The 4,000-Meter Door: A Saturation Diver Uncovers His Cult-Leader Father's Abyssal Vault
Brody’s voice, relayed through the hydrophone, cut through the tension in the dive bell. “Arthur! The equalization valve! Blow it!”
I knew exactly what that meant. The valve was on the exterior of the vault’s massive oak door frame. To reach it, I would have to exit the protected pressure of my dive bell.
Mandatory decompression for a saturation diver after days at 4,000 meters was 72 hours. To bypass it meant immediate, catastrophic consequences. Explosive decompression.
Nitrogen, supersaturated in my blood and tissues, would expand violently. It would tear through my joints, rupture capillaries, destroy my nervous system. Permanent damage. A slow, agonizing death, or worse.
My mind flashed to Caleb’s terrified message, to Lily’s small, innocent face. Jeremiah’s charges were still counting down, 60 minutes ticking to oblivion.
There was no other way.
I locked my rebreather in place, ensuring the mask was sealed tight. With a grim resolve, I threw the manual lever, releasing the lower hatch.
A torrent of freezing water, under unimaginable pressure, erupted into the bell. The internal temperature plummeted. My body screamed in protest as the cold began to penetrate my dry suit.
I kicked out, propelled by the violent rush of water, my body already feeling the first sickening twinges of barotrauma. Every muscle fiber seized.
Pain, sharp and searing, shot through my joints as the nitrogen began its destructive work. My vision blurred.
But I pushed through it, swimming towards the oak door frame, my target the small, red-painted equalization lever.
My gloved hand closed around it, cold and metallic. With a grunt, I pulled it hard.
The external lock mechanism hissed, then groaned. Thousands of liters of sea water surged into the vault’s outer pressure chamber, creating a powerful pressure differential.
A blinding flash erupted from within the vault as the sudden surge short-circuited the explosive firing board, silencing the ticking timer.
With a mighty groan, the heavy, iron-riveted medieval oak door, Jeremiah’s “Gate of Sins,” shuddered. Then, slowly, irrevocably, it swung inwards, revealing the dark opening of the hyperbaric bunker.
The path was clear for rescue. But as the door opened, a white-hot agony tore through my spine. My legs went numb, useless in the crushing dark.
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