When Rose next woke the bed was empty. She looked about the infirmary but she was alone. Listening intently, Rose could hear the Doctor tinkering in the console room and after taking a shower and changing her clothes she went to join him, feeling a bit better than she had done for the past few days.

"You're finally up then sleepy head," the Doctor grinned as she wandered in, all smiles.

"Don't start," Rose replied jokingly. "I was awake earlier, but someone was still snoring."

"I do not snore!" The Doctor protested. "Besides how do you know I wasn't pretending?"

Rose gave the Doctor a look that said 'if you were pretending then my name's Margaret Blaine'.

"Alright, I was asleep," the Doctor admitted, turning slightly pink around the edges. "I managed to track the signal of who had control of the nanites, so if you want to say goodbye to your mum we can get going."

"Ok," Rose said walking down the ramp and out the TARDIS doors leaving the Doctor to his own devices.

He leant against the TARDIS console sighing to himself. The TARDIS chattered and he rolled his eyes.

"She's only just saved the world and now we've got to deal with her nanites, now is really not the time to make her deal with that kind of thing," the Doctor murmured. "I'll tell her, one day… just not now."

The TARDIS made a noise that sounded like a huffy sigh and the Doctor almost laughed.

"You sound so much like Rose when you do that," he muttered. Though he couldn't actually see it, the Doctor knew the TARDIS was smiling.

Rose charged up the stairs and knocked on the door of her mums flat. Jackie smiled when she opened the door and saw who it was.

"Hello love," she said. "You off?"

"Yeah," Rose said hugging her Mum. "I'll come back a visit soon, I promise."

"Good," Jackie replied pulling back to look at her daughter. "And don't let the Doctor keep you away."

"He won't Mum," Rose said rolling her eyes. "Bye."

"Bye," Jackie said watching her daughter wander back towards the TARDIS.

The Doctor was already setting the controls when Rose entered again. She wandered up to the console and surprised the Doctor by slipping her hand into his and leaning against him. He paused looking down at her with concern.

"You ok?" He asked. "You're not feeling ill are you?"

"No," Rose said, her brightness loosing its edge. "I just dread to think what would've happened if we hadn't gone home."

He squeezed her hand reassuringly and pulled a final lever on the TARDIS. It shuddered into life and the Doctor turned to look at Rose properly.

"We can come back after we've dealt with the nanites," the Doctor said quietly. Rose smiled slightly shaking her head.

"S'all right," she replied. "I just need an adventure after this to make things normal again."

The Doctor looked at her for a moment and had the strangest feeling that the TARDIS was whispering to him. He looked at Rose who was staring back at him. His hearts started thumping hard in his chest and his eyes were darting from Rose's face to her lips.

He bought a hand up to her face and was so tantalizingly close to just leaning forward and kissing her, when he realised what he was doing.

"We shouldn't be here long," the Doctor said quickly turning very obviously pink. He let his hand fall to his side again as the TARDIS screeched to a halt. She made a hissing noise at the Doctor.

Not the time. I know how close I was and she doesn't need this. Especially with all the complications, it wouldn't be fair on her.

Rose cleared her throat looking away as her cheeks flushed a deep red. She stuffed her hands awkwardly in her jacket pockets.

"Good, good," she said swallowing. "Sooner we're done the better."

"Umm," the Doctor looked at her and pointed towards the doors. "Out we go then."

"Yeah," Rose wandered towards the doors. She was sure the Doctor must be able to feel the heat radiating from the back of her neck.

Opening the doors Rose was surprised to see similar surroundings to that of Earth. She paused, waiting for the Doctor to follow. He stood beside her looking round as the wind whipped his coat about.

"Where are we?" She asked, tentatively taking his hand.

"Earth," the Doctor said sounding a little surprised. "Judging by the architect I'd say we were around a hundred years in your future."

"The tracking signal's coming from here?" Rose looked at the Doctor questioningly.

"Would seem so, yeah," the Doctor nodded and then started walking forward, Rose following.

"Where are we going?" She asked jogging to keep up with him.

"Well the signal is coming from in there," the Doctor said pointing to a tall building.

Rose was going to say something else then but decided against it. Her mind was still reeling from what had happened in the TARDIS. She was worried in case the Doctor was mad at her, but judging by the way his hand was rubbing hers gently, she needn't have.