Something about the streets of London kept drawing the Doctor back. It was like home to him. Of course he belonged to the TARDIS and the stars, but he had met so many wonderful people in London.
He began to think of his previous companions as he absentmindedly paid for his chips. "Chips tasted better when Rose was around." He thought.
As soon as Rose popped into his mind, he wanted to run back into the TARDIS and cry. He wanted to just see something remotely as beautiful as her.
Defying his urge, the Doctor sulked through the street and navigated back to his TARDIS. His real companion. Who would never leave him. He had met her once. She was such an interesting character, but he had never expected her to act any different. Even though the TARDIS knew him the best and was always with him, he was still lonely.
It's been a while since he's had a companion, or anyone in the TARDIS. He's been having to defend the Earth by himself, and he was getting tired of it. He wondered what his next destination would be, perhaps he'd just go wherever the TARDIS took him. She always knew where to take him. He was always needed somewhere.
That may have been true, but recently things have slowed down a bit for him. It was easy, protecting Earth, which was different from how it used to be. It was odd, he hadn't needed to use his psychic paper or sonic screwdriver in a while. He hadn't had to trust someone wholeheartedly, or blow up something in what seemed to be years.
The Doctor's pace was steady, taking his time eating his snack and looked at the humans. "How oblivious they all are to everything." He thought, "How wonderful it must be."
He located his TARDIS, smiled and stepped in, "WHO ARE YOU?"
A tall man, in a black trench coat and a scarf with curly brown hair and blue eyes stood in the center of the TARDIS. He looked up and saw the Doctor.
"I'm Sherlock Holmes." the man said.
"Why are you in my TARDIS?" the Doctor armed himself with his sonic screwdriver.
"It's right next to my flat...or what used to be my flat." Sherlock looked at the controls.
The Doctor noticed a change in his eyes when he looked away from him. He seemed saddened, as if he were thinking about someone. He looked at his screwdriver, forgetting the reason he even bothered taking it out of his pocket. Why would he-the Doctor-be scared of a human being in his TARDIS?
"So...this box. It's bigger on the inside?" Sherlock asked.
"Actually it's two different-"
"Dimensions?"
"Why...yes." the Doctor was taken by the fact Sherlock had known.
"Interesting...how did you make it?"
"I didn't make it. I...stole it."
"How would you walk out from some place with this?"
"It teleports. She can go anywhere, at any point in time."
"It's a time travelling machine?"
"Yes."
"And you're a time traveller?" Sherlock walked closer to the Doctor, growing more and more curious.
"Well...basically, but I'm an alien."
"Obviously." Sherlock smirked.
"What do you mean obviously?"
"The way you dress, the way you act, that glowing pen thing you've got in your pocket, and this time travelling machine. It's likely that humans would never be able to create such a thing."
"What if I was a human from the future?"
"But you're not." Sherlock smiled.
"No. I'm a Timelord from the planet of Galifrey." the Doctor made his way to the controls of the TARDIS.
Sherlock followed, "Why aren't you in Galifrey?"
"Because."
"Because what?"
"It's been destroyed."
"What about the rest of the Timelords?" Sherlock asked.
"Gone." the Doctor replied.
Sherlock nodded.
"Are you overwhelmed?" the Doctor teased.
"Never." Sherlock shook his head.
"Well...all of space and time Sherlock. Where would you like to go?"