I don't own Harry Potter or Code Lyoko. There is a link to a picture of the Overjet on my profile.

Exploration

Aelita ran down the path to the tower.

"Hurry Aelita. Yumi has only got ten life points left. Harry's on full though. He's luck he can sense he attacks and dodge before they hit," said Jeremy.

"Someone jealous?" asked Harry as he flew by Aelita.

"Get ready you three. I'm starting up the devirtualisation process," said Jeremy. Harry hopped off the Overjet and dismissed it.

"Activated Towers, Lyoko battles, danger…aren't you guys starting to get sick of all this?" asked Ulrich.

"No!" exclaimed Odd and Jeremy.

"Sometimes I really wish we were done with Xana," continued Ulrich as the door opened.

"Uh, you missed an episode, Ulrich. Remember?" asked Odd. "Aelita's carrying a miserable virus that links her to Xana; bye-bye Xana means bye-bye Aelita!"

"And I don't know how to create an antivirus," said Jeremy. "I mean, not yet. but me, Harry and Aelita can work it out."

"Hey, I have an idea!" said Aelita. "Why don't we explore the mysterious new Sector we discovered?"

"Sector Five?!" asked Jeremy in disbelief. "We don't know what's in it!"

"Sure we do!" said Odd. "There are monsters, ultra-dangerous traps, and the Scyphozoas, as you call them, that wants to steal Aelita's memory and potentially make Harry a host for Xana!"

"Don't remind me Odd," said Harry as he shuddered.

"You're right Odd," said Aelita. "But what if there's information there about Xana? We have to go back."

"Good idea," said Ulrich. "All four of us can go."

"You mean all five of us," said Aelita. "I want to be a part of this expedition."

"With the Scyphozoa around, it's too dangerous for both you and Harry," said Jeremy. Harry huffed.

"What if there's a Tower to deactivate?" asked Aelita. "Think about it! We have to be there!"

"Come on, Einstein! With bodyguards like us, she has nothing to worry about! And I promise to be careful!" said Odd. "Harry isn't at much of a risk. He can outrun any monster."

"That's assuming I don't get trapped," said Harry.

"Alright. We'll go tomorrow night," said Jeremy as they walked out of the factory.

"Oh my. It's so late," said Yumi. "My parents must be going bananas. Bye! See you tomorrow!"

Yumi ran across the bridge.

"And as for us, we missed dinner again. And when I think it was spaghetti and meatballs!" said Odd somberly.

Yumi

Yumi slipped through the gate and walked past the window. She entered the dark home. She shut the door as the light turned on.

"Yumi, we need to talk," said her dad as they stood on the stairs. They walked into the kitchen and Yumi found some food.

"You come home late every night and tonight is the last straw. It's past ten o'clock and you didn't call us."

"And you haven't eaten anything either. What's going on?" asked her mum. "If you have a problem, you know you can tell us."

"Everything's fine. I was studying maths at a friend's house. I told you already."

"At a friend's horde? I called all your friends and they all said that you weren't there. You're lying."

"That's not like you Yumi," said her mum. "What's the matter with you? I worry about you. Tell me what's bothering you."

"I promise you that everything is fine. You daw my last report card. It was great. So why worry?" asked Yumi as she went to bed. Her mum checked up on her and found her asleep.

"I'm concerned."

"We're going to have to get a lot stricter!"

The next day

"It's nice of you to come with me but I'm big enough to go to school on my own," said Yumi as her parents walked beside her.

"If you were, you would stop lying to us and tell us why you come home so late."

"Are you going to watch me 24 hours a day?" asked Yumi. "Is that it? Am I in prison or something?"

"We're trying to understand you and protect you dear."

"Oh wow," said Sissi. "The entire Ishiyama family."

"I guess you'd be picking me up as well?"

"I'll be waiting for you at five O'clock. I'd advise you not to be late."

"Oh, isn't that adorable?" asked Sissi. The group laughed as Yumi entered the school.

"They're not going to ease up on me. Oh, what a mess! The worst thing is, I hate lying to them!" said Yumi to the group.

