Elsa's really liking the peace, and she'd be happy to stay longer. As it is, though, it's getting dark, and late, and she's cold and needs to pee. The joys of pregnancy.
She's just about to suggest that maybe they head home when she feels Anna's handing, reaching over to take hers. Anna's still staring across the river when she speaks.
"Thank you," come the quiet words. She turns her head, and Elsa's struck breathless at the sudden intensity in her eyes.
Then, she can't breath for an entirely different reason.