Well...If anyone's gonna go all 'Teen Titans and Assassin's Creed? IMPOSSIBLE!' I can explain! This started from a conversation I had with my friend while we were bored during class. It went along the lines of

Me: So...Teen Titans and Assassin's Creed crossover?

Friend: Hmm...I still think Punisher would be better. But AC might just work...

Me: Hmm...TT, AC Crossover, with dimensional shit?

Friend: You just got Season 6. Too bad they canceled the damn show.

And that gave me an idea, you see. So...Enjoy, this is a pre-emptive apology for any OC-ness and stuff like that.

EDIT: Here's the edited version. Thanks to almostinsane for pointing out that the first version's fight scene was...Too off. And I also tweaked some things as well. Chapter 2 had to be rewritten as well. Oh well.

Disclaimer: I do not own Teen Titans or Assassin's Creed

Chapter 1

"That them?" The man asked his companion as he blew out a puff of smoke. He held a photograph in his gloved hands. He placed the cigarette back into his mouth and took a deep breath. As much as he hated smoking, he had to admit that it kept him warm during the cold winter nights.

"Positive," The other man replied. He was much younger than the other man, no more than 25 years old. He pulled his jacket closer to his body to protect himself against the biting cold. The two men stood side by side on a deserted sidewalk, staring at the empty wall opposite.

The older man dropped the cigarette and crushed it under his heel. "So, which one? There are five of them, can't be all of them." He said, his voice calm and level. Despite the fact that he was only wearing a two-piece suit, he ignored the wind.

The young man shifted uncomfortably as he struggled to phrase his answer so that he would live to see another day. "Um..." He started, his throat suddenly feeling dry. "W-We were...Unable to locate the individual." He stammered out.

Noiselessly, he older man turned to face his subordinate. "So," He started, the calmness in his voice making the younger man even more nervous. "You had...Ten, was it? Ten men and yourself on this job, and," He held up the photo. "All you got was this? Mr. Emmett, I expected so much more from you."

Emmett gulped. "Sir, I-I had not enough time-The tower was too protected, w-we couldn't-" He stopped when he noticed his superior's cold gaze. "Please sir," He pleaded. "One more chance, that's all I ask, and we'll get it done! I promise you!"

The older man frowned. "If I recall, this assignment was your second chance." He smiled inwardly as Emmett paled significantly. "But," At that word, Emmett let out a sigh of relief. "I will allow you another chance."

"Yes sir!" Emmett said enthusiastically. "Anything, anything at all!"

The older man held up the photo again. He took out a lighter from his pocket and used it to set a corner of the photo on fire. It blackened and twisted as the flames began to spread. "Eliminate them. All of them."

"But...What about locating the individual?" Emmett asked, confused.

The older man chuckled. "Well, you were going to eliminate him after you located him, so this is technically the same thing." He explained. Then, his expression hardened. "But, if you should fail me...You should know what would happen."

Emmett gulped and nodded slowly.

"Good." The older man said, and with that, turned and left, leaving the young man alone on the sidewalk.

Up on a rooftop overlooking the sidewalk, two hooded figures overheard the exchange. They looked at each other worriedly. One of them shook her head.

"Right. It's not good." The other replied. His voice had hints of a Scottish accent.

The female just nodded her head in agreement. She pointed to the 'T' shaped tower in the distance and shrugged.

The male sighed and said, "I don't know...We should tell Hunter, see what he thinks." His companion nodded and turned to leave. With a running start, she jumped off the edge of the roof and landed on the adjacent rooftop.

The male sighed and said to himself, Things just got complicated.

VvVvV

Okay Beast Boy. The Changeling said to himself as he walked down the hallway. It's 9am, everyone's having breakfast and Raven's in her room. Now's the time. He held a single red rose behind his back. He walked slowly, as if he was a criminal on his way to the gallows. Not at all like a changeling about to profess his love to a certain dark sorceress.

When they first met, Beast Boy immediately felt attracted to the mysterious goth girl, but he suppressed his emotions, believing that it was purely a physical attraction and that he would get over it. However, over time, he began to see past the girl's cold hard exterior and see the real, vulnerable Raven hidden underneath. At first, he once again thought his attraction was just a crush.

