If I did not note this last chapter, this is set pre-Rose.
The Doctor looked back at the house, wondering how Kara knew so much about him, it was as if Kara's mother had known him, but she couldn't have. With this on his mind, he nearly ran into a pole.
"What am I doing?" he asked himself, "So what if she saved my life, she's just another ape," he tried to get her off his mind. It didn't work. "I am getting distracted by something so small..." he looked back again, and noting the number of people on the street, he wisely shut up.
Meanwhile, Kara stood at the window in the attic, watching the Timelord walk away. "Mother, I don't know what to do. You told me that he'd take me with him, that The Doctor would take me as his companion. But he's gone. What do I do?" Kara asked herself.
"He will, Kara," a voice, as familiar to Kara as her own, said. Kara spun around and there was her mother.
"Mum?" Kara asked. She noticed a man... he was her father. Rumpled hair and, as her mom had said, a ginger. "Dad?" They were standing in front of a blue telephone box, one that said "Police Public Call Box" on its top.
"Yes, Kara, this is your father," her mother said. "We came because you can't give up. Hold on to everything you hold dear and don't let go. Do this for me, Kara,"
"I will Mum," Kara had tears in her eyes.
"Good-bye, Kara, I love you," her mother said.
"Good-bye Kara. Don't worry, it works out great," her dad said. "Come on, Rose you know she has to do this on her own. We have to go"
"Good-bye, Mum, Dad," Kara waved farewell to her mother and the Timelord who was her father as they left in the telephone box.