Warning: this story contains spoilers for season three of Doctor Who. If you have not seen this season yet then shame on you, go look them up on Google.

A/N: This story came about at random while I was re-reading book six in my anticipation for book seven.

Doctors and Portkeys

Chapter One: Privet Drive

"Why did it just groan?"

"Why did what just groan?"

"The engine, Doctor"

"I have no idea what you are talking about."

Martha Jones threw up her hands. She had given up figuring the Time Lord out long ago.

The Doctor was the last of his race, which in Martha's eyes earned him the right to be precocious.

The ship shook violently before finally becoming stone still.

"What happened?"

"I think we just landed."

"Where?"

The Doctor ignored her instead beginning to push buttons and flip switches.

"Doctor where are we?"

Looking up at her as if he had just noticed she was there, the Doctor grinned.

"We are on earth."

Martha smiled and ran for the door. When she stepped out of the TARDIS a wave of heat smacked her in the face.

"It's hot as Hades, what month is it?"

The Doctor glanced down at his watch.

"It's July."

Martha looked around noting that the neighbourhood they were in was normal looking, an indication in itself that something was wrong.

Walking to the nearest drive, she picked up a newspaper.

Scanning for the date her eyes bulged.

"Doctor I thought you told me that we can't intrude on my timeline."

"We can't."

"So why does this paper read 1996?" She said throwing the paper in his face.

Taking the paper the Doctor put on his glasses as he read the heading.

Tucking the paper under his arm the Doctor donned a face that told Martha he was going to be less than truthful.

"Maybe can't was too strong a word."

Before Martha could comment, a large portly man came out of the house in front of them and proceeded to yell.

"What do you think your doing nipping off with my paper?"

The Doctor had a goofy look on his face that he got whenever he met new people. Reaching into his duster the Doctor flashed his psychic warrant card.

The man's eyes rolled back and he began to mouth the letter 'M'. After regaining his composure, he turned around and screamed.

"BOY!"

The rose bushes shuffled and out popped a gangly teenaged boy.

"You've really done it this time boy." The man shouted.

"I don't know what you did but they've come here themselves to arrest you." He said pointing to the Doctor and Martha.

The young boy stepped around to peer at them.

"Hello." He said with a gulp brushing back the hair from his forehead.

The Doctor's smile deepened as he offered the boy his hand.

"Hello, I'm Chief Inspector Smith and this is my partner Inspector Jones." He said pointing to Martha. "And you are Harry Potter."

The boy nodded his head.

"Don't worry Harry we aren't here to hurt you." The Doctor said placing his warrant card backing his coat. "I was an old friend of your dads."

At that, Harry's eyes brightened.

"You knew my dad?"

"That's right." The Doctor replied nodding his head.

"If you're Magical Law Enforcement then why are you here?"

Martha noticed the large man who greeted them wince at the word magical.

Martha had spent a year travelling the world spreading the Doctor's gospel.

Names have power and when every human on earth spoke the Doctor's name at once, he gained more power than any other magical being in existence.

Martha had lost many misconceptions of reality during that year.

The Doctor hunched down to Harry's level. "I honestly don't know why we are here Harry. We ported completely by accident."

The Doctor turned his gaze to the house and began sniffing the air. "There's a powerful protection charm on this house." The Doctor scrunched his brows as if thinking. "Tell me Harry what age are you?"

"Sixteen next week"

The Doctor grabbed for his sonic screwdriver and pointed it at Harry.

"Look at all that energy just bouncing around inside you."

"Is that why the TARDIS brought us here?" Martha asked. She had spent enough time with the Doctor to notice the pattern of the ship's irregularity. "Something big is about to happen and this boy is at the centre of it."

"Looks that way" The Doctor said looking up at his companion.

Martha sighed and smiled at the Time Lord. "So much for a short trip eh Doctor?"

The Doctor stood up tossing his screwdriver into the air before replacing it in his suit jacket. "Seems like a pattern with you miss Jones"

"Hurry up now Harry we need to get you out of here."

The Doctor held the door to the TARDIS open waving the boy inside.

"You expect me to go with you just because you have a warrant card." Harry asked.

The Doctor rubbed the back of his head before focusing on Harry.

"Of course." He said disappearing into the ship leaving the door wide open.

Harry looked back at his uncle and then to the TARDIS. Shrugging his shoulders Harry ran inside the blue police call box slamming the door behind him.

Harry's uncle stood in his drive watching as the old blue box disappeared.