DOCTOR: This is what we're trying to stop.

RUBY: But this isn't real. This is... this is just like a parallel universe.

DOCTOR: This is your time. This is your home if Maestro isn't stopped.

DOCTOR: ...

DOCTOR: In the past, right now, I live in a place called Totter's Lane. 1963, I park the TARDIS in a junkyard and live there with my granddaughter, Susan.

RUBY: Oh!

DOCTOR: Okay?

RUBY: Your what?

DOCTOR: My granddaughter.

RUBY: Susan.

DOCTOR: Oh! People always say the Titanic, or Mars, or Bethlehem. But the Beatles! Why have I never done that before? Come on!

DOCTOR: The Time Lords were murdered. The genocide rolled across Time and Space, like a great big cellular explosion. Maybe it killed her too.

RUBY: Doctor, God...

MAESTRO: The One who Waits... is almost here!

MAESTRO: Go on, then. Do it. Can you find it? The lost chord? Are you enough of a genius?

DOCTOR: Oh, I would never call myself that, Maestro. But I have lived. And I have loved. And I can only smile like this because I have lost so much. I've experienced everything, every single thing, and if that's where music comes from... I can find the chord to banish you.

RUBY: I wrote this for my friend Trudy when a girl broke her heart.

TIMOTHY: Henry, get away from him.

MAESTRO: Them.

TIMOTHY: What?

MAESTRO: Me.

TIMOTHY: What?

MAESTRO: I'm them.

TIMOTHY: You're who?

MAESTRO: You're who?

DOCTOR: I thought that was non-diegetic.

DOCTOR: But there is one thing that I should warn you about, Ruby, and this is really very serious. With all of my adventures throughout Time and Space, I have to tell you there is always a twist at the end.

RUBY: Wait! No. Is it safe? What if I change history by stepping on a butterfly or summat?

DOCTOR: Well, that's not going to happen, is it? Who steps on butterflies? You'd literally have to be like, "Wait. Come 'ere, butterfly! "Come 'ere, 'ave it!"

DOCTOR: Into the belly of the beast. Yeah, this stuff is slippy, Rubes. Be careful.

(She slips then gets dribbled on from a pipe outlet.)

RUBY: Oh. Ah. Oh, my God. Oh, this is disgusting. Don't call me Rubes!

DOCTOR: Ha-ha! Space babies!

RUBY: But hold on. I can't call you Doctor. No, I want to know your name.

DOCTOR: Yeah, that's er... that's tricky, because I was adopted, and the planet that took me in, they were kind of... they were kind of posh. They'd use titles like the Doctor, or the Bishop, or the Rani, or the Conquistador. Say Doctor for a thousand years and it becomes my name.

POPPY: We're not meant to be like this. Did we grow up wrong?

DOCTOR: Oh, Poppy. Oh, Popsicle. Look at me. Look at me. Nobody grows up wrong. You are what you are, and that is magnificent.

DOCTOR: Oh, that's good. DuBarryDuPlessy is a starwide organisation. It means they can take in lots of refugees.

RUBY: Oh. Well, can't we call them for help?

JOCELYN: They don't go and fetch refugees. That's the fate of every refugee in the universe. You physically have to turn up on someone else's shore. And we can't move.

DOCTOR: If you change one thing, a single snowflake, that could change your birth mother's story and then you would never meet me, none of this would ever happen, and we would fall into the deepest, darkest paradox. Ruby, trust me. I think that snow was a warning. I can't. And I won't.

JOCELYN: I can't get a proper fix. I told you, these systems are a crock of... (the Nan-E filter turns on) ..waste products.

DOCTOR: Mind your language, Nan-E.

RUBY: It's snowing. Okay, what just happened? I said snow, and we've got... ..snowflakes.

DOCTOR: It's like a memory just came through, from the day that you were born.

RUBY: But how? Is this the sort of thing that happens with time travel?

DOCTOR: I have been to the ends of time and back, and I have never seen anything like this before.

DOCTOR: Yeah, but I've met a million ugly bugs. I'm an ugly bug.

DOCTOR: Oh. Oh, we're on a baby farm. Ha-ha! A parthenogenesis machine. What is it with you and babies?

RUBY: I was going to say the same thing to you.

DOCTOR: We've gone from baby to baby. I'm not saying things are connected, and yet... things connect.

RUBY: We made it. The human race, we survived. We went to the stars. And ten minutes ago, Doctor, just ten minutes ago, you said genocide. Your people are gone.

DOCTOR: Yeah.

RUBY: How do you keep going?

DOCTOR: For days like this, Ruby Sunday. I don't have a people. I don't have a home. But I don't have a job, either. I don't have a boss, or taxes or rent or bills to pay. I don't have a purpose or a cause, or a mission, but I have... ..freedom. And so I keep moving on, to see the next thing, and the next, and the next. And sometimes... it looks even better through your eyes.

RUBY: So that was a normal day for you, then?

DOCTOR: No, no. That was extra-special nuts. And you, Ruby Sunday, get this. Your very own TARDIS key.

RUBY: What for?

DOCTOR: I have the whole universe at my fingertips, and I'm all on my own. So I'd love it if you came with me.