Your-- [Oh. Now that he looks properly, he can see the resemblance immediately. Yes, of course, that's his dad. And when he looks at him, he feels a strange pull-- even though it's someone he doesn't really know, but it sets off alarm bells for him that he could be feeling some magic. He can only assume it's happening for Keith, too, but worse.]
[He doesn't want to look away from the... ghost? But his concern for Keith wins out, turning to look at him even though Keith's still not able to really look away himself.]
I don't know, baby. But it's okay. You're okay. [He has no idea what's going on, but he's not about to let him wander off into danger. Whatever this is, it doesn't feel right. He squeezes his hand again, more to ground him than anything else. He isn't about to let go. He doesn't want to jump to conclusions, either, but he's entirely Not Liking this situation-- all his instincts are telling him to get out of here, but he can't just go and yank Keith away from his dad, if it's really his dad.]