To be honest, he has a hard time concentrating on the water, at first. It's her, and then it's her radiant expression of delight. It reminds him of something he hasn't felt in a long time. It puts him at ease in the way a spymaster shouldn't be.

"Once or twice. Now, since you're less dense than humans from Earth, you'll probably float easier - remember the buoyancy." Put it in scientific terms, since that's what she knows the best.

He shifts up and moves next to her. "The first thing a lot of people learn is how to float," he says. "Try lying on your back, on the surface of the water."