The teleportation field shimmered with a low electric hum. For a heartbeat, the air inside the fortress bent inward, blue-white light crawling over the floor plates and across the reinforced walls. Then the field collapsed with a crack of displaced pressure, leaving behind the bitter smell of scorched ozone.
Grey stepped out of the fading light with practiced silence. His armor was streaked with soot, ash, and the dried residue of battle. Burn marks scarred one shoulder plate. A smear of something dark had hardened along the edge of his gauntlet.
Heavy Hammer was dead.
The slums of District One had been purged.
Two objectives. Two completed missions.
By any military measure, Grey should have reported success, received his next order, and moved on. Instead, he stood for a moment longer than necessary, helmet still sealed, body rigid beneath his Thunderborn-pattern warplate.
Then he removed his helmet.
The locks hissed open. Grey's face emerged into the cold light of the workshop chamber, pale beneath grime and old blood. His jaw was clenched so tightly that the muscles near his ear jumped.
His storm-grey eyes did not carry triumph. They carried the look of a man who had done the necessary thing and found that necessity offered no comfort afterward.
Qin Mo barely looked up from his workbench.
The chamber around him was part command room, part laboratory, part armory, and part shrine to practical heresy. Tools lay arranged by purpose rather than ritual. Holographic schematics hovered above half-assembled devices. Servo-arms moved silently along overhead tracks, carrying precision components between benches. The air smelled of hot metal, coolant, charged capacitors, and the sterile bite of machine-cleaned surfaces.
Qin Mo adjusted a focusing lens no larger than a fingernail, set it into a circular housing, and only then spoke.
"If you have something to say, Grey, say it."
Grey inhaled. The breath caught behind his teeth. Instead of answering, he glanced toward the corner.
Yoan sat there with one boot propped against a crate, sharpening a combat blade with slow, deliberate strokes. The sound of stone against steel was soft but unpleasantly clear in the quiet room.
His presence carried that familiar wrongness most people struggled to endure, a hollow pressure in the nerves that made ordinary men want to step away without knowing why. Qin Mo ignored it. Grey had learned to ignore it. Yoan seemed to enjoy the rare company of men who could look at him directly without flinching.
Grey cleared his throat.
"Uh…" He looked between them, then asked the worst possible opening question. "Have you two eaten yet?"
Yoan stopped sharpening. He gave Grey a flat, unblinking stare.
Qin Mo set his tools down. The small clink of metal against metal sounded louder than it should have.
"Grey," Qin Mo said, voice calm, "we are not only commander and subordinate. We are brothers-in-arms. Speak plainly."
Grey's shoulders sank by a fraction. The armor compensated for the motion with a faint servo-whine.
"Did I just…" He swallowed. "Did I just kill Grot's brother?"
Qin Mo did not answer at once.
He simply looked at Grey.
That was answer enough.
The silence settled over the chamber, heavy and airless. Grey felt it inside his armor, pressing against his ribs harder than any enemy blow. His stomach twisted. For a moment, the fortress seemed too clean, too quiet, too far removed from the slaughterhouse he had just left behind.
Heavy Hammer had looked like every other monster the Underhive had thrown at them. A pit-born butcher. A cybernetic fanatic. A madman drenched in blood, screaming praise to a false god while civilians died beneath his weapons. Grey had seen men like that before. He had killed men like that before. There had been no room for hesitation.
But now he knew.
The man he had killed, no, the man he had crushed into a smear of bone, blood, and scrapmetal, had been Antara.
Grot's brother.
And before Grey struck the killing blow, he had mocked him.
You are a disgrace to your brother.
At the time, it had felt right. A necessary condemnation. A last judgment given to a butcher who had abandoned humanity for blood and madness.
Now the words sat in Grey's memory like shrapnel.
"He was killing civilians in the slums," Grey said. His voice came out lower than he intended. "He was armed. Augmented. Corrupted. There were people behind me who would have died if I hesitated."
