Stiles calms, slightly, when his dad leaves the room and he looks towards the young boy when given his last name. It's something that he barely hears and when he does, he frowns slightly. "McCall?" So the kid was a relative of Scott's or his best friend's kid and calling him mommy..., that made no sense.

Deaton shuts the door and it startles Stiles slightly because he'd almost forgotten the emissary was there. "What year is it for you where you're from, Gabriel?"