Hi guys! Ok, so lately I've gotten in TMNT. Can't help it, it's an amazing show and the boys are hilarious, especially Mikey and Raph :) Anyways, I haven't written anything for my past two stories so i'm sorry if you're hoping and praying to get an update for one of them but it wont come :( Just lost the interest in them both. Anyways, Trinity is in this story, in case you're wondering and again, I got permission from my friend to use her. She's so awesome :D

Chapter 1:

Meet the Boys

"C'mon guys! Try to keep up!" Mikey taunted his older brothers as they did their nightly run across the rooftops of New York. Just a normal training exercise like every other night. Purple dragons have kept pretty quiet and same for the Foot ninja. Unfortunately, that meant that Raphael wasn't able to let out his aggression as much as the others would have hoped for. That also meant that Mikey was being used as more of a punching bag for him.

"Will you shut up?!" Raph yelled coming in line with his youngest brother as they jumped across an alley way below. Leo and Donny could only look at each other as they watched the anger rise in the red banded turtle ninja.

"Guys knock it off." Leo ordered his brothers as they stopped on the edge of an apartment building.

"Seriously. Splinter gave specific instructions to hone our skills. It makes it a little difficult to stick to the shadows when the two of you are arguing the entire time." Donny explained.

"Well things would go a lot easier if shell for brains over hear would just keep his mouth shut." Raph pointed over to the orange banded turtle. He was looking down into the alley not paying one bit of attention to his mocking brother.

"Mikey? What's up?" Leo asked looking down as well.

"Listen." All four of them walked over to the edge. "I think I hear someone struggling."

"Get off of me!" A female voice cried.

"Let them go Hun! This has nothing to do with them." An all too familiar male threatened.

"Is that?" Raph whispered to his brothers. "Casey?"

"Sounds like he's in trouble." Leo said running his hands on the handles of his katanas strapped to his back.

"And it sounds like April's with him." Donny pointed out.

"Let go of me you big ape!" A second female voice shouted. "I'm warning you!"

Hun walked over and grabbed the girl around the throat causing her to gag. "Or you'll do what little missy? You're not exactly in the best place to be making threats."

"Leave my niece alone Hun." April yelled trying to get away from her captor.

"She has nothing to do with the guys now leave her alone." Casey yelled while punching one of the purple dragons in the face with his free hand.

Suddenly, Casey's face twisted into pain as he fell to the ground.

"I've had enough of you Jones." A masculine man with blonde spikes smirked holding up a freshly bloodied blade.

"Casey!" The two girls yelled as the four brothers jumped in between the attackers and their friends.

"Boss, it's the freaks!" One of the young men announced.

"Hun, what couldn't find anybody else to pick on tonight?" Raph taunted the two-ton human while pulling out his sais and twirling them in each hand.

"Why don't you go crawl back to the sewers that you came from?" Hun smirked bringing the girl to the front of him to use as a shield, her legs dangling in the air. He knew that it wasn't in the turtles nature to harm a human. She had gripped his massive arm with her hands trying to escape his grasp.

"Trinity!" April yelled then struggled just enough to free an elbow to strike her opponent with in the face sending him backwards with a bloody nose. The red head knew that her friends could get her niece free and she chose to run over to Casey to check his wound. The four brothers faced off against Hun with their weapons bared as his accomplices stood behind him and the girl.

"I said. Let. Go. Of. Me!" The girl firmly ordered before pushing off with her legs from his body, twisting her torso, and swinging them up and over his shoulders causing him to release the grip around her neck. Using her new angle she flipped back down, landed on her hands and bounced over towards the boys.

Now that the girl was no longer being used as a baraganing chip, Donny, Raph, and Mikey charged forwards and started clanging their weapons against the Purple Dragons'. Leo sheathed both of his blades and caught the girl before she could bound back anymore.

"Nice moves." He said settling a hand on her outer hip and the other on her shoulder.

Since the turtles and the girl were about the same height, she looked over and gave a half smirk. By the look she gave him, he wasn't too sure if that was something that they should have seen or not. "Thanks."

"Are you going to be alright?" He asked making sure she could stand on her own after a depletion of the much oxygen before letting her go.

"Yeah, I'll be fine." She answered then looked over to her aunt and an unconscious Casey.

Leo took that as an ok and charged forward to fight alongside his brothers.

Trinity rushed over to the two humans. "Is he ok?"

April looked up with watery eyes. "He's been stabbed and the wound is deep. The blood won't stop."

Trinity took off her top plaid shirt leaving her in a white tank top. She wadded it up into a ball and placed it on the wound.

"What are you doing?" April asked.

Trinity kept a constant lock on the task at hand. "I'm putting pressure on his would to slow down the flow of blood until he can get some medical help."

April took her eyes away from her niece to watch the boys. Their weapons clanged against the opponents'. One thing that she's noticed since first meeting the boys that they try not to kill unless absolutely necessary otherwise they will use the blunt end of their bladed weapons to knock them unconscious. They had most of the Purple Dragons' already beaten and only a few remained and of course Hun was still standing.

