AN: Oops. I always do this. I write the story, then forget to put in the disclaimer.

Disclaimer: I would need a TARDIS in order to be the owner of Harry Potter and Doctor Who. Since I don't have one, well, there you go.

Chapter 1 - New problems for Harry

'Dear Mr. Potter,

I regret to inform you that your relatives, Vernon and Petunia Dursley, as well as their son Dudley, have been killed in a train accident. Their car had stalled on the tracks just moments before a train hit them.

Because Vernon Dursley never made a will, the estate of the Dursleys will be divided between yourself and Vernon's sister Marge. Miss Dursley has already picked up the things she wanted to keep of her brother's, while the rest goes to you. Miss Dursley tried to claim the house, but we have been informed by your estate's solicitors that Number 4 Privet Drive was owned by your mother, Mrs. Lily Potter nee Evans, and therefore rightfully belongs to you.

We apologize for the inconvenience, and grieve for your loss.

Wechet M. Andow,

Attorney'

Harry stared at the letter that was delivered. It came the morning after Sirius's escape from the dementors.

"Harry, what is it?" asked Hermione.

"Here, read this. I need to talk to Professor Dumbledore," said Harry, handing over the letter. He then got up to walk to the Head Table.

"Professor Dumbledore, may I talk to you in your office?" asked Harry once he reached the table.

"Certainly, Harry," said Dumbledore, and the two of them left for the Headmaster's Office.

Back at the Gryffindor Table, Hermione read the letter and got a sad look on her face.

"What is it, Hermione?" asked Ron.

"Looks like Harry has some new problems," said Hermione.


In Professor Dumbledore's office, Harry got straight to the point.

"We have a problem. The Dursleys are dead. I got a letter from Uncle Vernon's attorney. It said they were run over by a train. The estate was divided between myself and Marge. She got what she wanted, and I got the rest, which includes the house," said Harry.

"How did you end up with the house?" asked Dumbledore.

"Turns out mum bought the property for Aunt Petunia. However, she held onto the deed and it got tied into the Potter estate, which by the way thank you so much for telling me about," said Harry, his voice dripping with sarcasm.

"I'm sorry, Harry, but I felt that you weren't ready for such a big responsibility," said Dumbledore.

"Bullshit, you just want to keep me under lock and key," said Harry. "You may say you care, but if you truly did, you wouldn't have left me with the Dursleys. It's my life, headmaster, and I ask you to please, stay the hell out of it from now on." With that, Harry got up and walked out of the office, leaving an old, broken man to cry in silence.


Returning to the Gryffindor Common Room, Harry ran into Ron and Hermione.

"What's the matter, Harry?" asked Ron.

"A lot of things," said Harry. "Turns out that Dumbledore's been keeping my family estate from me."

"Well he is your magical guardian," said Ron, who covered his mouth a second later.

Harry stared at Ron. "Great. Just great. How can people expect me to make a decision if I don't have all the information?!" he yelled.

"Harry, we..." started Hermione.

"No, forget it. After school lets out, I'm going to Gringotts to see my parent's will and find out more about my estate," said Harry. "Right now though I will be thinking long and hard about our friendship, because I've been noticing a few things that I really don't like." Harry then headed up to the boys third-year dorm.

Ron sighed. "Do you think being informants for Dumbledore was a good thing, Hermione?"

"I'm beginning to think that Ginny, Fred, and George were right to reject the offer," she replied.


The train ride home was a solemn affair. Harry was in a compartment with Fred, George and Ginny, leaving Ron and Hermione to themselves. Malfoy, Crabb and Goyle came by for a visit, but Harry laid a trap ahead of time, so the three of them were now hanging by a rope outside of the train.

As they pulled into the magical side of King's Cross, Harry gave a message for Ron and Hermione to Fred and George.

"I've decided that I'm going to continue the friendship on a trial basis," said Harry. "However, they have to quit being informants to Dumbledore. Tell your mum I'll see her later in the summer. I need to floo to The Leaky Caldron and visit Gringotts. Laters." Harry grabbed his trunk and Hedwig's cage and did exactly what he said.

"Something tells me that Harry is going to lose one or both of them as friends," said Fred.

"At least he's willing to be congenial on the acquaintance level," said George as the two of them headed towards the gate back to muggle London.


