“Mine.” The word, precise as a surgical cut, bled across the parchment. The acid in my gut boiled hotter than the tectonic vents below. Cualli. Always Cualli. Every trap, every twist of the blade, was for me. Not the Republic, not the alchemical secrets. Just me. “Matlal,” I said, my voice unnaturally steady, even to my own ears. I forced a laugh, a brittle, sharp sound. “Did he seriously draw you a treasure map to my heart? How… quaint.” Matlal, already folding the schematic with practiced ease, didn’t flinch. “He has a unique way of expressing his affections.” He tucked the parchment into an inner vest pocket, his movements economical, unreadable. “A master of anticipation, our good Doctor. Though I must admit, this particular vault design is rather… over-engineered for a simple extraction.” “Extraction,” I scoffed. “Right. He’s planning to put me in a gilded cage and feed me artisanal gruel until I forget how to jump off things.” I pointed to a series of glyphs near a pressure valve. “See that? A seismic dampener for the main conduit. It’ll trigger an air-seal the moment anyone tries to reroute the steam. And there,” I jabbed a finger at a seemingly innocuous ventilation shaft, “that’s not an exhaust. It’s a nitrogen flush. For ‘sweet, dreamless sleep,’ apparently.” Matlal’s brow furrowed, a flicker of genuine surprise in his eyes. “A nitrogen flush? He usually prefers a sedative gas. More… subtle.” “He’s getting bolder,” I muttered, tracing the copperplate ink. “Or perhaps just running out of patience.” The ink bit into the vellum like fresh claw marks. “Well,” Matlal said, his usual casual charm returning, “it’s a good thing you read the fine print. We’ll need to disable that dampener first, then reroute the secondary exhaust through the primary conduit to mask our thermal signature.” He pulled out a slim chronometer, its brass gears whirring softly. “We’ve got exactly seventeen minutes before the next shift change. No time to waste.” We moved. The vault was a symphony of grinding gears and hissing steam, a cavernous maw carved deep into the Tlecuil volcanic core. Catwalks shuddered under our boots, slick with mineral condensate. Above, colossal brass pipes pulsed with liquid heat, bathing the industrial cavern in an amber wash. The air was thick, sulfurous, and hot enough to melt rivets. Matlal was a whirlwind of practiced efficiency. He navigated the labyrinthine passages with the effortless grace of a born predator, his multi-tool humming as he bypassed security arrays. I followed, my eyes sweeping every shadow, every glint of brass. I imagined Cualli’s watchful gaze, his meticulous planning, his sickening devotion. Every whirring servo, every steam gauge, felt like an extension of his will. “Auxiliary valve, twenty degrees clockwise,” Matlal barked, his voice tight as he wrestled with a seized mechanism. “Quickly, Itzel!” I scrambled over a stack of discarded steam coils, my fingers skidding on the greasy metal. The heat was suffocating, sweat stinging my eyes. I gripped the thick brass wheel, its surface radiating an unbearable heat. Gritting my teeth, I leaned into it, muscles straining. The valve groaned, then slowly began to turn, a spray of scalding mist erupting from a hairline crack. “That’s it,” Matlal grunted, wiping sweat from his brow. “Now for the pneumatic bypass.” He pointed to a small, heavily armored console perched precariously on a catwalk overlooking a churning pool of molten rock. “I need you to cross that gap and cycle the override. There’s a laser grid, but it’s a simple three-axis sweep. Just don’t touch the metal deck.” “Nothing to it,” I quipped, knuckles whitening against the rail. The gap was a gaping maw, a hundred feet of nothing but superheated air and glowing magma. I took a running start, launching myself off the edge of the catwalk. The air screamed past me as I twisted mid-air, catching a dangling maintenance chain. My momentum swung me high, my boots just clearing the shimmering laser grid below. I arced towards the console, landing with a jarring thud, my palms stinging as I braced myself. I punched the sequence Matlal had given me. A series of green lights flickered across the console, followed by a resonant