close enough that every man under the tarp went still. A voice muttered outside, too low to catch. Another answered with a laugh that turned into a cough. Light passed over the edge of the ruined wall, then moved on. No one breathed until the footsteps faded back into the rain.

  “Agreed.” Venn said at last, as if the interruption had never happened. He lifted two fingers in a short directive toward Helix. “Begin, then. Several of your adepts can finish before the cutting team is through.”

  “Speaking of,” Otho said. He adjusted the fortification pinions at his waist a fraction, the little clamps clicking as they seated. Even in the dark, the motion was precise, like he couldn’t help tightening the world into order. “I would advise a change in marching order.”

  Saran’s jump pack gave its quiet, patient thrum behind him, a vibration you felt more than heard when the damp air carried it just right. He tilted his helm a touch toward Otho and let out a low chuckle. “Oh? What do you have in mind?”

  “Let the Guardsmen take point,” the Fist replied. His voice was steady, the kind that carried even when he kept it low. He nodded once toward the perimeter where Marrick’s men crouched under tarp-shadow, checking straps and re-seating bayonets with fingers gone numb from rain. “They escort the Mechanicum under some miserable pretext while we keep to the shadows. Six Astartes will draw eyes even in disguise, and eyes remember. Guardsmen saddled with an unpleasant detail are far less remarkable.”

  Marrick’s thumb rubbed at a worn patch on his rifle’s paint, smoothing nothing, just giving his hand something to do. He nodded slowly, eyes tracking the searchlight sweep beyond the broken wall and the thin window of darkness between passes. “Yeah. That could work.” He glanced toward Helix and hitched one shoulder in a half-shrug. “What do you say, Archmagos? Think you can come up with a reason your lot’s headed for the spire?”

  “Maintenance. Repair. Placation of the machine spirits.” Helix didn’t look up. His attention stayed on the scrap plate he’d laid over Drex’s pauldron, where spikes and hooks were being fastened into place. A bright bead of weld crawled along the seam, blue-white under the tarp, and the smell of hot metal pushed through the damp like a bitter gust. “Any number of rationales present themselves. Preventative maintenance alone should suffice.” He paused just long enough to lift the torch, inspect the join, then set it down again with a controlled hiss. “Anything built at that scale is never truly finished being repaired.”

  Marrick straightened, rising to a half-stand so he could see the whole group. The makeshift plates and ragged cloth did their best to swallow the brighter heraldry of their armor: mud smeared over knee guards, strips of canvas tied across chest icons, chains draped without symbols, spikes crude enough to read as traitor from a distance without being anything specific. Rainwater ran in thin lines down ceramite and dripped off the lowest edges, tapping softly on stone.

  “Then,” Marrick said, eyes flicking from one helm to the next, “my lords, if I say barbiturates, that means the quiet part’s over.”

  No one laughed.

  Then the cut plate sagged inward, and the dark beyond opened.

  ...

  The Apron unfolded across Venn’s HUD in clean lines and measured angles, a planner’s city wrapped tight around the spire’s root. On paper it was orderly: service corridors stitched between logistics blocks, secondary skybridges linking hab-stacks to maintenance towers, narrow feeder roads branching off the main transit lanes like capillaries off an artery. The icons were crisp. The geometry obeyed.

  The real thing didn’t.

  Ruins sat on top of the diagram like a smear of ash across a lit screen. Whole sections had been blown open or burned hollow. Roads ended in shell-craters that still held black water. Bridges hung broken in the air, rebar teeth exposed, or had collapsed and punched through the floors beneath them. Barricades and gun pits cut across avenues the map still insisted were clear, the HUD lines running straight through concrete piles as if denial could make a passage.

  Venn didn’t take the routes that looked efficient. Efficient routes got used. Used routes got watched. He let his gaze slide past the bright lanes and the wide approaches, and instead hunted for damage that hadn’t quite become destruction: a maintenance cut too narrow for a column, a stairwell blown out on one side but still climbable, a service trench half-collapsed and forgotten. Paths that were awkward enough to be ignored and intact enough to take a man through.

  Worse than the rubble were the altars.

  Chaos never missed an opportunity. In the encampment outside, the offering pits had been muted by necessity: sightlines, armor lanes, the dull requirements of moving an army. Fires were kept low. The worst of it was tucked where it wouldn’t snag a track or block a convoy.

  Inside the Apron there were walls, and corners, and a thousand places to build a shrine without ever touching a roadway that mattered. The worship spilled into every sheltered space like a flood finding basements.

  Venn caught it in flashes as they moved: a gladiator pit sunk into a maintenance bay, waist-deep in dark blood that clung to skin and reflected light in greasy ripples. A ring of cheering bodies pressed against a chain barrier, their faces lit by lumen-strips scavenged from somewhere better. The air there was copper and hot breath and promethium smoke.

  Two streets later, a garbage mound festered against a collapsed culvert. Bloated corpses were being rolled down into the waterway with hooks, the canal already choked with scum. Along the edges, twisted growths had taken root, purple-black fronds that flexed when the wind hit them and spat a thin, chemical mist that burned the back of Venn’s throat even through his filters. The runoff stank of rot and solvents.

  And then the noise. It wasn’t music so much as assault: bass that punched through ribs, metallic shrieks layered over it, the kind of volume meant to erase thought. In the lee of a hab-stack, bodies writhed in a mass of sweat and body fluids, fingers gripping hips, breasts or limbs, mouths open in laughter or sobbing or both. Drug-smoke drifted in low clouds, sweet and rotten at once, and someone’s mask lay trampled in the mud like a discarded skin.

