Under the agreed terms of negotiation, the entirety of the First Legion was granted unrestricted and unsupervised passage through the Lower Hive.
For most Imperial commanders, such a concession would have been unthinkable. Armed soldiers moving freely through the lower districts without escort, without local oversight, and without a dozen layers of noble permission would have been treated as a security disaster waiting to happen.
But the Lower Hive had already learned what the First Legion was.
They were not merely another regiment. They were the men who had climbed out of the Underhive when the authorities above had written them off as dead. They were Qin Mo's soldiers. They wore armor that common men should not possess, carried weapons that made gang arsenals look like children's toys, and served a commander who had turned a buried deathtrap into New Kato.
So the gates opened.
For the first time in years, the soldiers were permitted to return home, to see their families, to breathe the thick, smog-tainted air of their past lives.
To remember what they had left behind.
Some returned to hab-blocks where the same cracked lumen-strips still flickered above the same rusted stairwells. Others found their old corridors repainted by gang colors, sealed by quarantine warnings, or swallowed by fire damage that no one had bothered to repair. They passed shrine alcoves where their mothers had once left candle stubs, ration queues where they had once fought for corpse-starch, and water stations where men had killed for a clean cup.
The Lower Hive had not changed for them.
They had changed.
They were even given the option to leave military service entirely, though for most, the choice was meaningless.
Aside from a handful of officers from noble families, the majority of the First Legion had only one goal:
To bring their families to New Kato, the promised haven where unlimited fresh water and food awaited them.
Fresh water. Real food. Stable shelter. Work that did not end with a corpse in a sump drain.
To the people of the Lower Hive, those were not luxuries. They were miracles with walls around them.
Within two days, nearly every soldier had returned, their loved ones in tow, gathering at the sealed Underhive entrance.
The crowd stretched across the transit concourse in uneven clusters: old parents wrapped in patched coats, hollow-eyed wives carrying infants, younger siblings clutching bundles of clothing, wounded cousins limping on scrap-metal crutches, and suspicious neighbors who had decided to risk everything because one soldier they trusted had said New Kato was real.
At the entrance, First Legion personnel worked in controlled lanes. Every civilian was identified, scanned for infection, checked for concealed weapons, and questioned just long enough to catch obvious lies without turning the process into Administratum torture. Medical servitors and human medics moved among them, marking the sick for treatment rather than rejection. Logistics drones carried water canisters through the crowd, and more than one Lower Hive family wept openly at the sight of clean water being handed out for free.
Where, one by one, they were processed, scanned, and transmitted to New Kato.
But not everyone found their families.
Like Grot.
Grey spotted him near the edge of the transit district, sitting atop a weathered bunker that had once guarded a freight junction. The bunker's paint had peeled away in strips, leaving rust beneath old warning sigils. Its gun slits were empty. Its roof sagged slightly under Grot's weight, but the big man sat there as if the decaying structure deserved no more consideration than a stool.
His massive frame was slouched forward, elbows resting on his knees, hands hanging loose between them. That alone told Grey something was wrong. Grot was rarely still unless he was sleeping, waiting to kill something, or thinking thoughts too heavy to throw away.
Without hesitation, Grey leapt up, landing beside him.
"What's wrong, brother?"
Grot's voice was low, heavy.
"I didn't find them."
Grey's expression hardened.
"They lived in District Fourteen," Grot continued. His eyes did not leave the street below. "But when I got there… nothing."
He swallowed once, the motion small but visible in the hard line of his throat.
"Our home was rusted, covered in mold. They've been gone for a long time."
Grey knew about Grot's family.
A brother. A sister.
Survivors, like him. Strong survivors. Hiveborn and proud.
They shouldn't have just... vanished.
In the Lower Hive, people vanished every day. Debt collectors took them. Guild press-gangs took them. Gangs took them. Disease took them. Sometimes hunger did the work without anyone needing to lift a hand.
Grey knew all of that. Grot knew it too. That was why neither of them said it aloud.
Grey struggled to find the right words.
"Maybe… maybe they're still out there. Maybe they're just wandering the Lower Hive, trying to get by."
His voice faltered.
"I don't know what to say, Grot. I just… I just want you to know I'm here for you."
