Good guesses. But not quite. [He sits on his bed, looking across the room at her. Then he checks the cover they've got over the mirror. Just to be safe, he presses play on the cd player they've got, sending the upbeat sound of BABBA throughout the room.

He doesn't trust mirror Mabel not to be listening in now. Or someone worse.]

Your Mirror. She wrote a message to me in code. [A beat.] Atbash, in case you were wondering, which is kind of appropriate for a mirror.