The following account was recorded in the agent's log during your transmission: Water's gushing from a crack in the ceiling of what looks like a vast, abandoned astronaut training pool, its massive, domed structure reflecting the pale blue light of luminescent algae coating the inner walls. The air's pretty thick with the scent of chlorine and... like, something earthy, and it's totally still except for this low, thrumming noise that seems to be coming from the levitating asteroid suspended at the pool's center. That weird, pungent smell of burning sulfur is seeping from a small, sealed door on the far side, somehow marked with cryptic warnings about "Zhrakian Event Horizons".