Year: 2037. Several years have passed since the battle that shattered the sky and scorched the earth—the battle against the Rhupenshron Mother. The world is healing, rebuilding in silence, but peace has only softened the surface. Beneath it, new tech stirs… and not all of it was made by human hands.

  Squad X's hangar wasn’t like the others.

  While standard military mechs stood upright in rows like obedient soldiers, Squad X’s bay resembled a biomechanical zoo. Claws, wings, coils, and mandibles gleamed under white lights, each chassis alive with personality, each one forged not just for combat—but for purpose.

  Mech 1: “Iron Scarab” — A towering beetle-shaped mech with armor so dense it could shoulder a collapsing skyscraper. Piloted by Jessica Inbolkis and Mark Stroble, it served as the team’s shield, designed for siege warfare and defense.

  Mech 2: “Abyss Ripper” — A shark-inspired bipedal mech, agile in aquatic and urban environments alike. Josh Volton and Emily Kurve drove it with synchronized ferocity, tearing through enemy lines with hydraulic snap-jaws and fluid thruster bursts.

  Mech 3: “Gravemaw” — Less walked, more slithered. A colossal worm-like mech tunneled under battlefields, bursting upward in ambush. Piloted by Chika Itakoru and Lucas Timothy, it disrupted terrain and scattered formations.

  Mech 4: “Serpent’s Coil” — The cobra mech, lethal and hypnotic. Sofia Ramirez and Marcus Nguyen manipulated its flexibility and venom-launching hood like artists, striking from impossible angles.

  Mech 5: “Skybrand” — A falcon-shaped aerial mech. Alex Anderson and Riley Mitchell soared over operations, the team’s eyes in the sky and precision-strike specialists.

  Together, they were the outliers—experimental, unpredictable, and the reason why enemy AI command networks had nightmares.

  But the game changed on a fog-swept ridge in the West Dune Reclamation Zone.

  They’d been chasing a ghost.

  A blur. A figure too fast for radar. Motion sensors caught only dust. Every mech pilot across the armed divisions had failed to track it—until now.

  From a cliffside, Skybrand spotted it.

  Its armor glinted like polished obsidian under the twilight sun. Feline-shaped, lean and angular. It moved like liquid lightning: four-legged, sleek, and deadly. The mech… was shaped like a cheetah.

  “A cheetah?” Riley had asked, voice low. “You sure it wasn’t a glitch?”

  Alex triple-checked. “No glitch moves like that. It outpaced a Mach-1 drone without breaking stride.”

  Command gave the order: identify and contain.

  But that was easier said than done.

  The thing—whatever it was—seemed to be testing them. Showing itself. Disappearing. Always just beyond reach. Every time they moved to intercept, it vanished over ridgelines or slipped into ravines.

  Then it started leading them deeper into reclaimed territory.

  What was left of the Rhupenshron wastelands still pulsed with strange radiation. Nothing should have been able to function out here without shielding—but the cheetah mech didn’t seem to care.

  After three days of pursuit, Squad X had enough.

  Lucas proposed a trap. “Gravemaw can tunnel a U-pattern. Box it in when it runs past.”

  Jessica nodded. “We time it with Skybrand’s sweep. Flush it toward us.”

  It took all five mechs working in tandem—five different beast forms tracking, baiting, and closing in—to finally pin the thing.

  It fought like it didn’t want to kill—only escape. Fast, reactive, but controlled. But even the fastest predator has limits.

  Eventually, Gravemaw erupted from the ground beneath its path and coiled its drilling segments around the creature’s legs. Skybrand dove, disabling one of its rear propulsion ports. Serpent’s Coil struck with a paralyzing nerve burst—experimental tech—and Iron Scarab anchored its legs around the fleeing form, slamming it into the ground.

  And then it stopped. Not struggling. Not resisting. Just... watching.

  Up close, it was beautiful. Streamlined armor with minimal plating. No visible cockpit. Its eyes glowed a low amber.

  Skybrand’s scanners swept for life signs inside the chassis. Nothing.

