Rex says to the boy " Your group is behind us. Watching me and what I do to you. You fell asleep here, after I caught up to you, I put my jacket on you and went to find you some water. I did actually find you some water to drink. The first time I saw you, you were some kind of creature, now your a boy, so yes, I would have to say you shifted. I'm Rex." Puts out a hand for him to shake. "By the way, when are your friends gonna come out? I won't hurt them, and I definitely won't hurt you, seeing as that you already had a hard day so far."