This is the final part of the Dimensional Guards Trilogy. Hopefully all questions will be answered. Not only does this fan fiction crossover with Code: LYOKO and Gargoyles, but it also mentions Chaotic. I do not own any of the mentioned shows, but all original characters are mine. Feedback is greatly appreciated. Please enjoy the final piece of this trilogy, Manhattan Fights.

Fair warning: I am using some Japanese in this chapter, but there are English translations. So you know, I am learning Japanese, but I am learning from books.

If my translation is wrong, I apologize ahead of time and feel free to send me a message to tell me. I'm pretty sure that I haven't said something to insult anyone.

Yin sat in front of the enormous silver mirror that allowed glimpses into other worlds. Her hands fumbled a puzzle cube, but her attention was focused on the mirror. Her plum painted lips moved silently.

Maj stood in the doorway watching Yin with a concern look. Ever since the Inter-realm Interlude mugic was cast and the trouble had escalated to XANA moving its empire to Perim, Yin was either sitting in front of the mirror or who-knew-where. Each passing day, Yin grew more agitated. Maj could understand why. The captain was riding both their cases about what had happened, but it was Yin who was taking most of the harassment. Yin was used to it, of course, since she was not the most orthodox of them, but Maj could see that she was reaching her breaking point.

The puzzle flew across the room and smashed into the wall.

"Yin, breaking a puzzle cube won't solve anything," Maj said.

Yin whipped around, her dark eye flashing. Maj flinched, not at her dark eye, but at the left eye that was currently uncovered. Yin rarely uncovered her left eye. At the moment, her left eye was a rich blood red.

"And sitting here waiting for the captain to decide to take action won't either," growled Yin, turning back to the mirror. "The idiot! It's a good thing that I gave those kids the means to get to Perim or XANA would have taken control by now. I told him, didn't I? I told him that something was wrong."

"Yes, you did," Maj said quietly.

"Darn right!" snapped Yin. She sighed heavily. "I don't understand. Why XANA? You can't control it. Even its creator failed."

"Is it possible that it has found a way to the other realms?" Maj asked.

"Doubtful," said Yin. "I have been searching for a way that XANA could use, but found nothing. It had outside help. Most likely from whoever created the tear."

"But the mugic," Maj began to say.

"Mugic doesn't cause that much damage," Yin cut in. "No, this is something more. There is an agenda here that has yet to be seen. And I stress 'yet'." Her red eye glimmered as she spoke.

"Okay," said Maj. "What should I tell the captain?"

"Anything you like," said Yin. "I leave the story up to you."

"All right." Maj turned to leave.

"Oh, no!" she heard Yin say.

Maj turned around. "What?"

But Yin was already gone.

"Come on, Ulrich," said Kayla. "I know you can do this."

The seven of them were in the gym. Kayla was trying to teach Ulrich how to dance. Beside them, Eva and Aelita paused to look at Kayla and Ulrich.

"I'm trying," growled Ulrich.

"Here," said Eva. Eva took Kayla hand. "Ulrich, watch."

Eva waltzed Kayla around the gym with ease.

Ulrich sighed heavily. "You make it look so easy."

"It is easy compared to some of the stuff I do," Eva said. She let go of Kayla and proceed to stand on one hand and spin, her body completely vertical. "Now if you would rather try that."

"No, thanks," Ulrich quickly said. He turned to Kayla. "I would like to try again."

Ulrich and Kayla tried again.

"Your turn, Yumi," Eva said, extending her hand.

"Okay," said Yumi.

"This is fun," said Odd. "But I wouldn't mind learning some of those insane moves of yours, Eva."

"Maybe some other time, Odd," Eva said.

Kayla smiled at Ulrich. "See? You got it. Okay, Jeremy. Your turn."

"Um, I'm not sure that's a good idea," Jeremy said. "I have two left feet."

"You can do it, Jeremy," Aelita said.

Jeremy took Ulrich's place and in no time he was being swept around the gym by Kayla.

