The Doctor and Rose rushed down the stairs giggling like hyperactive children.

"What's going on?" Jackie asked as they reached the bottom of the stairs.

They both beamed a smile at her, slightly breathless and giddy from the excitement of it all.

"We're going to look inside the TRADIS" Rose exclaimed eagerly.

"Won't it be the same as the other one?"

"Nope. This is a completely new TARDIS. It looks the same on the outside but on the inside it's built specifically around Rose and me. Can't wait to see what she's made of herself," The Doctor explained.

"Is it really built around us?" Rose asked him, surprised by just how technical the TARDIS was.

The Doctor nodded his head before grinning at her again.

"Every little bit."

"Well, come on then what are you stood there fore? Let's go and see it." Jackie ordered, walking towards the stairs behind the Doctor and Rose.

"Wait, what about Tony?" Pete exclaimed slightly concerned that it might frighten him.

They all looked at one another, nobody wanted to answer. Finally, Jackie spoke.

"I think he should see."

Pete widened his eyes.

"What? And what if he freaks out?"

" Rose and the Doctor are a big part of his life, if they're going to be coming and going he deserves to know what they're doing." She argued.

The Doctor and Rose looked at each other guiltily. They were an enormous part of his life, he adored both of them, they could only hope that he'd get used to them not being around as much.

"We're not going to be able to make things up forever, there will come a day when he'll want to know the truth. We might as well start now."

Pete looked from Jackie to Rose and the Doctor. They were eagerly watching his expressions to try and predict what he would say next.

"Ok, fine. Tony." He called.

Tony came rushing from the living room towards where they were all congregated.

He stood still between the Doctor and Rose and looked towards Pete searching for an answer to why he had been summoned. He didn't give him any, but looked towards Jackie asking her to explain. She looked back at him and rolled her eyes. Honestly men! She knelt down to Tony's level and took his hand to pull him closer to her.

"Sweetheart, we are all going to go down to the basement and look at that machine the Doctor and Rose have been growing." She gently explained.

He looked at her blankly for a moment.

"What is it?" he asked her.

Jackie looked up at Rose asking her to explain, Rose smiled gently before also kneeling down.

"Do you remember when me and mum went away for a while, when we went to find the Doctor?"

He nodded at her, listening carefully.

"Well it's a bit like the machine I used to do that, it travels through space and time," she continued.

"Oh. Why did you need to find the Doctor?" he asked innocently looking down at her.

Rose stuttered slightly, before looking up at the Doctor, asking him to help her out. He too knelt down to Tony's level.

"Well Tony, we used to travel together. But one day we got separated." The Doctor began, occasionally looking nervously at Rose and Jackie, hoping that he didn't say anything that they didn't want him to know yet.

"What happened?"

There was a moment of silence; only the birds chirping and the occasional dodgy pipe churning could be heard.

"It's a long story." The Doctor told him.

He stood back up, Rose and Jackie followed. Tony looked up at their slightly saddened faces and he knew whatever had happened was a very sad thing. He tugged at the bottom of the Doctor's jacket. The Doctor looked down at his wide, curious eyes.

"Can you tell me one day, Doctor?"

The Doctor looked at everyone else, before looking back down at him.

"One day, yeah."

"You got any other stories about travelling with Rose that you can tell me?" he asked smiling up at him.

"Plenty" the Doctor smiled back.

As they made their way to the basement, Tony safely in Pete's arms, both the Doctor and Rose began to feel nervous as they heard the TARDIS gently humming. They reached the bottom of the stairs and stood outside of the TRADIS doors. Rose gently grasped the Doctor's hand and he softly smiled down at her.

"Ready?" he asked her.

She nodded at him excitedly and together they very slowly pushed the doors open.

The tension that had built was thick and everyone waited in anticipation. After what felt like hours of waiting the doors were open, everyone gasped, as they saw… nothing!

The Doctor and Rose looked at each other confused. Surely this wasn't it.

"Doctor, where the hell is our TARDIS?"