When the Golbat opens its four-way maw, the sound that tears out isn’t a scream. It’s a physical weight. Supersonic. The sound waves hit the concrete walls and ricochet, amplifying until the air itself feels like it’s being shredded by a thousand jagged saws. My equilibrium doesn’t just slip; it vanishes. The tunnel floor tilts forty-five degrees to the left, and the ceiling feels like it’s descending to crush my skull.

  I drop to one knee, hands clamped over my ears. I don't need a computer to tell me I’m in trouble; my own inner ear is screaming, my stomach doing slow, sickening flips. Through the haze of the strobe-light vertigo, I see the driver—his mouth moving in a silent "Kill"—and then the blur of dark wings.

  Beldum is a streak of blue light. It intercepts the beast mid-air, a sickening thud of metal on sinew, but the Golbat is a veteran of the dark. It doesn't recoil; it wraps. Its wings, thin and leathery like living shadows, fold around Beldum’s casing, pinning its primary magnet. Then, the maw widens.

  Crunch.

  The sound of the bite is like a nail being driven into a car battery. This isn't just physical pressure; it’s a surge of Dark-type malice. I see a flicker of black, oily energy bleed from the Golbat’s fangs, tasting like ozone and rot in the back of my throat. It’s the sound of structural failure. The fangs don't just graze; they find the seams in Beldum’s armour, piercing the impenetrable steel through sheer, predatory spite.

  “Beldum!” I try to shout, but my voice is swallowed by the lingering echo of the screech.

  The Golbat detaches, back-flapping into the shadows of the ceiling, and exhales. A thick, violet fog begins to roll out of its throat, heavy and cloying.

  Poison Gas.

  Beldum is a Steel-type; the toxin shouldn't touch it. But as the cloud swallows us, the gas reacts with the open wounds left by the Crunch. The black energy from the bite acts like a catalyst, drawing the poison deep into the internal circuitry where the armor is gone. I see Beldum’s eye-lens flicker, a stuttering, dying red. It isn't poisoned in the biological sense—it’s short-circuiting. The toxin is gumming up its magnetic relays, turning its levitation into a desperate, grinding whine.

  I cough, the violet haze stinging my lungs. It tastes like scorched rubber and bitter almonds. Within seconds, the humvee is a ghost, the grunts are shapes in the mist, and the air is a shroud.

  The Golbat dives again. Air Slash.

  I hear the whistle of vacuum-packed wind and throw myself flat against the concrete. The blade of air shrieks over my head, missing me by an inch and slamming into the humvee’s side with a sound like a meat cleaver hitting a butcher’s block. A second slash follows, aimed lower. It clips Beldum’s side, sending a spray of sparks into the dark.

  Beldum hits the ground, its body vibrating with a high-pitched, agonizing whine. The Golbat lands on top of it, claws scraping against the pits the fangs left behind, its head cocked as it prepares to finish the job.

  I look at Beldum through the swirling violet fog. It’s pinned, broken, and leaking magnetic static. But through the crack in its lens, I don't see a defeated creature. I see a mirror. I see the same refusal to die that’s kept me breathing, kept running, kept surviving. We are the same thing: scrap metal and scar tissue, held together by nothing but spite.

  The sugary static in my brain—the only link I have to my partner—suddenly turns into a roar of white noise. It’s not a command. It’s a total synchronization.

  Give me everything.

  Beldum’s internal processor, its singular, brilliant brain, begins to do something impossible. It begins to divide. I feel the sensation in my own skull—a phantom pressure, as if my frontal lobe is being peeled apart by a cold, magnetic wire. The sound of the evolution isn't a glow; it’s the sound of an implosion.

  The magnetic field Beldum emits suddenly reverses. It doesn't push; it pulls.

  The humvee groans. The steel doors, already jammed, are wrenched off their hinges by invisible hands. The bolts pop like gunshots. The heavy plating from the trunk, the spare parts in the back, the very ribs of the Syndicate-car begin to warp and fly inward toward the centre of the fog.

  The Golbat is thrown off by a surge of kinetic force that sends it screaming into the ceiling. The driver stumbles back, his mask cracking as the air pressure in the tunnel drops.

  The evolution isn’t a mechanical repair; it’s a predatory consumption. At the centre of the storm, the humvee begins to unmake itself, the reinforced chassis and Syndicate-grade alloy vibrating until the solid steel shatters into a fine, glittering dust. This isn't a collection of spare parts; it is fuel, pure and simple. Beldum acts as a psychic singularity, drawing that metallic cloud into its core to trigger the division. I watch through the blinding blue-white discharge as the singular eye-lens splits into two, and the energy released by the process anchors the floating dust into a new, permanent form.

