"Will I ever see you again?" Sam asked as the Doctor made his way over to the TARDIS. She looked at him as he turned back, looking longingly into her eyes.

"I don't know, Samantha. I hope so," he turned, as if to leave, but turned back, catching her eyes once more, letting himself get lost in those deep pools of green, "Samantha," he said hesitantly.

"Yes?"

"I love you," his eyes filled up with tears, and behind him, Kara rolled her eyes.

"We've not got all day, Doctor, say your goodbyes," she said softly into his ear.

"Goodbye, Samantha," the Doctor turned to Daniel, "Goodbye, my friend," he gave Daniel a hug, the type you give someone when you don't know if you'll ever see them again.

"Goodbye, you old fool," Daniel joked. The Doctor and Kara finished their goodbyes and got into the TARDIS.

"Where to next?" Kara asked, eyes flashing and pulse racing in hope.

"I don't know," the sullen Doctor replied, suddenly chilled to the bone by Kara's grin.