Grot turned to him, his usually stoic expression unreadable in the amber glow of broken lumen-strips hanging from the spire columns above.
"Did you bring your family to New Kato?"
Grey nodded.
"Yeah."
For a moment, Grot said nothing. Grey braced himself for anger, envy, or the bitter silence of a man too wounded to trust his own mouth. Instead, Grot reached out.
Grot gripped his hand, their combat-scarred fingers locking in silent solidarity, then knocked their shoulders together in a gesture of bond and battle.
Then, silence.
No more words were needed.
A heavy, unspoken understanding settled between them.
Grey had found his people. Grot had not.
Neither fact needed forgiveness.
A familiar voice broke the moment.
"Come on, let's go check out District One."
Grey and Grot glanced down.
Klein stood below, grinning up at them.
He wore a coat too fine for the Lower Hive and boots that had never been designed for sump-grime, though both had been scuffed, stained, and battered enough by recent events to make him look almost respectable. Almost.
Grey raised a brow.
"Klein? Thought you weren't coming back."
He had assumed that someone like Klein, a noble, would stay in the Upper Hive.
After all, New Kato was superior to the Lower Hive, but compared to the Spire Lords' luxury?
It was nothing.
Klein shrugged, the gesture laced with something bitter.
"The idiots in my family think I'm insane. They refused to come to the Underhive with me."
His voice dropped, the grin fading slightly.
"I don't want to talk about it."
Grey studied him for half a second longer. Klein's smile was back in place, but it sat wrong on his face, like a mask fastened too tightly. For all his noble blood and polished manners, he had returned alone too.
No one pushed further.
Instead, Klein's grin returned, lighter this time.
"Let's just enjoy ourselves. We fought a war for almost two years. We deserve some fun."
Grey frowned.
"District One? That's gang territory."
For the average citizen, District One was a death sentence.
Even the most hardened criminals were stripped of everything the moment they set foot inside.
Klein's smirk widened.
"It's dangerous… for most people. But for men with money and influence? It's a paradise."
He stepped forward, gesturing broadly.
"Trust me, we'll be treated like honored guests."
Grey hesitated, glancing at Grot.
Klein, ever the persistent one, pushed again.
"Come on, Grot. Who knows? Maybe your family joined a gang. This might be the best chance to find them."
It was meant as a joke.
But Grot considered it.
His brother was strong, more than capable of surviving.
If he had joined a gang…
It wouldn't be surprising.
In the Lower Hive, joining a gang was not always a fall from grace. Sometimes it was the only way to keep a sister fed, a door locked, and a knife out of your back.
Without another word, Grot stood, stepping down from the bunker.
Grey sighed, following him.
Together, they headed toward District One.
....
Lower Hive: District One
District One was a festering artery of crime and excess, a labyrinth of twisting alleys, towering hab-blocks, and smog-choked manufactorums.
Flickering neon sigils advertised everything from pleasure dens to illicit tech-markets, their glow barely cutting through the ever-present haze of chem-waste and engine exhaust.
In the depths below, sump-rats the size of hounds prowled refuse-choked alleys, while overhead, rusting walkways crisscrossed the skyline, home to snipers, lookouts, and those too desperate to live anywhere else.
The district breathed like a living wound. Steam vented from cracked pipes. Music thudded from hidden dens beneath the streets. Vendors called from armored stalls, selling black-market augmetics, counterfeit purity seals, stim-injectors, gene-tonics, stolen PDF ammunition, and food whose origin no sane man questioned too closely.
Gang colors covered every surface. Red handprints. White skull marks. Blue circuitry spirals. Crude saints with knives instead of halos. Every gang wanted to be seen. Every gang also wanted everyone else to know exactly where their territory ended and the killing began.
It quickly became apparent that the gangs of District One were eager to curry favor with the First Legion.
They treated them as warlords, their mere presence enough to make the hive-scum bow. Every ganger, cutthroat, and augmetic-riddled brute they passed showed deference, their usual bravado replaced with wary obedience.
Men with chainblades lowered their eyes. Lookouts vanished from balconies after sending frantic hand-signals down the street. Dealers swept contraband into drawers and then immediately pulled out better stock, realizing these were not Arbites to be bribed or avoided, but potential patrons too dangerous to offend.