"Raph grab Casey and head back to the lair. There's too many and we can't let April or her niece to be harmed." Leo ordered. Raph sheathed his sais and ran over to his friend. Trinity stood up quickly and helped get Casey on his shell.

"Guys let's go!" Raph ordered already leading the two girls away from the scene. Trinity turned back around to see that the three brothers had put their weapons back and were now following them.

Mikey, being the fast one caught up quickly and headed for the nearest manhole to pull back the heavy slab of metal. Raph was the first to jump, then Donny helped April and Trinity down, then Leo ordered Donny and Mikey to go down first before himself and covered the hole in the street.

The sound of the numerous number of feet trudging through the water was echoing off the brick and cement walls of the sewers.

"Shouldn't we take him to the hospital where he can get real medical attention?" Mikey looked over to the long haired man currently hanging on to his brothers shell. "I mean no offense Don, but you're no doctor."

"Would you rather we take him up top with all those Purple Dragons running around?" Leo questioned his brother already knowing the answer.

"Ok, what are the Purple Dragons?" the girl named Trinity asked.

"They're a gang that runs pretty much most of the city. The big blonde dude that had a hold of you is their leader Hun." Raph answered hefting Casey higher on his shell as he would keep sliding. "Geez, Case, you need to lose some weight bud."

"Are you alright by the way?" Donny asked looking back at the girl. He was leading the group while Leo held the rear in case someone was following.

"Yeah, I've never seen anyone still breathing regularly after Hun had a hold of them." Leo stated marveling at the girl's slim figure trying to figure out how she was able to maneuver her body enough to weasel out of Hun's grasp. She wasn't skinny but there probably wasn't an ounce of fat on her either. Her pale tank top hugged her every curve and the straps allowed her muscular shoulders and arms to be seen. Her dark blue denim jeans were becoming soggy below the knees with each step causing them to cling to her slender calves. She was April's niece but looked completely the opposite from her aunt. She had a dark tan tone to her skin and her dark brown hair was long and currently up in a ponytail swishing from side to side as she walked.

She glanced to him out of the corner of her eye then over to her aunt. "Let me just say it would take a lot more than that to know me out."

April glanced over to her niece obviously trying to figure out what she was saying.

They finally made it to the lair and once inside the boys made a place for Casey to lie down and rest. When he was set down he started to moan in pain. The stab wound was on his lower abdomen and was probably causing some internal bleeding according to what Don informed but like he said before he wasn't a licensed medical doctor.

"So, what should we do?" Leo asked crossing his arms looking down at his friend.

Donny rubbed his head in his hand trying to come up with a solution. He knew that they only had so many supplies but not the ones that would be the best for Casey's current condition. One thing that he did note was that Casey was now breaking out into a fever which was definitely not a good sign.

"He does not need a doctor we have a healer in our presence." Splinter said walking out of his quarters. "It has been a while." He bowed.

"Uh, Master Splinter what are you talking about?" Donny asked scratching his head.

The room was quiet until they all heard Trinity sigh. They looked at her and she turned towards her aunt. "Aunt April, I am so sorry that I didn't tell you but there is a very good reason. Please don't freak out at what I'm about to do and please don't tell Marcus and Mary Anne. They can't know about this. Please."

April put her hands on Trinity's shoulders looking deep into her brown eyes. The boys looked back and forth to each other confused. "Trinity, sweetie, what are you talking about?"

The dark haired girl shrugged off the gesture and walked over to Casey. "You guys should step away from him." Then her eyes turned into golden orbs. "Now."

The brothers stared at her wide eyed and slowly backed away from the wounded man as her hands began glowing blue. She stepped over his body swiping her hands just inches over him. Then she came to his open wound. His shirt was ruffled up enough that the stab was visible and she began her work. Splinter walked over to her side and watched as she concentrated on the injury. The boys couldn't help but examine the girl, they didn't know whether to be weary or trust that their father truly knows this girl. Her gaze was soft as her blue hands began to pulsate and to their amazement the wound started closing and repairing at an extremely fast rate. Something that, if the turtles weren't watching for themselves, wouldn't be believable.

As soon as the wound healed completely, leaving no scar behind, Casey's eyes slowly opened and he took in a huge breath as he sat up.

"Casey!" April happily cheered then lunged for him wrapping her arms around him. "You're ok."

"Yeah, I am. Actually I feel great." He said checking himself over. "How?"

Trinity had backed away when her aunt charged for him eyes returning back to normal and hands no longer glowing.

"Yeah, how?" Raph asked being suspicious of the girl.

"Relax Raphael, if I wanted to do any harm to you guys I would have already." She said glancing over to the mutated rat.

"Please accept my apology Trinity. I did not know that Miss O'Neil was your aunt and that she did not know about your…situation." He bowed towards the girl.

"It's alright Splinter. Apparently, though, I'm not the only one who has secrets." She looked over to April. "I'm so sorry I never told you about this. I mean technically, you're still not supposed to know about it."