But, over time, he realised that his feelings of attraction was more than just that, it was love. However, at that time, he was certain that the feelings were not mutual. She constantly brought him down with sarcastic remarks or hurled him out of the Tower.

Now that he was 18 years old, he decided that he would man up and just admit his feelings to her, regardless of the results.

He stopped in front of a door with the name 'RAVEN' written in black bold letters on it. He took a deep breath and pushed any doubts he had into the darkest corner of his mind. He knocked on the door.

"What?" A voice snapped from within the room. Beast boy cringed. If he had interrupted her while she was reading, or worse, meditating, things could easily go wrong.

"I, um, I need to talk to you." Beast Boy replied. His doubts were resurfacing, but he pushed them back down.

"We're talking now."

Beast Boy sighed. If he wanted to walk away, that was the time. No way, I've waited too long for this. He took a deep breath and said, "I meant face-to-face...It's um...It's important."

The door opened after a short pause, revealing a less than pleased Raven standing in the door way, her hood down. "What's so important?" She asked, a hint of irritation in her voice.

He brought the rose out from behind his back and presented it to her. She raised an eyebrow and asked, "What's this about? Is this a prank?" She accused.

"No!" Beast Boy denied. "Uh...I just...Um..." He blushed, the red staining his cheeks a shade of brown. "I just wanted to give you this." He said meekly. Idiot. He scolded himself mentally.

"The reason being...?" Raven prompted. Though she wouldn't admit it, she hoped the changeling was going to say what she thought he was going to. Though she didn't show her...Affection as obviously as Beast Boy, the signs were there, whether it was always looking out for him during battles, or when she would give a slight smile at his jokes, just to amuse him.

"Uh..." Beast Boy started, unsure of what to say. "Well...I just wanted to get this off my chest. I mean...Uh..." He said. Okay. List the reasons? Or not. Maybe I should just say it outright? But then it would sound like just a crush! But listing the reasons might buy time for my doubt to back me out...

He sighed. Just get it out and over with. "I-I...Love you, Raven." He said and looked down to the floor, not wanting to face her rejection.

"Huh?" Came the unintelligible reply, a first for Raven.

"I know, I know...You probably don't feel the same way," Beast Boy said sadly. "But I just wanted to-Hey, huh?" He was interrupted by Raven suddenly throwing her arms around him and hugging him tightly as she finally processed what the changeling had said.

"Do you really mean that?." She asked, whispering into his ear.

"Yes, Raven. I love you, with all my heart...Of the largest animal I can turn into." Beast Boy replied and grinned at his little joke.

Raven smiled and whispered, "Then...I-I love you too."

Beast Boy smiled widely as he processed the words. YES! He screamed in joy mentally. He wrapped his arms around her waist and pulled her close.

And then, the Titan alarm rang, destroying their 'moment'.

The changeling groaned as Raven broke away. "We should get going, or Robin's going to give us another one of his 'punctuality lectures.'" She said as she headed towards the common room.

Beast Boy just grinned at her supposed joke and followed her.

VvVvV

The team assembled in the common room as they listened to Robins briefing. "We got a call from the local police. Apparently a group of strangers are causing general chaos downtown." He said. "But get this. They aren't taking anything. They're just making a mess."

"So there's nothing they're after?" Cyborg asked.

"Correct." Robin confirmed.

"Sounds like a trap," Raven commented. "Like a plan to draw us out."

"Raven is correct," Starfire agreed and nodded.

Robin paced around, deep in thought. "Well, it sounds like something Slade would do. We'll go and clear things up, then we'll go from there." The rest of the Titans nodded. "Alright then, let's go."

Raven and Starfire flew out of the Tower, with Beast Boy as a Pterodactyl behind them. Cyborg and Robin both took the T-Car.

"How long?" Cyborg asked halfway through the journey, grinning.

"Heh, I'd say half an hour." Robin replied, referring to how long they thought the battle was going to last.

Cyborg chuckled, "Come on man, the way you put it, sounded like those dudes were doing major damage, I'd say an hour at least."

"We've got a half-demon sorceress, a changeling, an alien princess with super powers and a martial arts expert. I think we can handle them." Robin countered.

"Wanna put money on it?" Cyborg dared, his grin not leaving his face.