Even without Klein spending a single Throne, they were treated like nobility.
A woman, her entire body cybernetically modified for aesthetic perfection, was assigned as their personal guide.
Her skin had been replaced in places by polished synth-flesh the color of pale marble. Her eyes shone with soft violet optics. Silver cabling ran along her neck like jewelry, and each movement carried the faint hydraulic grace of expensive work performed by someone who had cared more about beauty than battlefield durability.
She led them through the neon-lit streets, ensuring they experienced the best District One had to offer.
The spires above were lost in the ever-present smog, while below, the underbelly of the hive pulsed with sin and excess.
It was a perfect night.
Drinking. The kind that burned and left lesser men blind.
Exotic food: cooked grox meat, fermented fungus paste, and nutritionally boosted offworld fruits, imported at obscene cost.
Klein sampled everything with the confidence of a man raised around poison testers and noble banquets. Grey ate cautiously at first, then with growing enthusiasm once his armor's scanners stopped screaming about contaminants. Grot barely tasted anything. His eyes kept moving through the crowds, lingering on broad shoulders, familiar gaits, faces half-hidden beneath scarves or gang masks.
He was searching without admitting it.
The gangs of the Lower Hive were eager to impress. They met several major gang bosses, each one eager to curry favor, each one ensuring their every whim was met.
Everything was free.
Free drinks. Free food. Free escorts through guarded territory. Free information, though most of it was offered too quickly to be trusted.
A hook-handed boss from the Iron Vultures swore he knew every family displaced from District Fourteen, then named three streets that had not existed in twenty years. A chrome-jawed woman from the Black Lanterns promised to circulate Grot's description of his siblings, but her eyes flicked toward Klein's coat when she said it, measuring payment that had not yet been offered. A scarred chem-baron laughed too loudly and insisted District One took care of its own, which Grey understood to mean that bodies were disposed of efficiently.
By the third den, Grey had stopped pretending to enjoy the attention. Klein seemed lighter with every cup, laughing too often, spending nothing, charming everyone, and carefully avoiding any mention of his family.
Grot remained quiet.
....
The Arena
For their final destination, their guide escorted them to the gladiatorial pits, one of District One's greatest attractions.
The arena had been built inside the hollowed shell of an old freight distribution hub. Its upper gantries had been converted into viewing galleries, private boxes, betting booths, and pleasure lounges. The cargo floor below had become a killing field covered in stained sand, welded scrap, old blood, and drainage channels that carried the night's remains somewhere beneath the city.
Thousands packed the stands. Gangers, merchants, guild factors, off-duty enforcers, bounty hunters, debt brokers, and thrill-seekers from districts that pretended to be cleaner than this one. Their shouts merged into a single hungry roar that shook dust from the ceiling beams.
A high-class private suite awaited them, lined with silken banners and its vantage point offering a perfect view of the bloodstained sands below.
The suite smelled of incense, expensive liquor, weapon oil, and perfume strong enough to cover the copper stink rising from the pit. Armored glass protected the viewing balcony. Servitors stood in alcoves with trays of food and drink. A private betting cogitator occupied one wall, its display scrolling fighter names, odds, injury records, and kill histories in bright red script.
"Bet well, honored ones," she purred, handing them cred-sticks glowing softly with verified balance markers, each worth a Leman Russ's weight in gelt. "Each of you has a wagering credit of ten thousand Thrones."
She smiled, the faint hum of her augmetics barely audible over the rising clamor of the crowd.
"A gift from the arena. Win, and you'll take home far more. Lose, and you still walk away with a thousand Thrones in your pocket."
Klein raised an eyebrow, amused.
"That much? That's enough to feed an entire regiment for a month."
"A small price for goodwill," the guide replied. "District One remembers those who survive history."
Grey did not like the way she said it. In the Lower Hive, compliments often had hooks buried under them.
Grot eyed the tokens, then randomly picked a name from the roster.
"Heavy Hammer. Sounds good."
Grey and Klein exchanged glances, then shrugged.
Neither recognized any of the fighters.
"I'll bet on Heavy Hammer too."
"Same."
Their guide logged the bets into the system with a flick of her wrist, her interface implant pulsing softly.
