[Billy looked from the little girl to the moogles. The moogles looked like they had gotten about as much from her explanation as he had.]

I guess you're new here, too. I don't think your mom is...here...yet. You are going to have to be brave until you find each other again.

[He did not want to be the one to break it to the child that her mom was on a different world, but he couldn't lie to her either. He had lost his mother as a kid, too, and no amount of sugar-coating it would help. At least the girl's mommy wasn't dead, presumably. Eventually, they would be reunited. He hoped.]