"Doctor, you might wonna come see this." Amy Pond called to him as soon as she entered the TARDIS.

"What is it Pond? I'm busy." His voice floated in from the outside.

"But Doctor, you really really need to come take a look." Amy hadn't moved from the entrance to the TARDIS so when the Doctor came running in, he nearly knocked both of them over. He righted him self, straightened his bow tie, and turned to Amy.

"What was so important that you couldn't give me ten minutes to fix…" He never got to finish his sentence, forgetting what he was saying as he followed Amy's gaze over his shoulder to the console, stunned silent.

"Hello there, Doctor. Nice to finally meet the new you." The young girl perched on the jump seat stood and smiled at him.

"How did she get into the TARDIS?" Amy whispered to the Doctor, who just stood and stared at the mysterious girl in front of him.

"I have a key" She said as she pulled out a TARDIS key hanging on a simple string around her neck out from under her shirt.

"Where'd you get the key?" Amy asked the girl directly this time, curiosity getting the best of her.

"My mum gave it to me." Stated the girl simply.

The Doctor had not taken his eyes off her throughout the whole exchange. She was familiar, too familiar. Her jacket, her smile, her shoes, her cheeks, her eyes, hair, smile, all so familiar. No matter how many details he picked out, he always came back to her smile, with her tongue poking out from between her teeth.

"No," He said suddenly coming out of his shock. "that's impossible."

"Not impossible, highly unlikely but never impossible." She beamed at him, stepping around the railing, closer to him. "You've changed." She stated, tilting her head to look at him better. "You don't look like him anymore, like dad."

And suddenly the Doctor understood.

"You're supposed to be in another universe." He told her.

"And yet, here I am. Funny how these things happen."

"But," He walked right up to here, studying her, his face only a few inches from hers. "no. This isn't right."

"Still rude, I take it." She frowned slightly at him, eyeing his hair. "Rude and still not ginger."

The Doctor stood, gaping in shock. From the door, Amy shook her head, clearing her head and trying to make sense of what was going on. She moved closer to the Doctor and the mysterious girl while they silently studied each other.

Finally finding her nerve again, she asked the girl "And who are you, exactly?"

The girl turned to face the red head and smiled. "Kali." and with that she held out her hand.

"Amy Pond" and with that they shook hands. "And how do you know the Doctor?" she prompted.

"Well," Kali said, scratching the back of her neck. "that's the thing. He's my dad."

Amy's eyebrows flew sky high but she kept silent as Kali continued.

"Well, he was my dad, the man who created my dad." She paused, trying to find the words to describe such a strange situation. "It's complicated."

The Doctor's mind had been working triple speed through this whole conversation. It was all coming together, all the familiarities. The fitted leather jacket that was the exact same color as the one he wore constantly as his 9th self. The red converse, dark color hair, and eyes that were identical to his last self. But her cheeks and smile, oh that smile, were twin to that of

"Rose." The name came unbidden to his lips.

"Rose Tyler, defender of the Earth," Kali said. Her eyes glazed over as memories flooded her mind. "my mum."