- YOU'RE TELLING ME THAT XANA HAS COME BACK FROM THE DEAD?! – exclaimed Odd while almost chocking on a croissant.

- We did everything we could to stop it, but Thyron was always watching -said a sad and deceived Aelita.

Aelita and Jeremy had passed a week on Thyron's lab at Geneve. The moment the Replika was finished, he sent them on a train to Boulogne-Billancourt. At least, he had allowed Aelita to see and speak to her mother an hour a day. Unfortunately, she couldn't obtain more information about her past as her mother had too lost her memories.

- So what are we going to do now? -said Yumi while getting up from the chair she was sitting on- Are we going to just stand here and watch Thyron get over the world and have Aelita's mother trapped?

- No -firmly assessed Jeremy-. I have a plan. Although I couldn't install a self-destroy command, we can still destroy the Replika in the old ways.

- You mean, like, getting into Lyoko and inside the Digital sea?

- Yes. It's the only way we can do it without getting caught. We'll do it tonight. Anthea cannot wait. The world cannot way.

The five warriors went to the factory that same night. They decided not to invite William, he didn't seem prepared to face XANA yet. Rapidly, they entered Lyoko and got into the Skydbladnir and started looking for the Replika. The digital sea was quiet and had its characteristic dark blue tone. Although peaceful, it was still strange to not having to fight.

- Jeremy -called out Aelita-, are we close yet?

- Emm, let me see. You should be seeing it at 3 o'clock.

Aelita approached the Replika's entrance so that Jeremy could hack the code.

- Alright guys, you need to be fast. XANA is at its original state, but we don't know what modifications Thyrone could have done; he didn't let us work on it. Let's just be precautious.

- And remember the plan -ordered Aelita-. Me and Ulrich will go into the real world to save my mother and destroy the supercomputer. Yumi and Odd will stay here and watch out for XANA's monsters. Understood?

- Yes! -affirmed Yumi

- Let's do this -assessed Ulrich

- XANA -exclaimed Odd- prepare to die, again.

They entered the Replika, it was just as the forest sector. Jeremy and Aelita chose it because it was the only one that Thyron knew. Jeremy indicated them where the tower was and so they anchored the Skid and divided.

Aelita and Ulrich arrived at the lab, but then an alarm went off. They had been caught.

- Come on Aelita, where's your mother's room?

They both ran through the complex until they arrived to Thryon's bedroom. As it was closed, Ulrich kicked it and opened it. Scared, Anthea jumped, took a knife that she hid underneath her pillow and pointed it at Ulrich. Then, Aelita came behind the yellow ninja.

- Aelita! -said Anthea while running to hug her.

- Mom -said Aelita while breaking the hug- we need to get you out of here. Ulrich, use your superspeed and take her to the train station.

- But now? Aelita what are you planning to do?

- We're destroying the lab.

Ulrich grabbed Anthea and ran outside the lab. As soon as they parted, Aelita went to destroy the supercomputer.

From the computer room, Thyron watched as the teens ran through the lab and cursed himself for having fired his guards. He then opened a drawer and looked indecisively at the gun inside it.

In that moment, something behind him made him turn around. He saw a black fog approaching him.

- NO. What are you trying to do? Don't you da-

He couldn't finish the sentence as XANA got inside him and took control over his body. XANA, now in the scientist's body, got into the supercomputer and started to press the keyboard at extreme velocity.

In the replica, Yumi and Odd managed to overcome the monsters that came near the Skid. Nevertheless, a monster they had never seen before appeared: with just two legs, it had a small, pointed head and a huge pointy tail too (Scorpion from the Ds).

As soon as it appeared, it struck Yumi across the field and into a tree.

- Jeremy! Tell the others to hurry. We have a new friend in here -admitted Odd.

- Meanwhile, Aelita entered the lab, but something kept her in her place. The xanified Thyron had shot her.

- Jeremy. Xana's taken control over him.

- Aelita! What's happened?

As he said this, she was being devirtualized into the Skid.

- Ulrich! You need to come back! Aelita's been devirtualized. You need to destroy the supercomputer now. Yumi and Odd won't resist much longer. In fact… Yumi's just been defeated.

- Alright, Einstein, I'm coming.

Ulrich put Anthea down, just some meters before the train station.

- Ma'am, please go to Paris, that's where we leave. I need to come back now -said the ninja before running away.

In the Replika, Odd barely managed to defend the Skid, as he was still fighting the Scorpion and a bunch of other monsters.

- Jeremy, how many points do I have left?

- Just 20 Odd. You need to hold on a little more; Ulrich's almost at the lab.

- I'm doing the best I can Jeremy, but I don't have any experience with this monster and let me tell you: it's quite powerful.

- Just try to distract them from attacking the Skid, the shields are being broken.

Ulrich arrived to the lab again and started to look for the supercomputer room when Thyron appeared out of it and electrocuted the teen. XANA kept electrocuting him and Ulrich felt unable to break free.

- Ulrich! The Skid's shields are down, it's now or never! Odd, get into the Skid commando.

After hearing that, Ulrich used Triplicate to make two more copies of himself and break loose of the electrocution. XANA used its rays against the two clones, leaving the original an escape to the supercomputer room.

But when XANA saw his intentions, it didn't doubt and grabbed the gun Thyron was carrying and shot Ulrich, virtualizing him into the Skid.

- Jeremy, did Ulrich manage to destroy it?

- I'm afraid not Odd, but now think of getting away, you have no more shields. Don't worry, they won't follow you, XANA's trapped in the Replika. For now.

Odd got out of the Replika and headed to Lyoko just as he heard something from behind: the Replika's doors were opening again, which only could mean that XANA had found the way to free itself into the net. Jeremy told Odd to run back to Lyoko, they couldn't risk losing the 5 of them.

Once they were all back on Earth, they stand on the lab room as quiet as the wind, not willing to even look at each other's faces.

- So -tried Odd to break the ice-, XANA's free, again, and has control of Thyron's body, technology and resources. What are we gonna do next?

- First, we'll pick up my mother from the station. Then we'll just have to fight XANA the old way until we find a program that can trace it and destroy it.

- Does the one we used not work? -asked Yumi

- It doesn't, I tried as you were in the Replika. Although, it is XANA in its main core, Thyron modified it and made it more destructive and less conservative in terms of speaking. It is like XANA's son.

More like XANA-2, or XANAdú -joked Odd.

- The name we give it doesn't care, what it's important is to destroy it. For now, let's just go for Anthea.

After that, Xanadú took control of all the factories that Thyron had and started making his own army of robots. In just one week, it had threatened some of the most important nations and even had hacked into the systems of some military missiles to make them explode.

PRESENT DAY

- It was slowly taking control of the world. In the end, XANA threw a missile into the factory, with us inside, and made it collapse. We thought the only way to save ourselves and the world was to come back to the past -if we had lost the supercomputer XANA would have won immediately. The idea was to travel where XANA was still captive on Lyoko or even better: not created. Unfortunately, travelling precisely 10 years and 104 days is not that easy, so I ended up just moments before entering Lyoko again and couldn't avoid its creation, but at least I could put it to sleep for some years.