  “Thermal readout’s empty,” Riley said, brow furrowed. “No pulse, no respiration. No body heat.”

  Alex descended for visual confirmation. “There’s a seat,” he muttered. “But no one’s in it.”

  The others converged slowly, cautious. Gravemaw’s drill limbs unwound, and Serpent’s Coil hovered like a sentinel behind the others, ready in case it sprang back to life.

  Mark peered through the now-open dorsal hatch. “That’s a standard neural cradle. Designed for human interface.”

  Jessica’s voice was sharp. “But no pilot. So either someone bailed at supersonic speed…”

  “…or this thing never needed one,” Lucas finished.

  They ran every scan they had on site. Still nothing. The squad called in a heavy lifter drone and prepped for transport.

  “Whatever this is,” Sofia murmured, watching the sleek armor glint under the stars, “it just let us catch it. And it wanted us to bring it back.”

  The cheetah mech was sealed in Hangar B-12—an isolated chamber typically used for volatile prototypes.

  It didn’t resist containment.

  But it didn’t stay idle, either.

  Tech crews watched as its core, nestled beneath the cockpit, pulsed with a rhythmic thrum—not electrical, not mechanical. Biotic. Like a heartbeat made of radiation.

  Lead engineer Dr. Mina Haldros leaned over the scans, eyes narrowed behind polarized lenses.

  “This is beyond hybrid tech,” she said to the squad, standing in a debrief room overhead. “The neural system is partially synthetic, but the substrate—this is Rhupenshron-adjacent. Not from the Mother, but… derived. Controlled.”

  “Wait,” Josh said. “You’re saying this thing was grown? Like their bioforms?”

  “More like it was grown, then engineered. But not by us. This is decades ahead of what we’ve got.”

  Lucas looked through the glass, toward the mech. “Then who made it?”

  Mina didn’t answer immediately. She clicked through scans—muscle-thread analogs running along frame joints, an energy core with signatures similar to dormant Rhupenshron matter, and a cockpit whose controls still glowed faintly, waiting.

  “No pilot. No identity imprint. But it was linked, once. Recently.”

  She turned back to them. “This mech had a pilot. And I think it still remembers them.”

  Jessica stepped forward. “So where are they now?”

  Mina hesitated. “That’s what worries me.”

  On cue, alarms flared softly across the hangar.

  The cheetah mech had lifted its head.

  No power surge. No movement. Just… awareness.

  It was awake again.

  Three days into diagnostics, the Fortress’s engineering division made a breakthrough. Beneath the cockpit housing, shielded from standard scans, was a name carved into the alloy under the pilot interface.

  Kalrex.

  No surname. No ID tag. Nothing else.

  The tech lead, Dr. Mina Haldros, didn’t hesitate. She sent a sealed report straight to Commander Vel Orsin and Vice Commander Helena Rourke — the only ones authorized to receive anomalous mech data before High Command.

  Inside the Iron Fortress’s war room, Vel reviewed the projection with arms folded tight.

  “Just the one word?” he asked, his voice as steady as ever.

  “Yes, sir,” Mina replied. “Buried under multiple shielding layers. Deliberately hidden.”

  Helena leaned forward from her seat beside him, eyes locked on the glowing name. “Not a call sign?”

  “No ma’am,” Mina said. “It’s etched like a message. Like someone didn’t want it found... until we found it.”

  “Trace origin?” Vel asked.

  “We tried. Nothing in Allied or enemy registries. No biometric pairing. The mech was clearly linked at some point, but it’s since severed itself.”

  Helena raised a brow. “Severed?”

  “Like it chose to disconnect.”

  The room went quiet. Then Vel gestured toward the glass wall that looked down into the hangar, where the cheetah frame hung like a predator in hibernation.

  “And yet it’s here.”

  Mina tapped the final slide of her report. A recovered fragment of visual data from the mech’s core, processed with Fortress-level encryption and Rhupenshron-coded scanware.

  It projected into the air.

  A massive underground hangar. Dozens of animalistic mechs, dormant in stasis tanks. Liquid shimmered around them, and cables snaked from the walls like veins. Among them, the cheetah unit — newer-looking, more refined. And standing beside it…

  A figure.

