I don't own Harry Potter or Code Lyoko.

Saint Valentine's Day

A boy placed a box outside Aelita's door. She woke up and looked at her computer as she heard a knock at the door. Aelita opened it and looked around. No one there. She noticed the box and picked it up. She opened it to reveal a necklace.

The boy went through the doors.

"Hey, what are you doing here?" asked Jim as he looked at the boy. "No one is allowed in the dormitory without my permission. How did you get in here anyway?"

The boy smiled as the eye of Xana appeared in his eyes. He held his hand out as a spiral of energy built up and he used it on Jim before jumping onto the ceiling. Jim looked at him, shocked as he crawled along the ceiling.

The next day

"Plain, but not bad!" said Yumi as she looked at the necklace.

"But I wonder who gave it to me. And why!" said Aelita.

"Why? I might have an idea! You know what day it is today?" asked Yumi as she handed it back to Aelita.

"Uh…Tuesday!"

"Yes, but not just any Tuesday! It's Saint Valentine's Day, the day all lovers celebrate!" exclaimed Yumi.

"Lovers?" asked Aelita.

"Yes, and I can guess exactly which boy might want to give you a present, can't you?" asked Yumi. "No, it's not Harry."

Outside

"Hey, there's Aelita!" said Odd as the four boys walked along.

"Thanks, Jeremie!" said Aelita

"You know the first time I see someone in the morning I tend to say "good morning!" But then again, maybe I'm a little old-fashioned!" said Ulrich.

"Thank you," repeated Aelita as she touched the necklace.

"The um…necklace?" asked Jeremy.

"Your Valentine's Day present. It's lovely!"

"Uh…yeah…um…well, you're welcome! It's only natural, hehe!" said Jeremy.

"Well, see you in class."

"See you Aelita," said Jeremy as she walked off.

"You didn't give it to her, did you?" asked Ulrich.

"Was it that obvious?" asked Jeremy.

"Yeah! But lucky for you, love has made Aelita blind!"

"Come on Ulrich!"

"That wasn't a normal necklace," said Harry. "Next time I go to Lyoko, can I go speck to Uncle Waldo?"

"If we go to sector five, then yes," said Jeremy. "I'm sure you can introduce us."

Class

"Most historians believe that Valentine's Day is associated with the roman…"

"Hey Ulrich, it wasn't you who gave her that necklace, by any chance?" asked Jeremy over the teacher.

"Are you out of your mind or something?" asked Ulrich. "I didn't even know it was Valentine's Day!"

"Harry, didn't you say that there was something wrong about the necklace?"

Harry nodded. "It's the same feeling that I get from Xana, but weaker. He's watching us by the way. Oh, Ulrich. I have something for you to give to Yumi."

There was a pause in the conversation as Harry passed a necklace to Ulrich.

"Jeremie? What rhymes with uh, tulip?" asked Ulrich.

"I don't know, microchip? Paperclip? Hypocrite?" suggested Jeremy.

"Ok, never mind…" said Ulrich.

"What are you writing?" asked Jeremy.

"Nothing!"

"A poem?" asked Jeremy again.

"No!"

"Is it for Yumi?" asked Harry.

"No! It's…biology homework!"

"Biology homework that rhymes, huh? That's interesting!" said Jeremy. "Odd, the necklace, it wasn't you, was it?"

"Do I have to remind you that Aelita is supposed to be my cousin?" asked Odd.

"Yes, except that we both know she isn't your cousin!" exclaimed Jeremy.

"Yeah, and what if it was me?" asked Odd. "Aelita isn't your property as far as I know!"

"Aha! You see? You admit it!"

"I didn't admit anything!" said Odd.

"You just said it was you!" said Jeremy as he stood up.

"Hey, have you gone bananas?" asked Odd as he stood up. "Your eyesight's not great, but your hearing's worse!"

The teacher coughed as the class looked at them.

"If you have more important things to discuss then I suggest you do it in the principal's office!"

Principal's office

"In your case, Odd, this comes as no surprise. But you, Jeremy, a model student in all areas! I simply don't understand," said Delmas as he tapped his finger against the desk.

"Well…I…"

"Two hours of detention should help you to find some more convincing arguments. And you're lucky it's Valentine's Day, or I'd have given you at least four!"

