[ erik shows particular interest in pietro, and that makes him wonder a little. maybe that's who he'd lost. maybe he resembles someone he's met. maybe the image of him is just very striking. he wants to ask, but then the older man is speaking up again, and billy's eyes drop to his grandfather's face. ]

Oh. [ the name probably doesn't line up with what what he's displayed thus far, and if you haven't encountered it before, it makes sense to ask. ] It's.. [ he trails off, and a twitch of his fingers makes his family wink back out again. ] It means I can alter existence. [ that's probably the simplest explanation, isn't it? it doesn't encompass it any more than saying he's a mutant encompasses what he and his twin and his mother and uncle actually are, but it's the best equivalent he has right now. ] On a small scale, like changing the color of your shirt, or on a.. galactic scale. Technically.

[ don't get any ideas, grandfather. ]

Mom and I are a little different, and she approaches her powers a little differently, but we both have to be careful not to literally speak things into existence. [ it's cause massive problems for both of them.

then, because it's still nagging at him: ] .. Did you recognize Uncle Pietro?