Clara: How could you know that you and her would meet again?
The Doctor: Truth be told, I didn't. But the warning I got from the Ood was..
Meri (puzzled): Wait! What? The Ood?
The Doctor: Ah, Meri, the Ood is an interstellar race who..
Clara (interrupting): I'll explain later, Meri. But Doctor, you said the Ood was moving backwards through time. So his warning was...
Meri (interrupting): ..was from the future.
Meri looks embarrassed.
Meri: Er, sorry. You're right, Doctor, that...does tend to happen.
The Doctor: No problem at all, Meri. And you're absolutely right. But the Ood's warning was accompanied by a psychic flash...of you, Ms. Scott.
Meri: Of me?
The Doctor: Yes and it was a bit of a gamble but a very good thing I took it. Without that precaution, I would have died in the Rani’s TARDIS and, well, so would’ve everything else.
The Doctor: Meridian Scott.
Then the Doctor opens his eyes. The Ood nods and his speech orb glows.
The Ood: Yes, Doctor.
The Ood vanishes and the Doctor walks away towards the familiar looking blue box of his TARDIS.