It's her fingers glowing that gets Jacob's attention, and he watches, frowning, as she tugs at his magic. His expression turns to something torn between awe and horror, then, as she redirects it into something that is, as far as he can tell, not an illusion, not like his little trick was. He's still staring, when she turns to face him, and he shakes his head faintly before he asks, "What did you do?"

Maybe he'll be cancelling rehearsal, tonight, in favor of stopping by the Archive, because just -- what? What just happened there?