"I better get going," said Yumi. "My parents will be wondering where I am."

"Same here," said Kayla.

"Same time tomorrow then?" asked Aelita.

"Sure," replied Kayla.

Yumi and Kayla walked home and the others went back to their rooms until supper.

The next morning, Yumi walked to school by herself. Hiroki was ahead of her with some of his friends. At the gate, Yumi saw a woman with black hair, wearing jeans and a hooded vest. She looked up as Yumi came up to the gate.

"Ohayo gozaimasu, Ishiyama-san," the woman said.

Yumi froze. The last thing she expected that morning was for some strange woman speaking to her, and in Japanese!

"Donata desu ka?" (Who are you?) Yumi asked.

"Yin desu," (I'm Yin.) The woman replied. "LYOKO senshi no tasuke ga irimasu." (I need the help of the LYOKO warriors.)

"Nani?" whispered Yumi in complete shock. How did this woman know about LYOKO?

The woman leaned close to whisper in Yumi's ear. "I'll be at the factory. Meet me there and bring everyone."

The woman walked away. When Yumi turned around to see where she went, she was nowhere to be found.

"What?" the others asked in unison when Yumi told them at lunchtime.

"I'm just as surprised at you are," said Yumi.

"I don't like this," said Jeremy. "How could she possibly know about the factory?"

"Ulrich, no one stole your diary again, did they?" Odd asked.

"No," replied Ulrich defensively. "I have it hidden in the one place where no one would dare to go."

"What should we do?" asked Kayla.

"If this woman knows about LYOKO, there's a good chance that she's working with XANA," said Jeremy. "She could easily destroy LYOKO. We'd have no way of defeating XANA if she does."

"But why tell us?" asked Aelita.

"Any thoughts, Eva?" asked Ulrich.

They all turned to Eva. Eva sat quietly with her hands folded and her chin resting on them. She thought for a long moment before answering.

"We go to the factory," Eva said. "But we do not go unarmed. We'll take the tunnel in the boiler room so no one sees us. Kayla, Yumi, can you two sneak out tonight?"

"Why wait?" asked Yumi. "We'll go now. She may think that we won't come until after class."

"What are we waiting for?" asked Odd. "Let's go."

The seven of them went to the dorms and got their specter bands. They hurried to the boiler room and entered the tunnel. At the factory, they quietly entered the corridor, deciding against taking the elevator.

At the top of the ladder that led to the supercomputer, they could see the woman that Yumi had described to them sitting in the chair.

"I was wondering what time you would get here," she said without turning to face them. "Come down. I won't bite."

The seven of them climbed down the ladder. The woman rose from the chair and faced them. There was an odd smile on her face.

"Oh, good," she said. "You brought your specter bands with you."

"How do you know about them?" asked Jeremy.

"Who do you think sent you the plans to make them?" the woman asked.

"Lady, you have a lot of explaining to do," said Ulrich.

"You're right, I do," the woman said. "Let me begin with my name. I am called Yin Tale Teller de-Roux. I am a dimensional guard. I keep watch over the dimensions and expunge things that do not belong in the dimensions. Unfortunately, I have not been diligent. Someone has created a tear in the barriers that separate the different dimensions. Whoever has done this is trying to take control of XANA and take it out of your dimension."

"Can't you do anything about it?" asked Kayla. "Why drag us into it?"

"It became necessary to find outside help," Yin explained. "I am only one guard. I have told the others what is happening, but they won't believe me. They think the tear was just a freak accident brought on by events that were unforeseen and that I'm just looking for someone to blame for my laziness. But I know they're wrong. The only other guard who will side with me cannot do anything without arousing the suspicions of our captain. We aren't supposed to be investigating."

"Even when XANA escaped our dimension?" asked Odd. "I would think that would raise a red flag."

"So did I. I sent you to deal with XANA while I looked for whoever sent it to Perim. The only thing I found was a tear in the barrier, which I sealed. I'm starting to think that it wasn't a good idea. I destroyed my only evidence to prove my case." Yin's eyes flashed as she spoke.

