Beyond the orbit of the Stratospheric Skyway, fifty miles above the mortal atmosphere, the Near-Earth Asteroid Belt drifted through the black vacuum like a scattered field of sleeping stone titans.
To the high Daoist astronomers of the mortal empires below, these wandering celestial rocks were known as the "Grave-Mounds of Fallen Stars"—cursed, unapproachable omens of disaster that brought ruin, tectonic upheaval, and famine whenever their erratic trajectories grazed the firmament.
To Austin, however, squinting through the crosshairs of an optical surveying theodolite on the forward navigation bridge of Dreadnought 03, they were something far more sacred:
Free, un-mined, open-pit structural lumber floating in zero-G with zero overburden to strip and zero environmental impact statements to file.
"Look at that beauty at azimuth zero-eight-two," Austin murmured into his helmet microphone, his ballpoint pen clicking against his aluminum clipboard. "Roughly sixty thousand metric tons. Seventy-eight percent high-tensile nickel-iron, fourteen percent magnesium-silicate, and four percent cobalt. Zero groundwater contamination, zero permits required from the Bureau of Land Management. That’s enough raw structural alloy to frame three hundred solar mirrors in a single afternoon."
Beside him stood Tie Kuang, whose white pressurized suit was bristling with heavy pneumatic clamp-rings, and Southern Sword Saint Jiang Taixu.
Jiang Taixu was encased in a sleek, custom-tailored white-and-silver EVA pressure suit. On his head sat a pristine white ANSI hard hat with a customized gold visor, and around his hips was strapped a Class 3 fall-arrest harness fitted with four magnetic lanyard clips. Slung across his back was his legendary ancestral flying sword—its celestial blade now retrofitted with an insulated fiberglass grounding grip and a four-point braided wrist tether to prevent dropped-object hazards in orbit.
"Contractor Chu," Jiang Taixu spoke through the comms, his voice humming with calm, deadly focus. "The star-stone is drifting toward our docking envelope at eight hundred feet per second. Shall the Sword of Preparation strike its heart?"
Austin adjusted the vernier dials on his laser transit, sighting down the asteroid's rotational axis.
"Hold your horses, Jiang," Austin cautioned, shaking his head. "We’re not blasting it into rubble. Rubble is useless—it takes four times as much energy to collect, net, and bag loose gravel in zero gravity. What we need is precision dimension stone quarrying. I want that sixty-thousand-ton potato sliced into uniform rectangular billets: ten meters long, four meters wide, two meters thick. Exactly eighty tons per block, sized to fit the automated induction hopper on Dreadnought Four."
Jiang Taixu’s eyes widened behind his gold visor.
"To slice the celestial stone... into uniform building bricks?" Jiang Taixu whispered in awe. "Like a baker slicing loaves of bread for the morning market?"
"Exactly," Austin said, pulling a yellow grease pencil from his utility sleeve. "And watch your kerf width, Jiang! The last time you sliced an asteroid, your sword intent was three-eighths of an inch wide. You turned forty tons of high-grade nickel alloy into microscopic metal filings that drifted away into solar orbit! That’s pure material waste! Dial your sword vibration frequency up to thirty-six kilohertz, narrow your blade kerf to under zero point five millimeters, and keep the cut faces true to ninety degrees."
Jiang Taixu bowed with solemn, mortified shame, pressing his hand against his sword hilt. "Forgive my past clumsiness, Master Chu. I shall meditate upon the Microscopic Dao of Minimal Kerf! Zero filings of heaven’s ore shall be squandered!"
"Tie Kuang, launch the grapple tugs!" Austin commanded.
*KA-THUNK.*
From the bow of Dreadnought 03, four heavy pneumatic harpoon cannons fired.
Four massive titanium grappling hooks—trailing twelve-inch braided steel cables coated in vibration-dampening neoprene—shot through the vacuum, sinking their hardened wedge-tines thirty feet deep into the tumbling asteroid's crust.
*VWWWWWHHHHH—*
The dreadnought's heavy electric winches engaged, counter-torquing against the asteroid's spin. Within ninety seconds, the sixty-thousand-ton celestial boulder was brought to a dead, stabilized halt, held fifty feet off the warship’s starboard cargo bay.
Jiang Taixu stepped onto the exterior staging platform, hooked his twin shock-absorbing lanyards to the static lifeline, and leaped into the void.
Suspended weightless in the blackness of deep space, fifty miles above the curved sapphire ocean of the mortal world, the ancient Sword Patriarch closed his eyes.
He did not draw his physical steel blade.
He raised his right index and middle fingers, channeling his eighth-stage nascent soul energy into a needle-thin, high-frequency beam of concentrated sword intent.
*SKRRRRRRRRRRRRRRRRRRRRRRRRR!*
The translucent white blade of sword energy erupted from his fingertips, humming at thirty-six thousand cycles per second. The kerf width was less than zero point three millimeters—thinner than spider silk, vibrating so furiously that it sheared through the molecular bonds of the nickel-iron asteroid without throwing off stray sparks or excess heat.
With breathtaking, surgical grace, Jiang Taixu flew along the surface of the massive rock.
Vertical cut. Horizontal cut. Cross-cut.