April walked over to her niece. "It's alright sweetie. Just…" She looked down at her hands that were currently holding Trinity's. "I mean how? I've known you since your mom brought you home from the agency. Did you get into…something back home?"

"No, I'm…I'm not." Trinity glanced over to Splinter and his sons, eyeing each and every one of them. "I'm not…human." She breathed the last word.

April cupped the brunette's cheek. "What do you mean you're not human?"

"I know it might be hard to take in, but I'm an alien." She looked up at her aunt trying to see if April was able to comprehend all this without running away. When April was still with her she took in a breath and proceeded. " I'm called a Half-blood. I'm half Zythian and half Crolovian. They are two very strong and powerful alien species that were in a war that tore the planet apart. Which is how I was adopted by your sister when I was a baby. The war started because of me."

"What do you mean you started the war?" Leo asked coming around the table to stand next to his father. Casey rose into a sitting position also wanting to listen in on the story.

"It is because she was born." Splinter answered. By this time April had taken her hands off of Trinity to go over to Casey and make sure he was really alright. "You see my sons, Zythians and Crolovians are not supposed to fall in love with one another. Zythians consider Crolovians to be a weaker species and it is considered a disgrace to have feelings for one and is looked down upon to have a child between the two. But what made Trinity's situation special is that her mother, her real mother, came from royal bloodlines which caused huge uproar throughout the Zythian community."

"Uh, Master Splinter how do you know all this?" Donny asked.

"I met Trinity years ago at the Battle Nexus."

"So you fought in the Battle Nexus?" Mikey gleamed with excitement.

The three brothers shook their heads as Raph balled up his fist getting ready to strike the little brother if he were to mention the victory.

"She is not allowed to fight my son." Splinter glanced over to the young girl to see her smirking. "Her species is considered too strong to fight the other competitors. It would not be a fair fight." He smiled watching as the gloating look on Mikey's face faded away.

"This doesn't explain why you couldn't tell me any of this." April said sounding a little disappointed.

Trinity sighed. "It wasn't because I didn't want to, it was because I couldn't. I'm instructed not to let the public know who I am in public. It would be considered not only a danger to me but to my family and friends. I'm dangerous enough but so are the ones that are out to get me."

Trinity's face became sad as she looked over towards Splinter and Leo. "It's also not only my choice but also the governments. April you remember Hunter and Stark right?"

She nodded her head then her eyes grew wide. "You mean they're like you?"

"Not exactly. They're full blooded Zythians, but otherwise yes."

"Wow." The brothers said in unison. Trinity and Splinter laughed.

"How are you feeling Casey?" Trinity asked looking at him.

"A little woozy to be honest. What did you do to me?" He asked.

"It's one of my abilities that I have. Part of being a Crolovian means I have this skill to manipulate a certain type of energy that's around us. It's a matter that's found in Crolovian blood and comes in handy when I need to heal myself or someone else."

"So, it's not going to do anything freaky to me is it?" He said glancing himself over for some abnormality that might have showed up.

She smiled and chuckled. "Nothing stranger than you already are, Jones. It just sped up the process of your body's natural way of healing itself."

"You're amazing. I mean, what else can you do?" Donny said stepping away from his brothers towards the girl.

Leo noted how quickly her facial expression changed. It had nothing to do with what his brother asked but because of the fact that he was moving closer and she didn't like it. He was getting ready to reach for his swords when hers eyes quickly shifted over to him staring at him and halting all movement. She closed her eyes and sighed, something he noticed that he does when trying to calm himself.

"You'll just have to find out later." She said watching as the scientist walked around the girl.

"What, might I ask, Trinity are you doing here anyways?" Master Splinter asked while prying Donny away from the girl. He had noticed her uneasiness too.

"Well," She looked over at her aunt. "I'm not exactly here to just visit." Then back to Splinter. "I'm here to follow up on some business. We were told that there was a Zythian in town and I'm supposed to check it out. Orders from Jefferies."

"Who's Jefferies?" April asked.

"That's something else I forgot to tell you." She looked down at her feet for a second before glancing at everyone in the lair. "I work with a classified part of the government. They make sure that people aren't in any danger with my kind. It's sort of like them keeping check on us and that our fights don't put the public in harm's way. Jefferies is the man in charge of us, or at least the 'us' that aren't out to do harm."

"So does that mean that you know Bishop?" Mikey asked not really using the brain to mouth filter.

She glared at him for a second and her eyes started glowing gold "Knew." Then her eyes turned back to normal. "Let's just say we're not on good terms. He used to work with us until he got a little too friendly with the scalpel."

"Been there before." Raph grunted. The brothers all nodded their heads at the horrible nightmares they've encountered with Bishop.

"Let me just say that it is a pleasure seeing you again young one." Splinter bowed once again to the girl out of complete respect.

Let me know what you think ;)

There is going to be an interest between one of the guys (or two) and Trinity but haven't decided which one yet. I know the ending isn't the best but it was getting a little long, so I decided to end it there.

Ready. Set. Review!