Subterranean Floor 1 smelled cleanly of ozone, cold granite, and light machine oil.
Austin stood by the automated conveyor line with a long-spouted brass oiler in his right hand and a clean cotton wiping cloth tucked into his apron string. He leaned over each spirit-iron roller bearing in turn, laying the copper spout against the oil hole and giving the flexible bottom a measured thumb-press: *click-drip, click-drip.*
Three drops of thick mineral lubricant per journal. No more, no less.
The results were music to a craftsman’s ears. The sixty-foot canvas belt hummed with a low, whisper-quiet purr. The thirty-pound blue crystal blocks glided toward the sorting arm with a steady, metronomic cadence: *whir-click, whir-click.*
"Friction coefficient dropped eighty-five percent," Austin muttered, wiping a stray drop of oil from the brass tip. "True hydrodynamic lubrication. Zero thermal galling on the sleeve bushings, zero chatter on the idler brackets. That’s how a production line is supposed to run."
From the spiral staircase in the northwest corner, heavy paws came pattering down the stone treads.
*THUMP-THUMP-THUMP.*
It was Pug, the Three-Headed Nether-Solar Cerberus, trotting down from the surface porch.
The eight-hundred-pound hound had clearly grown sick of napping on the sunlit timber deck. All three black-scaled heads were held high, nostrils twitching as they sampled the cool, freshly ventilated cavern air. His ruby star-pupils blinked in curiosity at the violet work lamps strung along the rock walls, and his stubby tail was wagging hard enough to blur: *thwap-thwap-thwap.*
He closed the distance across the obsidian floor in three lumbering bounds.
Before Austin could raise a warning hand, three huge pink tongues lashed out together, plastering his hemp apron with a warm, slobbery swipe that nearly knocked him out of his straw sandals.
"Whoa! Down, boy!" Austin laughed, catching himself on a timber upright. He reached up with both hands, rubbing the middle head behind its armored ears while the left and right heads bumped playfully against his ribs. "Watch the roughhousing, Pug. Strict safety codes on this floor. One stray tail in a drive pulley, and we’re shutting down the whole shift for an incident report. Where’s your high-vis vest?"
Pug rumbled a deep, three-throated purr that sounded like a tractor idling in low gear. The hound sank onto his belly, splaying six front paws across the cool obsidian tiles, resting his three chins squarely across Austin’s feet.
Then all six pointed ears snapped forward.
Pug's heads jerked up, snouts pointing toward the eastern wall.
Twenty yards past the main breach sat a narrow, three-foot exploratory borehole—one of the pilot shafts the Iron Pavilion had drilled into the mountain before bringing up their primary siege skiff. From deep inside that dark stone pipe came a dry, rhythmic scratching sound:
*Scritch-scritch-scratch.*
Pug’s three heads dropped low to the tiles.
A deep, multi-tonal growl vibrated in the dog’s ribcage. Violet tribulation static crackled along his black spine, and the miniature solar furnaces behind his ruby pupils flared bright as forge fires.
*WHOOSH.*
With a concussive launch that kicked up a shower of loose slate, the eight-hundred-pound dog shot straight down the side tunnel!
"Pug! Get back here!" Austin yelled, snatching his five-foot Stellar-Steel pipe wrench from the workbench and taking off after the hound. "Don't run off into unmapped terrain! You'll pull cave spider aggro or step on an unrendered trigger plate!"
***
Seventy yards deep in the mountain bedrock, the exploratory tunnel was cold, cramped, and pitch-black.
Three Earth-Drill Scaly Pangolins were clawing frantically through a pocket of quartz shale.
They were massive, fifth-rank subterranean spirit beasts: eight feet long from snout to tail tip, weighing a ton apiece, armored in overlapping plates of dark-iron scales as thick as boiler iron. Their shovel-shaped forelimbs were armed with curved diamond-grade claws that could rip solid granite into gravel.
Bred by the Iron Pavilion's master prospectors as heavy tracking mounts, they could scent spiritual ore veins through three miles of solid rock. But when the supercritical steam geyser erupted from the main shaft, their handlers had bolted in screaming terror, leaving the three pack beasts stranded in the subterranean dark.
The lead pangolin—a thick-shouldered bull with scarred front plates—stopped digging.
Its leathery snout twitched in the damp air.
The scent drifting down the shaft carried no trace of moist dirt, coal dust, or quartz. It reeked of Ancient Solar Annihilation.
Two glowing sapphire paw-prints sizzled into the stone floor ahead, stone vaporizing with a faint hiss.
Then three colossal, fanged wolf heads emerged from the darkness.
Six burning ruby eyes—radiating the crushing, ancient weight of a Nether-Sun that had swallowed dead stars—locked squarely onto the three beasts.
The three armored pangolins, creatures that routinely tore through subterranean cave drakes and iron-jawed rock serpents, turned completely rigid.
Their heavy scales began to chatter against their hides like dry shingles in a storm: *clack-clack-clack-clack.* Their legs melted into water.
Without a second thought, the three beasts defaulted to their ancient survival reflex: they tucked their snouts into their bellies, curled their armored tails tight around their skulls, and locked themselves into three massive, perfectly round, scaly iron balls!
Curled inside their shells, the three monsters let out tiny, high-pitched, pathetic squeaks:
*Eeeek! Chitter-squeak!*
Pug trotted over to the three trembling iron spheres.