"How mu-" Robin couldn't finish his sentence as Cyborg suddenly slammed on the brakes as they entered the destroyed city center, causing him to nearly slam headfirst into the dashboard. "What the hell?"

Cyborg didn't reply, but pointed outside. Beast Boy, now in human form, was lying on the ground, next to Raven and Starfire. It appeared as if they had just suddenly stopped flying and fell out of the sky.

Robin immediately opened the door and jumped out of the car. He rushed to Starfire's side and helped her up. "What happened? Are you okay? Why did you all stop flying?"

Starfire smiled, happy that Robin was around her. "I am fine, friend Robin, and as for why I ceased flight, I do not know." Beast Boy stood up and slowly helped Raven up. Then, he transformed into a falcon to get an aerial view.

At least, he tried to. "My powers!" He exclaimed in shock and worry. "It's-It's not working!"

Raven tried to move a piece of fallen debris with her powers, but it remained stationary. "Mine's not working as well. Something must be messing with our them."

"Well, what do we have here?" A rough voice caught their attention. All heads turned to the direction of the voice. A group of strangers, all clad in white and red metallic armor, faced them. They were all armed with a range of weapons. The one who spoke raised his sword. "Kill them," He ordered his team.

"Oh no you don't!" Cyborg shouted and transformed his arm into his trademark sonic cannon. He got off a shot, but the strangers easily scattered, avoiding it. One of them threw something at the titan. It was a spider shaped object and it clung on the Cyborg's chest plate. Suddenly, his sonic cannon reverted back to his arm.

"Like it? It jams all your offensive abilities." The one who threw the device sneered, his voice a cross between the squeakiness of Gizmo and the threatening tone of Slade. "As much as I liked it to just kill you, I want to have your blood on my hands."

Robin assessed the situation. They had no powers, they were back to just regular teens. He and Cyborg could hold their own in hand to hand combat, Starfire as well, with her superhuman strength. But Beast Boy and Raven were helpless without their powers. "What do you want?"

"We made it clear." The apparent leader of the group of strangers replied. "We want your lives."

"Why?" Beast Boy shouted. "Why us?"

"Orders are orders." Was the reply. Almost instantly, the group headed for the Titans, weapons drawn. Robin drew his bo staff, just in time to block a swing from a spear that would have certainly sliced his head clean off his shoulders. These guys are serious! He lashed out with a kick, but his opponent easily dodged the attack and lunged with his blade, forcing Robin to jump back.

Cyborg was having an easier time. The spear did little damage to his metallic body parts, and due to his mechanical nature, he didn't get tired easily. However, his human parts were still vulnerable. He narrowly dodged a stab and attempted to grab the weapon, but the user expertly swung it out of the way. The mechanical teen swung a wild punch at his attacker, but his opponent blocked it expertly and pushed him back.

The attacker swung his blade at Starfire, narrowly missing her throat by were inches. "Please, why do you wish to fight us?" She asked and ducked to avoid a swing of the axe.

"We already told you," Her opponent said, his voice calm and level. "We want your lives. Orders are orders." He repeated the phrase.

"Who is it that is ordering you?" Starfire questioned as she jumped back to avoid another swing.

Her opponent gave a small smile. "Me to know, you to never find out."

Raven and Beast Boy did their best to stay hidden. They were unarmed, had no powers and were easy targets. "Come on, Rae, we gotta get out of here." Beast Boy urged her on as they stuck to the darker parts of the battle zone and attempted to sneak out.

"Tell me something I don't know," She replied in her usual monotone voice, not betraying a hint of emotion.

Beast Boy continued moving forward, but was suddenly stopped by one of the strangers standing in front of him, this one wielding a deadly spiked mace.

"Going somewhere?" He asked and swung his mace at the changeling's head. Beast Boy quickly ducked to avoid the fatal blow. Raven jumped back, the mace missing her by inches. "Not bad," The attacker complimented mockingly, then lashed out with a foot that caught Beast Boy in the stomach, knocking him back and into Raven.

Robin, Cyborg and Starfire were beginning to tire. No matter what they did, no matter how many hits they landed, the strangers never seemed to be affected or tire. Robin swung his staff, aiming for his opponent's head. He twisted his body to evade the blow and manage to get a hit on his opponent's stomach with his fist. He followed up with a kick to the face as his attacker doubled over.

