While one thousand elite crusaders sat in meditative silence on cedar benches in Floor 5, reverently sipping chilled mountain spring water from disposable conical paper cups, three hundred feet beneath their boots, an industrial miracle was unfolding at breakneck speed.
"Alright, people! Look alive and check your PPE!" Austin’s voice boomed through the subterranean cavern, amplified by the high-output PA speakers built into the suspension rim of his midnight-blue Sovereign Hard Hat. "Overseer-04 bought us a thirty-six-hour administrative delay window on the survey queue. That gives us exactly thirty-six hours to excavate, grade, run conduit, pour slab, and sweep three entire subterranean levels before those paying tourists finish their water cups!"
Standing in front of Austin within the newly blasted central access shaft were three thousand certified construction cultivators. Every single one was clad in fluorescent orange high-visibility safety vests, yellow hard hats, and steel-toed leather work boots. Heavy tool belts bristled with tape measures, chalk reels, and magnetic spirit levels.
Behind them idle-thrummed all twelve Caterpillar-Class Heavy Siege Golems. Their multi-ton hydraulic boom arms had been retrofitted with high-frequency pneumatic breaker chisels, their massive steel tracks biting into the broken aggregate. Flanking the golems stood three massive Earth-Drill Pangolins—including *Chonker*, whose four-foot front digging claws were vibrating with eager, dirt-hungry anticipation, his thick scaly tail thumping against the rock.
"Superintendent Tie Kuang!" Austin called out, stepping over a coiled bundle of heavy four-ought feeder cables and unrolling a fresh set of architectural blueprints across a steel gang-box. "Walk me through the structural specifications for Floors Six, Seven, and Eight."
Tie Kuang adjusted his wrap-around safety glasses, pulled a freshly sharpened yellow grease pencil from behind his ear, and tapped the architectural cross-section:
"Floor Six is the High-Voltage Electrical Substation and Switchgear Vault. We're looking at sixty thousand square feet of clear-span space with a six-inch fiber-reinforced concrete slab-on-grade. It needs to house eighteen 13.8-kilovolt switchgear lineups, three oil-filled step-down transformers, and overhead cable trays. Floor Seven is the Central Compressed Air and Mechanical Chiller Plant—twelve thousand square feet dedicated to dual industrial rotary screw compressors and four closed-loop high-capacity chillers. And Floor Eight is the Hydraulic Accumulator Sump and Heavy Drainage Basin, designed to handle up to twenty thousand gallons per minute of subterranean runoff!"
"Master Austin!" Xiaoyao called out, scurrying across the staging area with a water-resistant clipboard clutched to her chest. She adjusted her small yellow hard hat, which kept sliding over her eyebrows. "The batch plant on the surface has already mixed three hundred cubic yards of high-early-strength 5,000-PSI concrete! But Elder Tie is worried about the slump. We added the polycarboxylate superplasticizer, but the curing accelerator might cause flash-setting if the subterranean ambient temperature exceeds eighty-five degrees!"
"Keep the misting fans running on the aggregate piles," Austin ordered without missing a beat. "And tell the surface batch plant to maintain a four-inch slump. Concrete is chemistry, Xiaoyao, not alchemy. You don't let it cure dry. The hydration reaction requires continuous moisture. If I see a single shrinkage crack on Floor Six, someone is spending their weekend grinding down high spots with a diamond cup wheel."
"Understood!" Xiaoyao squeaked, frantically scribbling notes with a carpenter’s pencil.
"Right," Austin said, snapping the Velcro cuffs of his heavy split-cowhide work gloves tight. "Primary trenching and wall grading starts now. I’ll handle the bulk excavation and perimeter cuts with coronal plasma. Chonker, you and the pangolins follow directly behind me on primary muck clearance. Golems take secondary crushing and skip-loading. Tie Kuang’s concrete crew pours slab immediately behind the trenchers. Jiang Taixu, take five hundred carpenters and start erecting unistrut cable ladders the second the slab can bear foot traffic. Let's move!"
Austin stepped forward to the unyielding granite bedrock face of Floor 6.
He planted his feet in a wide, balanced stance on the rough gravel. Channeling his Level 60 Sol-Class core, he activated his newly unlocked thermodynamic capability: **True Coronal Streamer Manipulation**.
*FZZZZZZZZZZT!*
From the hardened steel jaw of the five-foot Stellar-Steel pipe wrench held in his right hand, a blinding, needle-thin beam of superheated, self-collimating solar coronal plasma erupted like a lance of solid white sunlight. Operating at an astonishing ten million Kelvin, the plasma lance did not simply shatter stone through blunt thermal expansion; it vaporized solid granite, quartz, and basalt along their crystalline molecular boundaries with zero micro-fracturing.
Austin swung the heavy pipe wrench in broad, sweeping geometric arcs.
*SHRRRRR-ZZZZT!*
No explosion roared—only a high-frequency, supersonic hiss. Where the coronal beam sliced through the rock, thousand-ton monoliths of ancient mountain stone were severed from the bedrock like chilled butter under a hot wire. The severed rock faces were left so impossibly planar, vertical, and plumb that they reflected the flickering overhead halogen work lights like mirror-polished black obsidian, held to an architectural tolerance within zero-point-two millimeters!
"Chonker! Clear the muck!" Austin barked over the roaring hiss of vaporized silica.
*SNORT!*
The giant pangolin let out a joyous, rumbling squeak. Diamond-hard scales rattling like armor plates, Chonker threw his twenty-foot bulk directly into the freshly severed rubble. With sweeping, rhythmic scoops of his three-foot front claws, the beast excavated thirty tons of loose aggregate per minute, flinging the rock cleanly over his armored shoulders directly into the awaiting steel loader buckets of the Caterpillar Siege Golems.
