Hey people of Fanfiction I'm Assassin4life here with my first fanfiction. It is a Danny Phantom and Assassin's Creed crossover centered around my Assassin's Creed OC and Danny with the usual side characters. Phantom Planet never happened in this and there is some mild cursing and violence so you've been warned.

EDIT (4/7/13): Rewrote the chapter a bit.

EDIT (10/16/13): Changed Dialogue and cut down descriptions. Also characterized my Original Character a bit more.

EDIT (12/13/13): Fixed up some errors.

DISCLAIMER FOR STORY: I DO NOT NOR EVER WILL OWN DANNY PHANTOM OR ASSASSIN'S CREED. THEY ARE THE PRODUCTS OF THE GENIUS MINDS OF EVERYONE AT UBISOFT AND BUTCH HARTMAN.

The Assassin

Prologue

Somewhere in the Ghost Zone…

"He is growing restless!" Said a being with one large eye.

"You must stop him before he cracks under the pressure!" Another said looking almost exactly like the other.

"You are losing your control over him!" The two said this at the same time; there were three unearthly beings inside a room filled with various degrees of clocks. Ticktock, ticktock they went if you stayed there for too long you would slowly grow insane from the constant noise.

"That is the problem with you Observers all you do is observe. You must learn to wait and listen. He will not crack under the pressure." Said Clockwork, the master of time, the being who sees and knows all, and one of the oldest ghosts in the Ghost Zone. Himself and two observers were overlooking a big portal in the shape of a clock, where there was a battle taking place between a ghost wearing a black and white jumpsuit with a white D and a black P inside on his chest, his opponent was a big ghost wearing a high-tech suit of armor of sorts and had flaming green hair with a small flaming beard and a skull necklace.

The ghost with the black and white jumpsuit was getting beaten and knocked left and right, endlessly being pounded by punches. The metallic ghost grabbed the white haired teen by his legs and swung him around until he threw him right onto the pavement below. There were two other people there, running after the ghost with the jumpsuit. They tried helping him up until the armored ghost came floating right in front of the group, a smirk along his face. He knew that this battle was won and he caught his prey, until a blue beam enveloped him and sent him away into a thermos of sort the lid being closed by a girl with orange hair. The four smiled at each other for a second when another ghost shortly attacked right after the last, the four entering into battle again.

"Do you not see what is happening?" Asked the first Observer

"He is becoming overwhelmed!" Stated the second

"You know what is coming!"

"You must stop him at once!" Said both.

"Do not worry yourselves from such petty things," The Master of Time then went over away from the portal and closer towards the two one-eyed beings, "Everything is well and everything is as it should be. It's all going to be fine."

"Alright Clockwork but know this…"

"You have been warned." Said both as they soon exited Clockwork's lair. As soon as he was left alone Clockwork gave a sigh, contemplating what to do. He was actually lying when he said all is well. His usually all-knowing demeanor was crushed, for once in all of his countless centuries of being the Master of Time he did not know what was going to happen nor did he know the danger ahead, and most of all he did not know what to do. Clockwork was, to put it simply, annoyed. The quietness inside the massive citadel did not help his predicament and neither did the constant tic of the clocks. To top the icing on the metaphorical cake a soft clicking noise came from a corner of the room quickly getting on Clockwork's nerves.

There was another click and a sound of a blade being unsheathed. Click. The click came again and the sound of a blade sheathing back. Click. Click. Click. Click. The sound lasted for what seemed ages, adding on to the effect of the annoying Ticking sound it was very...aggravating.

"Would you please stop that?" Clockwork asked, his tone irradiated and highly annoyed.

"No need to get annoyed Clockwork. I was just bored." There was a mysterious man - around the age of 16 - standing in a very dark corner of the room, his face was overshadowed by a dark hood and mouth-mask, the only thing visible being a necklace with a red pendant. The pendant was beautifully crafted being a very deep dark red with small tints of black, along the bottom of the necklace was six woods engraved into the steel: Nothing is true, Everything is permitted.

The boy was dressed in a long, black, double breasted pea coat that went down to his knees. It had white lining along the hems of the coat and the collar was open and slightly popped, revealing red velvet inside. Attached was a black hood with the same color scheme of the coat. He also had knee-high, brown leather boots. The stranger was armed as well having enough weapons to take down a small army, various knives along his person and a sword strapped across his back. Along his waist were many pouches and along the back of his waist were two white pistols crisscrossing in their holsters.