"Then just explain to them that we're fighting in a virtual universe against a demonic artificial intelligence. That ought to reassure them!" said Odd.

"Dork!"

The drinks machine produced the requested drink.

You've got to win back their trust," said Jeremy. "I think you should stay away from Lyoko for a little while."

"What about exploring sector five?" asked Yumi.

"We could always delay it," suggested Harry.

"Jeremy can give you a play by play update," said Ulrich. The bell went.

"Come on guys, I know you're all dying to go to Ms Hertz' class, off we go!" said Odd.

"Did you study for the marine biology test?" asked Jeremy.

"Of course I did, listen! Fish are remarkably well-adapted to water. What's more they can swim!" said Odd proudly.

"You are so lame!" said Jeremy.

"A lot of animals can swim," said Harry.

That night

"Alright. Off to the forest sector. Transfer Odd. Transfer Ulrich. Transfer Aelita. Scanner Odd. Scanner Ulrich. Scanner Aelita. Virtualisation. Harry, it's your turn. Transfer Harry. Scanner Harry. Virtualisation. Everything ok?"

"We're good. The monsters must be sleeping! They need all the sleep they can get to recover from all the grief we've been giving them!" said Odd.

"Or Xana hasn't sent any yet," said Harry as he looked around.

"You have to get to the other end of the sector to get the transporter," said Jeremy as Harry called up the Overjet. He and Aelita jumped in.

"You never did tell us how to do that," said Ulrich.

"It's easy, just think of a holographic screen appearing in front of you. Then select the vehicle you want."

Odd and Ulrich did just that and the Overbike and Overboard appeared.

"YAAAAHOOOO!" yelled Odd as he headed to the end of the sector. Harry flew in and out of the trees.

"Odd! You promised to be careful!" said Ulrich.

"No problem!"

"Ugh…"

"Go straight ahead and get there before the monsters do," said Jeremy.

"We're here Jeremy," said Aelita as she and Harry jumped out onto the wing then onto the floor and Harry devirtualised the Overjet.

"Ok. I'm entering the code."

"There's the transporter," said Odd as it approached. It picked them up and headed to sector five.

"Hey Jeremy. Everything ok?" asked Yumi as she sat on the side of the bath.

"Yumi. They're in the transporter," said Jeremy. "All is well."

"Tell them I'm thinking about them," said Yumi as she ended the call.

"Happy campers?" asked Jeremy as they arrived.

"Yep! I'm beginning to get used to these little trips!" said Ulrich.

"Ohh…not me! I shouldn't have had that fifth dessert at lunch!" moaned Odd.

"I hope we don't meet the Scyphozoas," said Harry.

"Jeremy, the wall's about to open," said Aelita.

"Right, and that means the countdown's about to start," said Jeremy as the holomap showed the sector. "You have to find a way to deactivate it. That must be the answer. Watch it, guys!"

"Everything will be fine," said Ulrich as they ran towards the exit. "Odd promised to be careful!"

"It's started," said Jeremy. "You know what will happen if Aelita loses all her life points."

"Don't worry. We have no intention of losing her," said Ulrich.

"We'll be careful," said Harry as they ran down the hallway.

"Last time, there was a big room at the end," said Aelita.

"I've got a feeling the architecture of the core zone changes each time you go there!" exclaimed Jeremy as they ran into a different room.

"That's a great help for finding our way around!" said Odd.

"If we knew everything we wouldn't be exploring!" pointed out Ulrich. "Come on, let's go!"

They chose a passage at random.

"Look out. You have two creepers on your tail," said Jeremy. Odd shot at them but missed. "You've only got three minutes left."

They chose a direction at random again. They went down several passages and ended up in a similar place.

"Haven't we already been through here?" asked Ulrich as he had a sense of Déjà vu.

"How should I know?" asked Odd. "Everything looks the same in this place!"

"We have," said Harry. "There's too much blue though."

"This way," said Aelita as she looked down a passage. A creeper shot at her.

"Wow, 40 life points in one go! Those Creepers sure are powerful!" said Jeremy as Aelita got blasted back. Odd shot at it while Harry and Ulrich helped her up. Harry threw a shuriken. It passed through Odd and destroyed the Creeper.