*BEEP... BEEP... BEEP...*
The siege golems moved with the clockwork discipline of heavy mining equipment. Their diesel-equivalent spiritual engines chugged in low, throaty rhythms as they rolled back and forth along the graded haulage corridor, dumping sixty-ton skips into the automated vertical hoist shafts.
Immediately behind the golems came Jiang Taixu and five hundred sect carpenters. Armed with cordless pneumatic framing nailers, rotary laser levels, and bundles of galvanized unistrut channels, they bolted heavy steel falsework to the obsidian walls with explosive powder-actuated fasteners:
*BANG! BANG! BANG!*
"Check the laser line!" Jiang Taixu shouted, sighting down a glowing red beam projected across fifty yards of raw cavern. "Keep the cable ladder plumb within a sixteenth of an inch! Master Austin will dock our spirit stone bonus if these switchgear runs have a dogleg in them!"
Directly behind the carpenters rolled Tie Kuang’s concrete finishing team.
Three heavy-duty transit mixer chutes extended from the vertical slick-lines, discharging a continuous, creamy river of 5,000-PSI fiber-reinforced concrete across the leveled gravel bed. Cultivators from the Iron Blood Sect, clad in rubber knee boots and fluorescent vests, dragged long-handled magnesium bull-floats across the wet slurry with methodical, practiced strokes, eliminating voids and bringing the paste to a glassy, mirror-flat finish.
The synchronization was absolute. Excavation, mucking, structural framing, electrical rough-in, and slab finishing progressed simultaneously in an unbroken, subterranean assembly line.
In the span of exactly twelve hours, Floor 6 was completely carved from the living stone, its sixty thousand square feet of concrete floor cured enough for foot traffic, wired with eighteen 13.8-kilovolt switchgear cabinets, and illuminated by ceiling-mounted industrial LED strip lights.
By hour twenty-four, Austin had driven the plasma lance through the floor of Level 6 to open Level 7. The Central Compressed Air and Mechanical Chiller Plant was sliced out of the mountain granite, plumbed with four-inch schedule-80 galvanized steel pipe lines, and fitted with dual industrial rotary screw air compressors that immediately pressurized the facility’s pneumatic manifold to one hundred and twenty-five PSI.
By hour thirty-four, Floor 8 had been cleared down to negative four hundred feet. Austin walked the length of the newly carved drainage trenches with a four-foot digital spirit level in hand.
"Tie Kuang!" Austin called out, checking the digital readout on his level.
Tie Kuang jogged over, wiping sweat and gray concrete dust from his forehead with a cotton shop rag. "Yes, Boss?"
"Look at this pitch," Austin said, pointing his yellow grease pencil at the level display. "One-quarter inch per foot. Exactly zero-point-two-five degrees of fall all the way from the east wall to the central titanium sump basin. That means zero standing puddles, zero slip hazards, and no stagnant sediment buildup. That’s how you grade a drainage floor."
"The men poured their hearts into the screeding, Boss," Tie Kuang grinned broadly, his white teeth flashing through his beard. "We even applied a clear epoxy dust-proofer to the entire surface."
"Good work," Austin nodded. "Now, clear the staging gear. It's time for the main event."
Austin turned to the final descent shaft and stepped onto the edge of the yawning chasm leading down to **Floor 9** (-450 meters).
This was the designated **Cataclysmic Endgame Boss Chamber**.
Carved deep into the mountain’s tectonic roots, Floor 9 was a colossal circular arena spanning two hundred paces in diameter, enclosed by vertical granite walls towering eighty feet into the air. Overhead, a massive domed ceiling of solid bedrock was stabilized by an interlocking web of heavy structural titanium box-trusses, cross-braced with high-tensile steel tension rods.
At the exact center of the vast arena floor sat a circular, four-inch-thick solid copper grounding pit, six paces wide. Heavy copper bus-bars, each the thickness of a man’s forearm, radiated outward beneath the floor slab, tying directly into the mountain’s 500-MCM perimeter earth-grounding loop.
Austin walked to the center of the arena. His steel-toed boots echoed crisply off the pristine, polished stone surfaces. He wiped a stray smear of rock dust from his chin, glanced around the silent, immaculate colosseum, and felt a deep, craftsman’s satisfaction settle into his bones.
"Floor Nine is fully operational," Austin muttered, pulling his brass pocket watch from his vest pocket. He clicked the lid open. "Thirty-five hours and forty-two minutes. Eighteen minutes to spare."
Right on cue, the amber strobe light mounted above the high-speed freight elevator bulkhead began to rotate with a rhythmic, pulsing hum:
*DING-DONG.*
The clear, synthetic soprano of AI Overseer-04 resonated through the newly installed overhead paging horns:
*"Attention, Master Austin Chu Yuan. Guest surveys on Level Five have concluded with a ninety-eight-point-four percent positive rating. The Grand Crusader Alliance has concluded their complimentary water refreshments and meditative rest period. The elite boss-raid party has entered the express vertical transit car and is currently descending to Floor Nine. Estimated arrival: one minute and forty-five seconds."*
Austin smiled, resting the heavy knurled handle of his five-foot Stellar-Steel pipe wrench across his shoulder. He turned toward Tie Kuang, Jiang Taixu, and Xiaoyao:
"Alright, crew. Pack up your tools, roll up the extension cords, and evacuate to the Level Six observation catwalk via Service Stairwell C. Lock the gang-boxes behind you. It’s time to give our paying customers the five-star boss encounter they paid four hundred and fifty thousand spirit stones to experience."
Tie Kuang saluted with his grease pencil, and the construction crews vanished into the service access doors with practiced speed, leaving Austin standing alone beneath the bright white halogen lights of Floor 9.