The descent capsule struck the sea-floor of the Kermadec Trench with a dull, ringing impact that shook through Arthur’s boots.
The depth gauge steadied at negative twenty-two thousand four hundred meters. Here, the ocean floor was not sand or silt. It was a fractured stone floor of polished dark rock, snapped flat by millions of years of earth-shaking grind and slick with a greasy layer of stone settled mud.
Through the forward quartz port, Arthur could see the edge of the deep pit.
Ten meters from the landing skid, the bedrock gave way entirely. A jagged underground canyon plunged straight down into the Earth’s lithosphere. A black, bottomless deep gap that swallowed the capsule’s halogen beams like grease on a hot griddle. From the depths of that deep gap rose a steady, rhythmic thrumming that made the air inside the chamber feel heavy and thick.
“Depressurizing outer airlock,” Arthur said, his hand resting on the manual high-pressure lever.
The hiss of hyper-high-pressure cold air hissed through the outside equalizers. Arthur checked the seals of his diving armor. Unlike standard commercial sky diving suits, which were rigid metal sarcophagi that restricted movement, Arthur wore a custom three-ply composite suit engineered from Titus’s shed scute fragments and Echo’s cryo-treated mucus. It was flexible, thin enough to permit delicate microsurgery, yet tough enough to withstand local gravity shearing.
