The Great Keel Cleave

Alkaios wanted nothing more than to cut the engines, step off the vibrating deck plates, and drink a mug of spiced arrack in a tavern that was not actively plummeting toward a sea of corrosive sulfur. Instead, sixty paces above the wheelhouse, four million tons of iron-girded municipal canton groaned as the structural keel plate bowed another six inches toward the void.

Through the fogged glass, the forward spotlights of the Iron Sovereign pinned the Phronesis against the petrified trunk. Commander Thrasyllos had brought the heavy squadron cutter to a dead hover five hundred yards out. Her gun-port shutters clattered open in unison, twelve brass muzzle-mouths yawning black and hungry in the glare.

"Unlicensed rigger!" Thrasyllos's voice boomed through an acoustic hail-trumpet, echoing off the wet wood. "You are tampering with Imperial Timber Lease Forty-Four-B! Cut your winch lines and strike your colors, or I will drop your scrap-iron barge into the badlands!"

"He wants us to strike our colors," Berenikia called up through the speaking tube from the winch platform. Her voice carried the crisp cadence of an aristocrat who had just spent twenty minutes inhaling vaporized sap. "Skipper, do we possess colors?"

"We have a greasy yellow oil-rag tied to the aft drying line," Alkaios shouted down, his boots braced against the deck shudder. "Philotheos! How much mulch is left in the hopper?"

"One point eight tons!" the cartographer yelled from the boiler intake, coughing against a cloud of green sparks. "The feeder screw is grinding on bare sheet iron! You have seventy seconds of turbine pressure before the continuous loop loses rotational velocity and snaps back through our hull!"

"Then don't let it snap," Alkaios muttered.

He gripped the dual throttle levers, feeling the brutal vibration hum through his knuckles. The hundred-yard loop of six-inch steel towing cable was screaming at twelve thousand revolutions per minute, running through the Phronesis's secondary winch drums and looping entirely around the twelve-pace girth of the petrified taproot. Conductive blue sap smoked along the braided wire, glowing with a brilliant cyan luminescence as the Rotary Plasma Cleave perk turned the cable into a hurricane band-saw.

It was already through the outer bark, carving through four inches of rolled baronial brass plating. Sparks poured off the imperial serial tags like molten rain, sizzling into the cloud banks below.

A violent chime flashed across Alkaios's vision:

The bronze steam gauges on the console twitched violently. Green tendrils of photosynthetic light crawled up the copper capillary lines, and the scent of wild jasmine and boiling pine oil choked the wheelhouse air. Out on the deck, tiny silver moss buds were already erupting along the winch housing.

"The manifold is grounding back through the casing!" Berenikia yelled, her dueling foil singing as she deflected a spray of white-hot timber shards. "The clutch plates are beginning to fuse!"

Alkaios did not dump the load. Dumping the load meant losing the cable, snapping the canton's remaining keel struts, and letting Thrasyllos collect salvage rights over eighty thousand dead citizens.

He closed his eyes to the glaring spotlights and listened to the howl of the spinning cable.

The taproot had an iron core, but it was still timber. Every wood possessed an acoustic grain. Standard arborist protocol called for steady kinetic pressure, but steady pressure created friction, and friction generated the trapped photosynthetic surge that was currently trying to turn his tug into a floating greenhouse.

Alkaios reached past the governor latch and grabbed the brass adjustment wheel for Kinetic Winch Harmonics.

He backed the turbine pressure off by three notches, letting the loop lose linear speed, while pulsing the hydraulic tension cylinders in rapid, offset triplets. The cable screamed higher, its pitch shifting from a dull roar to a piercing soprano whine that set his teeth on edge.

He was not forcing the wire through the heartwood anymore. He was matching the vibration frequency of the petrified cell walls.

The resistance vanished. The screaming wire sliced through four paces of dense black iron-wood in two heartbeats, throwing an immense rooster-tail of glowing azure mulch into the gale. The bio-electrical back-surge funneled along the harmonic path of the wire and discharged straight into the copper grounding braid Berenikia had pinned to the ventral spar, blasting harmlessly into the lower clouds as a sheet of green lightning.

Aboard the Iron Sovereign, Thrasyllos must have seen the saw sink straight to the trunk's center.

"Fire!" the customs commander roared across the divide. "Rake their balloon! Sever the tow lines!"

The cutter's broadside flashed orange. Six solid-shot kinetic cannonballs shrieked through the mist.

Three struck the lower hull of Canton Seven, gouging craters of stone that rained into the void. One took off the Phronesis's starboard searchlight pole in a shower of twisted tin.

The last two never arrived.

Before the gunners could reload, the core of the rogue taproot reached its critical breaking strain.

A sound like an exploding mountain split the stratosphere. The twelve-pace trunk sheared in two with a catastrophic crack that rattled the teeth in Alkaios's skull.

Relieved of four million tons of downward ballast, the municipal keel of Canton Seven rebounded upward like a released longbow. The iron crossbeams shrieked as thirty square leagues of suspended rock surged three hundred yards straight into the clear upper air, dragging the mooring slips and gas refineries cleanly out of the sulfur mist.

Directly beneath them, forty thousand cords of severed petrified iron-wood—three hundred meters of prime, ancient canopy timber—tipped into the abyss.

The falling titan clipped the bow of the Iron Sovereign on its descent. The sheer downward drag caught her forward stabilization fins, spinning the warship two full rotations on her axis, snapping her main radar spar, and sending her tumbling twelve hundred yards down into the lower squall before her emergency ballast vents could fire.

Alkaios slammed the winch brake home. The severed cable whipped through the air, clattering across the deck with the spent clink of cooling brass.

Silence fell over the underside of the city, broken only by the steady, oily chugging of the Phronesis's exhausted boiler.

Then the System interface erupted across Alkaios's vision in blinding gold filigree:

Alkaios let out a long breath and slumped over the binnacle. His knuckles were raw, and his wool coat smelled like burnt sap and battery acid.

The wheelhouse hatch banged open. Philotheos scrambled in, clutching an armful of smoking, petrified wood chips like sacred relics. His goggles were askew, his face covered in soot.

"Do you realize what we just released?" the cartographer squeaked. "Forty thousand cords of seasoned iron-bark! Zenobios's scrap docks are already swamped! The entire timber exchange on High Canton just collapsed! The Zephyrian syndicate lost eighteen million sovereigns in three seconds!"

Behind him, Berenikia stepped onto the bridge ladder. She looked at her grease-stained gloves, then at the bright blue sky now visible beneath the clean, unburdened keel of the city. A small, wicked line curved at the corner of her mouth.

"Commander Thrasyllos survived the roll," she said smoothly, leaning against the doorframe. "I observed his vessel stabilizing in the lower thermal band. He is currently transmitting on all imperial naval bands."

As if on cue, the tug's brass receiver horn began to spit static, followed by the automated chime of the sector's public dispatch:

"Attention all vessels. By emergency decree of the High Admiralty of Zephyria, a Class-One Subversion Warrant has been issued for the aerostat Phronesis and its master, registered as Alkaios of Canton Seven. Bounty set at fifty thousand gold sovereigns, dead or alive, for catastrophic timber market sabotage."

Alkaios reached over, turned the volume knob until the horn clicked silent, and reached for his tin mug on the chart table. The arrack inside was stone cold and coated in a thin film of floating sawdust.

He took a slow sip anyway.

"Pack the gear," Alkaios said, wiping his mouth with the back of his sleeve. "We're going to need a bigger saw."