Disclaimer: I own neither Doctor Who or Harry Potter. They belong to their respective owners.
A/N: This story is an AU for both series. I don't actually have a timeline for anything as this just came to me one day and depending on the response I may write a sequel or prequel or both one day… That's a lie actually. I know I'm going to do both at some point. Constructive criticism is always welcome.
Also this is not beta'd or Brit-picked (if that is a phrase that I can use without offending anyone) so if you see anything that I missed that is glaringly obvious, let me know and I will fix it! No questions asked.
PAIRINGS: For this story, for clarification, the pairings are: Doctor/No one, Master/No one, Rose/Jack. As you read, you will know why it needed further clarification.
P.S.: Thanks to Lady of the Shards for her help! This would probably still be sitting on my laptop as I tried hopelessly to think of a title if not for her.
Chapter One
Harry had just sat down for breakfast on the morning of the Third Task along with Hermione and Ron when the owls arrived with the post. Harry was feeling well prepared for the task, but he would look up a few more spells in the library while everyone was taking their exams, just in case especially since he didn't have anything better to do. He looked up from his breakfast as an owl flew past him and saw that Hermione had just taken her Daily Prophet from the owl. He had just seen her glance at the front page headline which caused her eyes to go wide, when there was a sudden noise heard in the Great Hall.
Harry recognized the sound at once and his eyes went even wider than Hermione's. He never came here unless Harry did something death defying, and even then he just went to the Hospital Wing, and never where anyone could see her like this. He preferred to keep her safe and away from prying eyes, unless –
Unless he wasn't driving. Oh no. It was him. It had to be, just to get under his skin.
But why were they here? Today? Harry was confused and a little worried; almost nine out of ten times there was trouble wherever he showed up.
"What's that noise?" asked a first year girl that was close by.
"I've never heard anything like it," said a second year girl.
The students were starting to panic when the professors, headmaster and visiting headmaster and headmistress got control of their students and they calmed down but were still nervously looking around trying to pinpoint where the sound was coming from, some students gripping their wands.
The professors, headmasters and headmistress were standing up from their seats and looking around as well to see if they could tell where the sound was coming from, as the sound was echoing around the Hall, their wands out, ready to point and defend if necessary.
Ron and Hermione, Prophet momentarily forgotten, looked at Harry, who surprisingly looked as if he was trying to sink down low in his seat and disappear.
"Harry?" they questioned, sounding confused. Harry was normally the first person to seek out something that could be considered mysterious and try to solve it.
Harry just shook his head. This was so embarrassing. He did like to enter a room with flare though. They all did, but that was just a trait they picked up from him, Harry was sure.
"Harry? Do you know what that sound is?" asked Hermione, sounding serious.
"Yeah," said Harry and he buried his head in his arm refusing to explain more as a blue police telephone box appeared right in front of the Head Table.
"Oh Merlin," said Hermione, sounding breathless.
"What is that?" asked Ron, sounding shocked as this didn't happen every day, even for someone who had grown up around magic.
Several other students said and asked the same thing as all the professors and the visiting headmaster and headmistress pointed their wands at the box, Professor Dumbledore slightly in front of the line that was unintentionally formed in front of the box.
"Harry?" asked Hermione again, looking at him but was shocked at what she saw.
Harry was no longer burying his head nor was he looking at his friends. He was looking at the box with a look that was a cross between fondness and exasperation, a look that was not on any other face in the room. Hermione narrowed her eyes slightly at him. Harry never did tell her and Ron what he did on his vacations when he didn't see them and if it had something to do with this box…
Suddenly the door opened and four people stepped out.
"How did they all fit inside?" was Hermione's first question at once, distracted from her previous thought about Harry and him knowing anything about the police box.
"It's bigger on the inside," Harry mumbled though he wondered if that really should have been her first question.
Hermione's gaze sharpened at him, thoughts immediately focused back where she thought they should be, but she couldn't let him know.
"What?" she asked.
"What?" he asked confused.
"What do you mean 'it's bigger on the inside?' Like the tents for the Quidditch World Cup? How do you know?" asked Hermione, not forgetting. She would corner him later before the Task and ask him then if she doesn't find out sooner.
Harry looked at her like she had grown another head (not a totally uncommon thing for him) and said, "No, not like the Quidditch World Cup but similar in mindset, if that's how you want to think about it. You have to see it for yourself to appreciate it."
