Shattered Proof

The iron muzzle did not waver. The lead stalker stood thirty paces out on the drowned floor of the basilica, boots braced in six inches of brackish water, his bronze wolf mask gleaming under the sulfur flare of his shoulder lamp. Behind him, three more hunters fanned out along the colonnade, their heavy pneumatic crossbows cocked to the third notch.

"Surrender the mortal and the cylinder," the lead stalker repeated. The acoustic diaphragms in his mask ground out the words in a flat, metallic rasp. "Or we crack the lime canisters."

Kyranthos did not answer with a speech. He shifted his weight onto the balls of his boots, bringing his twin daggers up in a tight, reversed grip. The fresh cut across his left palm—the twin to the slice burning against my own skin—left a faint smear of crimson along the polished steel crossguards.

"Evoia," he murmured, his voice pitched so low the water barely carried the vibration. "When the first bolt leaves the groove, get behind the second column. Do not run for the chute until I clear the line."

"And if they drop the lime?" I whispered back, my hand already digging into my canvas field kit. My fingers found the knurled grip of my pneumatic chisel and the cold, slender shaft of my silver tuning fork. "We have five seconds before the air in this vault turns to caustic acid."

"Then do not breathe the spray," Kyranthos said.

The lead stalker tripped his trigger.

A steel harpoon hissed through the dark, trailing a braided copper tether that sparked against the damp air. Kyranthos did not try to catch the shaft. He dropped beneath the arc, his dark coat flaring as he drove forward through the spray. The bolt slammed into the porphyry pillar three inches from my shoulder, biting deep into the imperial mortar with a dry, splintering crack.

"Fire!" the stalker bellowed.

Two pressurized glass jars tumbled through the air from the flanking stalkers, arcing high toward the flooded center of the nave. They hit the water and shattered on the submerged tiles.

A violent, boiling hiss tore through the cavern. Great geysers of blinding white steam erupted from the floor as the raw quick-lime hit the brackish flood, turning the stagnant water into a churning cauldron of boiling lye and caustic smoke. The heat struck my face like a furnace blast. The stinging reek of burnt alkaline filled the vault, clawing at my nostrils and searing the back of my throat.

I clamped my mouth shut, yanked the dead-bronze diving mantle tighter over my bruised ribs, and threw myself behind the base of the nearest fluted column.

Through the billows of white vapor, Kyranthos moved like a predatory shadow. His boots barely stirred the churning froth as he closed the distance. The stalker on the left dropped his spent crossbow and drew a hooked boarding cutlass, swinging hard for Kyranthos's throat. Kyranthos slipped inside the guard, parried the blade with his left dagger, and drove his right stiletto straight up beneath the chin of the bronze wolf mask.

The stalker stiffened, a choked rattle catching in his throat, before collapsing face-first into the boiling shallows.

"One," Kyranthos muttered, wrenching his blade free with a wet twist.

The lead stalker swore, swinging the square iron muzzle of his repeating mechanism toward Kyranthos's flank. A volley of three heavy quarrels whipped through the smoke in rapid succession. Kyranthos threw himself sideways against an altar base, but the last bolt grazed his leather coat, slicing a clean furrow across his ribs. He grunted, stumbling as his boots caught an uneven flagstone beneath the lye.

I peered around the curve of the porphyry pillar, my pulse hammering in my ears. The caustic steam was spreading fast, rising toward the vaulted ceiling where it met the cold condensation and began dripping down in scalding, milky beads.

Kyranthos was bleeding from the side, and his head jerked awkwardly to the right. His left ear, still weeping clear fluid from the acoustic concussion I had dealt him in the coppersmiths' alley hours ago, was failing him in the echoing din. He could not hear the approach of the third stalker.

The third hunter was not on the floor. He had scrambled up the collapsed masonry of the western gallery, perching forty feet above the nave on an overhanging corbel. He rested the heavy stock of a siege-grade arbalest against a decorative marble gargoyle, aiming straight down into the blind spot behind Kyranthos's damaged ear.

If that bolt dropped from that angle, it would punch through Kyranthos's shoulder and pin him to the floor.

"Kyranthos!" I yelled, but the roar of boiling lime and the acoustic slap of the vaulted ceiling drowned my voice into static.

I had no throwing knives. I had no crossbow. All I had was five pounds of tool steel, a pneumatic piston, and sixty tons of fractured imperial stone singing its ancient misery into my bones.

I pressed my bare, cut palm against the pillar beside me.

