The following account was recorded in the agent's log during your transmission: Uh, this huge stone bell... thing's just sitting on the ocean floor, like, no visible supports. Water pressure's crushing down, air's thick with... some kinda charged particles, making my skin itch. Schools of bioluminescent fish, maybe, are darting through the darkness outside, but it's somehow still daylight in here - light from the surface, like, 300 meters up or something's filtering in just fine, illuminating ancient, cuneiform-style inscriptions covering the entire interior surface. They're... slowly rewriting themselves as I watch.