  Inside the halo of light, I feel the snap—a psychic cleaving that echoes in my own mind as one consciousness becomes two. The singular brain of the Beldum tears itself apart to create the dual-core processing of a Metang. Its body elongates, the transmuted matter of the vehicle forced into a new shape by the sheer weight of the twin minds. When the light dies, two red eyes burn through the settling debris, and two massive, clawed arms hang ready where a single, blunt body once floated.

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  The Golbat tries to flee, its instinct finally overriding its training. It beats its wings frantically, heading for the tunnel mouth.

  Metang doesn't let it. It doesn't even move its body. It just reaches out with its mind.

  Confusion.

  The Golbat stops mid-air. It doesn't just stop; it freezes. I see the veins in its wings bulge, then burst. It’s being crushed by its own weight, the air around it turning into a vise. With a flick of Metang’s new, heavy arms, the beast is slammed into the concrete floor with enough force to crater the ground.

  The driver drops his knife. He looks at the wreck of his car, then at the two-armed steel nightmare hovering where a small blue ball used to be. He turns to run, but the humvee—what’s left of it—is already in his way.

  Metang turns its two eyes toward me. The static in my head has settled into a deep, resonant chord. It feels like a heartbeat. A double-beat.

  I push myself up, my hand trembling as I reach for the Houndour’s case, which is now sitting in the middle of a literal scrap-heap. My head is spinning, and I’m pretty sure I’ve inhaled enough poison to kill a Donphan, but I’m standing.

  I look at the new shape of my partner. “Nice of you to join us,” I wheeze.

  Metang answers with a dual-toned pulse that vibrates the very floor beneath us. Understood.

  We have the asset. Now, we just have to get out.

  The silence that followed the Golbat’s collapse was heavier than the noise that preceded it. The violet mist of the Poison Gas was gone, atomized by the birth-cry of Metang’s magnetic field.

  I stood in the center of a graveyard. The humvee wasn't just broken; it had been harvested. The heavy steel of its frame had been pulled into the singularity of the evolution, leaving behind a hollowed-out ghost of plastic, glass, and leather. The driver was gone, his footsteps a fading frantic rhythm somewhere up-tunnel, but he wouldn't be alone for long.

  "Metang," I wheezed. The name felt different in my mouth—sturdier, heavier.

  The creature turned. It didn't have the curious tilt of Beldum. It moved with a terrifying, calculated grace, its twin eyes locked in perfect synchronization. The magnetic link between us had changed too; it wasn't a sugary hum anymore. It was a resonant, low-frequency chord that made my skull ache.

  Behind us, a new sound began to grow. It wasn’t the high-pitched whine of Syndicate tech. It was the rhythmic, tectonic thud of heavy stone hitting concrete, accompanied by the low, gravelly shouts of men who sounded like they ate grit for breakfast.

  The Boldoors.

  The black market’s internal security didn't care about internal squabbles or a stolen Houndour, but they cared deeply about a high-value Syndicate artery being turned into a scrap heap. I looked back and saw the red crystals of a Boldore glowing in the dark, and behind it, a group of men in reinforced leather vests—the Boldoors—moving in tight formation.

  "They're boxing us in," I muttered. My head was swimming, the lingering effects of the Golbat’s poison making the edges of my vision fray like burnt paper. "They aren't going to let us walk out the front door after wrecking the place."

  I looked at the Houndour case. It sat on the bare concrete where the humvee’s trunk used to be, looking small and vulnerable. I couldn't outrun a gang of rock-specialists in a straight line, hurling boulders like artillery, not while carrying thirty kilos of "status symbol."

  The first boulder didn’t hit the floor; it hit the air.

  A jagged chunk of granite, hurled by the lead Boldore with the force of a cannon, whistled through the dark. Five feet from my head, it slammed into an invisible wall of magnetic pressure and shattered into harmless pebbles. Metang didn't even flinch. It remained hovered over the skeletal remains of the Humvee, its twin eyes scanning the tunnel with a rhythmic, side-to-side pulse.

  "We have to move!" I yelled, my voice cracking. The poison was a leaden weight in my chest, and the Boldoors were closing the gap, their heavy boots a rhythmic thrum against the concrete. "If we go back, we’re crushed. If we stay here, they'll just rain stone until the ceiling drops."

  I looked at the narrow maintenance grate to our left. I didn't know where it went. For all I knew, it was a vertical drop into a geothermal furnace.

  Metang’s dual-toned hum changed. It wasn't a growl; it was a command.