The psychic resonance of the Archon Basilica flooded into my skin in a sharp, electric rush. Because of the blood oath we had sworn over the anchor stone minutes ago, my senses did not just register the historical murder of Orestes Vane; they picked up the live structural stress running through every arch and corbel in the chamber.

The western gallery was rotten. Eighty years of submerged damp had eaten the lime binder out of the upper joints. The entire upper balcony rested on a single load-bearing cantilever strut—a massive wedge of violet porphyry that sat three feet above my head, vibrating under forty thousand pounds of downward shear.

It was an acoustic shear line. A tuned fault.

"Hold on to something," I muttered to nobody.

I clamped my binaural acoustic probe between my teeth, drew my silver tuning fork from my vest, and jammed its tapered prongs directly into the hairline fissure at the base of the porphyry strut. With my left hand, I hauled up the pneumatic chisel, jammed its hardened tungsten bit against the stem of the fork, and cranked the brass regulator valve to maximum pressure.

The air tank hissed. The internal piston kicked against my wrist with the rhythm of a trip-hammer.

Clack-clack-clack-clack!

The pneumatic strikes drove the silver fork deep into the stone, exciting the natural frequency of the imperial porphyry. A high, crystalline hum rose from the wall, cutting cleanly through the roar of the steam and the clang of steel. The stone began to shudder.

The vibration reached the high gallery. The sniper glanced down, his bronze wolf mask turning toward my pillar. He shifted his aim, swinging the siege arbalest toward me.

I did not let up on the trigger. I leaned my full body weight into the chisel, driving my bleeding right palm hard against the vibrating steel.

"Break," I snarled.

The harmonic reached its critical crest. The structural node in the porphyry strut shattered along its quartz veins with the sound of a cannon shot.

A concussive shockwave ripped outward from the fissure. The acoustic backlash blew the chisel's brass exhaust valve clean off, peppering my bronze diving mantle with hot copper flecks, but the wave did not stop there. It traveled straight up the vertical grain of the gallery wall, multiplying in force as it struck the rotten lime joints.

Forty feet above us, the entire western corbel gave way in a blinding cascade of dust and fractured marble.

The sniper shrieked as the floor dropped out beneath his boots. The gargoyle sheared off, carrying twenty tons of vaulted stone down with it. The sniper tumbled through the empty air, his heavy arbalest firing harmlessly into the ceiling, before he and the entire gallery smashed down upon the flooded nave.

The impact sent a six-foot tidal wave of scalding, white-frothed water crashing across the floor, dousing the remaining lime flares and extinguishing the sulfur lamps in a hiss of black soot.

Kyranthos rode the surge, planting his boots against the base of a fallen sarcophagus to keep his footing. As the wave receded, he turned his blade toward the remaining stalker on the floor.

The fourth hunter was staggering, his bronze wolf mask cracked down the center from the acoustic blast, blood pouring from beneath the metal rim where the harmonic shockwave had ruptured his eardrums. He dropped his cutlass, clutching his head with both hands as he screamed in agony.

Kyranthos closed the two strides between them without a sound. A single thrust of his left dagger through the stalker's gorget silenced the screaming for good.

The chamber fell into a violent, dripping hush, broken only by the bubbling of the dying lime pools and the ominous groaning of the fractured ceiling arches above.

"That was your translation work?" Kyranthos asked. He stood amid the drifting steam, chest heaving, his dark coat soaked in boiling mud and crimson streaks. He looked up at the gaping hole where the western gallery had stood five seconds earlier.

"I told you the stone remembers how it was built," I said, wiping a mixture of sweat and lime grit from my eyes with the back of my sleeve. My right hand was numb from the pneumatic vibration, the cut on my palm throbbing with a dull, rhythmic burn. "It also remembers where it wants to fall."

"Remind me never to insult your masonry," he said. He stepped over the carcass of the second stalker, his boots splashing through the gray sludge, and stopped three feet from me. He extended a hand to haul me up from the knee-deep water.

Our palms met. The contact sent a sharp, electric jolt through the matching cuts on our skin—a sudden, tight flare of shared awareness that made my breath catch in my throat. For a fraction of a second, I could feel the cold iron focus behind his ribs, and he could feel the raw exhaustion dragging at my knees.

Neither of us let go immediately.

"The lead stalker," I said, breaking the gaze and nodding toward the rubble pile near the southern archway. "Where is he?"

Kyranthos turned sharply.