His left head tilted sideways, sniffing the lead pangolin’s armored tail. The right head reached out, giving the dusty scales a loud, moist lick: *slurp.* The middle head gave an inquisitive, rumbling *woof*.
To the Three-Headed Nether-Solar Cerberus, these were not ferocious fifth-rank predators.
These were giant, squeaky rubber balls.
Pug's stubby tail wagged with violent canine enthusiasm. His left head gave the round, curled-up lead pangolin an energetic nudge with a wet black nose.
*NUDGE.*
The eight-hundred-pound ball immediately began rolling down the smooth, descending thirty-degree slope of the pilot tunnel:
*Roll-roll-roll-CLATTER!*
Pug let out a thunderous, triple-throated bark of pure joy, the sonic boom cracking small stalactites from the roof! Bounding after it, the giant hound nudged the second armored ball, then the third, merrily herding the three whimpering, bouncing iron spheres down the tunnel toward the workshop like a sheepdog pushing overgrown bowling balls!
***
Back on Subterranean Floor 1, Austin hurried out of the tunnel mouth with his wrench at the ready, only to skid to a sudden stop on the obsidian tiles.
*CLATTER-ROLL-ROLL-THUMP.*
Three huge, perfectly spherical balls of dark-iron scales came rolling smoothly out of the dark, bouncing across the floor before coming to a gentle stop right beside the ore collection hopper.
Trotting right behind them was Pug, all three heads held high, tongues lolling in goofy grins, his entire rear end wagging with pride.
The middle head looked up at Austin, letting out a soft, expectant *whuff*, practically asking: *Look what I fetched! Can we keep them?!*
Austin lowered his wrench, eyebrows climbing up his forehead.
He stepped over and tapped the nearest scaly ball with his wooden folding rule.
The ball flinched, letting out a muffled, terrified squeak: *Chitter-whimper!*
Austin blinked, pulling up his developer interface:
Austin’s eyes lit up with pure, unadulterated logistics ecstasy.
"Draft animals," Austin breathed, kneeling on one knee and laying a hand on the cool iron scales of the lead sphere. "Pug, you beautiful hound. You didn't pull cave spiders; you brought home heavy-duty biological haulage units for the secondary transport loop!"
The lead pangolin cautiously parted its armored tail by an inch.
A single, terrified black eye peeked out from the dark crease.
It didn't see an apocalyptic hellhound preparing to snap its spine. It saw a tired-looking man in a hemp apron, smiling with calm, steady warmth. A comforting, gentle solar heat radiated from Austin's bare hands, cutting through the bone-deep chill of the deep rock.
The pangolin blinked.
The warmth sank through its iron plates into its cramped muscles. Slowly, deliberately, the eight-foot beast uncurled its armored body. It laid its broad, shovel-nosed head flat across Austin’s straw sandal and let out a soft, contented chirp:
*Chitter-purr.*
Austin chuckled, scratching the tough, leathery skin right beneath the creature's armored throat.
"Good boy. Four thousand five hundred Newtons of tractive pull force," Austin said, running an eye over the beast's thick shoulders, low center of gravity, and stocky legs. "Low profile. Tight turning radius. Zero fuel consumption—they eat mineral slag and basalt gravel straight from the furnace scrap pile! This solves the haulage bottleneck between the western quarry face and the crusher hopper."
He stood up, dusted off his apron, and walked over to his heavy wooden tool chest. He pulled out three heavy coils of braided leather strapping, a fistful of copper rivets, and a box of cast-bronze harness buckles.
"Proper draft rigging," Austin noted, unfolding his brass measuring tape to gauge the creature's neck circumference. "You can't use cheap breast collars on an animal pulling uphill. A breast strap rides up and chokes the windpipe under load. You need a proper curved horse collar with padded hames. That spreads the draft load right across the skeletal shoulder ridge. With four thousand five hundred Newtons of tractive force, each one of these boys can haul a two-wheeled dump cart loaded with two tons of crushed ore up a fifteen-degree ramp without breaking a sweat."
He cupped his hands around his mouth and shouted toward the storage racks:
"Li Xiaoyao! Get over here!"
A moment later, Xiaoyao came jogging down the aisle between the pine bins, clutching his iron clipboard.
The young disciple stopped dead in his tracks, eyes bulging as he took in the scene: three colossal, armored earth monsters currently nuzzling Austin’s knees like oversized sheep, while Pug sat watching over them like a contented farm dog.
"M-Master!" Xiaoyao stammered, voice cracking into a squeak. "Those... those are the Iron Pavilion’s sacred Earth-Drill Scaly Pangolins! Each one is a fifth-rank spirit beast worth fifty thousand spirit stones! How... where did they come from?!"
"Pug fetched them out of the exploratory bore," Austin said casually, tossing a coil of heavy leather strapping into Xiaoyao's arms. "Take the measuring tape and help me measure their neck and chest circumferences. We're cutting heavy-duty draft collars and hitching them to the two-wheeled ore carts. Starting tomorrow, our aggregate transport is fully mechanized."
Li Xiaoyao clutched the heavy leather straps, staring at the purring, armor-plated monster beasts in dazed, holy awe.
*Even the iron-scaled beasts of the deep abyss...* Xiaoyao thought, soul trembling with reverence, *...are tamed by the Master's divine warmth to become humble pack mules for His celestial forge!*