"Harry," started Hermione, changing her mind about waiting to get answers, she's allowed as is her female right, but Ron cut her off with a "Be quiet, Hermione, they're talking."
"You're not allowed to drive! It's MY TARDIS!" said the man with the brown pinstripe suit and unruly hair.
"Like you've ever been able to control what I've done?" questioned the blond haired man in a plain black suit.
"Rose, tell him! Tell him, he can't drive my TARDIS," said the man.
The only woman in the group, Rose, turned to the man in the black suit and said, very plainly, "You can't drive the Doctor's TARDIS."
"Thank you!" said the man, the Doctor, as if he just won some huge battle.
The man in the plain black suit just rolled his eyes and said, "I'll stop driving your TARDIS when I stop trying to take over the universe."
The other man who had been silent up until then and was wearing what looked like a greatcoat from World War Two, scoffed and said, "That will never happen, Master."
The man, Master, grinned, slightly crazily to several students and professors alike, and said, "Exactly, Jack, exactly!"
The Doctor pouted at that slightly and said, "At least I park better and inconspicuously, not in the middle of what looks like breakfast, the most important meal of the day by the way, in front of hundreds of children and professors."
"Of course, Doctor," said the Master, Rose and Jack, the latter two immediately grimacing at having agreed with the Master on something.
"Wait, what?" asked Jack, looking around along with Rose.
"Doctor, they're pointing wands at us," said Rose.
"Thank you for pointing out the obvious," sneered the Master.
"Don't talk to her that way," said the Doctor, scowling at the Master who stuck his tongue out at the Doctor.
"Did you at least get the time period right?" asked Jack, sounding slightly panicked and ignoring the Doctor and Master's antics with what looked like practiced ease.
All three of them looked at the Master, the Doctor not wanting to confirm for the Master, and he said at once, sounding indignant and as if he had never been more insulted in his entire life, "Yes!"
Professor Dumbledore stepped forward then, his wand slightly lowered but still raised high enough that he could cast a spell if needed at the four strangers, just because the Doctor had been to the Hospital Wing didn't mean he had actually met the headmaster during any of his visits, and asked, "I'm curious. Who are you and how did you get in here with your… box?"
"Box?" asked the Doctor and Master, both sounding scandalized.
"Of course that's what you focus on," said Jack, rolling his eyes while Rose just patted the Doctor's arm.
"Is it not a box? And could you answer the 'who you are' part of the question before we go any further, please," said Dumbledore, sounding like he was just asking the people in front of him for the time.
"Of course it's not a box! I'm the Doctor," said the Doctor at once.
"I'm the Master, no relation," said the Master to everyone's confusion.
"When have you ever been confused as being related? I'm Rose Tyler, by the way," said Rose, looking mostly at the Doctor and Master.
"You'd be surprise," mumbled the Doctor and Master together and if she wasn't much mistaken, she would have thought they were embarrassed.
"Hello, Captain Jack Harkness," said Jack, with a little grin and a wave directed at Dumbledore who blinked in slight surprise.
"Stop it," said all three of them at once with a pointed look and Rose shoved a sharp elbow in his ribs.
"Can I never say hello to anyone?" asked Jack, rolling his eyes.
"If you didn't make 'hello' sound like a pick-up line, then yes you could say hello to anyone like a normal person," said the Doctor as if he were repeating that for the one hundredth time while Rose and the Master just looked at him as if to remind him of something.
"What is it then if it's not a box? Nice to meet you Doctor, Master, Rose Tyler, Captain Jack Harkness, I'm Professor Albus Dumbledore. What are you doing here?" replied Dumbledore.
"It's a TARDIS - Time and Relative Dimension in Space," replied the Master as if it were common knowledge.
"Nice to meet you, Professor Dumbledore," said Jack with one of his charming grins. Harry looked absolutely mortified and a little bit sick that Jack was keeping the flirting up with his headmaster and he wasn't the only one.
"Stop it, Jack. We were invited," said Rose, giving Jack a harder elbow in the rib than before. Harry was just a tad pleased with the pained grunt that Jack made after the mortification he was just put through. He was going to need years of therapy after this. Years and years. He just knew it.
"We're here for Harry," said the Doctor cheerfully and he started to look around the room as if to look for Harry as did the other three. Harry immediately started to sink down lower in his seat again.
