Many moons ago, it was late summer and early autumn and there were four turtle toddlers playing around in the tunnels of the sewers, smiling and laughing as they raced each other. The two turtles up front were Leonardo and Raphael. The two turtle toddlers ran through the tunnels, splashing on the way. "C'mon Leo. At this point, I might beat ya." The red bandanna wearing toddler taunted. The other smirked playfully. "Not if I can make it there first." The turtle in a blue bandanna retaliated. The other two in the back managed to catch up. "Nu-uh I'm going to win this one," The younger turtle in an orange bandanna rushed up to them.

"In your dreams, Mikey," An olive green turtle in a purple bandanna spoke, using Mikey's head to leap over him. Like in leap frog basically. "Not fair, Donnie." Mikey pouted but was quick to catch up to them. The race was getting intense to the point that the brothers were neck to neck in the race. That was until Leo stopped suddenly. The others bumped into each other, causing them to look at the eldest of the brothers. "Leo, what the heck's the problem?" The turtle tot in red asked. "Quiet, Raph," Leo commanded. Raph only huffed but kept quiet.

Good thing that Leo stopped. Why? Well, not too far from them, they heard footsteps rushing. As quickly and as quietly as they could, they hid in the shadows. An inhuman figure rushed passed the area they were in. "Who was that?" Don asked. "I don't know. Let's go check it out," Mikey was quick to say and even faster on his feet. "Mikey no!" Leo yelled. "Mikey!" Raph joined and chased after his younger brother. The other two had no choice but to follow after their brothers.

After a minute of chasing, they found the red and orange bandanna wearing turtles peeking around the corner. "Whatcha seeing?" Leo asked. No one answered him. Instead, they were all just staring at the inhuman figure from afar. The being set a smaller person down. The soft voice reached to their well-trained ears. "Mommy... Is everything okay?" The taller pulled her hood down, revealing to be a rodent-like their Master Splinter. "Yes, everything will be fine." A womanly voice spoke to the smaller person. A furred hand rubbed the top of the little girl's head before the rodent's arms lifted her and placed her near a crevice in the wall. "Hide, now. I don't want those men finding you."

"What about you, Mommy?" She asked. The rodent only smiled with tears in her eyes. "Oh.. I wish to tell you the same," She spoke in a soft tone. The light-colored mouse sniffed around and twitched her whiskers. "They're getting closer. You should hide now, little bell. I'll draw them away," She explained. The little girl nodded and hid in the crevice. The rodent looked around, hearing the footsteps run closer to their area. She ran out into a clearing and yelled at the men in suits to get her. They ran towards her and chased her off.

The Turtles Tots had hidden in the shadows while this transpired. "Who do you think that was?" Donnie asked. "I don't know... but I think we should help the little girl," Leo said. Mikey nodded at that, "I'm going with Leo." Raph just huffed, "I don' think it's a good idea." Donnie responded with, "When is helping someone a bad idea?" The argument would've continued if they hadn't heard an "ahem" behind them. They froze at the familiar tone of the voice and turned to him.

"Master Splinter/Sensei!" They yelped at his sudden arrival. "Might I ask what you four are doing?" The gray rat asked. "We were just playing and then we saw someone run by." The olive green turtle in purple began. "We followed her here and she set down a little girl here." Leonardo continued. "Yeah, and the mouse left her while some men chased her somewhere else." The dark green turtle in red spoke, "So, the little girl got left here?" Splinter asked. The three turtles nodded at him. "And I see that Michelangelo is trying to sneak off." Mikey gave a small squeak when his father noticed him.

"Aw, come on Sensei. Can we at least see if she's okay?" The turtle in orange gave big eyes, hoping for a yes from his father. Splinter knew that if he said no, Michelangelo wouldn't leave him alone. Besides, even if he had to go with his instincts, morality would overrule it. The gray rat sighed. "Let's go see her." The turtles smiled and rushed forward while Mikey grabbed his hand, leading him to the spot she was hidden. Splinter watched as his sons stopped at a large crevice. "Here. She's in here."

The gray rat looked to see a small figure hiding away. "Child... are you alright?" He asked softly. A small whimper of fear escaped her. Splinter looked a little confused at that and said, "Be calm. I'm not who you think I am. Please, come out of hiding." He stretched his arms out to her. She looked at him with a scared expression on her face. Her eyes scanned and examined him, but she saw nothing except a kind smile on his face.

She reached a hand out to him and her hand wrapped around a few of his fingers. The boys jumped back at the claw and hid behind their father, shutting their eyes. She stepped out one step at a time while the Sensei carefully stepped away, helping her walk out. When the turtles looked to see her, they saw... someone like them, but different. She had bright yellow, almost golden skin with brown leopard designs. She looked to them and they saw orbs of blue-gray marble. Mikey was the first to approach her.

