A/N: Hia! I've got another story for you. Consider it an apology for me not updating anything in a while. Even though I updated today. Well, whatever.

This one is a crossover between Harry Potter and Assassin's Creed 1. Yes, one. Because I just love Altair. It is just the first part and I don't have anything more yet, but I'm working on it. Hope you will enjoy it.

Disclaimer: I just own the plotline and the computer it was uploaded from. Though I wouldn't mind owning Altair...

Part 1

Altair was sitting in his office in Masyaf, working on the codex of the brotherhood, the apple lying next to his left hand on the desk. He was on his twenty fifth page when the apple glowed and flashed a briliant gold. The next thing Altair knew he was lying on his face on hard wooden floor.

"Welcome," said a soft mysterious voice.

Altair lifted his head from the floor and looked up to see an old man with strange lavender eyes that seem to be able to see your very soul.

"Where am I?" asked the assassin.

"In my shop in Diagon Alley," said the man. "My name is Olivander and it is because of me that you are here, young Altair."

"How do you know my name?"

"I know a lot of things," spoke Olivander softly.

"That doesn't really answer my question..." replied Altair, slowly getting annoyed with the man for not giving him any useful information.

"No, I guess it doesn't," chuckled the man, Olivander, before going to the back of the shop and dissapearing behind a curtain. He was back only a moment later and was holding a wodden stick of sorts. "You might want to take this, it's been waiting for you for centuries," he said holding it out for the assassin to take.

"And why would I want to do that?" asked Altair in a wary sort of voice.

"Because you're in a world of magic now and knowing how to use this may save your life," replied Olivander with a serious tonen in his voice that just didn't feel right.

"Magic, right?" inquired Altair. "Oh well, it probably shouldn't surprise me at this point that it's real..."

He took the stick and was enveloped in golden light filled with symbols and knowledge – the light of the Apple. And then the apple merged with the stick – or wand, I suppose, thought Altair.

"Now what?" he asked when the light subsided.

"You'll be going to Hogwarts and see where it'll get you," replied Olivander.

"What's Hogwarts?"

"Ah, of course you wouldn't know..." mumbled Olivander and then continued. "Hogwarts is a school of magic where children go at the age of eleven to learn how to control their magic. They spend seven years studying magic and then they either get a job or start a family, or, if they have the brains for it, they study for mastery in one or two subjects."

"And how do you expect me to pass as a kid?" asked Altair. He did not see a point in arguing about actually going there, Olivander looked too stuborn for it.

"You're not that old, you'll pass."

Altair only rised an eyebrow and sighed.

"Fine..."

"Good, you'll be going as a fifth year and you'll need to learn the stuff of the first four in the next month," nodded Olivander and motioned for Altair to follow him to the back of the shop and when they entered, the old man continued up stairs and through a door that obviously led to his home above the shop.

"You'll be staying here and I'll teach you..."

Altair just nodded. Not deeming it worthy of a verbal answer.

And thus were a month spent studying anything and everything about magic that Altair could get his hands on. During this month, a letter arrived saying that he has been accepted as a transfer student and listing the necessary equipment he will need.

During this time, Altair also learned about Voldemort and Harry Potter. He also learned that Voldemort was back, even though majority of the wizarding world didn't believe this.

He sighed... He just new, that somehow, he will get involved with this war even if he tried to stay away from it. Might as well get involved right from the begining...

When the month was up and the first of September arriwed, Olivander waived goodbye to Altair, who apparated to platform 9 and ¾. To be honest, Altair was greatfull that he learned how to apparate. It saved a lot of time and not only that. He was thinking how to use it as a battle tactic when – if he corrected himself grudgingly – he got home, back to his own time.

He walked toward the scarlet train to find himself an empty compartment. Seeing as he was very early, it was an easy task to complete.

Altair shut the door behind him and dug in his pocket to find his shrunken trunk. He placed it on the seat and taking his wand out of his sleeve, he enlarged it to its original size. Opening it, he took out a book and then, after closing it and shrinking it again, he returned it to his pocket.

Sitting next to the window and reading was how he passed time till the train would depart. Most people walked by without bothering him. Some looked inside, but when seeing unfamiliar person strangely dressed, they continued on their way.

Most.

The door creaked open and inside walked a blond girl with a magazine.

"Can I sit here?" she asked, gesturing towards the other window seat.

Altair thought about it for a while, but decided that it would do him no harm to let her share his compartment.

"Sure," he said and went back to his book.

Then, out of the corner of his eye he could see the girl reading her magazine, only, it was upside down. Deciding it was none of his business, he immersed himself in his book for real this time.

After a while the whistle blew and the train started moving. When the door creaked for the second time, he raised his head only to see a girl and two boys looking inside.

"Lets go in, it's only Luna in here," said the redheaded girl and entered. The two boys following.

Interesting. They haven't noticed me yet, thought Altair.

"Can we sit here?" the girl asked the newly dubbed Luna.

Luna looked straight at Altair and when he shruged, indicating that he didn't mind, she nodded to the red head.

"Thank you," the girl said and sat down on the seat next to Luna. One of the boys sitting next to her and the next one next to Altair. Still not noticing him though.

Altair wondered wether he should make them notice him, but decided against it. He just knew it would be fun when they did.

It was about two hours later when two more people came into their compartment. It was a bushy haired girl and a redhead that was probably related to the girl that came with the two boys. He still didn't know their names... Well, whatever. It's not like he cared at the moment.

"Would you mind moving to the window, Harry?" Asked the bushy haired witch. Harry shruged and stood only to sit again, only, this time on Altair. Harry yelped and jumped to his feet again, as if he was set on fire.

He whirled around and for the first time noticed Altair.

The boy's cheeks reddened in embarassment.

"I'm sorry," he stammered and made for his original seat.

It was then that Luna burst into laughter.

"What's so funny?" asked the readheaded boy.

"That you didn't notice me until now," was Altair's smooth reply.

"What do you mean? There was noone there!"

"No, you just didn't notice me," replied Altair coolly and went back to his book.

"So wait, you mean we're one seat short?" asked the bushy haired witch. She had this bossy tone and Altair decided he didn't like her much. The teen that sat in his lap, though... That was a different story.

Sighing, Altair sood.

"You can have the seat," he said and left the compartment without waiting for a reply.

Then, he went through the train to its wery end. There, he opened a window and climbed out and on the rooftop.