Dumbledore, ignoring everything else for the moment, although he was flattered to be flirted with at his age and confused about what exactly a 'TARDIS' was and what it did, said "Harry Potter?"
"Yup," all four of them said at once.
"Of course. So typical," sneered Professor Snape, lowering his wand and half-tempted to leave the Hall and go to his room.
Everyone turned to look at Harry at once who was sunk low in his seat, face red.
Following the direction of everyone's gaze and head turn, the four newcomers were able to spot Harry's head, Jack and Rose exchanging amused glances when they realized what Harry was trying to do while the Doctor and Master remained oblivious to Harry's plight.
"Harry!" called the Doctor joyfully.
Harry, still embarrassed but unable to resist the Doctor's joy, looked up, grinned slightly and said one word that shocked many, "Dad."
"Dad?" questioned many, shocked. His dad was dead, wasn't he? Why would he call this Doctor person Dad? Several students exchanged a look with each other getting ready to spread the new, juicy gossip they were about to get.
Harry stood up, ignoring everyone's question and incredulous stares, and walked quickly over to the Doctor, who met him halfway, and hugged him.
Dumbledore had lowered his wand in shock and he wasn't the only one to do so. This was who Harry had been with for years and who he goes to for every vacation.
"What are you doing here?" asked Harry, pulling away slightly.
"Were you not listening? We were invited," said the Doctor, grinning.
"You were invited?" repeated Harry.
"Is there an echo, brat? We were invited to watch the last Task tonight," said the Master, sounding bored. Many students and staff thought with that one sentence he would get along great with Professor Snape and even Professor Snape himself was thinking it. Maybe he wouldn't leave the Hall just yet.
Harry ignored the name he was called by the Master with practiced ease and said, "Well, how was I suppose to know? You guys usually give me a heads up when you come and you never come like this." He finished by gesturing around the Hall.
"Ignore the Master, Harry. He's just in a mood because your dad just recently beat him again and you know how he gets," said Rose.
With that sentence from the woman, Snape was starting to rethink his previous thought. He didn't need to get involved with another maniac who wants to take over the world.
"Ah, I understand, Aunt Rose," said Harry going over to give her a hug in greeting as well.
Several students were looking in between the Doctor and Master trying to see how the Doctor could beat the Master. They couldn't see it yet. In fact, they couldn't see the Master succeed in trying to take over the world either.
"Don't I get a hug as well?" asked Jack.
"No, you traumatized me when you flirted with the headmaster, Uncle Jack," said Harry sounding serious although he went over and gave him a hug. "Seriously, stop doing that."
Jack just laughed and threw a wink in everyone's direction which caused several girls to blush as well as several boys.
"He said stop it, Jack," said the Doctor with an amused look.
"Can't help myself, Doc," said Jack. Harry let out a groan.
"You better learn to curve some of those traits," said Rose, only loud enough for Jack and Harry, who was still being hugged by Jack, to hear.
"All part of the charm, Rose," said Jack giving her a wink as well, along with a grin.
"Oh Merlin," said Harry into Jack's coat, "You're flirting with each other, aren't you? I don't need to hear this! Let me go!" He tried half-heartedly to pull away.
Jack and Rose just laughed at him and Jack hugged him just that bit tighter.
"Brat," said the Master.
After he successfully managed to pull away from the still laughing Jack, Harry stared at the Master and said, after a moment, "Father."
There were several sounds of people choking on either a drink or their spit around the room at that and even the professors, who were normally unflappable, were staring in shock at that. How was this entire scenario possible?
The five people causing the shock though just ignored them. The Master held out his arms for a hug but Harry stayed back for a moment though the Master looked undisturbed, as if he were used to it.
Harry turned to the Doctor and asked, "Is he clean?" He couldn't really afford to be kidnapped today.
The Doctor pulled something out of his pocket, a metal wand type of thing to everyone in the Hall, except those who knew what it was, which caused some to tense, and ran it, with it making a buzzing sound, over the Master. He checked the readings and said, "He's clean."
Harry walked over to him and gave him a hug as well before asking, "Are you guys from my linear time, past or future?"
"Linear," said the Master.
"I miss anything interesting?" asked Harry.
