A frozen water barrier created a dangerous psychological illusion of solid ground.
An army saw a wide plain of white snow. Then, instincts sharpened on dry battlefields took precedence over basic hydrostatics.
Across the four-hundred-yard snowfield, one hundred shock troops of the Broken Horn surged forward in two tight, disciplined columns.
They were veteran border reavers, clad in heavy iron ringmail and hardened boiled leather. They carried eight-foot bundles of bound pine logs and frozen brush.
Behind them, sixty archers advanced in skirmish line. It fired scattered volleys of broadhead arrows at the granite castle walls.
The iron points clattered harmlessly against the thick stone merlons or chipped sparks from the water-setting concrete low roof walls.
Giles Croft stood at the center embrasure of the north curtain wall, his brass sound speaking trumpet resting on the coping stones.
Beside him, Captain Kenneth Drake held his iron-shod pacing rod, his knuckles white with tension.
“One hundred paces,” Kenneth whispered, watching the iron-clad vanguard sprint across the frozen flats. “Give the order, Lord Giles. Let thirty needle-point arrow arrows take the front files.”
“Not yet,” Giles replied calmly.
He lifted the brass speaking trumpet to his mouth, aiming the flared bell directly at the charging enemy lines.
“Broken Horn company, halt your advance,” Giles’s magnified voice boomed across the snow with cold and exact, echoing power. “You’re approaching an unrated load-bearing hazard. The ice beneath your boots is thermally compromised and can’t sustain dynamic infantry loads. Lay down your weapons, drop the timber fascines, and withdraw under terms of surrender.”
The charging reavers responded with deep-throated roars of laughter.
“Listen to the pencil-pusher,” the lead vanguard sergeant bellowed, brandishing a heavy spiked mace. “He thinks his talking horn can scare men who eat horseflesh! Forward, dogs! Take the ditch! Scalp the master builder.
Giles lowered the speaking horn with an unrushed, measured sigh.
“Due warning issued and recorded on the office log,” Giles said, glancing at Toby Karr, who noted the time on his slate. “Starting water-flow collapse.”
The front files of thirty reavers hit the outer bank of the moat at a dead run.
Their studded iron boots crunched onto the outer ice sheet.
For the first ten feet, the ice held firm.
It was four inches of solid, blue mountain ice, anchored to the frozen clay of the counterscarp.
The raiders gave a triumphant shout, convinced their warlord’s prediction had proven true.
“The ice holds,” the sergeant screamed, heaving his eight-hundred-pound timber fascine onto his shoulders with five other men. “Toss the logs. Cross to the wall!”
Twenty men carrying two massive timber bundles charged past the midway marker. They stepped directly into the inner ten-foot zone.
The physical reality of latent heat transfer occurred in a heartbeat.
Beneath the thin cosmetic layer of sifted powder snow and wicker mats lay barely five-eighths of an inch of porous, honeycombed ice floating over fifteen feet of thirty-eight-degree mountain water.
The combined weight of eighty men, forty-pound iron mail coats, steel shields, and two eight-hundred-pound pine fascines exerted a nearby flexural load of twelve tons across an unsupported span.
CRACK.
It wasn’t a dull snap. It was an ear-splitting, crystal-clear blast like a cannon shot.
A spiderweb of black fissures flashed along four hundred feet of the inner moat in a split second.
Then the entire inner ice sheet gave way.
SPLASH-CRUNCH.
A huge wall of white foam and churning emerald water erupted into the freezing air.
The heavy timber fascines plunged straight down into the deep ditch like iron weights.
With them went eighty heavily armored shock troops.
Screams of feral triumph turned instantly into shrieked gurgles of mortal terror as the raiders vanished beneath the roiling, freezing surface.
“Gods of the mountain!” Kenneth Drake gasped, leaning over the stone low roof wall. “The ice swallowed them whole.
The shock was immediate and total.
Water at thirty-eight degrees Fahrenheit didn’t merely wet a man. It seized the central nervous system in a painful vise of reflex hyperventilation.
Men wearing forty pounds of iron ringmail and heavy leather boots had zero floating lift.
They thrashed wildly in the churning slush, their fingers clawing at the slick, upright granite cut stone of the scarp wall, unable to find a single handhold on the smoothly dressed stone.
The heavy pine fascines, waterlogged and dense, sank to the gravel bottom, pinning several men beneath fifteen feet of mountain runoff.
“Archers, fire into the ditch!” Kenneth barked, raising his pacing rod. “Don’t let a single cutthroat crawl out!”
Thirty guard post bowmen drew their recurve bows, arrows notched and aimed down into the foaming pit.
“Belay that order, Kenneth,” Giles commanded sharply, stepping between Kenneth and the low roof wall. “Hold arrow fire.”
Kenneth stared at him in disbelief. “Lord Giles! They’re the enemy’s vanguard! If they scramble out—”
“They’re not scrambling out,” Giles said, his voice cold and analytical. “They’re incapacitated by severe full-body VR freezing sickness. Within two minutes, outer vasoconstriction destroys all motor grip. Shooting helpless men in an ice pit consumes ammunition with zero tactical return and violates deepest colonial rules of engagement.”
Giles pointed down to the shivering, thrashing men.
“Throw down the knotted hemp ropes and ladder hooks,” Giles directed Master Caleb. “Fish out the survivors. Disarm them on the snowbank and strip their wet armor. Take them right away to Sister Teresa’s warming cellar.”
