This chapter focus more on Sasuke than Harry. So far Sasuke and Harry have only just switched places, and haven't really met anyone other than Dumbledore or Kakashi, who explain why they have switched places.

Disclaimer: Don't own... I wouldn't have the stamina to write something as long as the fourth Harry Potter book...

-Chapter Two-

"So you've arrived." With a questioning frown, Sasuke walked over to the strange man.

"Why am I here? What is this place? Where's the rest of my team?" Sasuke asked, trying to sound forceful, and intimidating. He wanted to take control of his situation as soon as possible. Instead he found his confidence waning as the bearded man gave him a stare that was equally intimidating, if not more so. It felt like the man was reading him. It was almost the same where the Third Hokage stared at him when he was reporting his missions.

"You are in Hogwarts Castle, home to many students who are training to become witches and wizards. You must understand that you are not in your own world, Uchiha Sasuke." The man let this information sink in for a second, before continuing. Sasuke was trying to process this information and think of a logical explanation for it. "My name is Albus Dumbledore, and I am the headmaster at this school. For some reason unknown to me, you have been switched with one of my students. I was informed of this and therefore sent for you immediately."

Sasuke was still trying to figure things out. He was in another world. Certainly, even by the short time that he had been there, he could tell things were very different. But what were wizards? He had a vague idea that witches were old scary women who lived deep in the dark patches of the forests, but why would anyone train to be one of those? (A/N I'm just assuming that because they have ninjas, there aren't any stories of witches or wizards in the Naruto world.)

"How do I get back? Where is the link between these worlds?" Although forceful before, Sasuke now sounded, perhaps a little scared.

Dumbledore sighed. "I'm afraid I don't know, Sasuke. Whenever the powers that sent you here deem it time for you to be sent back."

"How do you know my name?" Sasuke queried.

"I was informed of it shortly after you arrived." Dumbledore said in a tone that clearly implicated that to ask any more would result in no less of a vague answer. Dumbledore suddenly stooped down and gathered something from a draw in his desk.

My weapons pack! Sasuke thought. How did he get a hold of that? He reached forward and took it.

"I have seen one of these only once before," Dumbledore began, "as this incident has happened only once before. Understand that in this time you will be posing as the student Harry Potter. You will answer to his name, and you must be able to convince even his closest friends that you are him. Currently Harry has fallen out with his best friend, Ronald Weasly. You will call him Ron. He shares the same room as you, and has bright red hair."

That must be the boy that came to see if I was alright. Sasuke still didn't feel guilty about hurting his hand though. The boys at this school must be wimps.

"There is another thing you must know. At the moment we suspect someone is trying to kill Harry. He's famous for defeating Lord Voldermort. Ever since coming to this school and into the wizarding world, many attempts on his life by Voldermort and his followers have been made."

So they've switched me with someone who's targeted for assassination. Wonderful.

"Harry Potter has been entered into a tournament. This tournament is very dangerous, and could potentially take your life if you're not careful."

As a ninja, Sasuke's daily life consisted of events which could take one's life if you were not careful, and he told Dumbledore so. Smiling a little at the comment, Dumbledore resumed.

"As Harry had already illegally been given a clue as to what the first task of the tournament would be, I shall tell you. Dragons will be involved."

Dragons? Were there even such things? In Sasuke's world there were certainly many dragons as symbols for things. You know, health, the changing of the seasons and the like. They were supposed to be good luck. Why would he fight one of them?

"Now, the western dragons are vicious creatures. They breathe fire. Do you think you will be able to deal with one? I presume you don't know magic." Dumbledore gave Sasuke another long stare. "However, if you are at all similar to the one that came from your world before, you may just be able to manage it. Are you willing to do it?"

"Fight with a dragon?" Sasuke thought about it. If he fought this dragon then perhaps he would be able to be sent back to his own world. Besides, something that breathed fire? Even Sasuke himself could do that. With the usual smirk he wore, he answered. "Sure."

Suddenly, a thought struck him. "Who was the other one from my world?"

Dumbledore looked grim. "It happened a long time ago. He switched with a former student from this school who has long since graduated." And that was all he would say on the subject.

They talked for a while longer. Sasuke learned many things about the wizarding world, and when they were done he still had plenty of questions about it. He had no idea how he would be able to do the class work that the other students performed. How could he learn magic?

"I'm afraid that's something I won't be able to help you with." How was he going to be able to blend in then? The conversation seemed to be coming to a close when Sasuke remembered something.