  The creature drifted toward the grate, its arms tucking inward. Suddenly, the static in my head—the psychic link we shared—cleared. I didn't see the tunnel anymore; I felt the frequency of it. Metang was projecting its findings into my mind: the hollow resonance of the space below, the humid air rising through the iron bars, and the specific cadence of machinery far beneath us.

  It wasn't a gamble for Metang. It was a calculation. It had heard the roar of the Arena through the metal pipes and identified the "Staging Pits" as the only zone with a high-volume atmospheric exit.

  Down, the thought resonated in my skull, cold and absolute.

  "You're sure?" I wheezed.

  Another boulder shrieked through the air, this one catching the edge of the Humvee’s ruined frame and flipping the two-ton wreck like a coin. The Boldoors were laughing now, a grim, echoing sound. They had us pinned.

  Metang didn't answer with words. It slammed its two massive, clawed arms into the concrete surrounding the grate. It didn't just break the iron; it leveraged the very foundation of the tunnel. With a violent, magnetic wrench, it peeled back the floor like a tin can.

  Jump.

  I didn't think. I grabbed the Houndour case, tucked my chin, and threw myself into the yawning black throat of the spillway.

  The descent was a chaotic blur of corrugated iron and slime-slicked concrete. I felt Metang’s presence right behind me, its magnetic field acting as a buffer, slowing my fall just enough to keep the friction from burning through my jacket. Then, the vertical shaft ended abruptly in a violent, horizontal rush of water.

  The spillway was a massive, reinforced concrete throat choked with the city’s industrial runoff. I hit the current like a stone, the freezing water stealing the last of my breath. The Houndour’s case was a lead weight dragging me under, but a metallic claw clamped onto my collar, hoisting my head above the churning foam. Metang wasn't just swimming; it was rail-gunning through the pipe, using the iron rebar embedded deep in the concrete to pull us forward at a suicidal pace.

  The roar of the Boldoors’ artillery was replaced by the hollow, rhythmic thrum of the water. Then, the concrete vanished.

  We shot out of the pipe and into a cathedral of blue light. The air was no longer thick with the copper tang of the Vault; it was charged with a crisp, electric ozone that made my skin tingle. We plummeted forty feet toward a subterranean lake, the water glowing with the reflected brilliance of a thousand floating, sapphire-coloured crystals.

  Metang pivoted mid-air, its magnetic field acting as a parachute, and we skipped across the surface of the lake like a flat stone before coming to a rest on a shore of soft, silver sand.

  I collapsed, the Houndour case sliding from my numb fingers. The silence was deafening. No sirens. No boulders. No roaring crowds. Just the rhythmic drip-clack of water and the low, primal hum of the earth.

  Across the small lake, tucked into the shadow of a massive, floating crystal formation, was a modest campsite. No high-tech Syndicate tents or gang scrap-fires. Just a simple bedroll and a collection of carved wooden toys scattered near a low-burning fire of dried moss.

  A figure sat by the water’s edge, his back to us. He wore a simple white shirt and a cap, his long, green hair cascading down his shoulders like a frozen waterfall. He didn't turn around when we crashed into his sanctuary. He didn't reach for a Poké Ball.

  "The stones told me a heart of iron was coming," the man said. His voice was soft, but it carried across the cavern with the weight of an edict. "But they didn't mention it was carrying a soul made of lead and stolen shadows."

  He stood up slowly and turned. His eyes were the colour of the crystals—sharp, perceptive, and disturbingly calm. He looked at Metang, then at the Houndour case in my arms.

  Metang. The others. Get them out. Tell them where we are.

  The command wasn't a shout; it was a desperate pulse of thought pushed through our shared link. I felt the response instantly—a dual-toned resonance in my skull. One half of Metang’s mind remained locked on the stranger, its eyes glowing with a predatory heat. The other half reached out, a precise psychic tether snapping toward my belt.

  The two Poké Balls hissed open.

  Muse and Luna materialized in the blue light. They were disoriented, but Metang didn't give them time to panic. I felt its second core transmit a high-speed data burst—the scent of the Boldoors, the rush of the water, and the current threat—directly into their minds.

  Luna planted her feet in front of my knees, baring its fangs. Muse huddled near the Houndour case, eyes darting toward the glowing crystals.

  "You've brought a prisoner into a place of freedom," He said, standing slowly. He looked at the invisible threads of Metang's psychic relay. "Tell me, Shadow of the Vault... why do your friends sound like they are screaming in a language you refuse to hear?"

  "Easy, Metang..." I wheezed, my world tilting into a final, heavy black. "He’s... not an enemy…I think."