  Obscured. Slender. Cloaked in what looked like hardened fiberweave. The face hidden. The hands gloved. But unmistakably human — or at least, it had been, once.

  “There,” Mina said. “That’s what the mech remembers.”

  The image flickered and then went dark.

  “Shadow distortion,” she continued. “This person doesn’t register light data like normal. Could be cloaking. Could be... something else.”

  Vel didn’t move. “You’re saying the mech has a memory of this person.”

  Mina nodded. “Not a recording. A memory. Burned into its neural architecture like a dream.”

  Helena stood, eyes sharp now. “And the location?”

  “We triangulated micrograv data from the environment. It’s somewhere under the Siberian dead zone. Specifically — coordinates buried in what used to be the Sayan mountain range.”

  Vel turned to her. “You thinking what I’m thinking?”

  Helena nodded. “That this mech wasn’t running from us.”

  “It was leading us to something.”

  Vel Orsin stepped toward the command deck window and looked down at the machine below, still unmoving. Still watching.

  “Prep Squad X,” he said.

  “Let’s find out who — or what — Kalrex really is.”

  Wind howled like a wild thing through the crags of the shattered Sayan range.

  Once jagged mountains — now collapsed ridges and scorched ravines.

  Squad X advanced in low-formation, each member in their distinct aniframe.

  Their comms were open. Mission protocol: quiet comms until contact — but Squad X was never great at rules.

  “So,” Riley's voice crackled through the ice-bound air, “we ever going to talk about the fact we’re chasing a mech that piloted itself across the Pacific like it had vacation plans?”

  Josh laughed. “Maybe it did. Maybe it’s got a reservation at the Siberian Mech Spa.”

  “You think they have saunas for metal freaks?” Mark added. “Like, little lava pits with essential oils?”

  “Bet the shark’s jealous,” Emily said. “You haven’t been in water for what, six hours now? You getting dry?”

  “You’re all very lucky I can’t bite you from here,” Josh growled.

  Down below, Chika’s worm-frame burst up through a frozen ridge and squirmed onto the surface, shaking frost from its armored plates. Lucas pinged the others.

  “Cavity ahead. Fifty meters down. Looks like a man-made entrance under the ice. Vents are still putting out heat.”

  Sofia's voice came through next, calm as always. “We’re seeing the same from cobra-sensors. EM residue is recent. Something powered up down there... less than three weeks ago.”

  That sobered them all for a second.

  Helena’s voice chimed in briefly over command-line.

  “Proceed to breach. Keep comms light and eyes sharper. No hero plays.”

  Stolen content warning: this content belongs on Royal Road. Report any occurrences.

  “Copy,” Vel added. “Report anything anomalous immediately. This is not a recovery op. It’s recon and trace.”

  The line clicked off again.

  Mark sighed. “He’s so serious these days.”

  Jessica muttered, “Well, we are investigating a ghost mech with memory problems and a mysterious ex-pilot.”

  “Yeah,” said Alex from above. “Pretty casual Tuesday.”

  They reached the cavity moments later — a jagged sinkhole half-covered in ice and bleached snow, like the ground had coughed up something and tried to bury it again.

  The beetle stomped forward first, then retracted its forelimbs into a battering position and smashed down through the remaining ice. The ground gave way, revealing a wide shaft lined in broken alloy plating — an old lift system. Ancient, pre-War. Possibly even pre-Rhupenshron.

  And there, carved along the inner wall, in deep-etched block letters:

  XENO-UNIT LABORATORY — SECTION KALR-X

  The name hit like a punch.

  “Kalrex,” Chika whispered. “It’s not just a person. It’s a program.”

  “Or a project,” Lucas added grimly. “Which means whatever we’re chasing... might’ve been one of many.”

  The hatch pressurized with a hiss.

  One by one, Squad X disembarked from their mechs. They moved through the icy shaft with practiced ease, boots gripping the frost-slick alloy beneath them. Helmets on, visors polarized against the underground glare, each of them wore the sleek, skin-tight pilot suits issued by the Iron Fortress: charcoal black with metallic accents and squad-colored trim — a second skin made of compression-woven polyester and spandex. Durable. Responsive. Efficient.

