Chapter 31 - The Trench Awakes
A sudden, violent vibration shuddered through the hull of the *Avalon*, throwing Miller and me against the bulkhead.
Down in the black depths of Lake Tahoe, sixteen hundred feet beneath our feet, the water began to boil with massive clouds of displaced methane and silt. The ship's depth sounder shrieked an alarm as the lake floor beneath us registered an impossible seismic upheaval.
"What did he activate?" I demanded, lunging toward the sonar terminal.
The display was glowing with a massive, emerging acoustic contact. It wasn't a civilian drone, and it wasn't a commercial sub.
Rising from the ancient sediment of the central trench—where it had lain buried under hundreds of feet of silt for more than forty years—was a massive, pressurized steel structure. A submerged Cold War naval storage vault, built during the 1970s and forgotten by modern fleet registries, was disengaging its seismic anchors.
The comms radio on the bridge crackled through an automated, synthetic broadcast routing directly from the emerging structure:
*EMERGENCY DEFENSE INITIATIVE 1974 DEPLOYED.*
*SUBSURFACE PURGE CYCLE INITIATED.*
*TIME TO DETONATION: TWELVE MINUTES.*
*ALL SURFACE CRAFT MUST EVACUATE THE LAKE BASIN IMMEDIATELY.*
On the digital chart, the red blast radius expanded outward from the center of the lake, engulfing every shoreline, every dock, and the entire cliffside foundation of Whispering Pines.
Miller looked at me, his eyes wide in the strobing red emergency lights of the bridge. "Commander... we don't have enough time to airlift out of the basin. The blast wave will cause a freshwater tsunami across the entire shoreline."
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I looked out through the reinforced glass of the bridge toward the distant, darkened silhouette of my home on the ridge.
"Get the helicopters in the air with the prisoners," I ordered, grabbing the dive mask and rebreather from the deck. "I'm going down there."
