The following account was recorded in the agent's log during your transmission: Water's cascading down a series of iridescent crystal formations in a massive, geodesic cavern, somehow filling a lake that seems to be on the ceiling. Uh, the air's pretty thin in here, with a metallic tang, and the only sound is this low, resonant hum that's making my teeth vibrate. Sunlight's filtering through the crystal, casting a kaleidoscope of colors on the cavern walls, and it feels like mid-morning, judging by the angle of the sunbeams. The lake on the ceiling is supporting a fleet of perfectly intact, upside-down sailboats, their sails billowing in a wind that isn't there.