  “Damn it’s cold,” Mark muttered, flexing his gloved fingers. “Feels like this suit’s vacuuming heat from my bones.”

  “Better than wearing steel,” Riley replied. “You’d freeze solid in five minutes down here without the climate seals.”

  The inner shaft descended at a steep angle, reinforced by rusted struts and cracked lighting panels that flickered with occasional bursts of low voltage — someone had rerouted power, and recently.

  At thirty meters deep, the shaft opened into a chamber. Wide. Circular. Ringed with reinforced glass halls and command stations — most shattered from time or pressure. At the center stood a wide glass cylinder, shattered at the top. Cables spilled out of it like a metallic spider’s nest.

  “Bio-containment tube,” said Sofia, checking her wrist interface. “Judging by cable thickness... whatever was in there wasn’t human-sized.”

  Josh stepped cautiously forward. “We sure this wasn’t Rhupenshron-related?”

  “Too symmetrical,” Chika answered. “And no trace of organic infestation. This was made by us.”

  Lucas knelt near a console, brushing frost from a cracked control panel. “Hardline interface. No uplink ports. Manual data drives only.”

  “Pre-2030 tech,” Emily said. “Buried for a reason.”

  Alex pointed at the walls — lined with display cases, most empty. The ones that weren’t held sealed vials, each labeled in stenciled text:

  XN-G2 Synaptic Fluid

  KALR.NR-37 Alloy Blend

  KALR.PC-NEURAL MESH

  Jessica squinted. “Those look like bio-mech components.”

  “And that,” Marcus said, shining his light up toward the ceiling, “looks like a symbol.”

  They all followed his gaze.

  Above the broken containment cylinder, painted on the ceiling in a faded red:

  KALREX: ONE MIND, MANY FRAMES

  “That’s not a codename,” Riley muttered. “That’s a doctrine.”

  “Or a religion,” Emily said quietly.

  Vel’s voice cracked over comms. “Report.”

  Lucas tapped his mic. “We’re in the main chamber of the lab. Found evidence of Kalrex being a distributed mind or linked project — possibly piloting multiple frames.”

  “Meaning?” Helena asked.

  “Meaning the cheetah unit might not have lost its pilot,” Sofia answered. “It might be the pilot.”

  A silence followed.

  Then Vel said, “Keep moving. Find core access. We need more than philosophy.”

  They pushed deeper.

  Through a side passageway partially collapsed with ice and rubble, the team found a data archive room. Rows of magnetic tape reels, locked filing drawers, and a single powered terminal — humming faintly, as if waiting.

  Jessica stepped forward and placed her palm against the interface panel.

  A flicker. Then the screen came alive.

  PASSWORD REQUIRED.

  Then — without input — the screen changed.

  WELCOME BACK, KALREX UNIT 09.

  Everyone froze.

  “Did it just... recognize us?” Chika asked.

  “No,” Lucas said, checking the panel again. “It recognized the mech’s pilot signature...”

  He tapped into his handheld.

  “Which means something in this room just broadcast the cheetah’s neural pattern. This place thinks one of us is the pilot.”

  A low rumble echoed through the complex.

  Then lights powered on — one by one — revealing a second hallway branching downward into a vault labeled: KALREX CORE.

  The door unsealed itself.

  Sofia looked at it, then back at the group. “Guess it’s inviting us in.”

  Alex muttered, “Last time something invited us inside, we spent three weeks fighting underground insects with firebombs.”

  Emily cracked her knuckles. “This time, let’s knock back.”

  They stepped forward.

  :: LOG ENTRY KX-00-ALPHA

  :: DATE: APRIL 14, 2018

  :: ACCESS: LEVEL NULL — DEEPSTORE

  The footage that flickered into existence wasn’t dramatic. It was bureaucratic. Clinical.

  A plain white lab. Fluorescent-lit. Dozens of racks lined the background, each holding neatly stacked pilot suits — black polyfiber, seamless, labeled with alphanumeric tags.