However, his victory was short-lived, as another one of the strangers sneaked up behind him and caught him in a headlock, with his small sword positioned dangerously on his neck.

"Yo, you sure ain't gonna knife him!" Cyborg shouted, and quickly broke off from his fight and ran to Robin's aid, pulling the boy wonder's assailant off his back.\ roughly and throwing him on the ground.

Robin turned back and flashed him a smile. "Thanks," He said. Big mistake, as right when he turned back, his original opponent had recovered and slammed his spear into the boy wonder's stomach. Luckily he was much too close for the bladed tip to cut him open, but the wooden shaft still caused him to double over, and in the process, catch a knee in the face, causing him to fall back.

Cyborg had shifted his attention to both his original attacker and the one he threw on the ground. The one with the small sword had a maniacal grin on his face. "You know, I always wondered how you half-and-halves taste like." He said and licked his lips.

"You're insane." The mechanical teen heard his partner mutter as he threw one of his axes at him. Cyborg narrowly avoided the projectile.

"Whoah!" He exclaimed and was temporarily distracted. That gave the smaller attacker to jump on him, knocking him back, teeth bared. To the Titan's surprised, his teeth were jagged and sharp, like a dinosaur's.

"Mmm...Fresh...Meat..." He heard him utter with the same crazed smile. Cyborg's blood ran cold.

Is this nutjob gonna eat me!?

"Enough," Luckily, the carnivorous attacker was stopped by his partner. "You can have your meat. Once he's cold and dead." He twirled his sword and pointed the tip at Cyborg's neck. "Sorry, nothing personal." He said, nearly sadly. He was about to stab downwards, but then a green lion pounced on him.

"Get off me!" He yelled and punched the creature in the nose hard with his free hand. The creature immediately turned back into Beast Boy as he fell back onto the ground.

The attacker with the small sword was smacked into a wall by a rather angry Tamaranian.

"You will not hurt my friends!" She shouted in rage. If she had her powers, the young attacker would have been fried by over a hundred starbolts.

An arrow flew from the shadows of a building and pierced her arm. She fell to the ground with a scream, clutching her injured arm. The archer stepped out of the darkness, holding his crossbow. He had a disappointed look on his face. "Aimed for her heart," He grumbled. "Damn alien twitched." He shifted his attention to Raven. "Who wants her?" He asked and grinned.

"Just get it over with, you sickos." The one who knocked Beast Boy out said softly and threw a knife at the girl. Raven saw the knife and tried to jump out of the way, but it buried itself in her thigh. Like Starfire, she fell to the ground with an agonizing scream.

"Finish them," The leader of the strangers said calmly.

The axe user nodded and walked over to the nearest Titan, who happened to by Raven. He raised his axe and positioned it over her neck. "Nothing personal," He said with a devilish grin. "Just doing my job." He raised his axe over his head, ready to deal the finishing blow.

Suddenly, the axe fell out of his hands and onto the ground with a clang. His arms fell limply to his sides and his eyes widened, his mouth open like an 'O'.

"What's wrong? No guts?" The small sword user teased. "Then let me at her if he's too wimpy to do it." He sneered. Then, the axe user fell forward and they noticed the knife sticking out of his back.

"Assassin!" The leader shouted and they all looked to the building tops, temporarily forgetting about the Titans. "Show yourself!"

As if on cue, a figure leapt from the rooftops and landed on the other sword user. His left hand pressed him down by the shoulder, his right knee on his target's shin and his left foot on the ground. He raised his right hand, flicked his wrist upwards and a long, thin blade slid out from the vambrace he wore. Then, he quickly slammed the blade into his victim's neck.

All this happened in less than 30 seconds.

"If you so wish," The assassin said in a low voice. Then, he drew the shortsword sheathed at his right hip, gripping it tightly in his right hand. "Leave them alone." He said slowly. "And live. Stay, and your lives end here."

The leader roared with laughter. "One of you, against four of us!" He exclaimed. "Check your head, boy, it's not a fair fight."

"You're right." The assassin replied. "It's not fair unless it's ten to one." He said, taunting the strangers.

The leader, angered, charged forward, raising his sword. He swung it down, but it only cut through the air. The assassin side-stepped, slammed his blade into his assailant's neck pulled it out and, pointing the blade backwards, stabbed the small sword user in the stomach. Then, he swung around and sliced the same warrior's neck open.

