Guren stood where he was because his legs refused to listen to reason.

  Blood ran down his right side, dark and sticky beneath the torn fabric of his uniform. A shallow gash cut across his ribs where Sera’s blade had slipped past his guard earlier; every breath sent needles through his chest. His thigh burned where shrapnel had torn muscle, the leg trembling each time he shifted his weight. Sweat soaked his collar, dripped down his jaw, stung his eyes.

  And then there was his left arm.

  Black veins had crawled past his wrist now, branching like living fractures beneath his skin, pulsing faintly with a sick, oily sheen. The sleeve around it had split from the heat. It burned—not like fire, not like pain—but like something was boiling inside his bones, trying to claw its way out.

  It’s eating me, his mind whispered.

  No. It’s claiming me.

  He forced his stance anyway. Feet planted. Shoulders squared. His right arm hung low, sword angled toward the floor, the blade nicked and dulled from the fight. Each breath came heavy, loud in his ears.

  Across from him, Sera straightened slowly.

  He had hurt her. He knew that much. Dark fluid seeped from several cuts along her torso and shoulder, dripping onto the metal floor in thick, tar-like drops. But even as he watched, the black liquid crawled, knitting her wounds together, smoothing her skin as if his strikes had never mattered.

  That was what terrified him most.

  Guren lifted his head, teeth clenched.

  “…Sera,” he said hoarsely. “Enough games.”

  She tilted her head, smiling softly, almost fondly. The red glow at the center of her pupils throbbed.

  “Say it,” Guren demanded. “Say what you are. Say what they did to you.”

  For a moment, she only looked at him. Then she laughed.

  It wasn’t the distorted laugh this time. It sounded almost… relieved.

  “I was saved,” she said lightly. “By God.”

  Guren’s grip tightened on his sword. “God doesn’t wear black veins.”

  Her smile widened. “You’re wrong. God wears purpose.”

  She stepped closer, boots clicking against the blood-slick floor. The micromachines rippled beneath her skin, flowing like ink under glass.

  “Humanity was dying,” Sera continued. “Trapped in war, in fear, in your precious duty. So God gave me a second chance. And I’ll give one to them too.”

  Guren swayed. His vision blurred at the edges. His arm throbbed harder, heat surging up to his shoulder.

  “You’re not saving anyone,” he rasped. “You’re killing them.”

  Sera’s eyes softened—just for a heartbeat.

  “Death is only frightening when you don’t know what comes after.”

  Her arm melted, reshaping into a long, glistening blade of black micromachines. It hummed faintly, alive.

  Guren tried to lift his sword.

  His arm shook. His legs screamed. He was too slow.

  Sera lunged.

  The world cracked with a sharp bang.

  Her body jerked sideways as a bullet slammed into her shoulder, tearing through flesh and fluid alike. The micromachines dispersed in a violent splash, and Sera stumbled, crashing onto the metal floor with a screech of steel and bone.

  For a second, everything froze.

  Smoke drifted.

  Footsteps thundered.

  “CAPTAIN!”

  The shout tore through the chamber like a lifeline.

  Guren’s vision snapped forward as figures burst into the room—UF soldiers flooding in through the shattered entrance, weapons raised. At their head was a short girl with dark green hair, her rifle still smoking.

  Nyra.

  Behind her came Vera, Loran, Irik, and half his platoon.

  Nyra’s eyes locked onto Guren instantly. “Captain—!”

  Sera twitched on the ground, already beginning to push herself up.

  Nyra reacted without hesitation. She pivoted, rifle snapping up, sights trained squarely on Sera’s head.

  “DON’T MOVE!” she screamed. “Hands where I can see them!”

  Vera skidded to Guren’s side, eyes wide with horror. “Sir—your arm—”

  Loran stopped dead a few steps behind her.

  Irik swallowed hard.

  They all saw it.

  The black veins. The arm no longer entirely human. The way the metal light reflected unnaturally off his skin.

  “Captain…” Vera whispered. “…you’re infected.”

  The word hit harder than any blade.

  Nyra shook her head violently, still aiming at Sera. “No. No—he’s still standing. He’s still— Captain, say something!”

  Guren raised his head slowly. His face was pale, slick with sweat and blood, but his eyes were still sharp.