He stopped. None of that was false. None of it helped.
"I didn't have a choice."
Yoan watched him without comment. Qin Mo said nothing.
Grey's fingers curled around the edge of his helmet. "But Grot…"
The name carried everything else.
Qin Mo raised one hand.
Grey fell silent.
Qin Mo understood the shape of the wound. Grey was not questioning the action itself. He knew the kill had been necessary. He had seen enough of war to understand that mercy given to the wrong enemy was cruelty to the innocent.
The guilt was not for killing Heavy Hammer.
The guilt was for what the truth would do to Grot.
Grot was loud, brutal, stubborn, and often infuriating, but loyalty ran through him like a structural beam. He could curse a man for an hour and still carry him out of fire. He could laugh over battlefield gore, then become dangerously quiet at the mention of family. He had found his brother once and lost him again in a way no man should have to understand.
Sooner or later, Grot would ask what had happened. Sooner or later, someone would have to answer.
"This stays between us," Qin Mo said. His voice was quiet, but it left no space for argument. "Only we know what happened in that final moment."
Grey looked up. Yoan's sharpening stone went still.
Qin Mo leaned forward, elbows resting on the workbench. His eyes fixed on Grey, sharp and unblinking.
"Here is what we will do."
Grey and Yoan both listened. Even the servo-arms overhead seemed to pause in their tracks.
"We will tell Grot that his brother died in battle during the purge of District One," Qin Mo said. "Not as a cultist executed after judgment. Not as a butcher cut down while screaming for blood. He died fighting the gang lords and heretics tearing the district apart. He died violently, publicly, and in a way that saved civilians who would otherwise be dead."
Grey's face tightened.
Qin Mo continued. "A warrior's death. A useful death. A death Grot can carry without having to tear apart every memory he still has of his brother."
For a moment, Grey felt relief so sharp it almost hurt. This was what he had come to ask for, though he had not known how to put the request into words. He had wanted permission to spare Grot the truth. He had wanted Qin Mo to say the lie out loud first, so the burden would not belong to him alone.
Then Yoan frowned.
"Lying to him," Yoan said slowly, "is that not wrong?"
Grey hesitated. The relief curdled. "It feels dishonorable," he admitted. "He trusts us."
Qin Mo's gaze hardened.
"Then tell him the truth."
Neither man spoke.
Qin Mo's voice remained even. That made it worse. "Tell him Antara was corrupted. Tell him his brother abandoned the Emperor and bowed to something heretic. Tell him he did not die defending the helpless, but slaughtering them. Tell him he butchered unarmed civilians in the streets and laughed while doing it. Tell him he was beyond saving, and that Grey killed him before he could kill more."
The chamber became very still.
Qin Mo looked from Grey to Yoan. "Say that to Grot's face."
Yoan's eyes dropped first. Grey's fists clenched inside his gauntlets.
Qin Mo let the silence do its work before he continued.
"And after that, answer his questions. Why did his brother go mad? Why did he suddenly worship blood and slaughter? Why did a pit fighter become a servant of something he had never seen? Why did the galaxy take the last piece of his family and turn it into a weapon aimed at civilians?"
His mouth tightened.
"Can either of you give him an answer he will believe? An answer that will not make things worse?"
Grey had no reply.
Yoan looked toward the wall-mounted holo-comm, where idle tactical runes flickered in cold blue light. He knew what Chaos was. He had felt its pressure break against his blankness. He had watched men become puppets to forces they could neither name nor resist.
But Grot did not know enough to be safe.
Grot loved battle. He loved impact, challenge, strength, and the clean certainty of smashing an enemy who deserved it. What would happen if he learned of Khorne not as a distant theological category, but as the thing that had taken his brother? Would he recoil? Would he rage against it?
Or would some part of him understand it too easily?
Qin Mo saw the thought pass through Yoan's face.