"Oh, Dumbl-"

"Call me and any other teacher 'Professor' whilst you are here." Like calling people 'sensei' back home, Sasuke supposed.

"Well, Professor, I have a scar, here," He parted his fringe to show, "and it's not mine. Is it Harry's?"

"Yes. It is the mark that Voldermort left on him, when his attempt to kill Harry failed. I have noticed that things are kept in balance when inter-world exchanges are made. Two bodies have been switched. You have your weapons pack, and Harry has his wand. You have Harry's scar. Would Harry have any mark or scar that is yours?"

"My seal!" Sasuke breathed. He put his hand to his shoulder, and pulled at his pajama shirt. He had not felt its presence since he'd been in this world. Lately it had always been slightly aching, enough to keep its presence in the back of his mind at all times. "Can you- is it there?" Sasuke asked, almost frantically.

Dumbledore stood up and came round his desk. He looked to where Sasuke's finger was indicating. There was only pale, unblemished skin.

"There is no mark. What was it?" Sasuke debated as to whether or not he should tell Dumbledore about it.

"It was a cursed seal, but one that gave me power. Oorichimaru's mark."

"Oorichimaru?" Dumbledore's face darkened. Sasuke didn't notice. My power, I will not be able to increase it. All I have is my power. I can not feed off of the extra the cursed seal gives me. The thoughts running through his head did not give him much confidence with the reminder that he would have to fight a dragon.

"How has Harry survived all these attacks on his life? How did Voldermort try to kill him?" Sasuke asked. Perhaps with this information, he might be able to get a hint of how people fought in this world. Perhaps it would help him with the dragon.

With that question, Dumbledore shifted into a story of Harry Potter's life. Sasuke frowned at the fact that Harry's parents had been killed, and again when Dumbledore described Voldermort. He found the parallels to his life and Harry's somewhat disturbing. So the boy he was taking place of was being targeted by a man that controlled snakes. Although Oorichimaru's aim was not to kill him, he was most certainly being targeted by him. Dumbledore suddenly stopped the story.

"Come, it is time you got back to your dormitory. It is past dawn, and the others will be waking soon. I will inform Professor McGonnagal of your presence. She will look out for you." With that, Dumbledore guided Harry out the room and back down the stairs. "You will have to learn your way around this castle. Can you remember your way back to the dormitory?"

"I am a ninja, and not especially forgetful." Sasuke said with, -what was that?- a hint of pride?

"Yes, yes. The other said the same thing, but remember, this is a magical school. Gook luck, and keep in mind, you are not, with the exception of myself and Professor McGonnagal, to let anyone know that you are not Harry Potter. And beware: These portraits can hear. You can never be sure you are completely alone."

With that, Sasuke went back down to what he now knew was the Gryffindor Common Room, and then crept up to his dorm. No one heard him enter, and he slipped back into his bed and waited for everyone else to awake.

Harry was staring at Naruto. He didn't know how anyone could grin so much without having their cheeks ache. They were walking along, Harry besides Kakashi, and Naruto besides Sakura. Alternately Naruto would try to talk to her, or just grin at her. Sakura would sometimes be polite and answer, but mostly just ignore him.

Also, for a reason Harry couldn't fathom Naruto would occasionally turn around and send him death glares. Whenever he did this, Harry just avoided his eyes.

Not being a ninja, and being in a world where cars, trains, or magic transport you everywhere, Harry was not used to so much walking. They had been walking for over half a day so far, without a break, and they did not look like they were ready to stop any time soon. Harry however would have given anything at that moment for a five minute break.

"If only I had my broom..." Harry muttered to himself. His legs were really beginning to ache. Suddenly they came to a stop. The trees were thinning out and Harry, with all his complaining to himself, had not noticed that they had come to the edge of the forest.

"Now, I have not told you much of this mission, only that we are going to be going to a small country, near the Sand Country. It is a small rural village that does not need ninjas. However, there have lately been a series of murders. Whole families have been wiped out. The murderer was careless however. In the third family he killed, he left a survivor. She was able to give a description of him to the local authorities. The murderer is most likely going to come back for her, so it is our job to protect her until the murderer is found."

"Sort of like a bodyguard." Harry commented, then wished he hadn't. Sakura and Naruto looked at him, and Kakashi looked (with his one eye) up to the sky.

"We've done this sort of thing before, Sasuke." Naruto said.