They walked out of the door and down the corridor.

"I'm still waiting for an answer!" said Jeremy.

"Hey, why don't we call a truce, ok?" asked Odd. ""Why aren't you questioning Harry?

"Was it you who gave her the necklace, yes or no?" asked Jeremy. "As for Harry, Aelita is actually his cousin."

"Ok then, no truce!"

Outside

"Come on Jeremy, it's stupid to fight over such a little thing," said Ulrich.

"He's right," said Yumi. "Odd has every right to give her a present if he wants too."

"Talking about presents…" Ulrich fished the necklace out of his pocket and gave it to her.

"Oh thank you Ulrich!"

"Um, Ulrich? Could I talk to you for a second?" asked Sissi.

"Uh, well, only if it's really important," said Ulrich as she gave him an envelope. "For me? Is this for Valentine's Day?"

"Ha, no, it's for Christmas! Of course it's for Valentine's Day! What do you think, hm? Come on, open it, stupid!"

"Wow! A ticket to the Subsonics concert!" exclaimed Ulrich.

"Isn't that your favourite group?" asked Sissi. "Before you ask, I just wanted to give you a last Valentines present…"

"Hm, well, yeah!" said Ulrich.

"I must be dreaming…" muttered Yumi.

"Harry, I have something for you." She handed him a book on programming. "I'd thought you'd like."

"Thanks Sissi."

"Yumi! I've got something for you!" called William. He handed her a bouquet of roses.

"Oh, thank you, William!"

"I must be dreaming…" muttered Ulrich. "It is valentine's day though so he has a right to give her a present."

"How did you know that I liked roses?" asked Yumi.

"I didn't."

Yumi kissed him on the cheek.

"And that's just her thanking him," muttered Ulrich.

Aelita

Sparks came out of the necklace as Aelita splashed water over her face. She grunted as the sparks focused on her head and the eye of Xana appeared in her eyes.

Outside

"Isn't it a bit ridiculous to fight over such a little thing?" asked Jeremy.

"You're one to talk," said Ulrich. "We're not fighting anyway. We're allowed to have presents from other people, even if we're in a relationship.

Harry rubbed his head. "Xana's attacking," he said as he focused on what he was trying to do. "That necklace that Aelita got… it was from Xana!"

"Where is she?" asked Jeremy as he looked around.

Class

"Settle down," said Ms Hertz as Harry and Jeremy sat down next to Aelita. "Open your textbooks to page twenty seven. The anatomical structure of muscles."

"Where were you?" asked Jeremy. "We were looking for you."

"I was, um…" The necklace glowed which Harry noticed. "Do you think we could go to sector five after class? I know where to find the data for the antivirus."

"The one that could free you from Xana?" asked Jeremy. He glanced at Harry who looked at Aelita and nodded. "It came to you just like that?"

"Well, let's just say that your necklace inspired me."

"The thing is, I don't think anyone will want to go today," said Jeremy.

"I can go by myself," said Aelita.

"It's too dangerous. I let harry go on his own because he can easily avoid anything Xana sends at him. Xana will do anything to steal your memory. And he knows that Harry will eventually follow."

"Please Jeremy, I'm positive I'm on the right track. And with a vehicle like the Overjet, I can get away from any monsters. Please?"

She kissed Jeremy on the cheek and he fell off his chair in shock.

"Jeremy!" The class laughed at him.

"By the way, you're not using the Overjet," said Harry.

Principal's office

"That's two more hours! Four hours of detention. I'm going to have to suspend you if you do anything else!" said Delmas as Jeremy left. "Jim sees Spider-Man stuck to the ceiling, my best pupil is acting like a clown…Valentine's Day is making everyone crazy!"

Harry's and Jeremy's dorm

"Yumi says she'll go with me to Lyoko!" said Aelita as they stood outside the door. "So did Harry."

"Only so I can find uncle again," called Harry.

"After everything that's happened today, it'll be nice to get something accomplished!" said Jeremy. The eye of Xana flashed in Aelita's eyes. Nobody noticed.