Before anyone could explain anything though, Dumbledore interrupted again and said, "Excuse me, Doctor," he had put his wand away by now as had everyone else, even if they were confused beyond belief, "What is that?" He nodded to the metal wand type of thing still in the Doctor's hand.
"This?" asked the Doctor, holding up and waving his sonic screwdriver around which caused several members of the staff and students to flinch slightly or make an aborted move towards their own wand again. Jack had to wonder if the Doctor knew that would be their reaction and did it on purpose. Looking at his glinting eyes, the answer was obvious.
"No Doctor, he wants to know what's in your other hand," said the Master, still hugging Harry.
"Oi! Let go of my son, now. Who knows what creepy plan you have going on in your head for this situation right now. Dumbledore – you mind if I call you Dumbledore? No? Good. Dumbledore, this is my sonic screwdriver," said the Doctor as the Master did what he was told, grumbling slightly that Harry was his son, too, while Harry just smiled at them. He had missed them all while he was stuck in school though he was use to it after four years now.
"Sonic screwdriver?" questioned Dumbledore while several students let out snorts of laughter.
"You wave around a twig from my perspective," said the Doctor, raising his eyebrow and defending his sonic screwdriver, causing those who snorted to frown, slightly insulted.
"Touché. To each their own then. What did Mr. Potter mean about you being from his linear time, past or future?" asked Dumbledore curiously as was everyone else.
"Well, I guess you could say, we're time travelers," said the Doctor, rubbing his ear, self-consciously.
"Guess you could say?" questioned Rose to Jack.
"Guess he doesn't want to admit it and look like he's crazy," said Jack.
"Too late for that," said Harry who went to stand by them, their flirting done. Rose and Jack snorted while the Doctor sent a glare in their direction.
"Time travelers?" questioned Dumbledore, sounding skeptical, a first thought Harry. He thought Dumbledore would believe anything but then again these were dangerous times they were living in as everyone was constantly reminding him.
"Yup! And I can prove it! Rose, Jack stay here with Harry. I'll be back in fifteen seconds," said the Doctor turning towards his TARDIS and going inside before any of the professors could stop him.
"I'm driving," said the Master as he followed the Doctor inside and the Doctor's, "Are not," was heard before the door was shut.
A second later the TARDIS disappeared and everyone was left staring at the space where it was.
"You want to bet it's twenty before he gets back," said Jack.
"No, he wants to spend time with Harry, they both do even if the Master will never admit it out loud. They'll be back in fifteen," said Rose, nodding her head.
"Where did he go?" asked Professor McGonagall, sounding breathless, something Harry had never experienced before and he wasn't sure he liked. Females, in general, had a tendency to become attracted to his dad once they found out what he could do and had an adventure with him. He hoped his professor wasn't one of them. That would definitely be awkward.
Jack shrugged and said, "Probably somewhere to Professor Dumbledore's past. It's the easiest to prove to him that way."
Dumbledore paled as he suddenly remembered what the two strange men had overheard last night and the talk that followed along with the weird parting statement about time travel, well that part made sense now.
A second later the TARDIS was materializing and the Doctor and Master stepped out, both looking at Dumbledore with calculating looks.
"You really believe that?" asked the Doctor to everyone's confusion.
"I do," said Dumbledore.
The Master scoffed and said, "I don't believe in any of it and neither should you, Doctor, not after what happened the last time."
The Doctor had an unreadable look in his eyes as he looked at Dumbledore, then the Master before he looked at Harry who looked back at him in confusion. Rose slipped her hand in to the Doctor's and gave it a squeeze and he returned it tightly.
"What's the matter?" asked Jack, not liking the look on the Doctor's face. There was never anything good that followed after a look like that.
The Doctor didn't say anything for a long moment, then he grinned and said, "Nothing! Just proving time travel! Right Dumbledore?"
No one was convinced that nothing was the matter but they let it slide for the moment more curious about Dumbledore's answer than what was wrong with a strange man except for Jack, Rose and Harry.
"You are absolutely correct, Doctor. How did you manage that though?" asked Dumbledore.
"Oh, it's a secret. We can't say but why would you want to ruin the special effect of time travel by knowing how it's done? Bit silly, if you ask me," said the Doctor.
"I'm sorry," interrupted Professor Snape. "But if you can travel in time, how did you get an invitation to be here for the Third Task."
