"Kill you?" Sarah asked incredulously.

"Yep. It wouldn't be the first time someone raised a child to kill me." The Doctor flashed a smile her way.

"Well I won't do it." Sarah said simply. "I can't do it. I can't kill anyone. Especially you."

He raised his eyebrows, "We only just met and you're already willing to save my life. Charming."

She flushed a deep red, "I—I didn't mean it like that! I just meant we have the same memories. Killing you would be like killing an extension of myself."

The Doctor grinned again, "I knew what you meant, Sarah. Just trying to lighten the mood. Anyway, you can't just refuse. They'd find a way to make you do it which is why I'm taking you away from here. There's no place safer than with me."

"So we're just going to run…?"

"You have my memories. Surely you realize that's always my best plan."

Despite herself, Sarah laughed.

"Now, Sarah Temple, all of time and space at your disposal… Where would you like to go?"

A smile slowly crept up her lips, "Anywhere? Anywhere at all?"

The Doctor nodded, "You name it."

She bit her lip and furrowed her eyebrows, really thinking. All of time and space… Where do I want to go? Sarah turned again to face the Doctor, "I want to see my mum. I want to see her the way she was when she was with you."

The smile faded from his face, "Sarah we can't, I can't—"

"Go back on your personal timeline, I know. But if we don't interfere, that won't matter, right?"

The Doctor opened and closed his mouth a few times before accepting that Sarah was right. "Fine!" He said, frustrated, "But on a few conditions." He walked up to Sarah and wagged his finger in her smug face, "We watch from afar, we don't let them see us, we don't talk to them, and under no condition do we ever interfere. Got it?"

She grinned and nodded, "Got it."

He smiled again and straightened his bow tie, "Good. Now," He walked back to the control center and set it for a date and coordinates that Sarah couldn't see from where she was standing. "Hold on tight!" He pulled a lever and they were flying. Both of them screamed with glee and held on for dear life. For the first time since she arrived in America, Sarah felt at home.

After about thirty seconds, the sound of the TARDIS braking flooded the time machine until they came to a complete stop. Sarah stood upright and looked at the Doctor.

"Where are we?" she asked.

The Doctor smirked, obviously pleased with himself, "Go see for yourself." She turned to run to the door, "Except not in those clothes! They'd probably hang you for that… or something."

Sarah turned around and faced the Doctor, "So obviously not modern or future times… We're in the past."

He rolled his eyes, "Stop being clever and go change. Back hallway, third door on your right."

Sarah began to run by him, when something in the monitor stopped her. Frowning, she didn't look up at the Doctor when she said: "You didn't park next to yourself, did you?"

"No," he said as if it were the dumbest thing he ever heard, "Why would you think that?"

"Because I can see you peering into the TARDIS monitor. I can also slightly make out the outline of another TARDIS if I squint hard enough."

"What?" He asked incredulously and stalked over to the monitor.

"Is it you? The future you?" Donna Noble appeared on the monitor next to the Doctor. The tenth doctor furrowed his eyebrows and turned away from the monitor. He rubbed the side of the TARDIS with his hand before licking it.

"You're disgusting." Sarah and Donna said simultaneously. Sarah's eyes widened as she turned back to the monitor.

"Yeah, future me." Ten said, "New TARDIS." He grinned and turned to Donna, "I get a new TARDIS!"

Eleven turned to Sarah, "You. Stay here. Got it?"

She rolled her eyes, "Go."

He winked at her and then ran to the door, opening it just enough to see himself and Donna.

"It's you! Oh man, do I miss you!" The Eleventh Doctor said and hugged his past self.

"I've regenerated." Ten held Eleven out at arm's length and examined him, "Look at your hair… it's so long. And why are you wearing a bow tie?"

Eleven frowned and took a step back, "Bow ties are cool." He said defensively.

"Why are you here? You knew I'd be here, well you knew you'd be here, you know not to go back on personal timelines."

Eleven put his hand on Ten's shoulder, "You've changed in your old age. Now, this was clearly a mistake," Eleven began to shut the door, "so if you don't mind, I'll be leaving—"

Donna's foot stuck in the gap, stopping Eleven from closing the door, "Where am I?"

"Sorry?" Eleven asked, though he knew perfectly well what she meant.

"Are you alone in there? Why aren't I with you?"

"Donna…"

"Don't you 'Donna' me, Doctor! Something happened I can see it in your face. That's why you're here." Donna pushed her way through both Doctors into the TARDIS and stopped cold when she saw Sarah, "Who's she?"

Ten stared at Sarah also, but he walked up to her and touched her red hair, looking into her eyes. Sarah felt almost violated the way he looked at her, but then as she continued to look into his eyes she found herself in trance like state where she saw all of her—the Doctor's—memories as if projected on a screen in her mind. When the trance broke, both wheeled back, Sarah winced and clutched her now pounding head.

Ten staggered backwards and regained his balance, "Donna we need to go. Now. You," he pointed to Eleven, "you're an idiot."

"She made me do it!" he said childishly pointing at Sarah.

Sarah rolled her eyes and crossed her arms, "Oh, please."

Ten marched up to Eleven, "How come she has time lord in her?" he hissed.

Eleven chuckled nervously, "Spoilers."

"Well let's think, the only reason I would ever bring Donna's daughter, who is part time lord, to meet Donna would have to be if something happened to Donna. Oh, and if she cried or outsmarted me."

"Wow, you're good." Eleven grinned.

Ten smiled, "I'm you. Now," he grew serious again, "What happened to Donna?"

Eleven just looked at the ground and shook his head.

Sighing, Ten ran a hand through his hair, "How long?"

Eleven looked back up at Ten, "You have about a year."

"Donna we're leaving." Ten said, raising his voice.

"I'm not leaving until you tell me who she is." Donna said, pointing at Sarah.

"She's just another companion, why is it so important?"

"If she was just another companion that trance thingy, or whatever the hell happened wouldn't have happened. Do you think I didn't see you two whispering quietly yet urgently at the same time? You two are nutters."

Ten was silent for a moment, "Donna, I said we're leaving."

"Doctor, I said I'm not."

Ten stared at Donna for a long moment, "You know, I can see it on your face that you know who she is. You just want someone else to say you're wrong."

"What are you talking about?" Donna said defensively.

"Look at her, Donna. Look really hard." Ten urged.

Donna slowly walked up to Sarah, who was clutching Eleven's arm as he whispered into her ear. She was staring straight at Donna and before she knew it, Donna was a mere foot away from her. She reached out and touched Sarah's hair, which was identical to her own, and then looked into her eyes which were also identical. Sarah saw the light bulb go off before Donna even said anything.

"You're my daughter." Donna breathed incredulously.

"Hello mum." Sarah smiled and before she knew it, Donna's arms were around her.

Suddenly, the TARDIS shook violently, Donna and Sarah jumped apart. "Doctor…" Sarah muttered, frightened because she was sure of what was coming. Her blood ran cold and her heart began beating a mile a minute.

Eleven had already ran over to the monitor in the control center and he swore. The, he said the words Sarah had known would come, but prayed they wouldn't.

"They found us."