There's a lightness in X's face as the skiff swoops down. It isn't a smile as most would recognize it, but still.

And once they're nearer the lake again --

"Some universes exist side-by-side. Or within each other. We can cross to one, between atoms. And then come out again."

She shrugs, one-shouldered and quick.

"I do not know Eternity. But we do. It is what we protect."

And, you know. Who.