The hot-water vent field at minus ten thousand five hundred meters was a drowned city of black stone and boiling stone smoke.
Huge sulfide chimneys, standing three hundred feet tall like gothic spires, vomited clouds of 380-degree stone slurry into the pitch-black deep pit. The white-hot water, soaked with copper, zinc, and iron sulfides, didn’t boil—under more than one mountain-crushing pressure of deep water pressure, water remained liquid even past the melting point of lead. Where the boiling black plumes collided with the two-degree surrounding ocean, towering curtains of shimmering blue chemiluminescence flickered in the gloom, casting jagged, dancing shadows across the trench floor.
The hydro-heat vents of the Mariana Deep pit didn’t merely produce heat. They generated an intense, nearby bio-chemical ecosystem that defied every terrestrial law of biology. Titus cruised past a towering spire of solid chalcopyrite. Then, Arthur watched through the quartz viewport as clouds of blind, semi-clear vent shrimp swarmed across mats of sulfur-oxidizing bacteria. In the absence of sunlight, the entire food web ran on earth-heat chemical synthesis and raw, raw earth aether.
Inside the command cabin, Grimm’s nose twitched nonstop. The sulfur fumes, while scrubbed to ninety-nine percent purity by Titus’s internal air-flow organs, still carried a pungent, brimstone tang that offended the dire-wolf’s sensitive smell nerves. Grimm gave three rapid sneezes that shook his massive head, then buried his snout firmly between Arthur’s ankles. That let out a muffled groan.
