Okay, so I've wanted to write a Code Lyoko story for a while, but I could never think of an idea. Then this just kind of came to me, and I couldn't shake it. I'm like that. I just had to write it down and I decided to post it so I could have your opinion. Please read and review!

I don't own Code Lyoko.

Chapter 1

"Skid ready to dive, T-minus 10 seconds. All set Jeremy?" Aelita asked as she made the final preparations for today's mission.

Today, they were navigating the Skid to look for other Replikas that Xana may have created. Also, Jeremy had a feeling there was more to the digital sea then he originally thought. There hadn't been many activated towers recently so Yumi and Ulrich were suspicious of what Xana might be planning, but Jeremy knew they had to take a risk. It was the best time to follow out their plan.

"Yeah, Jeremy, can we finally test our new threads?" Odd called out.

"For your information, they are highly specialized suits that, if effective, will keep you from being virtualized into the digital sea. You can't just jump out of the Skid and hope for the best," Jeremy replied.

"Jeremy's right, Odd, you never know what might happen," Aelita added.

"Yeah, whatever, I'm not afraid to try," Odd said.

"Anyway, prepare to dive into the digital sea," Jeremy instructed while making final adjustments on the screen.

The Skid hesitated a moment in midair before plunging into the dark depths of Lyoko.

"Aelita, here's the coordinates of something I want you to check out. The supercomputer can only get a hazy image of it, and it's something I've never seen before," Jeremy said while pressing various keys on the board.

"No problem. Rotation," Aelita replied. "Powering Turboprop and auxiliary generators."

The Skid sped off into the darkness. The lights only reached about a fifty feet radius around the sub. So far, no one could see anything.

Yumi stared out of her Navskid, not really looking at her surroundings, but at her mind's eye. I wonder where William is. I wish I could see where he goes after we defeat him. She started to remember what had happened just last week. William had been just seconds away from throwing Aelita into the digital sea. Yumi was the only one left; she was the only one who could save her. Throwing her fans, she realized that they wouldn't make it in time. Using her mind to direct them, the fans suddenly disappeared. Milliseconds later, they reappeared nearly two feet from William's head. The fans hit their mark and William dissolved, Aelita unharmed. Has her power of telekinesis developed into teleportation? No one knew of it except her, and she didn't want to tell anyone just yet.

I wonder if I could teleport myself. Maybe I could find William. But that's silly, how can I teleport myself if I don't know where I'm going? Yumi thought. She decided to give it a try. Focusing all of her energy, she pictured herself next to William. Send me to William. Send me to William. Send me to William.

Yumi's last thoughts were of astonishment, seeing her own body vanish in front of her very eyes. That was all she remembered before she blacked out.

Yumi disappeared from the Skid, unknown to her friends.

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"Uh oh, it looks like we have a couple fish faces on our tails," Ulrich remarked a while later.

Aelita brought up the radar. "You're right. Ready to fight them?"

"All set, Princess," Odd replied.

"Yumi?"

Aelita was answered with silence. "Yumi? Are you there?"

"Come on, Yumi, don't scare us like this," Ulrich added.

Still there was no answer.

"Jeremy, what's going on?" Aelita asked, panic starting to come into her voice.

"Hold on, let me open the Skid window," Jeremy replied. A window opened to show the entire layout of the Skid. In each of their designated spots were the outlines of Aelita, Ulrich, and Odd… but no Yumi. "I… I don't believe it."

"What's wrong, Einstein?" Odd asked.

Jeremy punched keys into the board, making sure nothing was wrong with the supercomputer. He gulped. "Well, from what the Skid tells me, Yumi isn't on board with you."

"What?"

"That's impossible!"

"Are you sure the supercomputer isn't acting up again?"

"It's possible," Jeremy replied to the last question. "But right now I want you to return to Lyoko. I don't know what happened to Yumi, but it's likely that the same thing could happen to you. I don't want to take any chances."

Ulrich pounded on the side of his chair. "Yumi, where are you? Why does this always happen to you?" he whispered.

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Jeremy hit a few more keys before sighing heavily and leaning back in his chair.

"Any luck?" Aelita asked.

"From what I can figure out, there were no problems at all with the supercomputer for the duration of this mission. Yumi boarded the Skid with all of you, but then she didn't respond and the Skid showed no signs of her presence," Jeremy replied. He ran a hand through his hair. "It doesn't make sense. How can she just disappear like that? There's hardly any trace of her." He took the glasses off his face and pinched the bridge of his nose.

"Can you find her?" Ulrich asked.

Jeremy folded his hands in front of him, a sign that he was really thinking. "It's definitely possible, but I'm not sure what percent. I could try to find her digital trace, like we did with William. That's all I can think of at the moment." He turned back toward the computer. "I'll start looking for her trace now. The sooner we find her, the better. You can head back to school. I'll call you if anything comes up."

"I'll stay here and help," Aelita said.

Ulrich and Odd turned toward the elevator. Walking out into the sunlight, Odd turned to Ulrich. "You never got to tell her, did you? How much you like her."

Ulrich slowly shook his head. "No, I didn't."

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Yumi felt herself slowly drift back into consciousness. What had happened to her? She felt like an eighteen-wheeler truck hit her. Wait, this doesn't feel right. It felt like she was swimming. She quickly opened her eyes to find herself surrounded by… water? I'm in the digital sea. Yumi made a mental note to tell Jeremy that these suits really did work. Oh gosh, Jeremy! They probably all think something terrible has happened to me. Him and Aelita and Odd and… Ulrich.

So, what do I do now? Yumi got her answer when a shark started coming towards her. This was not good. She turned and started swimming away as fast as she could, but the shark was still gaining on her. If I wasn't dead before, I definitely am now.

Suddenly, Yumi felt herself being pulled by an underwater current. It was so powerful that she couldn't escape it, and after a while she just let it pull her along. She thought that maybe it would help her get back to Lyoko. Then she realized something: I can breathe underwater.

What seemed like a few hours later, Yumi noticed that it seemed unnaturally dark behind her. The water had a natural glow to it, but behind her, there was none at all. Yumi turned around and her eyes widened. What stood before her seemed like a giant black hole, like the ones in space. But how could there be one underwater? Well, Yumi was sure to find out, because the current was leading right into it.

Plunging into the black hole, Yumi felt as if she had left the water and was now free-falling through air. Her stomach rose to her throat and she screamed for dear life. Her arms flailed around, desperately reaching for anything to hold on to. She reentered the water with a splash, then gasped as she saw what was before her.

The digital sea had turned from a bluish tint to a red one. Submerged before her was another Replika, but this wasn't like the others. Yumi had a feeling that this was where Xana's main headquarters was. And where Xana was, William would probably be there too.

Yumi swam toward it, eager to see what she would find.

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Ulrich lay on his back, staring at the ceiling. He couldn't even think of sleeping. He felt more along the lines of using his pillow as a punching bag. Odd had fallen asleep almost instantly and was now snoring, Kiwi harmonizing with him. Ulrich finally decided to try to fall asleep. Maybe they would be able to look for Yumi in the morning.

"We have to find you, Yumi," he murmured to himself. "We just have to."

So, what do you think? I would really appreciate it if you could give me some feedback. This is my first story for Code Lyoko, and I wanted the characters to be as close to the show as possible. It was really hard to write this chapter because I had to think of what to say for Jeremy and I wanted it to be believable.

Questions? Comments? Concerns? Random stuff you just want to say to me?

Press the GO button!

Tamiro :D