The remaining two looked at each other, all not wanting to be the one to attack, so the assassin had to prompt them. He drew a knife and threw it at one of them. It missed and struck the ground behind, but it convinced the halberd user to charge. He closed the distance, swing his weapon wildly. The assassin expertly dodged all his swings and stabs until he had to perfect opening.

The halberd user, in his anger and fear, swung too hardly to the right, exposing his vulnerable stomach. The assassin didn't hesitate, he closed the distance and slammed his blade into the attacker's abdomen, pulled it out and stabbed him once again through the heart. He pushed the body roughly to the ground and threw another knife, catching the spear user in the stomach. Then, he closed the distance and slashed his victim's neck open.

Convinced the fight was over, he sheathed his weapons and ran to Starfire's side. Robin was up, but was clutching his stomach. He saw the assassin, and thinking it was one of their attackers, staggered as fast as he could to her and shouted, "Get away from her!" He raised his bo staff weakly.

"Calm down, I'm not against you," The assassin replied in a deadpan voice. Then, he looked up at Robin then down at Starfire. "Not too bad, didn't penetrate the bone," He said and lifted the unconscious Starfire's arm. "It can be treated. Get her to a medical facility at once."

Beast Boy came to at the moment and sat up, looking around while holding his head. Then, he spotted Raven, unconscious on the ground, a knife sticking out of her thigh. His eyes widened. "Raven!" He shouted, panicking and ran to her side. "Oh no," He whispered and tears threatened to fall. How could I let this happen? If I had just stayed... He blamed himself.

His hand reached for the knife and grabbed it, about to pull it out. A hand on his wrist stopped him. "Don't," He said gently. "It'll make the bleeding worse." He explained. Beast Boy did not recognise the voice. He turned around to see who it was.

It was a teenager, roughly around their age. He wore a black longsleeve shirt with a white hoodie over it. A white leather chest plate, secured tightly by straps, covered his body. His arms were protected by white vambraces and white shoulder plates, both leather and secured by more straps and buckles. His hands were both covered by half gloves. A longsword was sheathed at his hip, held there by a belt. A shorter blade was sheathed on the other side.

White leather armor plate covered his thighs and calves, over his black combat trousers, which were tucked neatly into his white greaves. A belt around his waist held his throwing knives, ten in all. There were straps all over his body, holding his armor in place and securing his weapons on his body.

"Who are you?" Beast Boy asked, his voice full of suspiscion.

"A friend," The assassin answered cryptically. "Take this." He handed Beast Boy a note. "Read it somewhere safe and secure."

Beast Boy nodded dumbly and took the note.

"Alright, may I see her wound?" He asked and gestured to Raven's still form. It was impossible to see whether he was worried from under his hood. Beast Boy again nodded and stepped aside. The assassin knelt by Raven and ran his ghostly pale fingers deftly over the skin around her wound. He made sure he didn't disturb the knife as he examined the wound.

He stood up and shook his head. "It's bad, but not fatal. She might not be able to use that leg for the next few days, but only if you get it cleared up quickly." He said, his voice devoid of emotion, which would have been creepy, if not for that soft Scottish accent in his voice. "I'm done here." He said and turned to leave.

"Wait!" Beast Boy called after him.

"What is it?" He looked back and asked, irritated.

"What's your name?"

The assassin paused, as if deep in thought. Then, he said, "Phantom. Call me Phantom." With that, he ran straight towards a building, placed one foot on the wall and pushed himself upwards and grabbed the ledge of the roof. He pulled himself up onto it and fell from view.

Robin came over, carrying Starfire on his back. "Come on, get Raven." He said hurriedly. "We have to go."

Beast Boy nodded. "I fly faster, I'll get us back and see what I can do." He turned into a pterodactyl and held Raven gently in his claws and sped back to the Tower, his mind thinking the same thing over and over again throughout.

Please be okay.

END

So...How was it? Good? Bad? Atrocious? And uh...If you got confused with the fight scenes, sorry about that, I'm not really good at writing those. My bad.

And I've already got chapter 2 written, but I just need someone to read this so I can improve on it. Any hints to help my writing would be greatly appreciated!

EDIT: Chapter 2 is rewritten.

~Schizo