Elsa? Where had he heard that name before? Henry knew it had been recently. "Like Elsa from Arendelle?" he asked and then mentally smacked himself. It would so probably be a bad idea to tell her about the whole fictional thing if that was who she was. It explained the whole blizzard thing though!
But he also knew that he should listen to her when she said not to come closer. She might have been wearing the new dress that she got during the really popular song but that didn't mean she had any control over her powers. That hadn't happened until the end of the movie.
"You're really far from home. And you kinda can't go back right now. I think one of the grown ups is supposed to explain it all. But do you want some hot cocoa?" Except she didn't get cold. It was the whole ice powers thing.