" Doctor: Nyssa, we can't get you out of there just yet. I'm sorry.
Nyssa: I know.
Doctor: The TARDIS has gone missing. I'm sorry, I have to concentrate-
Nyssa: I know, Doctor. You don't have to keep saying you're sorry.
Doctor: We'll come for you. When all of this is over we'll follow the comet and get you back.
Nyssa: You once said much the same thing to somebody else. "

― Eddie Robson