"We need to get there before dawn," Kakashi interjected, "so we're going to pick up our pace." Harry looked mortified. They were going to keep on going, and go faster? "Sasuke? You alright?" Kakashi asked. Harry gave him a pleading look, but Kakashi just shrugged and started running. Naruto and Sakura started running after them. Harry gave a small self-pitying whimper, and started running.

"What wouldn't I do for my broom now?"

It wasn't long after Sasuke got back that the other boys awoke. Sasuke was sitting at the edge of his bed, curtains pulled. When Ron woke up he took off without a glance in Sasuke's direction. He noticed that the other boys were getting toothbrushes and things from a set of drawers beside their beds, and filing off somewhere. Sasuke looked in his drawers, and after a few minutes found Harry's toothbrush, and followed the other boys.

In daylight the room that he had been in before was even more strange. He could clearly see the portraits moving, talking to each other, and walking off to wherever portraits decide to go.

The boys went into a bathroom, which was unlike anything Sasuke had ever seen. First of all, everything was made of stone, the walls, the floors, the sinks. The doors were made of wood, but they were big and heavy. This building was ancient, Sasuke realized, like the ruins he had sometimes visited with his team. He had never been inside a castle before, though.

In his village, most of the buildings were made of wood, or brick. He wondered if it was the same for this world. When he had finished brushing his teeth and washing up, he followed Ron back to the dorm room.

He had to keep Ron in his sight. Even though they were supposed to have fallen out, he had been informed that Ron was the only person who shared exactly the same classes as Harry did.

He found the clothes he was supposed to wear folded up neatly on a chair besides his bed. His bed was made as well. Was this magic? Or did they have servants to do this sort of thing? Pushing such unimportant matters out of his head, he focused on a more pressing matter.

How on earth was he going to tie his tie? It was the first time he had ever had to use one after all. Feeling a little sheepish about using his sharingan for such a menial thing, he activated it, looked at Ron, then copied Ron's hand motions. Well, now he knew how to tie a tie.

He pulled on his robes over his uniform, and picked up a bag seemingly full of books that was left near his bed. He followed Ron out of the room.

They left the Gryffindor Common Room and went through a series of turns and twists, down many small passages, until finally they came to a wider passage, and entered two great doors into what seemed to be a dining hall.

It reminded him somewhat of lunchtimes when he was still with the academy. Only there were small differences. Here and there food would magically appear or vanish on a plate, butter was slicing itself and offering itself to any student that took a piece of bread. Sasuke even saw a student casting a spell on a bowl of porridge. It grew legs and started to tap dance around other people's plates and bowls, occasionally spilling porridge on people's bacon.

Walking in between the rows of tables Sasuke was faced with a problem. Where should he sit? He couldn't go and sit with Ron, and he didn't know who Harry's other friends were. He just grabbed a seat and sat down. Pulling a plate of eggs towards him, he tried to ignore the people staring at him. What was he doing wrong?

"Excuse me?" and older girl with long black hair tapped Sasuke on the shoulder, "Why are you sitting with the Ravenclaws?" The what? Sasuke thought. He searched his memory and part of the conversation that he'd had with Dumbledore last night came into mind.

"There are four separate houses in Hogwarts. Gryffindor, Ravenclaw, Hufflepuff, and Slytherin. They are sort of like teams, or communities. Each student is a member of one. They eat together, sleep together, and generally share classes with each other. Harry is part of the Gryffindor House."

So that's why they were all wearing blue... Sasuke awkwardly got up and went to the table with others who were wearing the same colours as he was. He saw a girl waving him over.

"Harry, why were you sitting with the Ravenclaws?" She was a relatively small girl, with bushy brown hair and delicate hands. Ron was sitting besides her. So this must be Herm... Herminoninine... Sasuke thought.

"Probably just asking someone if they wanted his autograph." Ron muttered.

"Ron!" Hermione said, giving him a warning look.

Sasuke frowned at Ron. He didn't know how Harry would react to such a thing, so he would just have to make it up as he went along. He hoped that his friends wouldn't notice the difference. It was unlikely though. Oh well, Sasuke thought. Time to start acting.

"Actually, I was just talking to someone." Sasuke replied.

"Trying to talk to Cho again?" A voice on his left said.

"You'll have better luck with the Fat Friar!" Another voice rejoined on his right. Two identical twins grinned at him. They each took the seats beside Sasuke and started shoveling food onto their plates. Sasuke glanced back over to the girl that had spoken to him at the Ravenclaw table. She was the first girl that he'd seen that looked at least a little like the people of his village.

