"Yeah. I was in LA before I came here," Sarah told him with a shrug. "But this is possible. It's not a dream. You came here by magic, basically."
She kind of figured he came from a place where magic and aliens and such didn't exist. She thought maybe she'd ease him into it, but instead she decided to just say it outright. Magic did exist. "And sorry, but you're trapped here. You can't go back to New York."