Exiting the floo in The Leaky Caldron, Harry ordered a room from the barman, Tom. Upon entering the room, Harry let Hedwig out of her cage and told her he would be back in a while. Hedwig nodded, and Harry left to go see the goblins of Gringotts.

Entering the bank, Harry walks up to the first available teller he sees.

"Hello, my name is Harry Potter. I need to see the person in charge of the Potter Family account," said Harry.

"I'll have a goblin take you back to Rotnose in the accounts department. GRIPHOOK!" yelled the goblin.

The same goblin that Harry remembered from his first visit came up to the desk.

"Hello, Griphook. How have you been?" asked Harry.

Griphook and the teller were stunned. "You actually remember me?" asked Griphook.

"Of course. Why wouldn't I?" asked a puzzled Harry.

"Most wizards and witches tend to ignore us unless it's business related," said the teller.

"I'm beginning to find out that I will never be normal, and though I will still try to hide from my fame, doesn't mean I can't go for fantastic," said Harry.

Griphook just shook his head and beaconed Harry to follow him.

Harry followed the little goblin until they came to an office door. There was a plaque on the door that read: Rotnose - Account Manager for The Potter Family and The Black Family.

Cool, something else in common with Sirius, thought Harry, as Griphook knocked on the door.

"Come in," said the goblin on the other side. Griphook opened the door and let Harry inside.

The interior of the office was a mix of the typical and untypical. There was the standard desk, shelves, and filing cabinets, as well as pictures of family, but hanging on the walls were swords, daggers and shields of all types.

"Ah, Mr. Potter, how good to see you," said Rotnose. "Truthfully, I've been expecting you for a couple of years."

"Sorry about that, but a certain headmaster has been keeping things from me," said Harry as he took a seat."

"I should have known. Albus Dumbledore does more harm to Goblin Relations than any other person," said Rotnose with a shake of his head.

"Anyway, I'm here to see my parent's will," said Harry.

Rotnose nodded and went over to one of the filing cabinets. Pulling open a drawer, he reaches in and retrieves an envelope, which he hands to Harry.

"Inside is the will of your parents," said Rotnose, as Harry opened the envelope with trembling hands.

'The will of James and Lily Potter -

We, James and Lily Potter, being of sound mind (Padfoot, Moony, if even one snort comes out of you, this parchment will automatically hex you) and body, do declare this our last will and testament.

First off, if the Dark Dingleberry known as Voldemort killed us, then our secret keeper, Peter Pettigrew betrayed us. If so, then our son is to go to Sirius Black or the Longbottoms. If he is not placed with either of them and is instead placed with the Dursleys, then the diarrhea/constipation curse will be placed on the person who placed Harry there upon the reading of this line. The curse will last for three months with no way to break it.


Hogwarts - Headmaster's Office

Albus Dumbledore was enjoying his afternoon, sucking on a lemon drop, when all of a sudden, his bowels start to clench up in constipation, but it also feels like he has diarrhea as well.

"Oh, cr... " he starts to say, before an immense wave of pain hits him from the sphincter. The headmaster headed to the bathroom, and almost makes it. Key word being, almost.

Albus Dumbledore is in for a lousy three months.


Back to the will

Also, if he was placed with the Dursleys and is 14, or close enough to it, Harry is to sign the enclosed emancipation papers, thus granting him adulthood and access to all the Potter vaults, as well as his mother's vault. Son, what this means is, when it comes to money, whoever they say the richest person in the world is, they'll have absolutely nothing on you. You also have a lot of properties, as well as stocks in businesses all over the world.

Now to our friends. To Remus Lupin - Sorry about not trusting you. We blame the rat. To make sure your taken care of, we leave you with your own vault with 10,000,000 galleons inside, as well as the ownership of the cabin by the lake you like up in Northern Scotland. Enjoy it, buddy. You deserve it, and please get some new robes.

To Sirius Black - We really weren't sure what to leave you, since you don't need the money, so we decided to leave you with Marauder Manor. Have fun, Padfoot, and keep our kid safe. Harry, your mother wants to talk to you now.

