The following account was recorded in the agent's log during your transmission: Gigantic, twisting metal pipes rise from a series of geothermal vents on the seafloor, spewing superheated steam and minerals into the water... the air's, well, it's not really air, but the water pressure's crushing and it's pitch black except for the faint glow of these huge, iridescent shellfish clustering on the pipes. The smell of saltwater and metal's overwhelming. Like, a massive, ancient-looking key is somehow lodged in the center of the largest vent, and it's slowly turning, like, somehow controlling the flow of minerals and heat from the Earth's core.