"Exactly," he said. "The truth is not automatically mercy. Sometimes the truth is a blade handed to a wounded man in a locked room."
Grey closed his eyes briefly. When he opened them, the decision had settled into place. It did not feel clean. It felt necessary.
"Then we lie," he said.
Qin Mo nodded once. "We give him something he can survive."
Yoan resumed sharpening his blade, but more slowly than before. "A merciful lie."
"A controlled one," Qin Mo corrected. "Mercy without control becomes sentiment. Sentiment gets people killed."
That ended the matter.
Not because Grey felt absolved. He did not. Not because Yoan was convinced. He was not. But Qin Mo had made the command decision, and both men understood the reason behind it. The truth would be contained. The wound would be managed. Grot would grieve a brother, not a corruption.
Qin Mo turned back to his work.
On the bench before him lay the components of a delicate gene-scanning device: microfluidic channels, sample reservoirs, spiral sensor vanes, a compact auspex core, and a drone-interface transmitter designed to coordinate search patterns across the entire Lower Hive.
The device was ugly in its unfinished state, all exposed circuitry and temporary clamps, but its purpose was precise.
Maya.
Grot's last surviving family member.
Qin Mo picked up a strand of preserved genetic material, sealed within a transparent capsule taken from Grot's records and battlefield samples.
Using DNA matching, the scanner would feed a profile into search drones. Those drones would sweep the Lower Hive in expanding concentric rings, testing census fragments, medicae archives, sewage traces, hab-block samples, blood residues, ration-distribution records, and any biological data the system could lawfully or unlawfully steal.
The Imperium had lost people by the billion through neglect. Qin Mo intended to find one woman by force of engineering.
Only then could some part of Grot's family be restored.
Grey and Yoan did not leave.
Grey seated himself opposite Qin Mo, helmet resting between his hands. His fingers tapped a restless rhythm against the table. Once. Twice. Then again, faster.
Qin Mo did not look up. "Ask."
Grey stopped tapping. "We are going to war with the Hive, aren't we?"
This time Qin Mo answered without hesitation.
"Yes."
The word landed with the weight of a sealed execution order.
Grey had expected it. Hearing it still changed the air in the room. Yoan's blade paused again, the sharpened edge catching the light.
Qin Mo set another component into place. "Everything points in that direction."
The assault on the Underhive had never been designed to succeed. The regiments sent below had been misinformed, misdirected, isolated, and abandoned. The ascent routes had been rigged for destruction. The official intelligence estimates had been wrong by an order of magnitude. Command structures had collapsed too neatly. Supplies had vanished too efficiently.
That was not incompetence alone.
Imperial incompetence was broad, wasteful, and usually stupid in recognizable ways. This had been precise. Someone had wanted loyal forces trapped below. Someone had wanted the Underhive written off as lost. Someone had wanted the survivors dead before they could bring back what they had seen.
And now there was David.
An Ecclesiarchy-linked authority figure. A man with influence. A man who had carried himself like a loyal servant of the Imperium while speaking with the caution of someone hiding allegiance beneath ritual language.
Qin Mo's expression did not change, but his voice cooled.
"If even one senior religious figure was compromised, we must assume the corruption reaches higher until proven otherwise. The campaign may have been shaped by a Heretic plot from the start."
Grey's eyes narrowed. "And David's final moments prove it."
At that moment, a crimson notification blinked across the internal display of Grey's helmet. He glanced down. The sender code belonged to Yoan. Classified report. Restricted access. Direct transfer.
Grey looked at him.
Yoan shrugged. "You were going to ask eventually."
Grey resealed his helmet just long enough to decrypt the file. The report unfolded across his visor: assassination log, environmental scan, proximity data, audio capture, Yoan's own post-action notes.
Then the recording played through the chamber vox.
["Talon I is not yet ours. Choose your words carefully."]
David's voice emerged from the speakers calm, controlled, and damning. Not panicked. Not confused. The words had been spoken by a man who believed himself among co-conspirators.