"They're powerful, and really ugly too!" said Odd. "Harry, did you really have to shot through me?"

"Yep."

"Jeremy, do you have any ideas?" asked Ulrich.

"None. I do have news for you though. You're in a labyrinth. Take a left and leave a marker at each fork. If there's a marker, make a right."

"This is incredible! We'll never get out of this thing!" said Odd.

"Yes we will, said Harry as he ran off at top speed before coming back. "I just made a mental map."

"Why didn't you do that in the first place?" Asked Ulrich. "And wasn't that dangerous?"

Harry made a face. "This way. I think I found the switch."

"You'd better. There's only two minutes until the end of the countdown," said Jeremy as they found the end of the labyrinth.

"We made it," said Aelita.

"Nothing like having a little luck on your side. Hey Einstein, why complicate things, huh?" asked Odd. It lead to a dead end.

"Oh…oh, great! Now what do we do?" asked Ulrich.

"Jeremy, can you see anything from your end?" asked Odd.

"So you need me again, huh?" asked Jeremy. "Kinda ironic, don't you think?"

"We went too far," said Harry. "This way."

They ran back into the labyrinth and Harry pointed at the switch. Odd climbed up to it and was about it hit it when he got devitalized. Harry stabbed the Creeper but not before Ulrich got devirtualised as well.

"Aelita, the countdown is over. The room's bound to change now."

They got put in a smaller room.

"Are you ok?"

"No creepers," said Aelita.

"Well, that's a start," said Jeremy. "I'm going to rematerialse Ulrich and Odd and get you two out of there. Come on. Aelita! Odd and Ulrich didn't come back!"

"What?! But…that's impossible! Are they lost?" asked Aelita.

"For the moment they are…" said Jeremy.

"So there's no rematerialisation from sector five?" asked Aelita.

Harry clutched his head. It was filling with images.

"There is a way. We need to get some codes."

"How did you know that?" asked Jeremy.

"I don't know. Do you think you can find them Jeremy?"

"It's probably as easy as finding your antivirus! But don't worry, I'm going to do the impossible!" said Jeremy as he browsed through the files.

Yumi

"Hiroki, could you make some more noise please?" asked an annoyed Yumi because her brother was playing on his GameBoy.

"Sorry, Yumi, the volume's as high as it goes!" said Hiroki.

"Hiroki!" said their dad.

"Go into the other room.

"I pass," said Yumi's dad as Yumi received a text.

"Me too, I pass."

"Then the game is over! Hahaha! I have five points more than you!" gloated Mr Ishiyama.

"On the goban yes. Don't forget that I played the whites. With komi I win by half a point! Well, it's bedtime. Goodnight." Ashe picked up her phone and walked off.

Once outside the room, she called Jeremy.

"What's up Jeremy? How's it going?"

"Badly! Head for the factory!"

Sector five

The two froze as they heard the Scyphozoas.

"Jeremy, Can you hear that?" asked Aelita.

"It's the Scyphozoas! They're coming for you!" said Jeremy. "Stay calm. Yumi's coming."

"There has to be a way out of here," said Harry. "By the way, I have now got a new monster I hate. I don't think Yumi's going to get here in time."

Yumi's house

"Yumi? Can I come in?" asked her mum. "I want to talk to you."

She walked over to the bed and removed the cover. Yumi wasn't there.

"Yumi!"

She looked at the open window.

Factory

"Jeremy, I'm in the factory," said Yumi.

"You have to get Aelita and Harry in Sector Five, the Scyphozoas are there!"

"What about Odd and Ulrich?" asked Yumi.

"You want the best case scenario?"

"I'd rather!" said Yumi.

"I've got about a one in a million chance of finding the right code to bring them back."

Kadic

Jim yawned as he and Principal Delmas stood outside the gate.

"I'm so sorry to bother you at such a late time," said Mr Ishiyama.

"But we're very worried," Sid Yumi's mum.

"Yes, yes, I understand," said Principal Delmas. "But it's quite possible that Yumi is somewhere on the campus."

