Woot, thanks for all the reviews people! Here's Chapter 4 - I had great fun writing this so I hope you have great fun reading it!

Disclaimer: Does it REALLY look like I own Code Lyoko? Of course I don't.

Claimer: I do own this story, and Mia. No shtealing. (/stupid accent)

Chapter 4

"Hey! Aelita, Ulrich, over here!" Odd greeted them. "The megatank went that way. Think we should follow it?"

"Maybe later Odd, but right now we have a tower to deactivate." Ulrich stated. "Yumi, do you know where it is?"

"Yea, it's on your left a little way away."

"Okay, we'll get there as fast as possible."

Strangely enough, they ran into a total of zero monsters on their way – and when they got to the tower, it didn't look like an activated one at all: it was glowing blue.

"Hey, are you sure this is the right tower?"

"Yea, it's the one the scan picked up… wait; if it's deactivated then XANA must have intentionally deactivated it."

Aelita interrupted the conversation. "Oh no. That means XANA must have finished with Jeremie already… we must be too late!"

"Maybe we should go follow those monsters." Odd suggested, again.

"I guess we might as well."

With Yumi's help to locate the monsters, they found them. By now there was a rather interesting formation there: two megatanks, moving around in a circular motion, with five hornets above them, and two blocks in front, probably the survivors from earlier. A vague orange glow was visible from the centre.

"Hey you chickens take this!" Odd said to the blocks, and hit them both with his arrows. The hornets suddenly took note of the situation.

"REAL smooth Odd," Ulrich complained, "you just gave us away. Can we think of a plan next time?"

Their answer was given by the stream of Hornets attacking them. Odd was immediately devirtualized, but this wasn't a great loss as he was out of arrows anyway. Ulrich was badly hurt, with 60 life points left, but Aelita was left completely untouched.

"Right then, I say we get them, Aelita hide somewhere…" Ulrich said. "TRIPLICATE!"

Each of his copies ran up to one hornet, jumped, and destroyed their respective enemy in one hit. "Perfect, three down, two to go." The other two hornets kept themselves busy trying to attack a little dome of ice that Aelita had made to hide in – but not for long. Ulrich now sent one of his copies to deal with the two hornets, while he and the other one went for the megatanks. However, he had a bit of a problem. Since the megatanks were only running round in circles and not attacking, there was no way to kill them.

(Back at the factory, Mia's POV)

Today is so confusing… I get beaten up, fall unconscious and now get taken to a factory with some giant computer and stuff? And who are all these people? There's only one thing I even know of Yumi, and that's that she's my twin sister. I only found that out a week ago… Out of all the girls in the world I must have had the strangest childhood… I was supposedly kidnapped just weeks after my birth. However, just days later my captor died by an unknown cause. I was luckily rescued by some kid. But then, I stayed with her… for surprisingly many years. And just recently had I discovered I had a twin sister, Yumi. We managed to find her, after much deliberation, and since my best friend knew a few rich and certainly generous people, I was lucky enough to get to fly all the way here. Learning French was no problem, as I'd always been interested in languages and whatnot in my childhood.

And now, I was stuck in some room with a supercomputer.

"Hey Yumi… What is all this stuff?"

She faltered, slightly. "Well… it's actually really complicated, but basically, there's this thing called XANA, and he's evil and wants to destroy us. So we go to this place called Lyoko to fight him. And we do that here."

"You're joking, right?"

"No, I'm actually serious. Want me to prove it? The others need some help as it is."

"Sure go ahead why not."

(A/N: Never mind how Yumi knows how to operate the supercomputer. Let's just imagine that Jeremie documented all his programs well. :P )

"Okay, I'm going to have to make you a card. First of all, what clothes do you want to be wearing?"

"Haha that's easy. Same as I'm wearing now of course!"

"Great," She started typing. "Okay next. What weapon do you-"

I interrupted her. "Yumi… I don't fight. I'm a pacifist, remember?"

"Well… Lyoko's a virtual place. You don't actually hurt people there."

"Still, I don't fight."

"Fine have it your way. How about I give you Aelita's powers then? You'll be able to manipulate the terrain, but every time you do you lose 50 life points."

"Go for it."

She types some more. Suddenly something else appeared on the screen; someone's face.

"Yumi, don't do that, it won't work."

"Aelita? How come?"

"Just trust me on this one it won't. XANA is using too much memory right now. You mustn't do anything with the cards until Jeremie is released, or he will be corrupted."

"Released? You mean he's captured somewhere?"

"Yes, he's here on Lyoko, in a Guardian. But there's a problem. The Guardian is surrounded by those two megatanks, and they can't be destroyed because they're not attempting to attack."

(Back on Lyoko)

"Fusion!" Ulrich yelled after killing the two remaining Hornets and freeing Aelita.

"Ulrich," Aelita started, "We have to find a way to get through those megatanks. Jeremie is being held by a Guardian in the middle."

Ulrich ran up to the megatanks, and shoved his sword into their path at an angle. It wasn't much use, though, as it simply grinded on the armour of the megatanks. He took his sword away again. "How are we ever going to get past these if they won't open up?"

"Wait, I think I may have an idea. Be on your guard Ulrich." Aelita said. She closed her eyes, concentrating for a little while. Suddenly, the megatanks opened up, ready to fire. Ulrich quickly killed one of them but was just too late for the other. He was hit, but luckily he survived by a mere ten life points, so he wasn't devirtualized from the attack. He then hurried to kill the other one, too: success.

There was still one final problem remaining. The Guardian was still there, encasing Jeremie, and Aelita was unable to release him as she had already used up her power of creativity.

"So what do we do now?" Ulrich asked.

Aelita paused. "Run round it in circles, really, really fast."

"Okay Odd, what've you done with Aelita…"

"I'm serious. The Guardian may look like an invulnerable fire bubble, but it's actually just a load of charged particles moving round at incredible speeds. You may be able to disrupt them. I don't know why I didn't think of this sooner."

"Well, I'll try it." Ulrich said, running round the Guardian.

"Hey it's doing something! Run faster!"

Eventually, the Guardian changed its shape. It was now much fatter, and a large hole was forming in the top and bottom. Aelita quickly pulled Jeremie out from the middle; after doing so, she started concentrating once again. (A/N: This is not the same as when she uses her creativity – it won't use up life points!) The three of them were devirtualized, and the Guardian exploded.

(Back at the factory)

Aelita and Ulrich carried Jeremie up to the supercomputer room, where Yumi, Mia and Odd were. Aelita quickly took the seat at the computer, and launched the Return to the Past.

Well that's it! Now get reviewing ;) More reviews means more updates!