As she swam, she'd feel something brushing against her leg, though it was too dark to see clearly. Still, an unsettling sensation, to say the least...<br/><br/>The light illuminated the cavern, a large, dome-shaped room. About twenty feet high, she'd broken through near the apex of the dome. It looked to be about fifty feet across, and roughly circular. Similar outcroppings like the one she was on could be seen around the room, but none climbed high enough to get out. She couldn't see any obvious entrances or exits; apparently, they're all underwater.<br/><br/>Her light also caught glimmers of movement in the water; some kind of fish, perhaps, moving away from the sudden light?