  Ten figures stood in the center of the frame.

  Jessica, Mark, Josh, Emily, Chika, Lucas, Sofia, Marcus, Alex, and Riley.

  They hadn’t aged a day.

  The timestamp on the recording read: April 14, 2018.

  Sofia took a step back from the holo, whispering, “That’s— That’s twenty years ago.”

  A voice from the recording began to speak. Calm. Official. Almost bored.

  “This is standard deployment log for Kalrex-Integrated Combat Units. Batch A through Batch Z finalized. Units loaded with cognitive cores and fabricated memories. Emotive adaptation protocols activated. Reintegration sync: stable.”

  The camera panned. Behind the ten standing figures was a glass wall. Behind that — rows and rows of identical figures. Inactive. Slumbering. Hundreds of them. Clones. Variants.

  “Squads A through Z are active replicant lines. Fully operational. Each assigned a mech frame and operational sector under the Iron Legion Global Oversight Initiative. Squad designations are arbitrary and interchangeable. All units are considered expendable.”

  The voice didn’t stop. It continued, clinical.

  “When a replicant is lost in action, it is replaced. New identity. New face. Memory synthesis begins at baseline. Personality variance is permitted within tolerance thresholds. Previous replicants are stored.”

  The camera zoomed in on a stasis vault door in the back wall. Rows of pods. Each one labeled with a squad designation and a unit number. Faces inside — silent, serene, sleeping.

  “Stored,” the voice repeated. “For future harvesting. Memory analysis. Behavioral improvements. Next-gen optimization.”

  Josh stumbled back from the projection.

  Emily stared at her hands.

  Jessica whispered, “We’re not unique.”

  Mark exhaled slowly. “We’re not even us.”

  Lucas looked at the holo of himself, twenty years younger and unchanged. “We’re just next in line.”

  Chika looked toward the new corridor, where the cheetah mech’s steps still echoed.

  “All of this,” she said. “Everything we thought made us ‘X’... it was just our turn.”

  Marcus didn’t speak. He only stared at the frozen image of their original forms. Somewhere, in one of those pods, the previous ‘him’ was likely still sleeping.

  :: SYSTEM ANNOUNCEMENT

  :: ALL ACTIVE UNITS CONFIRMED AS BATCH-A THROUGH BATCH-Z

  :: KALREX INITIATIVE STATUS: ACTIVE

  :: REPLACEMENT QUEUE: STANDING BY

  The silence inside the chamber grew dense, like the air itself was rejecting them.

  Emily lowered her head. “We weren’t chosen... We were assigned.”

  Alex scoffed, but it was hollow. “Our whole lives—scripted. Stored. Recycled.”

  “No. Not lives,” Lucas said quietly. “Just service cycles.”

  Sofia clenched her jaw. “We’ve watched our squadmates die thinking they were human. That they were leaving something behind.”

  “They were,” said Chika, voice thin. “Just… a slot.”

  Jessica looked up at the frozen screen, at the image of the sleeping replicants in cold storage.

  “…We were never supposed to see this,” she said.

  That’s when the second video began.

  :: LOG ENTRY KX-07-OMEGA

  :: DATE: NOVEMBER 9, 2036

  :: STATUS: UNAUTHORIZED BROADCAST

  A lone corridor. Red emergency lights spiraled along the ceiling. The video was low-resolution, shaking slightly — a security camera feed. Down the corridor sprinted a pilot in a black synthsuit. The same design as Squad X. Face obscured by the helmet.

  But the way they moved — fast, calculated, feral — was unmistakable. The pilot turned a corner, hand pressed to their side, bleeding synthetic fluid that shimmered blue under the lights.

  :: SUBJECT: CX-01

  :: STATUS: DESIGNATED ROGUE

  :: CATEGORIZATION: EXPERIMENTAL COMBAT LINE — DISCONTINUED

  :: TERMINATION ORDER ISSUED

  The camera glitched, then died in static.

  The projector screen went black.

  A new prompt blinked into existence.