Grey stood motionless as the rest of the log followed.
He saw the timing. The approach. Yoan's route. The angles of entry and exit. The brief window in which David had been isolated. The method of execution. The erasure of evidence. The cold precision of a blank used as a knife against a hidden witch-network.
For the first time, Grey understood the full scope of what Yoan had done.
It had not been murder committed in the dark because Qin Mo disliked a political obstacle. It had been removal of an infiltrator before that infiltrator could speak, flee, signal, or trigger whatever deeper network waited above them.
Grey removed the helmet again. His expression was grim.
"So there is no doubt left."
"No," Qin Mo said. "There is not."
Grey looked toward the tactical map glowing on the far wall. Tyrone Hive Primus filled most of the projection, a layered mountain of industry, poverty, authority, and rot. Above it, markers indicated orbital paths, defense stations, and the other worlds of the Talon system.
"Then we are not just fighting Hive Lords," Grey said. "We are fighting David's faction. Their power base. Their system."
Yoan slid the combat blade back into its sheath. "And perhaps whatever answers when they pray."
Qin Mo's mouth twitched faintly. "That too."
Grey turned back. "Where is their stronghold?"
"There are three planets in the Talon system," Qin Mo said. "If their center of power is not Tyrone Hive on Talon I, then it is one of the others."
He paused.
"Possibly both."
Grey absorbed that without surprise. His mind was already moving from guilt to war. That was one of his strengths. He could carry pain without letting it paralyze his hands.
After a moment, he gave a short, humorless laugh. "If a heretic fleet comes for us, you can invent something to deal with it, right?"
Qin Mo bumped Grey's armored shoulder with the back of one hand. "What do you think I am, a wishing machine?"
Grey's grin returned, thin but real. "No. A very angry engineer with terrible sleep habits."
Yoan added, "And a worrying tolerance for impossible deadlines."
Qin Mo ignored them both with dignity.
Grey leaned back. "Then we teleport onto their ships and fight to the death."
"No need to be dramatic." Qin Mo picked up a micro-welder. "We are building a shipyard."
Grey blinked.
Yoan stared at him.
The silence lasted several seconds.
Grey finally asked, "A shipyard?"
"Yes."
"In the Underhive?"
"For now." Qin Mo fitted another sensor vane into the gene-scanner casing. "Once we secure orbital control, we teleport the structure into low orbit. Then we mass-produce warships."
Grey stared at him as if trying to decide whether the answer was insane, brilliant, or simply Qin Mo.
"A shipyard that large can be teleported?"
Qin Mo looked up at last. There was a faint smile in his eyes.
"You thought teleportation was only for infantry?"
Grey opened his mouth. Closed it. Then gave a low whistle. "Fair enough."
Yoan rubbed the bridge of his nose. "Every time I think I have adjusted to your scale of thinking, you move the scale."
"Adapt faster," Qin Mo said.
Despite himself, Grey laughed. The sound eased some of the weight in the room. Not all of it. Heavy Hammer still lay dead. Grot still waited somewhere in the fortress, unaware that the men closest to him were preparing to lie for his sake. David's words still echoed in the air. A war with the Hive still loomed over them like a loaded gun.
But laughter had its uses. It proved they were still human enough to feel absurdity, even at the edge of disaster.
Qin Mo sealed the gene-scanner's casing and set it aside for drone integration. Then his expression shifted from private grief and engineering focus to command calculation.
"We need to expand our forces."
Grey straightened. Yoan's posture changed as well, subtle but immediate. The conversation had moved from confession to planning.
Qin Mo activated the hololithic map. Tyrone Hive Primus expanded in layered sections, upper spires reduced to distant outlines, lower districts marked in sharper detail, Underhive zones mapped with far more precision than any official authority had likely possessed in centuries. Water networks appeared next: broken mains, sump-fed reservoirs, purification nodes, contaminated distribution lines, and the systems Qin Mo's drones had already repaired or replaced.
