MISSY: It's a confession dial.

CLARA: A what?

MISSY: In your terms, a will. The Last Will and Testament of the Time Lord known as the Doctor, to be delivered, according to ancient tradition, to his closest friend, on the eve of his final day.

(Clara reaches for it, and gets an electric shock.)

MISSY: Ah, ah! What are you doing?

CLARA: You said. I thought.

MISSY: No, no, no, no, no. It was delivered to me.

CLARA: You?

MISSY: Well of course it was sent to me. What have you got to do with it? I'm his friend. You're just

CLARA: I'm just what?

MISSY: See that couple over there?

(A man and a woman walk through with their dog.)

MISSY: You're the puppy.