"Why, sure," said Jim. "She's probably hanging with her little gang of friends. Come on."

They walked into the school.

Lyoko

Yumi piloted the Overwing to the edge of the mountain sector.

"You're on the edge of the territory Yumi," said Jeremy. "Better be careful as Xana will do anything to stop you getting to them."

Kankrelats shot the Overwing down.

"Jeremy, enter the code," said Yumi as she ran. The transporter arrived and took Yumi away.

Dorms

"Huh, no-one's here!" said Jim as he looked in Jeremy's and Harry's room.

"No-one in Stern's room either…" said Delmas.

"Looking for someone?" asked Sissi.

"Uh, Sissi! Do you know where your friends Stern, Stern, Belpois and Della Robbia might be?" asked Delmas.

"Probably up to no good, as usual. But I don't know where," said Sissi. "Their little mascot could find them."

"Mascot? What Mascot?" Asked Delmas as Sissi went over to Odd's wardrobe and revealed Kiwi.

"A flea-bitten mangy mutt! Oh! Well, excuse me, Mr Delmas!" said Jim.

"Where's your master?" Asked Sissi. "Go get him."

Kiwi ran out of the room and down the corridor. The adults followed him.

Sector five

"Hold in there you two," said Jeremy. "Yumi's on her way."

"I hope so," Said Aelita as a passage opened.

"Yumi, can you hear me?" Asked Jeremy.

"Yes, I'm in the arena," said Yumi. "The Transporter got to me just in time. Horrible Kankrelat…"

"You have to get to the mechanism before the countdown finishes," said Jeremy.

"Ok."

"Now that I know how the core works, my plan will work," said Jeremy.

Park

Kiwi lead them to the manhole.

"What's the matter with that hound?" asked Jim as he walked over and looked at the dog. "Oh, I don't believe it! This reminds me of when I used to work in the sewers!"

"You uh, used to work in the sewers, Jim?" asked Delmas.

"I err, rather not talk about it."

Sector five

The Scyphozoas approached and Harry attacked them to buy time.

"Two minutes left Yumi!"

Yumi stopped when she saw the lasers. She attempted to flip over them but she got hit.

"Down to ten life points Yumi. This isn't the time to mess up."

Yumi managed to get past a few more lasers.

Sewers

"That's weird," said Jim as he picked up a skateboard. Kiwi chewed his slipper.

"Jim, we're wasting time!" said Delmas.

"Will you let go of that slipper you flea-bit- …come on! Let go of it!" said Jim as they let go and the slipper flew into the water.

Sector five

Aelita and Harry were forced into a corner as the two Scyphozoas approached.

"Yumi, this is no time to drag your feet," said Jeremy as he looked at Harry's ID card. "That's weird… a new power! Harry! Believe that the walls aren't there!"

"What?!" asked Harry as he threw another shuriken. "Have you gone insane?!"

"Just do it! Like you did when you became a ninja on earth."

"If you say so."

Harry focused and the walls disappeared. "Where did that power come from?"

"Yumi, the mechanism's on your right. Ten seconds."

She ran and pressed it. A path opened up.

"It works Jeremy."

"The whole zone is being reconfigured."

Harry and Aelita backed away from the Scyphozoas. One of them moved forward and grabbed Aelita, placing its tentacles on her head. A wall can up and severed the connection.

"Lucky break," said Harry as he helped Aelita up.

"Take the access behind you," said Jeremy as they turned and walked over.

Yumi ran out and saw a moving platform.

"Wow! It's some kind of elevator!" she said.

"You know what we do with elevators, right?" asked Jeremy.

"We ride 'em!" Yumi jumped on the upcoming platform. It changed direction and passed Aelita.

"Yumi!"

"Grab Aelita as you go by," said Jeremy. Yumi held her hand out and grabbed Aelita. Harry jumped on by himself.

"Where are you taking us?" asked Aelita.

"I have no idea."

"Harry, since when could you change the structure of Lyoko?" asked Aelita, turning to him.

"I don't know," said Harry thoughtfully. "Maybe my magic has crossed over, like my Lyoko powers did on earth."