"We sent them out magically to the families not through owl post," explained Professor McGonagall before anyone else could. "It would explain how it reached them, wherever they were."
"Yeah let's go with that," said the Doctor. Then he continued after a moment and said, "I wondered how it got to the year 3022 during the Master's attempted take over of Earth yet again."
Everyone looked at the Master cautiously now.
That settled Snape's thoughts. He was staying far away from this Master person, especially since he thought he was Potter's father. Delusional and wanting to take over the world – Snape didn't need another master, no pun intended on the man's name, the black mark on his left arm was reminder enough of the first one. He should leave this Hall before he got hooked into something he didn't want to do and that was exactly what he did. He had classes to prepare for anyway. He didn't need to hear anymore of this absurdness. Crazy might be catchy.
Dumbledore, still sounding pleasant even as he heard his Potions Master leave, said, "I'm sorry. I think my hearing is going in my old age, but did you just say the Master was trying to take over the Earth?"
"Yes, I did. It was happening in the year 3022. I was surprised. He usually sticks to present time, the present time for me, I mean, the time I like to go back to for more than one visit, you know. Right now the present time for me is the early 2000s, not that far in the future from you," said the Doctor sounding thoughtful while the Master grinned, slightly manically and waved at everyone as if he were pleased to see them, alive and healthy.
"Doctor," said Rose and Jack. He wasn't helping the situation and he was rambling.
"What? Oh right," said the Doctor, rubbing his ear self-consciously, again.
"How did that go?" asked Harry, sounding curious and hoping there wasn't a lot of death this time. He remembered the last time when he was present. Rose and Jack could have face-palmed. Harry was just like his fathers.
Everyone except the Doctor, Rose and Jack looked at him in shock.
"Well, I had the most brilliant plan this time, Harry. I –" the Master started to explain.
"Don't encourage him, Harry," said the Doctor, sounding like he was scolding someone for having a biscuit before supper. "Let's leave it at I successfully stopped what he had planned with minimal loss as usual."
"Wait a second, Potter is related to and friendly with a villain, for lack of a better word?" asked someone from what Harry knew to be the Ravenclaw table sounding disgusted. "I guess the Prophet was right."
"Villain?" said the Master as if the word didn't do him justice.
"What did the Prophet say this time?" asked Harry but he was looking towards his friends who were studiously ignoring him as he asked the question.
"What's the Prophet?" asked the Doctor, Rose and Jack, sounding confused and concerned at once. Harry didn't mention to them about any Prophet when they would exchange letters and talk and he certainly didn't mention to them about it being a problem.
"And on that note, it's time for everyone to make their way to their classrooms to take their exams. Champions, your families are in the side chamber just over here," said Dumbledore gesturing towards a door, "waiting for you where they were directed to. Doctor? Would you mind moving your TARDIS to a more appropriate place than our dining area?"
"Right you are," said the Doctor as all the students got up and headed either for their classroom, living places for the year or side chamber to greet their families, though they still cast a glance over their shoulders at the group standing in front of the TARDIS. "Harry do you want to come with us while we move?"
"Yeah in a minute though?" asked Harry.
The Doctor just nodded his head and Harry hurried over towards his friends while the Doctor, Master, Rose and Jack waited for him to get back. They watched him have a hurried conversation with his friends, one of his friends hand over a copy of her newspaper somewhat reluctantly, talk some more with them and then his friends left the Hall. Harry came back over slowly with the paper in his hands.
"Okay, are we moving the TARDIS now?" asked Harry.
"One moment," said Dumbledore. "I don't know how this time travel ship of yours works, but Harry has to finish the tournament tonight in his – what did you call it? – linear time. I don't know if you can do this, but you can't take him away for three weeks and then bring him back to this very second, Harry could loose his magic and his life if you tried. Magic is a very fickle thing and it wouldn't have accounted for possible time travel like this. We've guarded against Time-Turners, a device that can only take you hours back in time, to prevent champions from using them but nothing like this though I imagine the consequences would be the same."
The Doctor nodded his head. When it was really important the TARDIS never let him down and she seemed to like Harry more than him anyways especially since Harry grew up on her. She would never let something life threatening happen to him if she could help it and it wouldn't blow a hole in the universe.
Dumbledore nodded back and said, "Then show them around the grounds, Harry, once you've moved the TARDIS. Enjoy your day." And he left them to it.