In this story thing will happen that already happen in the Show/Book. I don't care if my version is different. Sorry for any spelling problems. I don't own any of this. Enjoy.

A Clone at Hogwarts

Chapter 1 Dumbledore's call for help.

Happens in book 5 of Harry Potter and in season 8 of Stargate SG1.

In London at number 12, Grimmauld sat Albus Dumbledore looking down though his half moon spectacles at the cup of tea that was sitting in front of him. It had been a long week, firstly, with Harry's hearing they had luckily that won that battle, secondly, the war with Voldermort was not going well, and thirdly was how to keep Harry safe. Just as Dumbledore was half asleep, Bill burst through the door followed by a tall wizard wearing black robes and a hood covering his face. Dumbledore stood up so fast that his chair flew back against the wall. "Bill, what is going on?" Asked a wide-eyed Dumbledore to his friend standing in front of him.

"I am sorry to disturb, you but I believe that my friend here may have the answer to one of our problems." Stated Bill.

Deep in Cheyenne Mountain General Jack O'Neill, Lt. Col. Sam Carter, Dr. Daniel Jackson, and Teal'c just sat down at the large oak table in the middle of the Stargate Command. It was the last day that O'Neill would be commanding the base. Sudden a man wearing a long silver robe appeared in the room without a normal flash of light. "Who are you?" asked General O'Neill as his top team stood up to face the unknown person.

"Please don't worry," said the man "I come only to get your help and to save millions of lives. I am Albus Dumbledore, headmaster of Hogwarts School of Witchcraft and Wizardry."

When he said that Carter replied, "That is not possible, Magic is not real." Just as soon as she had said that Dumbledore pulled out his wand and turned an empty chair into a dog and back again. Then Dumbledore explained everything about the wizard world, Harry potter, and Voldermort.

"Well that sounds bad" said Jack "but what can we do about it. We have our own enemies?"

"That I an aware, and I am also aware that General O'Neill has a clone about Harry's age."

In an apartment about 20 miles from the SCG sat the clone of Jack O'Neill; he was busy killing some aliens in Halo 2. Suddenly the phone rang and Jack put the game on pause. "This is O'Neill," said Mini Jack into the phone.

"Hello, mini me" said Jack back at the SGC.

"Well, hello pops" said Younger Jack "What can I do for you, old man?"

"How would you like to go on a mission?" said Older Jack. When younger Jack heard that his eyes got wide.

"Hell yeah"

"Ok," said older Jack "Met me top side in 30 minutes." Twenty-five minutes latter Jack and Jack walked into the meeting room of the SGC.

There sat SG-1 and Dumbledore and Jack sat down in the general's chair. Cool, I'm the Man thought Jack as he sat down across the table from his older self. "Ok, listen up Mini Me," said Jack "because this is going to be hard to believe."

"Jack, we have seen many strange things what can't I believe?" said Jack to his older self.

"Well, this man here." said Jack as he pointed to Dumbledore ", is a wizard and he wants you to go under cover as a wizard and guard a wizard teen from being killed by an evil wizard and the icing on the cake is it will all happen at a school for witches and wizards."

Little Jack shook his head. "Well, I guess I was wrong. I can't believe that." Dumbledore took out his wand and again turned the chair into a dog and back again. "Ok, now I believe it." said Jack. That is when Dumbledore told little Jack the story of Harry Potter, Voldermort, and the wizard world. "Ok, I have three questions." said Little Jack to Dumbledore "How will I be able to see this place if I am a muggle, as you call me and second how will I be able to do magic?"

Dumbledore reached down into his robe and pulled out a military style watch and a wand. "This watch" said Dumbledore "has a magical stone in it that will let you fool the magical barriers to think that you are a wizard and it will also let any electrical object that you are touching to work in the magic of Hogwarts." Then Dumbledore held up the wand. "This wand will draw magic from Hogwarts itself, letting do any spell by just thinking about it."

"Great," said Jack, then he noticed that everyone was looking at him, "What?"

"You said you had three questions O'Neill," said Teal'c.

"Oh yeah," said younger Jack with a dumb look on his face "can I bring my dog?"

Suddenly older Jack snapped awake. "You have a dog?"

"Yeah a German Shepard named Sparky," said younger Jack to older Jack.

"Really? I was thinking along the line of a lab myself." Said Older Jack

"Jack's," said Sam sensing that they were getting off track.

"Normally, dogs are not allowed at Hogwarts," said Dumbledore "However, this is not a normal situation, so yes you may bring him." Little Jack smiled then suddenly Daniel spoke up.

"Excuse me, Professor Dumbledore but how is Jack going to guard Harry? It's not like he can carry an armory around with him?"

Dumbledore smiled "He can carry an armory around with him." That his when Dumbledore took out his wand and with a flick of it a trunk appeared out of nowhere. "This is a magical trunk that can hold anything you may need."

"Ok," said Little Jack. "Now that we have that satisfied lets go to the armory so that I can get some new toys."

Half an hour later and, half the armory gone,"Well that should be all?" said Little Jack as he placed two more P90's in the magical trunk.

"What that's all?" said Older Jack "are you sure you don't need a nuclear warhead to go with it?"

"Well if you want to give me one" said Jack to Jack.

"Get out of here before I spank you." said Older Jack.

"I'll like to see you try old man." said Little Jack. The two of them stared at each other then Dumbledore stepped in.

"Jack we, should be going. We still have to get your things at your house, and Sparky" Jack nodded "Please, take my hand." Slowly Jack reached and took Dumbledore's hand. The moment he touched Dumbledore's hand there he was at his apartment. After about 10 minutes he was ready and they departed again, but this time it was to the wizard world. A few seconds they appeared in a kitchen.

"Where are we?" asked Jack as he let go of Dumbledore's hand.

"We are at the Order of the Phoenix's headquarters in London," said Dumbledore, "Here your mission begins. Harry and his friends should be around here trying to clean up the house." Jack looked up at the clock it was about 11 in the morning. "Remember, you are the son of the newest order member Jack O'Neill senior" said Dumbledore. "You are going into your 5th year at Hogwarts and most important do not reveal your secret to anyone, only a man named Charlie Weasley and myself know who you really are. Well, I think that's all the other members know that you are coming." Jack nodded as Dumbledore turned to walk out of the kitchen. "O, one last thing" said Dumbledore "Always carry some type of light weapons but keep them well hidden." With that Dumbledore disappeared out the door.

"Well boy," said Jack as he looked down at his dog "what did we get ourselves into this time?"