"I need your help again," she said. "Before you had little trouble with defeating XANA. I hope you will do it again. This time, it's a bit more difficult."

"We'll help you," said Aelita.

"Aelita," Jeremy began to protest.

"No, Jeremy," she said. "XANA is a threat to all mankind. We cannot let it win." Aelita looked at Yin. "What do you need us to do?"

"I have a lead of who is the cause of all of this," said Yin. "Unfortunately, I cannot be in two places at once. My full attention must be on finding this person. That's where you come in. XANA is making its move on another dimension with the aid of this mystery person."

"Great," groaned Jeremy. "Another three weeks in the factory with Kiwi."

Yin turned to Jeremy with a smile. "Not this time, young Mr. Belpois. This time, you are going with them."

"Who will take care of Kiwi?" asked Odd.

"I can," said Yin. "Actually my friend can. She always wanted a pet. Kiwi's small, right?"

"Yeah," chuckled Ulrich. "Small and loud."

"Ah, she puts up with my shenanigans," said Yin. "She can put up with a small dog."

Kayla turned to Eva to see a small smile on her lips. Where had they heard that before?

"That's why I wanted to meet here," said Yin. "Jeremy needs his LYOKO form."

"Einstein's going to fight with us?" asked Odd.

"I am not going out in public looking like that!" Jeremy cried.

"Things change," said Yin. "Your LYOKO forms changed, didn't they? I'm sure you're due for an upgrade."

"Go for it, Jeremy," said Yumi. "If it's going to be as rough as she says, we're going to need all the help we can get."

Jeremy was quiet for a moment. "Okay. But only if Aelita operates the supercomputer."

Yin put her hands up in surrender and stepped away from the supercomputer.

Jeremy, Odd, and Ulrich got on the elevator and went to the scanner room. The three of them got into the scanners.

"See you on the other side," said Ulrich as the doors closed.

Jeremy gulped.

A moment later, Jeremy found himself face down in the virtual LYOKO dirt.

"Nice landing, again," chuckled Ulrich.

Jeremy groaned and got up on his knees. He looked at his hands. They were covered with aqua gloves. His forearms were covered with steel armor. Jeremy got to his feet and continued to inspect his new wardrobe. He looked like a space warrior from the year 3000. His jumpsuit was gray and aqua blue with green accents on the collar and on the dark gray straps that crisscrossed his chest. On his back was a dark gray pack and he wore a dark gray helmet with an aqua stripe and his glasses were replaced with the dark visor of his helmet. Strapped to his hip was a gun holster with an aqua colored blaster.

"Nice getup, Einstein," said Odd.

"Well?" came Aelita's voice.

"He looks great," said Odd.

"I'm bringing you in," said Aelita, beginning to type in the materialization code.

"Don't you want to get your LYOKO legs first, Jeremy?" Yin asked.

Eva grabbed Yin's shoulder and turned her around. "I don't know what you are up to, but if anything happens to them, you will answer to me."

Yin smirked. "And just what are you going to do? You are a child. I doubt you can do anything to hurt me."

Eva growled and lunged at Yin. Yin allowed Eva to knock her to the floor and put her hands around her throat. Eva was squeezing, but it wasn't hurting Yin the slightest. All of a sudden, Yin fell through the floor and reappeared on the other side of the room.

"No tricks, I assure you," said Yin. "I only want to save the world from XANA and whoever else is behind this."

"What do you think?" asked Ulrich.

"I'm not sure," said Jeremy with a shake of his head.

"Well, since we're here," Odd said, taking aim at Jeremy.

"Ow!" cried Jeremy, grabbing his shoulder. "Odd, what was that for?"

"We're on LYOKO, aren't we?" Odd asked. "I don't see any monsters that you could practice on, so you'll have to settle for us."

"Why, you!" Jeremy pulled his blaster and fired. The shot missed Odd by a mile. Odd and Ulrich laughed. "Shut up!"

"You're going to need to work on that," said Ulrich.