thrum that vibrated through the entire vault. “Got it!” I yelled over the din. “Excellent!” Matlal’s voice echoed, thin and distorted by the vastness. “Now, back to the main conduit. We’re almost through.” We pressed on, bypassing more hazards plotted with Cualli’s chilling foresight: a tripwire rigged to blast superheated vapor, a drop-floor over a slag chute, a trigger plate linked to a sonic stunner. My knowledge of his meticulous, twisted mind was our only advantage. Finally, we stood before the Grand Core itself, a massive, spherical containment unit humming with raw, untamed geothermal energy. Its surface shimmered with intricate alchemical runes, glowing faintly in the infernal light. This was it. The prize. The superweapon core. The key to Matlal’s freedom, and mine. “Alright, Itzel,” Matlal said, his voice laced with triumph. He pulled out a specialized siphon rig, its crystalline tip already glowing. “This baby will drain the core in less than a minute. Then we’re out of here.” I nodded, relief flooding through me, sweet and intoxicating. Almost free. Almost out. I turned to look back at the winding path we’d taken, the dangerous, exhilarating dance through Cualli’s carefully laid traps. My grin was wide, almost manic. That’s when the vault doors, the colossal, multi-layered steel behemoths we’d slipped through just minutes ago, slammed shut with a reverberating *CRUMP*. The sound echoed through the cavern, shaking the very foundations of the mountain. Steam hissed from the seams, sealing us in. The air grew still, the silence heavier than the sulfurous heat. “Well, that’s not ideal,” I said, my voice barely a whisper. My hand instinctively went to the hidden knife in my boot. From the deep shadows cast by the Grand Core, a figure stepped forward. Impeccably dressed, even in this inferno, a stark black tunic and trousers, tailored to perfection. His movements were fluid, graceful, almost predatory. His face, classically handsome, was serene, but his eyes… his eyes were the color of obsidian, reflecting the geothermal glow with an unsettling, dark devotion. Cualli. “Itzel,” he said, his tone deceptively gentle, locking down every drop of warmth in the chamber. “You always did enjoy a dramatic entrance. And exit, it seems.” He gestured to the humming core. “You came for the ‘superweapon core,’ didn’t you? So predictable.” He smiled, a faint, chilling curve of his lips. “But this isn’t a weapon, my dear. Not in the way you think.” He slowly raised a hand, tracing the air between us. “That console, Itzel, holds a blood-alchemy breath-anchor. Activated the moment you entered this chamber. It’s calibrated to your unique vitals. Now, I will always know where you are. Always.” The sheer scale of his trap locked around my throat. He hadn’t trapped me for the core, or for the Republic. He had lured me here to calibrate his cage. The sterile, inescapable void he’d promised. It was already closing in. “A locator?” Matlal said, his voice flat. He slowly, deliberately, lowered his extraction rig. “You brought her all the way here just for an *anchor*?” Cualli’s gaze remained fixed on me, his dark eyes never leaving mine. “She has a tendency to run, Matlal. This will… correct that.” Matlal let out a low whistle, a cynical, amused sound. “Well, that changes things, doesn’t it?” Before I could react, before I could even fully register the sudden shift in his tone, Matlal moved. His hand, lightning fast, snapped up. The siphoning device, heavy and metallic, transformed into a lethal weapon in his grip. The crystalline tip pointed not at Cualli, but at me. A perfect, unwavering aim at my chest. “Apologies, Itzel,” Matlal said, his voice stripped of charm, replaced by a cold, mercenary edge. “With an anchor attached, you're high-value collateral. The empire's bounty just quadrupled.” Cualli’s head tilted, just slightly. He still hadn’t looked away from me. “No one points a weapon at my heart.” His hand moved. A blur of black against the infernal glow. Matlal cried out, a sharp, choked sound. The brass tool clattered to the floor, bouncing once. Matlal stared at his own hand, twisted at an unnatural angle, his wrist visibly snapped.

The Brass Coatl Strikes