Harry, while I was growing up, I got addicted to a sci-fi show that was, and probably still is, very popular. No, I'm not talking about Star Trek. I got hooked on Doctor Who. During my third year, after reading about portkeys and time turners, I got to thinking. What if there was some way to make a magical TARDIS. It would have to be a mix of both magic and muggle technology to work the way is should. The only problem was that at the time, muggle technology wasn't ideal for what I wanted. I drew up some plans, and kept updating them as the years passed by. I started on the framework for the TARDIS the year before you were born, but had to store it when we went into hiding. It and my plans are in my vault. If you can complete it, I feel it would be a valuable tool for you, however you use it.

Harry, know that we love you, and wish we could be with you. Enjoy life, and don't let Voldemort get you down.

Signed,

James and Lily Potter'

Harry sniffed as he read the will. He felt as though some of his cares were washed away as he read his parent's writing. Then he perked up. His mother was working on a magical TARDIS?! This he just had to see.

"Rotnose, please send a letter to Remus Lupin, informing him about the will if he hasn't seen it already. Also, I would like to sign those emancipation papers, please." Rotnose nodded. "Griphook, after I sign the papers, I would like to go down to my mother's vault."

"Of course, Mr. Potter," said Griphook.

"Please, just call me Harry. All my friends do, and I consider you my friend," said Harry as he was handed the papers.

"Thank you, Harry. You honor me with your friendship, so I will honor you with the same," said Griphook with a bow.

Signing the papers, Harry felt the magical trace leave him as he became an emancipated minor. Harry made a copy of the will to be sent to Madam Bones, asking if Sirius ever had a trial and if not, would this be able to help prove his innocense, shook Rotnose's hand, then left with Griphook to his mother's vault.

Entering the vault, Harry and Griphook looked around and saw the framework for the magical TARDIS, as well as a lot of metal and a filing cabinet.

Mum's plans must be in there, thought Harry. Harry opened the top drawer and pulled out the main schematics.

Griphook looked at the plans Harry held in his hands. "You know, the goblin corp of engineers would be able to help you with all this," he said. "They understand both muggle technology and magic, especially current technology."

"How much will it cost me to hire them?" asked Harry.

"If they move right along, and use state-of-the-art tech, they might have the TARDIS ready in a month, though it will cost you 50,000 galleons, including parts and labor," said Griphook. "We also might need to bring in someone from the Department of Mysteries to help with the spells and charms."

Harry nodded. "Let's talk with the head engineer and find out what all we need to do and get. I want to get this off the ground before my birthday."


One month later - July 25th

"Where could Harry be? It's not like him to disappear for a month without writing to us," said Hermione, who was visiting the Weasleys at The Burrow.

"I dunno, Hermione," said Ron. "All I know is that we really messed up our friendship with Harry, and I for one intend to fix it."

Bill, the eldest Weasley sibling, entered the kitchen.

"Were you talking about Harry? I saw him at the bank when I checked in from that tomb excavation I was on. He and a lot of the goblins from the corp of engineers have been going back and forth from the vault caverns in a major hurry. I'm wondering if Harry asked them to build something for him."

Just then a high squealing and grinding sound was heard coming from outside.

"What in the world is that noise?" asked Ron, as he got up from the chair he was in.

"I don't know, but it sounds familiar," said Hermione. She, Ron, and Bill left the kitchen and headed outside, followed shortly by Charlie, Fred, George, and Ginny.

Out on the lawn, the Weasleys and Hermione saw IT. IT was a large blue phone box that had the words 'Police in the Box' written above the door.

"No way," said Hermione. "There is no way this exists." The door on the box opens up and out pops a familiar head.

"Oh, but it does, Hermione," said Harry happily. "My mum designed it, and with the goblins help, I built it. Come on in!" Harry ducked back inside, and Hermione and the Weasleys followed.

Inside they encountered a room far larger than the box showed. In the center of the room was a weird console with flashing buttons, dials and switches. In the center was a long tube with some blue doo-dad running up and down it.

Hermione was the first to speak. "Harry, there is no way that this can work. When I had the time turner, I was still limited to a one-way trip."

"Then this is why I'm glad my mum was the smartest witch ever," said Harry. "She designed all the spells used on this ship, including a temporal integration field ward, so we can travel anywhere in time without mucking up the timeline, as we would become a part of it."

"So can we go to other planets, as well?" asked Hermione.

"That's going to have to wait until I go forward in time a few years," said Harry. "There I can upgrade the TARDIS and get the galactic maps I need. Right now was just the test of the site-to-site transportation."

"Don't you mean our trip, Harry?" asked Ron. "We're going with you."