Kenneth paused for a split second, his warrior instincts warring with the engineer’s total command.
Then he bowed his head slightly. “Ropes to the ditch! Haul them out and kick their daggers into the snow.
Caleb and ten quarrymen lowered heavy grappling hooks and knotted ropes over the low roof wall.
Thirty-four gasping, blue-lipped raiders clawed at the ropes, desperate to escape the liquid tomb.
They were hauled up onto the dry snowbank like half-frozen cod, weeping and shivering wildly, their teeth chattering with violent spasms as constables stripped them of their iron coats and dragged them through the back gate.
The leftover forty men of the vanguard had vanished into the depths or lay underwater beneath the heavy timber bundles.
Giles stood at the low roof wall. He looked down into the dark, churning water where floating wicker mats and broken wooden staves drifted in the slush.
A strange, heavy silence settled over the north wall. It was broken only by the whimpering of the half-drowned prisoners being bundled into blankets.
Giles picked up his pencil, but his hand paused over the clipboard.
On the snow below, a discarded iron helmet lay half-sunk in the slush, its painted wolf crest smeared with red mud.
Beside it, a woolen mitten drifted in the dark water.
These had not been digital polygons running pathfinding routines on a screen.
They had been living, breathing men with families. They were driven by hunger, greed, or terror of their warlord, now put out in sixty seconds of heat physics.
“Lord Giles?” Toby whispered beside him, his voice trembling slightly.
Giles closed his clipboard with a firm click, masking the quiet ache behind his eyes with his usual flat composure.
“Forty casualties confirmed,” Giles said quietly. “Thirty-four captured and remanded to medical steadying. Defensive strength kept.”
Across the frozen plain, three hundred yards away, the main host of the Broken Horn stood frozen in total, numbed horror.
They had watched their most fearsome, battle-hardened shock troops charge across what looked like solid ground, only to vanish into the bowels of the earth in the span of three heartbeats.
The chanting ceased.
The war drums faltered into silence.
Then, from the center of the halted army, an ear-splitting roar of berserk, unhinged fury shattered the stillness.
Warlord Bronn stood up in the stirrups of his black destrier, his face purple with rage, his beard flecked with spittle.
“Witchcraft,” Bronn bellowed, his burning greatsword slashing through the air, leaving trails of green potion-made fire. “Cowardly stone-digging sorcery.
He turned his blazing eyes toward the two huge thirty-five-foot siege towers lumbering behind his lines.
“Ox drivers, crack the whips,” Bronn roared, foaming at the mouth. “Push the towers. Roll Tower One to the central wall. Bring the ram to the raised stone road! Crush them. Roll them down.
The heavy ox whips cracked like pistol shots.
The sixteen-ton timber siege towers groaned on their eight ash axles. It rolled forward through the deep snow straight toward the three-hundred-yard marker.
Giles climbed the stone stairs to the north castle wall. There, Master Borin Bronze-Lung was already sighting through the brass side.
Toby Karr and two apprentice gunners were carefully sliding a fresh, greased six-foot armor-piercing sabot bolt into the polished bronze launch trough.
The two-piece pine sabot cup nested perfectly against the bowstring release pawl. It held the three-degree spiral copper fins clear of the guide walls.
“Target tracking data, Lord Giles,” Borin called out, his hand resting on the bronze winding crab. “Siege Tower Alpha has crossed the four-hundred-yard tree line. Speed is two miles an hour. Ox teams straining in the deep drifts.”
Giles adjusted the fine-scale screw on his brass sighting scope. He locked the crosshairs onto the front-left wheel hub of the massive wooden engine.
“solid strength math,” Giles said, demonstrating the shape to Toby. “A thirty-five-foot siege tower carries eighteen tons of load-bearing pine, green ox-hides, and forty armed assault troops in the upper crow’s nest. That elevates its balance point to twenty-two feet above the axles.”
Toby peered through the transit optics, his eyes wide.
“If the front wheel fails while the rear wheels keep rolling...” Toby murmured.
“The track width is only ten feet,” Giles explained. “The moment the left hub shears, the tipping moment exceeds the stabilizing righting lever arm by three hundred percent. Gravity does the demolition work for us free of moving ammunition cost.”
Kenneth Drake stepped to Giles’s side, his eyes narrowing as he sighted the huge timber castle advancing across the plain.
“Siege Tower Alpha is rolling, Lord Giles,” Kenneth said grimly. “Sixty archers in the upper fighting tops. If that machine reaches our narrow high walkway, their boarding ramp will bridge the low roof wall.”
Giles looked at the north castle wall. There, Master Borin was already aligning the heavy twisting force springald.
“It won’t reach our narrow high walkway,” Giles said calmly. “It won’t even cross Cairn Three. Giles checked the windage flags fluttering from the corner merlons of the north castle wall.
“Crosswind is five knots out of the northwest,” Giles told Borin, reading the silk pennant angle. “Apply half a turn of left bending on the compass bearing screw to compensate for drift across the open gully.”
Borin leaned over the bronze dial. His calloused thumb turned the knurled screw three clicks to the left with clean, steady care.
“Half a turn applied,” Borin confirmed. “The sights are centered right on the iron band of the front hub.”
Signal the north springald crew.”