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  “Stay back,” he growled. “All of you.”

  Sera laughed from the floor, pushing herself upright, her shoulder already reforming.

  “Oh,” she said pleasantly. “You brought friends.”

  Nyra tightened her grip on the trigger. “Shut up.”

  Sera’s gaze slid back to Guren, amused, almost tender.

  “They’re scared of you now,” she whispered. “Doesn’t that hurt more than any blade?”

  Guren didn’t answer. He straightened despite the pain, the burning in his arm roaring like a furnace.

  “Nyra,” he said firmly. “If she moves—shoot.”

  Nyra nodded, jaw clenched, eyes shining. “Yes, sir.”

  Around them, the soldiers formed a loose perimeter, weapons shaking in hands that didn’t want to point at their captain—but couldn’t look away from what he was becoming.

  Black fluid pooled between them.

  Blood soaked the floor.

  And in the space between Guren and his sister, something ancient and merciless watched… waiting to see which of them would fall first.

  Sera lifted her head.

  For a single, frozen heartbeat, everything went quiet.

  Her left eye flared.

  Not red this time—white-hot, luminous—and within it, etched as if burned into glass, a symbol turned slowly. Geometric. Precise. Inhuman. Nyra felt her stomach drop the instant she saw it.

  “What… is that—” Vera breathed.

  Black veins burst outward from Sera’s eye socket like cracks in porcelain, racing across her face, crawling over her skull. Her skin split and sealed at the same time, flesh surrendering to something far older and far more deliberate.

  Sera laughed.

  It echoed wrong—layered, overlapping, as if several voices were speaking through her throat at once.

  “The United Front,” she said, her tone twisting between mockery and venom, “will pay for the atrocities it committed.”

  Guren stared, his breath catching. “What atrocities…?”

  He didn’t get an answer.

  The black micromachines erupted.

  They poured off her like a flood, swallowing her body in an instant. The mass expanded violently, slamming into the walls, the ceiling, the floor—liquid metal screaming as it multiplied and reshaped.

  Nyra reacted on instinct.

  “OPEN FIRE!”

  Her rifle barked. Bullets slammed into the black surface—

  —and ricocheted.

  Sparks exploded everywhere as the rounds deflected at impossible angles. Irik and Loran joined in, rifles hammering, Vera firing short, controlled bursts. The chamber filled with thunder and flying brass.

  None of it mattered.

  The black mass grew taller. Wider. Limbs formed—not human, not quite mechanical. Three legs slammed into the floor with bone-rattling force, each one jointed wrong, reinforced with layered armor plating that crawled into place like growing bone.

  A torso followed. A head—angular, featureless, crowned with sensor arrays that glowed faintly beneath the black shell.

  A Nullwalker.

  No—worse.

  The micromachines peeled back just enough to reveal a fully realized mech beneath them. Three-legged. Compact. Brutal. Its armor was matte black, absorbing light instead of reflecting it, veins of liquid metal still flowing across its surface like living scars.

  Sera’s voice boomed from within it, distorted, resonant, everywhere.

  “Everything ends now.”

  Panic tore through the room.

  “WHAT THE HELL IS THAT?!” Irik shouted.

  “KEEP FIRING!” someone screamed.

  They did.

  And the bullets still bounced away.

  The mech moved.

  It didn’t walk—it launched.

  The floor cratered as it propelled itself forward, a black blur tearing through the UF line. One soldier didn’t even have time to scream before a bladed limb cut clean through his chest. Another was smashed into the wall with a sound like breaking timber.

  Blood sprayed. Armor crumpled.

  Nyra threw herself behind a fallen console, dragging Vera with her as the mech’s shadow passed overhead. Irik stumbled back, barely rolling aside as a claw slammed down where his head had been a moment earlier.

  “TAKE COVER!” Loran roared.

  He grabbed Guren by the collar and hauled him backward, careful—so careful—not to touch the blackened arm. Guren hissed in pain but didn’t resist.

  The mech tore through the chamber, carving UF soldiers apart like obstacles rather than enemies. The sound of metal slicing metal mixed with screams and alarms.

  They were being slaughtered.