"Deploy water purification systems across the Hive," Qin Mo said. "Not just in zones firmly under our control. Push them into contested districts where we can defend the machinery long enough for civilians to use it."
Grey frowned. "That will spread our assets thin."
"Yes."
"It will also make the civilians dependent on us."
"That is the point."
Yoan tilted his head. "You intend to recruit from the water zones."
"Correct." Qin Mo marked several sectors in green. "Clean water changes loyalties faster than speeches. A man who has watched his children drink poison from a rusted pipe will remember who gave him a filter more clearly than who claimed divine right from a pulpit."
Grey studied the map. "And anyone who comes to the distribution points can be screened."
"For disease, mutation, useful skills, and strange beliefs," Qin Mo said. "Once the first systems are stable, begin recruitment. All new recruits are to be sent to the Underhive for training."
Yoan's expression sharpened. "Underhive training will break some of them."
"Better there than on the front line."
Grey nodded slowly. "And those who display strange beliefs?"
Qin Mo's eyes lingered on the sectors where David's network might have roots.
"They will be screened thoroughly."
Yoan gave a dry smile. "By thoroughly, you mean me."
"Among other measures."
Grey's concern did not fade. "What if we lose control of the water zones? If the enemy retakes them, they gain clean water, civilian goodwill, and functioning infrastructure."
Qin Mo leaned back in his chair. The workbench lights reflected faintly across his face.
"Let them drink."
Grey stared at him.
Qin Mo continued, voice calm and merciless. "Clean water will not let them break our gravitic shields. It will not let them destroy our tanks. It will not give them answers to our drones, our teleportation systems, or our production capacity. Even with our current forces, we can conquer the Hive if they outnumber us ten to one."
Grey crossed his arms. "That sounds like arrogance."
"It is arithmetic." Qin Mo tapped the map. "Their numbers matter only if they can move, coordinate, supply, and survive contact. We attack their command structure, their logistics, their legitimacy, and their ability to concentrate force. Water is bait, leverage, and mercy all at once."
Yoan studied him for a moment. "You make mercy sound like a weapon."
"In war, everything useful becomes a weapon."
Grey looked back to the map. The plan was ruthless, but not careless. Purified water would save civilians. It would also draw them into Qin Mo's administrative reach. Recruitment would increase manpower. Screening would identify cult infiltration. Training in the Underhive would harden recruits away from the Hive Lords' immediate influence. If the enemy seized some systems, they would inherit civilians who now knew exactly what Qin Mo had provided and what their old rulers had not.
Cause and effect. Resource and loyalty. Mercy and control.
It was not the way Imperial commanders usually thought.
That was probably why it might work.
Grey and Yoan exchanged a glance. Then, almost as one, they stood and saluted.
"Understood," Grey said.
Yoan's salute was less polished, but no less sincere. "Understood."
Qin Mo returned the gesture with a brief nod.
Grey picked up his helmet. For a moment, his fingers rested against the scorched surface. The guilt had not vanished. It had merely been placed where a soldier could carry it: beneath duty, beside loyalty, behind the next order.
At the door, he paused.
"Qin Mo."
Qin Mo looked up.
Grey's voice was quiet. "When Grot asks… I will be the one to tell him."
Qin Mo studied him for a moment, then nodded. "Use the truth carefully."
Grey gave a bitter half-smile. "The useful parts of it."
"The survivable parts," Qin Mo corrected.
Grey accepted that and left. Yoan followed a step behind, his presence swallowing the room's warmth for a moment before the door sealed shut.
Qin Mo remained alone with the map, the half-finished war, and the small gene-scanner that might yet return one member of Grot's family to him. Above the fortress, Tyrone Hive Primus waited: vast, diseased, proud, and unaware that the forces beneath it were no longer merely surviving.
They were preparing to rise.
And with that, the war preparations began.