- Black Guardian: The Doctor still lives.
- Turlough: He's trapped. He's powerless. Probably dead already.
- Black Guardian: You represent a poor investment of my time and energy, and for such an investment there is only one course to follow.
- Kari: Why won't it move?
- The Doctor: It's controlled by the computer and the computer is uncontrollable.
- The Doctor: [chipper] It'll be good to see the TARDIS again.
- Nyssa: And Tegan.
- The Doctor: [less chipper] Yes, well... It'll be nice to know she's safe.