The cogitator accepted the wagers with a low chime. Above the arena, the odds shifted. Somewhere in the stands, men shouted as the sudden movement on the betting board sent smaller gamblers scrambling to adjust.
As the arena lights dimmed, the vox-casters roared to life, shaking the very walls of the stadium.
"Introducing tonight's most anticipated fighter…!"
A dramatic pause.
"Grox! Grox! GROX!"
The crowd erupted.
A monstrous brute emerged from his holding cage, his cybernetic frame gleaming under the spotlights. Two meters tall. Armor plating fused directly into his body, his arms surgically replaced with massive blades.
The modifications were not clean military work. They were pit work: brutal, effective, and meant to terrify as much as kill. Steel plates had been bolted through muscle. Injector rigs pulsed along his spine. His jaw had been reinforced with a crude metal brace, and combat drugs pumped visibly through transparent tubes buried beneath his skin.
He roared, raising his blade-arms in challenge.
The cheers intensified.
Klein leaned back with the bored interest of a noble watching a familiar vice dressed in new blood. Grey watched the arena exits, the guards, the weapons, the crowd, and only then the fighter. Grot watched Grox for three seconds, judged him dangerous, and lost interest.
Then, the announcer spoke again.
"And now… the fool who will be slaughtered by Grox!"
"Heavy Hammer!"
The second gladiator entered.
Compared to Grox, he was pathetic.
One arm flesh. One arm crude cybernetics, a botched, haphazard augmentation clearly done in a back-alley shop.
His body bore the telltale scars and cybernetics of desperation, a man who had sold himself to survive.
He carried a heavy industrial hammer in both hands, though the weapon looked less like proper wargear and more like a factory tool modified until it became illegal. The haft was wrapped in old grip tape. The head had been reinforced with welded metal plates, each one pitted from use. A weak power cell had been strapped near the base, feeding a flickering impact assist that looked one hard blow away from failure.
He walked with a slight hitch in his left leg. Not enough to cripple him. Enough to show old injury, bad repair, and years of work done through pain because stopping meant starvation.
Klein muttered, his voice laced with disinterest.
"He's a Deep Pit Slave."
"What's a Deep Pit Slave?"
Grey frowned.
"Never heard of it."
Klein scoffed, leaning back.
"You haven't heard the term, but you've seen them." He gestured vaguely at the hive below. "Some guilds manipulate people into debt. The debt is impossible to pay. And when they can't… the guild 'generously' offers a solution. They get 'enhanced' for factory work. Cybernetic labor slaves."
Grey grimaced.
"And some escape, becoming gladiators. Until they die."
Klein's mouth tightened. For once, his sarcasm failed to arrive quickly enough.
"Some do not even escape," he added. "Some are sold directly by the guilds once their bodies are too damaged for profitable labor. Arena owners buy them cheap. The crowd loves a tragic underdog, especially when the underdog bleeds convincingly."
Grey looked down at the man in the pit with fresh disgust, though he was not sure who deserved it most: the guilds, the arena, the crowd, or himself for sitting in a private suite and watching.
Grot remained silent.
The arena felt distant, the gladiator's face obscured by the harsh glare of the lights.
But his build… his posture…
Something felt familiar.
Heavy Hammer shifted his grip on the weapon. Left hand high, right hand low. Shoulders squared despite the bad leg. Chin tucked in the way Lower Hive brawlers learned after one too many bottles broke against their teeth.
Grot's breath stopped.
The noise of the arena dulled around him. The cheers became vibration without meaning. The bright betting displays, the guide's perfume, the heat from the lamps, Klein's muttered commentary, Grey's presence beside him, all of it seemed to move farther away.
The gladiator turned slightly, enough for the light to strike the side of his face. Not clearly. Not enough. A scar crossed his cheek where there had once been none. His hair had been shaved down to stubble. The crude augmetic had altered the line of one shoulder. Years of hunger, labor, and pain had changed the body beneath the skin.
But some things did not change.
The way a man braced before a fight.
The way he lifted a hammer.
The way he refused to bow even when everyone in the room had already decided he was there to die.
A slow, twisting unease settled in Grot's gut, crawling up his spine like ice-cold steel.
His hands tightened into fists.
And for the first time that night, he wasn't enjoying himself anymore.