AN: So, I was listening to Rocket man by Elton John and in my head there were flashes of leaping and flying through the air only to crash back to earth. I then sat for a while and pondered how best to write those feelings when it suddenly clicked, Assassin's creed. But being a mainly HP fanfics writer I couldn't just do another Ezio/OC now could I? So, you get this. A one shot of Harry Potter the assassin, with a small twist. Warning: WILL contain blood, gore and slight swearing. May also contain Plot. You have been warned.

Disclaimer: I don't own this. Assassin's Creed is property of Ubisoft and its affiliates. Harry Potter is J.K Rowling's work. I'm just borrowing ideas and people to play with for myself.

Thanks be to my AWESOME BETA Windscurve (Using internet name as i'm sure she'd skin me for actually putting her name in here) and I hope you enjoy it

Of Codices and Conquerors

I closed my eyes in mock rest, leaning my back against the wall of the building I was seated in front of. The bench gave me ample distance so I could see and hear conversations without being discovered as an eavesdropper. Two men stopped about five metres away from me, speaking in whispered tones. My hearing tuned out all those around me like background noise and I heard the most disquieting, yet best news in three months.

"… Plans to kill the minister three days from now"

"Three days? But I don't have nearly enough time to gather my finances to make a coup by then!"

"You have three days; the Maestro will not take kindly to failure again. Not with that blasted assassin skulking around, making us look like bungling fools."

I smirked. Lucius must really hate that I killed all his 'reliable' lieutenants. A sigh comes from the second man's lips and I tune back in.

"Yes, of course, three days. I'll think of something."

"You better, or we'll both get the chop. And not from the assassin either. Capiche?"

"Si, Mentore."

"Now, if anything goes wrong I'll be with the Maestro for three days finishing up details, so you'll have to contact me through the other ways."

"Of course, nothing shall go wrong on this end. I'll make sure of it"

"That's what I'm afraid of." The Mentor's voice was heavily laced with sarcasm.

I had heard all I needed to hear. I rose from the bench and stretched slightly. I saw the two men had split up, and gone off in different directions, and I sped up slightly. Lithely, I jumped up onto the window of a building and scampered up the face of the wall. Once on top, I checked my hidden blade to make sure it was secure, (couldn't have it coming loose in a fight, it would be tragic) and looked over the cityscape. I spotted one of my recruits and signalled the hit on the second man, the one who was making the coup. I stood and watched as my recruit jumped into a bale of leaves and waited. When the target strayed past he grabbed him and with a quick blade to the throat it was done. My recruit (Georgia was it?) ran into the crowd and disappeared. I nodded with satisfaction and started running along the rooftops, tailing my man and leaving nothing but a whisper behind myself. This was what I loved doing, tracking someone without the target ever realising that I could jump down at any moment and end his life like he was an animal .

The night found me perched on the wall of the old, abandoned mansion outside York. I had tailed the Mentor there and promptly executed him, his lifeblood flowing into the ground. Reuse, recycle as I always say. Blood is very good for soil, rich in nutrients, you know. A guard on patrol walked by, his weapons holstered and looking far too relaxed. I pounced and stabbed him in the gut.

"You know," I said with sarcasm and disdain, "your unreadiness is going to get someone killed"

He gurgled and died. What riveting conversation that man made for. I hid his body in the shadows and carried on. I came upon the wall. I could hear loud shouting and I quickly scaled the wall, avoiding the lights where I could and where I couldn't I used my dagger to cut the power I made it to the window and I listened in.

"You can't be serious, Jessop!" Ah, so that was the "Mentor's" name.

"I am Maestro, he is dead. The assassini must have got to him"

"Goddamnit Jessop that was our final plan! What am I going to tell our master now? 'Sorry, master I couldn't do it because my subordinates are completely incompetent at keeping themselves alive?' I can hardly see that going over well."

"I'm sorry Maestro, please forgive me." I can just imagine him cringing. This is fun. But I may want to break it up before Lucius kills the poor man. I am in need of his services to me as information.

I jumped through the open window with grace, and landed on the floor, hardwood, very durable. I looked up and saw the shock on their faces.

"Hey Lucy, long time no see" I say as I smile my lopsided smirk-smile.

"You! DIE!"

How original.

He pulled his sword and I drew mine. Jessop was still frozen in fear at seeing what he believed to be death incarnate at the window. Lucius swept him aside and carried on. He slashed at my chest but I parried. The room filled with the noise of steel meeting steel and the whistle of keen blades through air for five minutes. It was occasionally broken up by the sound of feet on walls as I used my acrobatics to confuse Lucius. As I leant back to dodge a rather vicious jab that would have wreaked havoc with my clean clothes and respiratory systems, I noticed that Jessop had regained his senses and was slowly edging his way to the door. Fool, should have run instead. Time seemed to slow down as I flourished my sword and used it to knock Lucius' sword out of his hand. I pulled out one of my throwing knives and throw it at Jessop's foot, nailing him to the floor. I whirled around and used the momentum to break Lucius' nose with my right booted foot. Time sped up again and I walked over to Lucius, kicked his sword away and opened my hand to reveal my hidden blade, well blades. I was pissed off so I extended both of them. I looked into his eyes and spat at him,

"Prideful fucking idiot. We could have been brothers but you turned your back on me and became a lieutenant for the great evil. Why, Lucius why?"

He turned to me and regarded me with those icy silver eyes of his. "You arrogant prick, you expect me to join your little club? I have so much more to myself now. I am too powerful for you."

"Then you must die. I'm sorry Lucius. I really am."

My blades come down and pepper his body with holes. I close his eyes with my two fingers and speak three final words to him.

"Requiescat in pace."

The war hasn't changed much in 400 years. Guns may have taken over from swords and cannons from arrows, but the secret world, the world of the assassin's have not changed at all. Knives and blades are still the mode of killing for both Templars and Assassins. Both have changed their clothes to be with the times but it's mainly the same way of dress. The cross that used to adorn every templar's chest is now an Abstergo Corporation emblem or a cross on the neck. The assassin's have gone from the hooded flowing robes to white jumpers with hoods and white jeans with a red fabric belt. Well, almost ever assassin and templar have changed. Those in the wizarding world have seen no need to change from renaissance times clothing of their separate factions as robes are 'timeless'.

Yes, I said the wizarding world. My name is Harry Potter and I... I am an assassin.

I bet you're wondering how the wizarding world's saviour becomes an assassin. Well, it's a long tale. Full of death, blood, loss, remembrance and finding of ancestor's things. So, sit down comfortably and I'll begin...