  :: UNIT CX-01 RECOGNIZED IN RECENT MECH SIGNATURE

  :: LOCATION: IRON FORTRESS — BAY 09

  :: WOULD YOU LIKE TO INITIATE RECOVERY PROTOCOL?

  They all stared.

  Josh broke the silence. “It’s there. At the fortress. That mech… that pilot… they survived.”

  Riley looked uncertain. “And now it’s back. But why?”

  Emily crossed her arms. “Maybe it’s a trap. Maybe it’s hunting the rest of us. Deleting whatever didn’t obey.”

  Jessica whispered, “Or maybe it remembers more than we do.”

  Mark stepped forward.

  Everyone turned as his boot echoed on the metal floor. He stared at the prompt. Eyes unreadable. Fingers twitching.

  Then — deliberate, calm — he reached out and pressed the holographic button.

  :: CONFIRMED

  :: RECOVERY PROTOCOL ENGAGED

  :: CROSS-UNIT COMM CHANNEL ESTABLISHED

  :: INITIATING REMOTE INTERFACE

  Mark looked over his shoulder at the others. “We’re not just going to pretend we didn’t see this. If there’s someone out there who broke free from the loop—” his voice hardened— “I want to know how.”

  A low pulse began to hum in the wall systems. Lines of old code scrolled across side terminals. Somewhere deep in the Kalrex Core, data links were realigning for the first time in decades.

  Emily exhaled. “Well... guess we’re not leaving quiet.”

  Marcus adjusted his visor. “Let’s just hope Fortress Command doesn’t notice we poked a ghost.”

  Chika watched the system go to work, eyes narrowed. “The cheetah pilot… CX-01… it didn’t come back to destroy anything.”

  Alex finished the thought for her. “It came back to wake us up.”

  In Bay 09,,the cheetah mech stood inert — a sleek quadrupedal frame of matte black polyalloy, curved plating gleaming faintly beneath the hangar lights.

  The eyes lit first — thin slits of amber that pulsed in rhythm with a low internal hum. Then came the twitch of the legs. One front foot scraped against the steel floor like a predator stretching after hibernation. The diagnostics table next to it sparked, overloaded, as the mech’s systems bypassed all the Fortress’s external command locks.

  In the central data tower, alarms erupted.

  :: ALERT — BAY 09 — UNAUTHORIZED STARTUP

  :: UNIT CX-01 REACTIVATED

  :: PILOT STATUS: NULL

  :: OBJECTIVE: UNKNOWN

  :: CONTAINMENT BREACH IMMINENT

  Down in Bay 09, the tech teams backed away in a panic as the hangar clamps holding the mech shuddered — then snapped off in bursts of smoke and sparks. The cheetah unit dropped to the floor, crouched low. For a split second, it was still.

  Then it bolted.

  A blur of motion — it crashed through the blast doors before they could even begin to seal. Sirens screamed across the facility. Watchtowers scrambled to track it as it darted up access ramps, twisting through industrial corridors, moving too fast for auto-turrets to lock on.

  It wasn’t attacking.

  It was escaping.

  The red lights strobed through the walls as the emergency klaxons hit full volume.

  Commander Haralds Heath was already pulling on his hardsuit. “Get your gear! We’re live!”

  Vice Commander Natsumi Kayode was on the comms, barking into her wrist unit. “Squad B to launch zone, now! It’s the rogue unit — the cheetah mech is active!”

  Across the barracks, pilots scrambled into motion.

  Bolvota — Kota Thacker shoved his helmet into place and exchanged a glance with Calvin Reyes. “Been waiting for something to punch. Didn’t think it’d be that thing.”

  Bayzato — Afzal Ito and Kayley Raine ran shoulder-to-shoulder, boots hammering the steel floor.

  “Fast mover,” Afzal muttered. “We’re gonna need tight turns.”

  Kayley replied, “Or a wall to crash it into.”

  Bevi — Evan Philon adjusted his gloves mid-run while Ida Sioma locked her eyes forward. “Hope command lets us fire.”

  “Hope we can catch it first,” Ida said.

