"Eldest child of Melody Pond and the Doctor."

"Really?"

"You're the Master. Lying to you is a really bad idea."

The Master puts a hand to his chest.

"You know who I am? I'm flattered."

"You name is written in the stars all throughout history. Of course I know who you are."

"So, tell me, why did the Doctor's son become a mass murderer?"

"I was raised by my adoptive mother. She doesn't much like the Doctor."

"I can't blame her. He killed our entire species, you know? Well, you've still got the humans, if they count. They don't count."

"...no?"

"Have you ever met humans?"

"No, the Time-Lords aren't dead."

"Yes they are. Have you tried to get to Gallifrey recently?"

"The fact that it's trapped in a pocket dimension would make that especially difficult."

"Trapped in a pocket dimension?"

He pauses.

"When did you last meet the Doctor?"

"The day he sent me back into hell."

"He sent you to the Void?"

"No, Gallifrey, right before the end of the war."

"How did you escape?"

"I'll give you three guesses."

He leans back against the console of the TARDIS.

"You stole a TARDIS and escaped?"

"Close enough."

"That seems.. fine then. The timeline seems to line up if we're talking about the same confrontation with the time-lords. This was his eleventh regeneration? Tall bloke, big hair?"

He shrugs.

"I didn't bother counting."

"You seem pretty caught up. He regenerated again, his last one. And now he's about to fuck up the universe."