- The Doctor: Do you have any idea where those planets might be?
- Graham O'Brien: You get me an A to Z of the universe, and I'll be able to stick my finger straight... Um, no. I've got no idea.
- Tahira: Who are you? I've never seen you here before, Doctor.
- The Doctor: Oh, my brief is quite wide-ranging.
- The Doctor: I've explained about the TARDIS and the fact that you're from 700 years in the future.
- Tahira: I'm really not ready for today.
- Tibo: Ryan, where am I?
- Ryan Sinclair: Alright, mate, try not to freak out, yeah? But you're on a floating space platform in a gravitational pull between two colliding planets halfway across the universe 'cause of the guy who was stealing your nightmares through creepy detachable fingers.
- Tibo: Prank?
- Ryan Sinclair: No.
- Tibo: Take me through that again.
- Anita Patel: Terrible thing about being older is you have all this experience and nobody ever wants to hear it.
- Yasmin Khan: We've come a long way from home.
- Tahira: That's impossible. Nobody can travel across the stars.
- Yasmin Khan: Unless you're the Doctor. She's basically the definition of impossible.
- The Doctor: What did the telepathic circuits lock onto?
- Ryan Sinclair: [to Graham] If they were hooked into your mind, no wonder we're somewhere dark and weird.
- Graham O'Brien: Oi!
- Zellin: You know the best part of humanity? The thing that truly sets them apart? The cruelty of their own minds directed towards themselves. The doubt. The fear. The endless voices telling themselves they're incapable and unworthy. Hmm! Such an exquisite animal. Built-in pain. And the repositories of that pain? The nightmares.
- Zellin: I presume that's your doing, Doctor. Always interfering. I've watched you blunder into this.
- The Doctor: "Blundering" top of my CV, alongside "Plays well with others" and "Excellent tap-dancer in a crisis".
- Ryan Sinclair: What you gonna do?
- The Doctor: Me? Oh, you know. Very busy. Busy, busy. I've got maintenance. Correspondence. Correspondence about maintenance.
- Sonya Khan: People are really annoying and they hate being told that. I'm just not cut out for customer services.
- Graham O'Brien: Are you sure it's safe?
- The Doctor: You trust me, don't you?
- Graham O'Brien: Have I got to answer that?
- The Doctor: Oi!
- Graham O'Brien: Is it gonna hurt?
- The Doctor: No. Probably not. Maybe. Yeah. Ready?
- Graham O'Brien: No!
- The Doctor: Zellin's a mythical name, way beyond this universe. Zellin was thought to be a god.
- Zellin: I blush.
- Zellin: And I do like this form. It's so small. To exist within molecules and atoms is fascinating. I can shape them, regrow, mould my form, to provoke fear from humans as I extract nightmares from the scared and vulnerable. Now, that--is a good game.
- The Doctor: So, how do you defeat two rampaging immortals? Answer you don't. Those two planets, they've spent a millennia trying to work out how to do it.
- Graham O'Brien: Well, I think the motivational speech needs a bit of work, Doc, if you don't mind. Also, a plan, by the way.
- The Doctor: I've got plans crashing through my brain all the time. You want a plan? Come to me. Identifying which plan's gonna work, that's the tricky bit.
- The Doctor: I should say a reassuring thing now, shouldn't I?
- Graham O'Brien: Yeah, probably.
- The Doctor: I'm still quite socially awkward. So, I'm just gonna subtly walk towards the console and look at something. And then in a minute I'll think of something that I should've said that might have been helpful.
- Ryan Sinclair: Look at me. I'm not laughing. Mate, I've seen some weird things while I've been away. Things you wouldn't believe were possible.