Lab

"Ready ladies?" asked Jeremy. Harry coughed. "And guy. I'm starting up the process. Transfer Yumi. Transfer Harry. Transfer Aelita. Scanner Harry. Scanner Yumi. Scanner Aelita. Virtualisation! That's weird."

There was a flashing light on Aelita's avatar.

Lyoko

"Vehicles for the ladies coming right up!" said Jeremy as the Overjet started to load. The loaded up the Overwing and Overboard. "Materialisation. You need to go due east to get to the edge of the Sector."

"No way. I'm heading north." Said Aelita.

"I don't understand. You're supposed to go to sector five."

"Sorry Yumi," said Aelita as she swept her feet out from under her before kicking her into a tree. Harry grabbed Aelita's shoulder and stopped her.

"You're not going anywhere." Aelita pried his hand off and jumped onto the overboard. Harry watched her go for a second before climbing into the Overjet and following her.

"Yumi? Aelita? Harry? What's going on?"

"Aelita's been possessed by Xana," said Harry as he caught up to Aelita. "It's the necklace I bet."

"Yumi? Can you hear me? Are you ok?" asked a worried Jeremy.

"Oh…I'd be lying if I said I was…what's gotten into her?" asked Yumi as she woke up.

"Harry thinks she's been possessed. He's following her. You need to stop Aelita. She's going north."

"Ok, I'll try," said Yumi as she jumped on the Overwing and flew after them. "I'm going to need some back up though. Just in case."

"I'm on it." He called Odd.

"Jeremie, we're supposed to be doing two hours of detention now! Speak slower, I can't understand a word! … Hm? … An attack by Xana? Is that all you could think of as an excuse for us to make up?" asked Odd.

"Listen to me Odd, it's an emergency!"

Jim took the phone off him. "No mobile phones in school. Detention. Where is Jeremy Belpois?"

"Odd? Odd? Can you hear me?"

He tried Ulrich.

"Huh? Jeremy? Right on it!"

Aelita continued down the path as Harry tried to destroy the overboard.

"Isn't that dangerous?" asked Jeremy.

"Well, we've got to stop her. If that means destroying the overboard, then that's what we do." He shot again.

"I can see them," said Yumi as she flew in the trees. Harry glanced at her.

"Yumi, do you know how she got that necklace?" asked Jeremy.

"I think she found it outside her door." They continued to follow Aelita. "Do you think Xana might have put it there?"

"I think so," said Harry. "I've been getting weird vibes from it every time I saw it."

"I'm launching the super scan," said Jeremy as he started it up. "That would give us our answer. I think it's the necklace too. He wants to lead her straight to one of the Scyphozoas. That would also mean that Harry would follow and gives him a chance to possess him. That was what I was afraid of! Xana has launched an attack!"

"Don't worry," said Yumi as she flew just behind the two. "I've just about caught up with them."

They flew around a corner and Harry destroyed two Krabes.

"I was just about to say thins was too easy," said Yumi. A stray shot caught the Overwing and Yumi fell to the ground. Harry flew back and Yumi climbed in.

"Jeremie! I don't want to sound pessimistic, but if Ulrich and Odd could hurry up a bit…!" said Yumi. "I know the Overjet moves as fast as its owner but…"

Kadic

"You see, Jim, Aelita's got 104 fever, so naturally she wants to see her cousin! He's her only family!" said Ulrich.

"A minute ago it was 103!" pointed out Jim.

"Right, her temperature keeps going up by the minute! Hehe…" said Ulrich.

"What do you take me for, some kind of idiot?!" asked Jim.

"Well um…no! No, Jim," said Ulrich as his phone rang. "Ah, excuse me! Yeah. Well, no, Jim doesn't believe me. About Aelita's fever!"

"Ok, put him on, Ulrich!" said Jeremy as he started the voice manipulation program.

"Here you are, Jim. It's…it's for you," said Ulrich as he handed Jim the phone.

"Yes? Yes? O-of course! I-I understand, Mr Delmas!" said Jim.

"Huh?"

"Do you hear me, Jim? Let Della Robbia see his cousin!" said Jeremy in Delmas voice.

"Uh…very well! Whatever you say, sir! Hm…say, um, uh…uh, when you have time, could I speak to you about a personal matter? It's about Suzanne Hertz," said Jim.