  Loran slammed Guren behind a reinforced pillar, breathing hard. “Captain—what the hell is going on?! What is that thing?!”

  Guren stared at the chaos, his mind racing, his arm burning like it wanted to answer the question for him.

  “I don’t know,” he said honestly. His voice shook—but only for a second. “I swear to you, I don’t.”

  The mech skidded across the floor, pivoting unnaturally fast on its three legs, Sera’s laughter echoing through its frame as it cut down another soldier.

  “But I do know one thing,” Guren continued, jaw tightening as he forced himself upright.

  Loran followed his gaze.

  “That girl has to be stopped.”

  Behind them, the black mech turned its head.

  And locked onto them.

  The black mech charged.

  Its three legs folded and launched it forward in a blur of liquid-metal violence, hidden blades snapping out from beneath its armor with a shriek that cut through the alarms. It was aimed straight at them—at Guren.

  Loran felt it before he saw it. Instinct screamed.

  “CAP—!”

  Guren moved first.

  He gritted his teeth, grabbed Loran by the chest plate, and shoved him with everything he had.

  “GO!”

  Loran was thrown backward, skidding hard across the metal floor. The world spun. His helmet slammed against a pillar, sparks exploding in his vision.

  And then—

  He saw it.

  Guren, midair.

  The black mech’s blade punched through him.

  A wet, horrible sound echoed through the chamber as the hidden blade impaled Guren straight through the torso, lifting him off the ground like a broken doll. Blood sprayed across the mech’s armor, steaming as it hit the writhing micromachines.

  “CAPTAIN!” Loran screamed.

  Guren coughed.

  Blood spilled from his mouth, dribbling down his chin. His eyes fluttered, unfocused, and for a second—just a second—there was confusion there. Then his body went limp.

  Sera’s voice rolled out of the mech, calm. Almost tender.

  “He will be free,” she said.

  “The micromachines will guide him to a better life.”

  The blade withdrew.

  Guren’s body fell—no, was thrown—slammed aside like discarded scrap, skidding across the floor and coming to rest in a spreading pool of red.

  Loran’s scream died in his throat.

  The mech turned.

  It surged toward him.

  Loran forced himself to move, adrenaline tearing him out of shock just in time. He rolled, the blade slicing through the air where his neck had been a heartbeat earlier. Heat and pressure passed so close he felt the wind of death brush his skin.

  He scrambled to his feet and ran.

  “MOVE!” Loran shouted into the chaos. “LEAD IT OUTSIDE! DON’T LET IT TOUCH THE COIL!”

  Nyra, Vera, Irik—everyone was frozen. Horror had rooted them in place. They stared between Guren’s broken body and the towering black mech, unable to process either.

  Loran looked back.

  And his blood ran cold.

  The mech had stopped.

  It stood directly before the Shield Coil.

  The massive vertical structure glowed red, Magitium energy pulsing through it like a living heart, cables and conduits feeding upward into the city’s lifeline. The hum it gave off was constant—reassuring.

  Protective.

  The black mech raised its blade.

  “No…” Loran whispered.

  The blade came down.

  It pierced the coil.

  The sound was not an explosion—it was a scream.

  Red liquid Magitium burst outward under pressure, spraying across the floor like molten blood. The glow destabilized, flickering wildly as arcs of crimson electricity lashed out in every direction, frying consoles, shattering glass, throwing soldiers off their feet.

  Alarms wailed—then died.

  The hum vanished.

  The light collapsed.

  The coil went dark.

  For one impossible second, there was silence.

  Then the shield died.

  Above Ironford, the electromagnetic barrier flickered—once—twice—

  —and vanished.

  The first artillery shell hit seconds later.

  The entire facility shuddered as the impact rolled through the earth. Dust rained from the ceiling. Another shell followed. Then another. The sound became constant—thunder layered over thunder, the city screaming as it was torn apart.

  Inside the Shield Coil chamber, UF soldiers were thrown to the ground as shockwaves rippled through the structure. Some cried out. Others prayed. Someone screamed Guren’s name.

  Loran dropped to his knees.

  Ironford was burning.

  And Guren Veyr lay motionless on the floor, blood pooling beneath him, as the world he had sworn to protect began to fall apart.