Katsa cannot pretend she doesn't wish to return to the cavern, either. There's something unnatural about the pool—and not just because of its stillness nor its blackness, both of which, she thinks, aren't all so strange for a pool underground.

Not that she would know much about a pool underground. The only other one she knows was in a cave so dark she could not even see where the water met the rock.

Still, Katsa thinks it a shame that the elves and the kobolds fought before much could be made of what lies in the water's depths. "I'd thought to try swimming. Perhaps I could find something. A secret tunnel of some sort, maybe," she says to Strange. "What hypotheses do you mean?"