The teen was staring at a bracer along his left wrist stretching to his elbow, he had a closed fist and his wrist slightly tilted making way for a blade, the weapon was locked in place for a moment until it retracted back into the bracer.

"Just please stop. I brought you here for a reason. No matter how adamant you were in leaving."

The man scoffed at the ghost's words, his emotions hidden in darkness

Clockwork gave a sigh and turned to face the stranger. "Drop the facade. You need not to remain so stoic while in my presence."

"I will do so only when I know I can trust you." Growled out the teen, his baritone voice odd for someone so young.

"Oh you will. All it takes is time, which I have an endless amount of."

"Remind me why I shouldn't kill you now and be on my merry way?"

"Because I need you and you need me. Against my better judgement I have shown you a small glimpse of the future, now it's up to you as to how you will proceed."

The teen gave a sigh and walked away from the pillar he was leaning against going straight towards Clockwork. He stared the ghost down for a moment looking like a hunter sizing up his pray.

"If you were alive you would have made an excellent addition to the Brotherhood, what with your obsession with secrets."

"Flattery will get you nowhere. Besides I do not agree with the...ideals your order imposes. I wouldn't have made it far in the hierarchy." Said Clockwork, a small smile sprawled along his face and earning another scoff from the hooded figure.

He flew away from the teen and went over to a wall with many pendants on it all of them shaped in a gear and had the initials CW on them. He grabbed one of the wall and opened a panel on the back, crossing wires and configuring buttons on it. He finally closed the panel and handed the pendant to the stranger. Clockwork then pushed a purple button next to the pendants that revealed a panel with a single green vial, he bottled it and handed that one to him as well.

"I made some changes to this pendent. normally it only allows for a short amount of time in the desired place of history or realm. But now it should let you stay in this universe for as long as you need, so long you have it with you. I am also giving you this," Clockwork held up the green concoction in front of him "it is made out of ectoplasm along with some other special ingredients. You only have one so use it wisely."

"What does it do?" He asked.

"It will be revealed in time." Clockwork and the teen looked back at the portal where the ghost child was fighting a third enemy. The third ghost was about to win until him and his comrades all fired at the ghost at the same time effectively putting it out of commission. Two blue rings appeared at the child's waist going around him until it turned him back into a human, himself and company walking home."It seems you are safe to leave but just in case I will make it nightfall." The image within the portal began to change being replaced with the same one, yet darker. "Now go. But before you do make sure to get rid of that outfit and weapons it will bring unwanted attention."

"Anything else I should worry about?"

"I can't tell you everything about the future now can I?" Clockwork held a mysterious and forbidding tone when he spoke those last words, having a playful smile.

The boy gave a short chuckle at his response. "Very well Clockwork I'll do what you ask of me. But after this expect nothing more from me or the Brotherhood."

"Fair enough."

He pulled out a small orb-like object from one of his coat pockets and tossed it into the air, the orb seemingly about to fall until it started to float, hovering over the child's head. The bottom of the orb then opened up, a holographic tube surrounding his body. His coat and weapons were now gone being replaced by a black and red hoodie with the sleeves rolled up to his elbows, the jacket being zipped halfway. He had a white t-shirt on with a red tribal eagle printed upon it. He also wore a pair of black cargo pants with many zippers and a silver chain hanging from the side of his pants, finally he was wearing a pair of dark brown leather boots.

He lastly had a white, silk, one strap backpack with a square design; it had red velvet on the inside of it and many more zippers. All that was left was the bracer with the hidden blade attached to it, he flipped his forearm over and waved his hand over a small red insignia and slowly the bracer was retracted piece by piece until all that was left was a black leather wristband with metal covering, engraved on the metal was the insignia that his bracer held.

The teen tore off the strands of Clockwork's pendant as well as removing the Assassin symbol from his necklace switching the two. He placed the cog on the chain necklace and attached his orders symbol on the chain on the side of his pants, the insignia twirling as he walked towards the portal. He gazed into the green mass for a moment, the portal towering above him menacingly.

"Try not to cause too much trouble there Dante. I don't want to have to deal with the observants bearing down my neck. You know how annoying they can be."

Giving a smirk and a light chuckle Dante jumped through the portal, not once turning back.

"The clock is ticking, the pendulum has been put into motion and the fates have finally weaved those two threads at last. This is going to be interesting. Quite interesting indeed." With that final note the purple robed ghost left the strange scene after looking at the portal for one last time, images flashing before it. The flashing finally stopped on an image of a white-haired as well as a black-clad man standing side by side, a shadow looming above them with a long and sharp smile.