The high-pitched wail intensified, vibrating through the soles of Zoya’s slippers. It was not merely an alarm; the granite foundation groaned beneath the ballroom floor as plaster drifted down from the ceiling moulding like dry flour. Lazar seized her forearm, his features hard. “The fortress has an escape shaft,” he barked over the rising din. “It links to the lower security grid. Move.” Tsar, sensing the sudden, grave shift, positioned himself squarely in front of Zoya, a growl rumbling deep in his chest. His massive head swiveled towards the nearest exit, already herding her. Guests stumbled over overturned chairs, screaming as fine powder showered down on their dinner coats. Lazar didn't wait for a reply. He swept Zoya into his arms, a blur of bespoke fabric and scarred muscle. The diamond necklace he'd given her, now clutched in her hand, caught the dimming light, a fleeting spark against the encroaching shadow. He hauled her through the stampede toward a reinforced hatch disguised beneath heavy velvet drapery, Tsar clearing a wake with bare fangs. The passage beyond was stark concrete and steel, plunging downwards. A low-slung transport hummed to life as they approached. Lazar shoved Zoya into the passenger bucket, cinching her harness before dropping into the pilot seat. Tsar bounded into the cargo well, planting his broad snout against the console. “Five minutes,” Lazar muttered, watching digits tick down from 00:04:58 to 00:04:57 on the dash glow. The chassis shuddered as it launched down the service tube, rock teeth gnashing against the outer hull. “Vilem planted a detonator in the geothermal core. If the housing ruptures, the entire ridge shears off.” Zoya drew a pocket terminal from her petticoats. Her fingers, usually sluggish and dismissive, punched coordinates across the glass. Strings of blue characters unfurled through the Kavali network architecture. “External relays are dead,” she murmured. “He cut the perimeter line to bottleneck the blast inward. The local bus is barely holding.” Her breath fogged the cold windshield. “I need to route past his lock. The avalanche sequence—it vents pressure outward and drops the north cornice on the Moravec trucks.” Lazar cut the wheel sharply around a bend. “You know those routines?” “I memorized every ledger Vilem hid in the manor library,” she replied without looking up. “Including the containment valves. But the primary breakers are down in the bedrock shafts. They need manual intervention.” “Elias,” Lazar rasped into the dash transmitter. “Elias, answer. The core is burning down. The venting sequence is our only path. Get down to Gamma-Seven. The primary lines are shredded.” Static crackled. A strained voice, barely audible, filtered through. *“I’m already there, sir. Detected the core fluctuations. There’s a lockout… a blast door blocking access. And… I hear them. Moravec patrols. They’re converging on this level.”* Zoya leaned forward, striking keys with steady rhythm. “He needs the bulkhead bypass. The junction channels are locked behind frost baffles, Elias. Can you reach the junction box?” She knew Elias's secure emergency exit from that level had to be through the same blast door, now locked. If he went back for the cables, he’d be trapped. Silence for a long, agonizing moment. Then, Elias’s voice, clear despite the growing chaos. *“My post is here, Madam. Tell me what to do.”* “There is an access box beside the central riser,” Zoya said, tone flat and dry. “I’m sending my clearance hash to your receiver. Open the panel, pull the optical bundle, and cross the blue lead over the copper braid. You must short the governor switch directly.” “Done,” Elias replied, just as her screen flashed green. *“Bulkhead unlatched. Moving to the riser.”* The transport skidded across slick concrete into the fortress's cavernous fleet bay. The readout on the dash flashed *00:00:45*. On her screen, text scrambled from below: *“Line one spliced... line two frosted solid...”* “Hurry, Elias,” Zoya said softly, watching the signal stutter. “The circuit requires three bridges to trip the vent.” Lazar hauled Tsar from the cargo well. The dog pressed against Zoya’s knees, low growls vibrating in his throat as ceiling mortar pelted the roof. *“Line three bridged! Signal locked!”* Elias rasped through static. *“The loop is closing!”* Zoya tapped the central icon on the screen. “Execute purge.” The floor plates groaned, then settled into a deep, rhythmic hum. Far above, muffled thuds shook the cliff face as shaped charges cracked the upper snowbanks. A gray roar filtered through the ventilation shafts as thousands of tons of alpine powder sheared loose, sweeping down the switchbacks to swallow the Moravec armored trucks parked along the valley road. The timer cleared from the console, replaced by a flat green prompt. The subsonic siren cut out entirely. The halls settled into chilled silence, dust hanging thick in the air, leaving the walls intact and still. Zoya slumped against the headrest, her habitual fatigue settling back over her limbs like wet wool. She turned toward Lazar. He stood gripping the open car door, head lowered. A wet, tearing cough broke from his throat. Tsar whined, nudging the man's hip as Lazar swayed. “Lazar?” Zoya sat upright. He clawed at the front of his shirt, tearing mother-of-pearl buttons free. Another spasm bent him double. His knees struck the floor, and between his parted lips, a ribbon of black, viscous fluid poured out across the white stone.

Avalanche Protocol