I didn't know until I met them. And to be honest, I didn't really believe their dad was one at first...

[Firo turns his head when he hears the newcomer. No kid he recognizes--and then he realizes with some excitement that that could mean he's jogged the shadow's memory. ...Apparently not enough, though, if one kid is still creepily faceless.

Firo reaches out to wave his arm in the shadow.]

Who's that? Hey, don't you see 'em?