"I…well…um…uh, I…um…oh, it's a tunnel! We're about to get cut off!" said Jeremy quickly, still in Delmas's voice. The call ended.

Outside

"How did you manage that with the principal?" asked Ulrich, on the phone again.

"I wrote a new program!" said Jeremy. He started the program again and talked in Delmas's voice again. "Stern, Della Robbia? Hurry up, things are getting hot here!"

Lyoko

The two continued to follow Aelita.

"Man, where is she going?" asked Harry.

"She's gone to the ice sector through the way tower!"

"On the Overboard? Are you absolutely sure about that?" asked Yumi as Harry flew straight towards the tower.

"Uh, well, yes! There's no reason you couldn't!" said Jeremy hopefully.

"If you're wrong I swear I'll…whaaaa!"

Harry and Yumi entered the Tower, went through the data stream and found themselves in the Ice Sector.

"You swear you'll what?" asked Jeremy.

"Um, nothing!"

"Can't do without me, huh? You won't get mad if I save Aelita, will you?" asked Odd as the doors opened.

"Odd!" warned Ulrich.

"No, let him, Ulrich. He's right, I was being stupid!" said Jeremy.

"I don't blame you Jeremy, I understand! I'm a pretty charming guy! It's only natural you'd be jealous of me!" said Odd as they went down to the scanners.

"Transfer Ulrich. Transfer Odd. Scanner Ulrich. Scanner Odd. Virtualisation!"

"Harry, can you bump into the overboard?" asked Yumi.

"Err, I don't know," said Harry. "If the wings get damaged but there isn't enough damage to devirtualise it, it won't be able to fly. Hold on."

He flew into the Overboard and it disappeared, leaving Aelita on the wing. Yumi jumped off along with Aelita.

"Don't be reckless!" called Harry.

"Aelita! You must stop obeying Xana!" said Yumi as she jumped in front of her.

"Leave me alone!" Aelita used her Creativity to get rid of the floor under Yumi's feet. She grabbed onto the edge as Aelita ran off.

"NOO! Uh…Jeremy, could you just remind me what'll happen if I fall into the Digital Sea?" asked Yumi as Harry flew underneath the ice.

"If I were you, I'd avoid it!"

"Well then if you could help me out of here I'd appreciate it!" said Yumi as harry flew upwards.

"Let go!" he called. She glanced down and released her grip. She landed on the Overjet.

"Thanks Harry!" They started to follow Aelita again.

"Remind me to boost that program," muttered Jeremy. They caught up with Aelita.

"That's enough Aelita," called Harry. "Yumi, do you think you can pilot the Overjet?"

"What?"

"I'll take that as a yes." Yumi crawled to the front and swapped places with Harry.

"How do you fly this thing?!"

"Oh, right." Harry reached down and tapped a control. The display switched to something Yumi could understand. "It's in safe mode. You won't be able to move at its top speed but it will do everything else. Bye."

He jumped off and Yumi quickly changed course to avoid crashing. Harry joined up with Odd and Ulrich.

"Aelita!" called Odd. "It's me, Odd! Wh…ah…"

Aelita created an ice wall.

"Aelita! Nooooo!" cried Odd. Harry looked around and saw a shadow. He grabbed Odd and Ulrich.

"What are you doing?" asked Ulrich.

"Trying out an idea!" They ran into the shadow and came out behind Aelita.

"Hey, that's cheating!" said Odd. The Scyphozoas came out of the cave. Odd shot at it.

"Aelita! Stop!" The second Scyphozoa approached Harry and picked him up. Aelita froze Odd and Ulrich's feet.

"That's cheating too!"

Aelita got picked up as well and the monsters did what they were designed to do. Harry had a look of fierce concentration on his face.

"You have to have an idea Jeremy," said Ulrich as he looked at Harry. "I don't think Harry can keep it up forever."

"I do have one idea," said Jeremy. "I need Yumi to help though."

"How do you shoot on this thing?" asked Yumi.

"I think there's a trigger on the joystick," said Jeremy. "I would ask Harry but I don't think he'll answer. He's kinda busy and I don't want to distract him."

Yumi found it and shot the ice wall to pieces.

