The following account was recorded in the agent's log during your transmission: Grey-blue water slams against the rough-hewn stone sides of a massive, partially submerged underwater cistern, sunlight piercing the ripples above. Umm... I think my vision's blurring – it feels like my brain's being squeezed to death... Musty, damp air clings to everything, thick with the smell of damp earth. For some reason, a procession of tiny, bioluminescent, iridescent eels is crawling in tandem along the walls, apparently retracing a set of ancient Sumerian cuneiform glyphs etched into the stone, like... somehow maintaining the precarious structural integrity of this ancient place.