Molly nods, because all of that makes perfect sense for her. If Jack Frost is real, why wouldn't he be friends with the Wind? And why wouldn't the Wind be something you could befriend?

"Okay. Don't take too long, though, okay?" She's not scared, but okay maybe she doesn't want to be alone with a bunch of strangers for too long. Hey, in the lack of familiar faces, he seems safe enough to trust. If he's friends with Santa and the Easter Bunny, he must be a good guy.