The Master: [Sees Jo deep in thought] Penny for them, Miss Grant.
Jo Grant: You. What are YOU doing here?
The Master: To coin a phrase, I've come to take you away from all this.
Jo Grant: What are you talking about?
The Master: Surely you don't want to spend the rest of your life in here, do you?
Jo Grant: Well I'm not going anywhere with you, that's for sure.
The Master: Oh, but you are, you know. Believe it or not, I am a fully accredited commissioner from the planet Sirius IV, and you and The Doctor are two dangerous criminals being handed over into my custody.
Jo Grant: So it was you. YOU ordered those Ogrons to attack the ships and pretend they were Draconians.
The Master: But of course. Those lumbering idiots could never have thought up such a brilliant scheme by themselves.