"Are you going to report this to Dumbledore?" asked Harry sternly.

"Nope. I sent him a letter saying that I'm no longer going to risk my friendship with you," said Ron.

"Even if something comes up that would drag me back into the spotlight but in the end screw me over even worse?"

Ron thought it over. "Not even then. You don't do stuff like that willingly."

"Kicking and screaming, yes," said Fred.

"But not willingly," said George with a smile.

"So, how does this all work?" asked Bill.

"You must be Bill, right?" Bill nodded. "Mum managed to reverse-engineer a time turner. She figured out the runic sequence needed to travel in either direction, as well as how to portkey to different locations, especially through time. Finding a power source was tough, though."

"What does it run on?" asked Ginny.

"A mystic lodestone," replied Harry.

"WHAT?!"

"Yep. And with all the spells on here to make it space worthy, I can go all the way back to when the Earth began straight to the end. I can even put us into orbit," said Harry with a huge grin.

"Well, at least we know you won't ever run out of power, especially with all the technology you have in here," said Hermione.

"That reminds me. Hermione, same question I asked Ron," said Harry.

"Will you keep me from going with you?" asked Hermione.

"Only if you're still spying for him."

"Then I'll just have to tell him I quit. Back in a moment." Hermione rushed out to write her resignation letter.

To the others, Harry said, "Alright, who wants to go with me?" Every Weasley raised their hands. "Okay, go and pack a few clothes. I have a laundry area on here, so you don't need to bring much. Have Hermione pack some things, as well, and tell her she may bring one, repeat, one book. We won't be gone that long."

While the others were packing, and Hermione was agonizing over having to choose just one book, Harry was using the magical temporal scanner his mum designed to find a point in time when he could find what he needed.

Hmm, 2275 seems to be the best time, thought Harry. All the parts I need, as well as those stellar cartography charts. All I need now is a sonic screwdriver and I can truly be the Doctor. I wonder where I can get one?

Harry heard a knock on the door. He wondered why they would be knocking, then remembered that the door automatically locks when it closes and needs the key when outside.

Harry opened the door for his friends. "Sorry about that. I forgot about the automatic lock."

"That's okay, and it's a good safety feature to have," said Hermione. "So, which when are we going to?"

"2275. Everything I need is there. Oh, and don't worry about trying to install the parts we're going to get, the goblin engineers made it self-upgrading. We just need to get the stuff."

Harry loaded up the temporal and spacial co-ordinates into the console. "Okay, co-ordinates locked, stabilizers on, time rotor charged and ready, all I need to do now is release the hand brake." With that, Harry threw down the switch.

Outside, Molly Weasley had just got back from shopping, along with Arthur and Percy, who came home for lunch, when they saw the strangest sight. A blue box which was on their lawn was phasing in and out of sight, while emitting a loud squeaking and grinding noise. Wondering what it was, the three entered the house, where Molly found a note from the kids.

'Mum,

Harry has this amazing device that allows us to travel anywhere on this planet and any when in time. We're going with him to keep him company and to keep him out of trouble. We should be back in a few moments, but from our perspective it might be longer.

Bill'

Molly re-read the note twice, handed it to her husband, and then fainted.

Arthur read the note, and then said, "Lucky devils."


Inside the TARDIS, the ride was shaky, but stabile.

"Does this thing have to vibrate so much?" asked Ron, who was looking a bit green.

"Sorry about the vibration, the stabilizer still isn't quite in sync with the rest of the TARDIS," said Harry just before the vibrations stopped. "Oh, good. We must be here. "Okay, wands hidden but at the ready." The others nodded as Harry went over and opened the door.

What they saw beyond was incredible, to say the least. People, creatures, and every other type of being that could be imagined, and some that couldn't, were walking and flying about. Flying cars and busses moved along high overhead, weaving through the huge skyscrapers.

"Oh, Merlin," whispered the twins.

"We're actually in the future," said Ron in awe.

"Welcome to New York, New York, in the year 2275," said Harry. "This is the number 1 trading center for the entire planet, according to the temporal scanner. We'll have to keep the wands hidden, as magic, though now known to the muggles, is at least frowned upon here on the upper level."

"Wait, upper level?" asked Charlie.