  Bacravani — Dacre Tavares cracked his neck. “This is a mech chase,” he grinned. “Finally.”

  “Don’t get cocky,” Rani Fenn warned, already checking her HUD settings.

  Bestemyti — Remy Monk and Bahati Esteves entered the lift side by side.

  Bahati tapped his sidearm unconsciously. “You ever seen anything move that fast in a hangar?”

  “No,” Remy said. “But I’ve dreamed about it.”

  The five mechs of Squad B dropped from their docks one by one, feet slamming into the catapult rails.

  The moment all systems turned green, Commander Heath's voice came sharp over comms. “Haralds to control: open the west gate. We pursue on ground and overpass. Don’t lose visual.”

  :: CONFIRMED

  :: WEST GATE DISENGAGING

  :: CAUTION — HIGH-SPEED TARGET

  Beyond the blast gate, the Pacific wind howled. Rain lashed the tarmac outside the Iron Fortress. A faint blur was already vanishing toward the cliffs.

  “Squad B,” Heath called, “this is a live chase. Bring it in if you can. Do not destroy unless given permission.”

  “Understood,” came the chorus.

  The gate dropped.

  And five mechs shot forward like thunder rolling across metal earth, engines screaming, ground splitting beneath them. They had eyes on the fastest machine built by human hands.

  And it was running like it never wanted to be caught again.

  The storm cracked wide above the ocean as the cheetah mech tore across the ridgeline, its sleek black chassis a blur against the saturated cliffs.

  In seconds, it reached the edge.

  Squad B was right behind it — Bolvota and Bayzato bounding across the slick earth with seismic strides, plasma jets adjusting to the shifting terrain. The others came behind, forming a V pattern above the rocky shelf.

  Commander Heath’s voice barked through comms, steady and cold:

  “Do not engage. Track and contain. It’s heading for the drop.”

  Ten meters from the cliff, the cheetah mech leapt.

  It didn’t hesitate — didn’t even slow.

  Its frame twisted mid-air. The rear legs split and folded into narrow fin-like shapes, joints locking with hisses of vented steam. The front claws retracted into sleeker thruster units, then flared.

  With a splash that split the storm tide in two, it plunged into the sea.

  Natsumi was the first to react. “Aqua-form transition. It’s adapting for ocean travel!”

  From above, the view was a boiling churn of foam and stormlight.

  Remy’s HUD locked on. “Target re-acquired — seventy meters down — it’s accelerating.”

  Kayley swore. “It’s fast underwater too?!”

  Bacravani leapt forward, engines roaring as it vaulted off a rock ledge and hovered over the churning surface.

  Bevi and Bestemyti joined the formation just behind, flanking high. Only Bayzato dropped lower, trailing its aquatic sensors along the surface, mapping sonar as they followed the rogue signal.

  “Heath, it’s moving west-by-northwest,” Bahati called. “Deep trench route. Might be heading off-island.”

  Commander Heath watched the radar, jaw tight. “It knows the terrain. It planned this.”

  Calvin’s voice cut in, tinny through the channel. “It’s running like it’s done this before.”

  The mech below sliced through the black water like a torpedo, its glow dimming as it dove deeper — too fast for subsurface missiles to lock, too agile for the aquatic drones to keep pace.

  Kota muttered, “What are you?”

  Haralds Heath didn’t answer.

  He just stared into the rain, watching the ghost of the cheetah vanish into the depths — and wondering what else had just awakened.

  The Iron Fortress stood tall, its metallic frame gleaming in the early morning light that pierced through the rolling clouds of the Pacific sky. The facility's core was a massive command hub, housing several levels of high-tech operations. The lower floors were dedicated to the tech teams, medical units, and storage rooms, while the upper levels belonged to the command staff — Commander Vel Orsin and Vice Commander Helena Rourke.

  Back at the fortress, the tension was palpable. Despite the storm raging outside, everything inside was calm, organized — ready for any incoming report. Vel stood at the tactical holo-table, his gaze fixed on a map showing Squad X's progress across the Sayan ruins. His fingers lightly traced across the glowing coordinates as he reviewed the data coming in from the ground teams. It wasn’t long before he turned to Helena, who was standing near the console, scanning her own set of reports.

