Okay, so clearly he knows what he saw and pretending otherwise won't change that. It's fine, if worse comes to worst she can always run and get lost in a crowd.

"Glamours are...fairy magic or something like that, right? So no, it's not. It's a mutation." And because it's usually helpful to keep a potential aggressor off-balance, Raven shifts her shape to copy his. "Not a trick."

That's not just his face, it's his voice as well.