"Yeah, this version of New York is about 3500 feet above the ground. The original city is still there, and is called the lower level. All the low-income families and magic users are down there, as the electrical field generated by the upper city now overloads magic, instead of the other way around. Now that the explanation is over with, let's go shopping."

"With what?" asked Bill. "None of us brought any money."

"Don't worry, I left instructions with the goblins at Gringotts. All I have to do is show them my family ring and say the password. My accounts then become available to me. When we go to the past, I'll have to set it up with the goblins back then, with the password feature put on hold when I become born until the TARDIS is built."

"Now that is just the kind of headaches time travel tends to form," said Hermione.


After getting into his accounts and activated his debit card, Harry and the others went to work buying the parts needed to finish off the TARDIS, though the twins talked Harry into buying something extra; a robotic talking dog named K-9.

"Why did you talk me into getting this robot again?" asked Harry.

"It just felt like it belonged,' said Fred.

Harry just looked at the first born twin. "I worry about you sometimes."

After getting the new equipment unpackaged and installed, (all they had to do was touch whatever item they had to the area Harry directed them to and it was absorbed by the TARDIS), the time ship was finally complete.

"Well, now that we're finished, what shall we do now?" asked Harry.

"Let's go see Hogwarts as it was being built and meet the founders!" squeaked Hermione.

"Somehow I knew she would say that," said Ron in a deadpanned voice.

Harry and the others just laughed as the Boy-Who-Lived scanned the time stream and found the time he wanted. Setting the co-ordinates, Harry launched them through time to where Hogwarts is being built, in the year 975 A.D. However, they never knew they were being watched.


"So, who were they, Doctor?" asked a blonde female human.

"I don't know, Rose," said the Doctor. "All I know is that they weren't from this time, and although they were using something that looked like the TARDIS, it isn't, as what they had was powered by something completely different. I just can't remember where I felt it before."

"I heard them mention a place called Gringotts," said Rose. "Would that help you?"

"Gringotts?! That's a bank run by gob... " started the Doctor, as his eyes widened in realization. "...lins! Of course, our mysterious time travelers are wizards and witches! They must have figured out the runic sequence needed to travel in time! It must have been a muggleborn who watched the show!"

"Show?! What show?" asked an increasingly annoyed Rose.

"Oh, I set up a sci-fi show on the BBC to counteract all the rumors that get spread around about me and my companions, especially when we appear out of no-where," said the Doctor. "Currently I'm being played by someone called David Tennant, who for some reason looks like a wizard named Barty Crouch, Jr."

"So," said Rose, sliding up to the Doctor with a slight twitch in her left eye, "who plays me on the show?"

"A young actress named Billie Piper, though she doesn't have the same energy that you have."

"Damn, you gave the good answer," said Rose, hanging her head.

"Anyway, I have a lock on where they're going. Setting co-ordinates for the year 975 A.D. Location: the future site of Hogwarts School of Witchcraft and Wizardry."

"Wait, when you said that the travelers were wizards and witches, I thought you were joking," said Rose.

"Nope. Wizards and witches are the only ones outside of, well, me, who have the power needed to time travel. They live longer than normal humans, though they can't regenerate. Here we go!" With that, the Doctor threw the hand brake and launched his TARDIS after the wizards.


Two men and two women were sitting in a tent, going over the plans for the school they were going to build. A school for wizards and witches to learn magic.

"Well, everything looks sound. Now all we need is to get funding from King Frederic," said Godric Gryffindor.

"I hate dealing with that miser," said Salazar Slytherin. "He penny pinches everything."

"Well, I don't know of another way to get the money needed to build the school," said Rowena Ravenclaw.

"Maybe we'll be lucky and he'll be in a generous mood," said Helga Hufflepuff wistfully.

The other three just shook their heads sadly.

Just then, there was a great cacophony of noise coming from outside the tent. The four who would become the founders of Hogwarts looked out the tent flap in great surprise. Some ten feet from the tent, two large blue boxes were appearing from out of thin air, each emitting a high squeaking and grinding noise.

"I wonder just where these boxes came from?" asked Godric.

"More like when," said Rowena, as a door opened on both boxes and out of both trooped a group of people. All were dressed in weird garments.

Hermione looked around and saw another TARDIS next to theirs. He then saw who came out of the other one.

"Harry, I think we have a problem," said Hermione.

"What is it?" asked Harry.

"That man who came from the other TARDIS? He's the Doctor."