"Hi," he said enthusiastically. She jumped at the pitch of his noise and moved closer to the rat. The gray rat chuckled at her, "Do not be afraid. That is just one of my sons, Michelangelo." The lizard watched as the other three turtles came out of hiding. Each of them had different colored bandannas. The oldest of them had a blue bandanna. Second oldest had red. The third oldest was wearing a purple bandanna. Lastly, Michelangelo had an orange bandanna.

"Hello, I'm Leonardo." The kelly green turtle in the blue mask began. "That's Donnie" He pointed to the yellowish olive-green turtle in the purple mask. "And he's-" Just as he pointed to the dark green turtle in red, he got cut off by him. "I'm Raphael." He extended a hand out to her. She only looked at it. "What's the matter? Never shook a hand before?" He asked, getting a little attitude in his voice. The Sensei sensed the change and set his walking stick between his sons and the little lizard. "Raphael, please-" Just as he was about to finish, he heard footsteps and voices.

"She came from this way. Over here." A masculine voice ordered. Splinter looked to his sons. "Disappear, my sons." They nodded and obeyed their master. The gray rat turned to the child, leveling down to her. "Hold onto me, little one." She nodded and wrapped her arms around his neck, gripping onto the fur slightly. He fought back a wince and jumped to the ceiling pipes, grabbing onto them and swinging himself up. He saw four other figures and smiled at them. He taught them well, but they still have much to learn.

He crept silently above the men and motioned for the others to follow. One by one they began to move and the noises of the men were becoming more and more distant. The little lizard still gripped onto the rat and nuzzled her head into his neck fur. The rat smiled and landed onto the ground, finally near their home. The four turtles had already run in and so the rat followed after them, smiling softly. Gently, he placed the little lizard down and watched as she looked around in a childlike wonder.

She backed away when the four approached her, though. "So.. uh, you have a name, don't cha?" Raphael asked. She only shook her head. "Mommy would always call me a little bell, though." Don shook his head, "No he means like an actual name like ours." The rat sighed before wandering around the lair to his area and finding the Italian Renaissance book. 'Perhaps, there would be a name in here for her.' He thought and began turning the pages. 'One that she would easily respond to but one she is comfortable with.' "Ahem. Child... could you perhaps help me with something?" Splinter asked. She nodded and went to him. He simply patted the spot next to him.

"Please, have a seat," he said, not looking up from the book. She hesitated but obeyed when she remembered how kind he was to her. "*sigh* Now then, would you like to help me pick a name?" She thought for a moment before nodding softly. "Let's begin then... Anastasia?" She shook her head. "No... Lucrezia? No. That doesn't fit you either." "How about Mona Lisa?" Mikey suggested. She looked at him, seeing his eyes full of hope before shaking her head, much to Mikey's disappointment. The rat sighed at his son's attempts and continued.

He looked to see a name. "Hmm... Perhaps... Isabella is the name for you." She quickly looked back to him and smiled in agreement. "Yes, Isabella it is then." He put the book down. He smiled and patted her head softly. The lizard smiled brightly at him before asking, "What about Mommy?" The rat paused and sighed. "Child, I saw her being chased and with how the situation looked, I fear that she's not going to come back." The leopard gecko looked up at him and he was forced to watch her hope of reuniting with her parent being shattered. He sighed and opened his arms. She hesitated for a moment before hugging him.

"Sensei," The rat looked to Michelangelo. "Can we keep her?" Splinter could see that his son had so much hope in his eyes, so much life that he wished he could have. 'It would be unfair to just leave her out there... Maybe... Just maybe...' The turtle toddlers have already gathered around at this point to hear his answer. He looked to the leopard gecko, now named Isabella, and spoke. "Child..." She looked up to him, "Would you like to be a part of our family?"

The gecko gazed around and saw that the boys were excited or hesitant to accept her. Her eyes went back to the rat and she could see the same kindness that the mutant mouse had. With a smile, she nodded her answer. "Yay! We have a little sis now!" Mikey exaggerated and forcibly hugged himself to Isabella. "Mikey, leave her alone. She needs to breathe, ya idiot." Mikey had let go just as Raph tackled him. Isabella watched as they both rolled away.

Splinter sighed while Donnie rolled his eyes at them. Leonardo went to his father and asked, "Sensei... Will she train with us?" The two turtles had stopped fighting and everyone looked between the lizard and rat for an answer. Isabella shifted underneath their gazes uncomfortably. The gray rat noticed this and spoke, "In time, she will give us an answer. For now, let's allow your new sister to settle in." They nodded in understanding right before each of the turtles pulled her off to their activities.

Author's Note: I know... I know... You guys really want me to continue Elemental Confessions and ShortMetal OneShot Collection, but... I haven't really had many ideas of how to continue it so... I went to watch other shows to maybe get some sort of inspiration, but instead I find myself creating a fanfic mostly centering on an OC that I've had for a little while. Of course, this was sitting around in my documents for a little while and then I decided to finally have it edited and now... here it is.

Now I finally get the chance to say, "Welcome to TMNT 2003: Sister's Story."