The thirty-six-kilohertz blade sliced through forty feet of solid metal as if it were cold cheese. In less than three minutes, the craggy, ugly sixty-thousand-ton space rock was dismantled into seven hundred and fifty gleaming, perfectly rectangular silver-gray billets, each precisely ten meters long, four meters wide, and true to 0.02 millimeters on every edge.
Zero clouds of dust escaped. Every cut face was so mirror-smooth that it reflected the distant diamond stars without distortion.
Jiang Taixu touched down lightly on the catwalk, bowing deeply toward Austin. "Contractor Chu! Seven hundred and fifty billets carved! Kerf width maintained to zero point two eight millimeters! Zero waste observed!"
Austin inspected the first drifting block with his laser transit.
"Clean face. Right angles held. Good job, Jiang. That's apprentice-level masonry right there. Minimal kerf, maximum yield."
Jiang Taixu’s heart swelled with pride. He clasped his hands in gratitude, placing his sword back into its insulated sheath.
"Chonker! You’re up!" Austin called through the radio.
From the pressurized cargo bay of Dreadnought 04, a colossal orange shape lumbered into the zero-G environment.
Chonker, the three-thousand-pound Pangolin Excavation Specialist, was encased in a heavy-duty reinforced space suit that made him look like a massive, armored orange bumblebee. Fitted to all four of his clawed paws were high-power electromagnetic work pads, and clamped around his chest was a dual-nozzle compressed-nitrogen maneuvering pack.
With a joyful grunt that crackled over the intercom, Chonker fired a short burst from his thrusters (*pshh-pshh*), gliding across thirty feet of empty space toward the drifting rectangular billets.
His diamond-scale claws clamped onto the first eighty-ton block of space iron.
Using his powerful tail as an inertial counterweight, Chonker swung the eighty-ton billet through the air with effortless ease, guiding it directly into the open hopper chute of Dreadnought 04’s primary smelting bay.
*CLANK-THUD.*
Block by block, Chonker moved eighty tons of ore every forty seconds, loading forty thousand tons into the continuous smelting line before his morning snack break. When he finished, he floated over to the airlock and happily chewed on a foil packet of vacuum-packaged roasted sweet potatoes Austin had warmed on the furnace heat-exchanger.
Inside Dreadnought 04, the zero-gravity smelting process was already underway.
In an earthly foundry, molten metal is governed by gravity: heavy slag sinks, light impurities rise, and liquid steel pools at the bottom of the crucible. But in the microgravity of low Earth orbit, physics operated under entirely different rules.
Austin floated inside the control observation booth of the smelting bay, watching the molten metal through a heavy quartz porthole.
Inside the thirty-foot vacuum furnace chamber, surface tension reigned supreme.
Freed from gravitational overburden, forty tons of white-hot liquid nickel-iron had pulled itself into a perfect, shimmering spherical orb of molten metal twelve feet in diameter, hovering completely weightless in the center of the chamber like a miniature, glowing orange sun.
To keep the liquid orb from drifting into the water-cooled induction coils, Austin had installed an innovative three-axis electromagnetic acoustic levitation array.
Twelve magnetic quadrupole field horns surrounded the molten sphere, pulsing at eight hundred kilohertz. Invisible magnetic pressure waves cradled the forty-ton liquid ball in mid-air with millimeter precision, locking it dead-center in the vacuum with zero contact against the chamber walls.
"Observe the absence of crucible contamination," Austin explained to Tie Kuang, pointing through the quartz viewing glass. "Because the molten metal never touches a refractory brick, there is zero ceramic erosion, zero chemical pickup, and zero crucible wear. The purity is ninety-nine point nine nine percent. Furthermore, in zero gravity, nucleation occurs uniformly throughout the volume rather than along the walls. The crystalline grain structure during cooling is isotropic—equal strength in all directions."
He tapped the extrusion console.
"Now, we cast the tubular truss members."
Austin engaged the rotary spinning extraction nozzle.
*VZZZZZZZZZZT!*
A stream of liquid star-steel was drawn from the center of the hovering sphere, entering an automated continuous rotary casting mold. Spinning at two thousand RPM in the vacuum, the molten metal was forced against the outer walls of the cylindrical die by outward spinning force, cooling instantly against liquid-nitrogen chiller jackets.
Sliding out of the mold onto the zero-gravity assembly line came a forty-foot hollow structural tube—four inches in diameter, three-eighths of an inch wall thickness, and forged from seamless, bubble-free aerospace alloy.
Austin pulled his automatic center punch from his tool belt, testing the hardness of the cooling tube through the glove-box port.
*CLICK.*
`ROCKWELL HARDNESS: C-62.` `TENSILE STRENGTH: 240,000 PSI.` `STRUCTURAL DEFECT RATE: 0.000%.`
Austin nodded, setting his punch back into its pouch.
"That's one tube every twelve seconds," Austin calculated on his clipboard. "With five dreadnoughts running zero-G continuous casting, we’ll produce fifty miles of structural truss tubing every twenty-four hours."
He looked through the forward observation window toward the black expanse of orbital space.
Below them, the curved turquoise arc of the planet gleamed under the midday sun. And around the fleet, sixty thousand tons of raw asteroidal ore were being digested, refined, and forged into the gleaming skeleton of a planetary megastructure.
Austin wiped a trace of condensation from his helmet visor, clicking his ballpoint pen.
"Batch Alpha of the Dyson Swarm has its mirrors," Austin said to the crew. "Now... let's train our inquisitors how to weld them together."