  Helena looked up, her expression unreadable. "We've got no word from Squad X in the last 30 minutes. The signal is still coming in from the ruins, but they’re moving slower than expected. Something's off."

  Vel rubbed his jaw thoughtfully. “Could be that they're running into resistance. I don’t like the silence. Keep an eye on their systems, and let’s prepare a backup plan.”

  Down in the depths of the ocean, Squad B was fully engaged. The cheetah mech’s high-speed capabilities were pushing their limits, but they were relentless. The squad had tracked the mech for miles now, navigating through the underwater trenches with their advanced submersible mechs.

  "Commander Heath, we’ve got a lock on it," said Afzal Ito, pilot of the Bayzato mech. "It’s fast, but not invincible. We’re gaining on it."

  Haralds Heath’s voice came over the comms, steady and determined. "Stay on it. Keep the formation tight. We’re going to push it into a corner. We can’t let it escape again."

  Kota Thacker, piloting the Bolvota, called out next. "We’ve got it in our sights, but it’s got some tricks up its sleeve. It’s turning sharply. Trying to shake us."

  "Keep up!" Heath ordered. "We’re almost there."

  The cheetah mech was faster than anything they’d ever encountered, but the squad’s teamwork and relentless pursuit were starting to close the gap. It darted in and out of the rocky trenches, trying to lose them in the dark waters, but Squad B was used to the unpredictable. They adjusted their strategies in real-time, pushing forward.

  Heath crossed his arms, watching intently as Kota Thacker’s Bolvota mech tore through the turbulent terrain of the oceanic cliffs, its thrusters flaring with each burst of speed.

  "Keep pushing! Don’t let it get away," Heath’s voice crackled over the comms to Squad B. "I know it’s fast, but you’ve got this!"

  Natsumi Kayode, standing at Heath’s side, kept her gaze sharp, her fingers dancing over the holo-interface. "Squad B’s giving it everything they’ve got, but we’re up against a beast of a machine. We need a backup plan if this doesn’t work."

  "Not yet," Heath replied firmly, his eyes still glued to the holo. "They’re closing in. We’ll give them a little more time. Just keep them focused."

  The chase was relentless. Kota Thacker’s Bolvota, piloted alongside Calvin Reyes, was in the lead, pushing the limits of its speed. The mech’s thrusters hummed, sending plumes of vapor into the air as it followed the faint trail of the cheetah mech, whose body zipped ahead like a blur.

  "Commander Heath, it’s still ahead of us!" Calvin Reyes shouted, his voice strained over the comms. "We can’t keep up with it for long!"

  Afzal Ito’s voice came through from the Bayzato mech, a mix of determination and frustration in his tone. "We’re losing ground! It’s too fast—we need to outsmart it."

  Heath’s voice rang in through their comms, stern but encouraging. "You’ve got this, Squad B! Don’t back down. Stay sharp, use the terrain—get creative."

  Dacre Tavares, pilot of the Bacravani, added, "We’ll box it in! I’ll cut off its route from the east—no escape."

  Despite their efforts, the cheetah mech darted effortlessly between rocks and canyons, its agile movements making it nearly impossible to keep up with.

  "It’s breaking off!" Kayley Raine said in Bayzato, her voice filled with disbelief. "It’s losing us!"

  Evan Philon’s voice crackled from the Bevi. "Squad B, we can’t track it anymore. It's gone."

  A moment of silence fell over the comms.

  At the Iron Fortress, Commander Heath was quick to compose himself. His mind raced through possible contingencies as Natsumi looked on.

  "We gave it a good chase, but we were outpaced," Heath said, giving a small nod. "We’ll need to regroup. Prepare a secondary plan if it reappears."

  Natsumi tapped a few buttons on her console, pulling up more data. "The cheetah mech is still out there, but we’ve got a lead. I’m running a sweep of the last known coordinates. The data might give us a clue as to where it’s heading next."

  Heath nodded. "Good. Let’s stay on it. Squad B did their best."