"Odd! Aim for Aelita! Yumi, aim for Harry."

"Huh?! Are you crazy?!" asked Odd.

"Don't forget, if Aelita loses all her life points, she'll disappear forever," said Ulrich.

"Xana wants her memory, he won't risk losing that. Deep down, he wants her alive as much as we do," Said Jeremy. "As for Harry, well, if he loses his life points, he'll return to earth."

"Huh? Are you sure?" asked Yumi.

"No. But I can't think of anything else…"

Harry was placed gently back on the ground and he turned to face them, the eye of Xana showing.

"It's a bit late," said Odd. "Xana has Harry. I guess it was because his will was weaker than normal because of his inability to protect Aelita. Or he just gave up because Xana said something about being unable to help Aelita."

"That's smart for you," said Jeremy as Harry slowly approached them.

"Harry, remember who you are!" called Yumi. "Aelita can be helped if you just resist."

Harry paused and looked at her.

"Remember when we were seven," said Ulrich. "You saved me then by pulling me out of the river."

Yumi and Odd looked at him. Ulrich shrugged. "Shared memories."

"You've saved all of us," said Jeremy, picking up on what Ulrich was trying to do. "By taking the risk of going to Lyoko, even though it doesn't seem like much to you. You're important to us."

"Yeah, you even defended the school," said Odd. "When Xana sent his monsters to attack it."

Harry clutched his head as Odd aimed at him.

"Don't bother Odd," said Ulrich. "If Harry is unable to get out of Xana's grasp, he'll be able to dodge your shots. Then there will be no point in coming here. Harry is too strong."

Harry fell to his knees and looked at them.

"What… happened?" He glanced at Aelita and cut the tentacles, forcing Xana to let her go before picking her up again.

"Uh-oh, the Scyphozoa's at it again! It was too good to be true!" said Odd as he shot at Aelita. "And Xana's after Harry again."

"Oh no you don't!" Harry went all out, angrily using every weapon he could. The Scyphozoa blew up and the other one let go of Aelita who sat up.

"What's going on? Why are you aiming at me?" asked Aelita. "And what's up with Harry?"

"Oh! Haha… said Odd as Yumi landed the Overjet and ran over.

"Harry!" She hugged him. "Thank goodness you snapped out of it. What did Xana say to you?"

"I don't feel like talking about it."

"Back off Yumi," said Ulrich. "He'll talk in his own time."

They ran over to the tower.

"Harry, do you want to deactivate the tower?" asked Jeremy. Harry nodded and entered it. He rose to the second level and pressed his hand to the screen.

Harry

Code

Lyoko

Lab

Jeremy stamped on the necklace and picked up the chip. "I'm going to study this. You never know, I might be able to get some interesting information about Xana!"

"And from now on Aelita, you don't take any presents from anyone," said Ulrich.

"Promise," said Aelita. "You know, Jeremy saved my life. And that's the nicest Valentine's present anyone could hope for! Of course, we can't forget what Harry does without realising it."

Harry blushed.

"Yeah, but that sure won't save Jeremy from being suspended for missing for missing four hours of detention. The principal's not going to be too happy about that! But I'm sure there's a solution!" said Odd.

"Hm…hey, what're you looking at me for?" asked Ulrich as everyone looked at him.

Kadic

"I'll be really happy to the concert with you if you promise to tell your dad," said Ulrich to Sissi.

"Don't worry. I'll get Jeremy out of this," said Sissi as they walked off, hand in hand.

"Now that's a real friend, ready to sacrifice himself for his pal!" said Odd. "Harry, are you ever going to tell us what Xana did to possess you? I mean, he hasn't done it before."

Harry sighed. "He made me feel worthless."

"Are you sure Ulrich's sacrificing himself as much as all that?" asked Jeremy. "He doesn't seem to be bothered by it! Harry, you're not worthless. You're the best programmer out of our group. Ignore Xana."

"It's not that easy. I know I make it look easy but it's not," said Harry. "Can we change the subject?"

"Ulrich wrote a poem for me," said Yumi. "Sissi made him read it to her but it was for me."

Yumi and Aelita laughed. Harry smiled.

"Well, at least I know who my friends are," he mumbled.