Fern stills her fingers in her hair when Sina touches her hand, staring back at her with very blue, very wide eyes for just a moment. But then Sina is already gathering her her things up and getting to her feet, and Fern watches her do so in dumb silence, too startled to speak at first.

Then she gets to her feet too and says earnestly, "Thank you," with a gesture to the diagrams that the rain is already beginning to wash away. She tries to smile again. "For sharing all of this with me. It means--" A pause while she tries to find the right words, can't, gives up, and just finishes with, "..just--thank you, is all."