The platform stopped and they ran down the path.

"There's an interface," said Aelita, walking up to it. "I can get in." she started to move the files around. "Incredible!"

"What is it?" asked Jeremy.

"The interface give access to Xana's own data! Sector Five…is where Xana lives!"

"XANA's not a very good housekeeper…there are some weird things hanging around this place!" said Yumi. Harry looked at the walls where it looked like it was being pushed out. He pulled out two shuriken.

"I've got access to all kinds of data," said Aelita. "It's crazy."

"Look for the materialisation codes," said Jeremy. "If you find it, we can rescue Odd and Ulrich."

"What is it Harry?!" Asked Yumi.

"We're not alone."

Three manta like monsters came out of the wall. Harry threw his shuriken and destroyed two of them.
"Hurry up Aelita!"

"Jeremy, I'm going to need the Overwing," said Yumi.

"Uh oh. When Aelita's on the interface, I can't' use the computer up here."

Harry tapped on his screen and the Overjet appeared. Yumi looked at him.

"Just think of a holographic screen appearing in front of you. Then select the vehicle you want."

Yumi did that and the Overwing appeared.

"I think I found it," said Aelita. "I'm transferring it to you."

"Ok, I'm taking over again now," said Jeremy as Harry jumped on the Overjet and Aelita and Yumi jumped on the Overwing."

Factory

"What would a nice girl like Yumi be doing here?" Asked Delmas as they walked into the factory.

"Where are we anyway?" asked Jim.

Sector five

The remaining Monster approached them. Harry flew around it and hit it on the top, destroying it.

"How do we get out of here?" asked Yumi.

"The tunnels," said Harry. "There are four of them. Four sectors. Each one must lead to one of the other sectors. Jeremy, unblock them."

"Let's see… what if they correspond to those that open onto the arena?" Jeremy typed away. "Yippee, it works!"

One of the tunnels opened and they flew through it.

"Nice one Jeremy."

They came up through a way tower and headed to a neutral tower. The landed and their vehicles disappeared.

"Materialisation Harry! Materialisation Yumi! Code Earth!"

Scanners

"It's ok Jeremy, we're here…but what about the others?" asked Aelita.

"I'm entering the new code. Materialisation Odd! Materialisation Ulrich! Now all we can do is hope."

The three watched as two of the scanners closed. Jeremy came in and he and Aelita held hands. The scanners opened. Odd crawled out one and Ulrich started coughing.

"We did it!"

"Odd! How do you feel?" asked Jeremy as he walked over to him. "Say something!"

"Mm…something…" said a panting Odd.

They went up in the elevator. When it opened, Kiwi came in.

"Kiwi?"

"Yumi, what are you doing here?" asked her dad.

"Ah, nothing," said Harry as he winked at Jeremy. "Just saving the world and going to a virtual universe and all that stuff. There's an impressive computer here too."

"Show it to us," ordered Delmas as they walked in. Jeremy nodded to Harry and they went down again to the lab.

"What the…Belpois! But what…what is this place?" asked Jim.

"Nothing rings a bell, Jim?" asked Jeremy as he walked over to the computer. "Funny, 'cus you've been here before!"

"What are you talkin' about?" asked Jim. "I don't remember this!"

"Well yes and no!" said Jeremy as he sat down.

"Belpois, get away from the computer," ordered Delmas.

"You've been here too sir," said Harry. "You just don't remember it."

"Yumi, why didn't you tell us?" asked her mum.

"Ok Jeremy, start it up," said a grinning Harry.

"Start what up?" asked Delmas. "What are you talking about?"

"Return to the past now!"

The white light erased the memories of the adults.

Earlier

"So then, you still refuse to give us an explanation?" asked Mr Ishiyama as they walked down the street for a second time.

"Alright, I'll tell you…I-I'm in love…" said Yumi.

"Ah Yumi. I knew there was a reason."

"Would you tell us the boy's name?"

"No. sorry. See you tonight."

She walked into school.

"Well, that sure seemed to satisfy your parents! What did you tell them?" asked Ulrich.

"The truth!"