The Doctor stepped briskly back into the TARDIS, his complex mind already formulating strategies to search out his lost homeworld. He couldn't wait to see it again - walk there again - and most of all, see it through Clara's eyes. He noticed she had her back to him, and he frowned when he saw her swipe at her cheeks with the backs of her hands.

"Hey, what's this?" he asked, gently settling his hands on her shoulders and turning her around to face him.

"Nothing," Clara whispered with a shaky smile.

"The last time you said that, it turned out to be a rather large 'something' that ended up being the key that let us save the day, so talk to me."

She sniffled a bit. "It's just…him…that other Doctor…he's all alone, and he won't remember what we did. He'll live for four centuries with all that guilt and pain."

He wrapped his arms around her and drew her close against his chest. "It wasn't all bad, you know. In those four centuries, I met Rose Tyler, and Donna Noble, and Wilfred Mott. I danced at a few weddings. I saved a spaceship full of dinosaurs, and I saved Christmas quite a few times. And I met you. And we saved your world. And then we saved mine.

"And as for him…well, he won't be alone for long. He'll regenerate, and then he'll find Rose, and she'll help him - me. But you, Clara, you gave him a moment of peace, and I think even a bit of happiness at the very end."

He pressed his lips to her forehead. "Better now?"

Clara nodded, her eyes shining.

He smiled, and tucked a lock of hair behind her ear. "They call me the Doctor, but you're the one who makes people better."