After breakfast Sasuke followed Ron and a few others from their table to his first ever magic class. Only it wasn't really magic, and Sasuke felt relived that it was something that he could pull of. Potions. He hoped it would be like the medicine training back when he was in the academy. They would have to go out and identify whatever plants their teacher told them to find, bring them back, then mix them in various different solutions to form ointments, poison, or medicine.

They entered a dark dingy classroom that seemed more like a place for punishment rather than learning. The stern-looking hook nosed man at the front of the classroom gave them the instructions to start brewing a tarantella potion. As long as he managed to copy what those around him were doing, he should be able to get by, Sasuke supposed.

He followed the girl at the table, Hermino-something, and brought back the exact same ingredients she got. They had been brewing for about half an hour before the teacher, who Sasuke learned was Professor Snape, started coming round and checking the students' work. He came round to where Sasuke, Hermione, and Ron each had their cauldrons boiling. Sasuke tried to look as unnoticeable as possible.

"What is this?" Came the teacher's accusing voice.

"Professor?" Sasuke replied. At the back of his mind somewhere he was proud of himself for remembering to call the teacher 'Professor.'

"I mean; What is this foul liquid you might dare call a potion?" Snape's harsh voice came again. He was glaring at Sasuke. Sasuke tried to stare Snape down, but felt his confidence waning exponentially.

"It's a tarantella potion." Sasuke said, as though it were obvious.

"I do not call this," Snape said, scooping some of his potion up with his ladle, and letting it plop back in, "a tarantella potion. Potter, tell me, did you even bother to read the directions? Or were you too busy copying Miss Granger's potion to even notice that you missed the most vital ingredient?"

Sasuke was liking this teacher less and less. He didn't have a reply. Hermione was making motions behind Snape's back and mouthing something, but Sasuke couldn't make it out.

"Turn to page one-hundred and eighty-two in your textbook, which I've noticed, you've carelessly left closed. Or perhaps you are so advanced in potions that you do not need a textbook?" Behind Snape, Sasuke could see a few students from the other house- Slytherin was it?- snickering. "Come on, we haven't got all day? What are the ingredients?"

Sasuke found the page perfectly alright, but the writing inside, he could not comprehend. It was full of foreign symbols. Why had Dumbledore forgotten to tell him about this?

"Well...?" Came Snape's impatient voice. Sasuke didn't know what to do. He couldn't tell Snape that he couldn't read it. He wished that he could just run out of the classroom and hide. Maybe if he closed his eyes he would be back in his own world. He would wake up and find himself being annoyed by both Naruto and Sakura.

He stared at the symbols. They stared back at him, and nothing happened. He had never been faced in a situation like this before. Back at the academy he was the top student. He never faced a teacher without an answer. He could feel a small bead of sweat roll down the side of his face. Instantly he was annoyed with himself. He was a ninja. He shouldn't be letting his emotions control him like this. Calming down, he took another look at the words. All at once they seemed to spring together and form words and symbols that Sasuke was familiar with.

"To make a tarantella potion," Sasuke began, "one needs: one adder's skin, one dolphin's hair, three spoonfuls of spiders eyes..."

"Yes, yes, we know all that." Snape cut in. "Get to the most important one, the one that you missed." Sasuke glared at the greasy-headed professor. Just then he caught another glimpse of Hermione's actions. He glanced down at the page.

"One shoelace." Sasuke stated.

"Exactly. Tell me, what is a tarantella?" Snape asked. Sasuke glanced down at the page again.

"A.. dance?"

"Well, done Potter. Now, tell me how you can make a potion to make someone dance without having a basis for their feet? How can one dance without one's feet?" Snape's voice was scathing, and Sasuke was getting rather tired of hearing it.

"I don't know. You're the professor, why don't you tell me?" Sasuke replied icily.

"Right Potter, for your cheek you have dinner detention. Be back here at six o'clock. Maybe next time you can learn your potions without Miss Granger's help. Fifteen points from Gryffindor." Sasuke inwardly groaned. Moans of protest were coming from various Gryffindor students around the room. This was going to be a long, trying time before he was able to get back to his world.

(A/N) I used a tarantella potion, which is probably not a real potion in the Harry Potter books, but I wrote this late at night, and couldn't be bothered to flip through nearly seven hundred pages to find one.

Thank you for reading! Please review, I'll accept flames. I want to know why my writing has degraded so much that now I only have an 86 in my English class...