  Only the Tzeentchians were absent in person, but their handiwork made their borders obvious. Blue light leaked from broken windows in steady, unnatural bands. Crystals webbed over doorways and wrapped whole rooms in facets, trapping furniture and bodies alike in frozen distortion. Even at a distance Venn’s optics twitched, auto-adjusting against glare that didn’t behave like firelight.

  He marked those zones without slowing and kept searching his HUD for routes no one bothered to watch. The map scrolled under his eye in pale lines, recalculating around collapses and red hazard blooms, while the real streets shifted in smoke and broken concrete. He chose the uglier lanes, the ones that stank of stagnant water and had too many blind corners for comfort, because comfort drew patrols.

  He and his cousins kept, as best the terrain allowed, a street over from the mortals. Close enough to fold in if something went wrong, far enough that six armored silhouettes didn’t become the obvious center of attention. They moved in parallel through gaps in rubble, crossing where a collapsed skybridge cast a long shadow, pausing under a sagging tarp when a searchlight swept the main road ahead. Venn’s helm would tilt once, a single silent signal, and the others flowed with it.

  Helix had twisted himself into the lie. He’d risen to the limits of his mechanical legs, pistons extended, making himself tall and wrong. His back arched deep, robe pulled tight across metal ribs, and his forest of mechadendrites waved above him in slow, agitated arcs, each tipped with a tool or a probe that clicked and whirred as it reoriented.

  Around him the rest of his adepts mirrored the posture, joints locking into angles that weren’t meant for comfort. Their bodies twisted into something more inhuman, and their vox-emitters poured out binharic screeches at anything that moved, bursts of machine cant sharp enough to make nearby cultists flinch and look away.

  The effect worked. People gave them space the way they gave space to a leaking promethium line.

  The Guardsmen plodded along behind the Mechanicus with the bored, dead-eyed look of men assigned to an unpleasant duty and told not to complain about it. One kept his gaze fixed on the back of the Adept ahead of him, jaw working slowly as if he were chewing grit. Another rolled his shoulders under a wet cloak and stared at nothing in particular, hands steady on his rifle, as if he were weighing two bad options: endure another minute of shrieking binharic, or end up on a block with an axe and an audience.

  Several of them didn’t look like it was very hard to pretend.

  Time and distance passed in the way it always did on an approach like this: measured in corners, in pauses under tarp-shadow, in the brief flare of a searchlight on wet stone before it slid away again. Venn kept one eye on the HUD’s clean lines and one eye on the street’s messy truth, guiding his strike force deeper into the bowls of the Apron until the map stopped being streets and started being seams.

  Then they hit the next obstacle.

  The lower gates to the spire were fortified into something closer to a front line than an entryway. Checkpoints stacked in depth. Guards posted in overlapping arcs. Hardpoints cut into the approach, heavy weapons set to rake the open ground, auspex arrays perched above it all like watchful insects. Even at this distance Venn could see the pattern: layered barricades, firing steps, lanes cleared of rubble so nothing could crawl close without being seen.

  He sank into the alley’s shadow and stayed there, letting the darkness and dripping brick swallow the shape of his armor. Rain pattered on a hanging cable above him; water ran down the wall in thin tracks and pooled in a shallow channel at his boots. He stared at the defenses for a long moment, taking them in without moving his head too much, then turned back to the circle of helms and hoods.

  “Suggestions?”

  Drex spoke first. His servo-arm hitched once, the joint whining softly as it reoriented. “We split.” He gestured to the Astartes with a small tilt of his helm. “We make for a maintenance duct nine floors down.”

  An incomplete under-structure model bloomed across Venn’s HUD. The view peeled away from their current street into the under-structure beneath it: stacked sub-levels, cable runs as thick as tree trunks, maintenance bridges and service cavities layered over centuries of construction. A dot marked their present position, then sank through levels in a clean vertical line, angling through access tunnels that were little more than bones of the city.

  “Most likely entry is here, with a seventy-four percent chance of undetected ingress.” Drex continued. The dot descended, then crossed open air along a span of cableworks, tiny against the dark drop, until it reached the spire’s superstructure. “Once here, we rappel down, open the hatch, and enter.”

  Rorik’s helm turned toward Venn, vox rumbling low. “Possible for us. The Guardsmen will have much more difficulty.”

  Marrick didn’t argue. He just shrugged, wet cloak shifting on his shoulders. “Yeah. The winds alone would take a few men.” He squinted at the wireframe, thumb tapping once against the side of his rifle. “And the drop is what, four hundred feet? Most of my boys don’t climb anything taller than a hab stairwell.”

  Helix answered without ceremony.

  “Proposal.” The Archmagos’s head inclined a fraction, neck servos giving a faint click. “The Guardsmen continue their accompaniment of my people. Low-level communications indicate a maintenance crew due in from the outer works. We intercept them and acquire their access modules.”

  Marrick’s eyebrows rose despite himself. He stared at Helix like he was trying to decide if this was genius or madness. “You want to bluff our way through?”

  Helix nodded once. “Correct. A two-fold approach increases chances of entry.”

  “And the reason for us following you?” Marrick asked, eyeing the projection again, eyes narrowing at the neat little dot slipping through a city’s guts.

  “Additional reinforcements due to Imperial attacks,” Helix replied. His mechadendrites shifted behind him, tools reorienting with small clicks as if they approved. “Last-minute orders. I can falsify them if I have the work crew’s noospheric imprints.”

  At the edge of the circle, the Vestige spoke up, voice angled to keep it low. “And where do you want me?”

  “Us,” Venn said instantly.

  If the stranger became a problem, Venn meant to be close enough to solve it.