The following account was recorded in the agent's log during your transmission: Waterlogged frescoes of various medieval alchemical processes cover the vaulted ceiling of a submerged, Byzantine-style cathedral. Umm, the air's kinda stale, with a whiff of seaweed, and it's really humid, but somehow, a faint scent of burning frankincense still clings to everything. Schools of bioluminescent fish swim through the nave, weaving between the ornate, golden pillars that support the dome, as sunlight filtering down through the waves casts a kaleidoscope of colors on the stone floor. A chunk of the ceiling is somehow simultaneously on fire and underwater, flames licking at the stone.