"Odd, you protect Aelita while she's in the tower," Ulrich Stern told Odd Della Robbia in Lyoko one night as he deflected attacks from a Blok.

"Yes sir, mister Ulrich, sir," said Odd, shooting at the blok that Ulrich was fighting. He watched it explode as his laser arrow hit Xana's eye dead center before heading for the tower.

"Ulrich, better watch your back, Odd's catching up to you," Jeremie laughed, seeing the statistics in a window on his computer screen. Odd was only a monster away from being tied with Ulrich. Of course Yumi was way ahead of both of them.

"He hasn't been able to beat me yet. Some bloks are no big deal," Ulrich responded. He triplicated and sent his sword through the last block just as two Krabs approached him.

Yumi looked over Jeremie's shoulder. "What's Xana doing? As far as I know there's nothing going wrong here. An activated tower but nothing in result?"

Jeremie nodded, glancing at the news. "Nothing too severe, some robberies that have been stopped, some rain in Italy… Maybe we're just taking him down faster than he anticipated."

"What's Xana doing? Aelita is already deactivating the tower, so I guess we'll just materialize everyone when she's done and take a look?" Yumi asked.

"Scyphozoa!" Jeremie hollered suddenly.

In Lyoko, Odd turned from the tower he was leaning on to see the Scyphozoa. Aelita was in the tower already so she was safe. Why was it here?

"Odd, take it out," Jeremie commanded frantically. "That's what Xana is doing… he just wanted to get us on Lyoko.

"I'd love to Einstein, but I forgot to tell you… I'm out of arrows. I figured I was done…" Odd replied, stepping away from the Scyphozoa, feeling like a complete idiot.

Jeremie went to work to set Odd up with arrows. "I really need to find a way for you to have unlimited ammo…"

An error message came onto the screen. Jeremie was unable to give Odd ammo. He panicked more and started to tell Odd that he was on his own when -

"Wait!" Yumi screamed. "That thing has Odd!"

"What?" Ulrich yelled. "I have my hands full with monsters. Can Aelita take care of it when she's done with the tower?" He dodged a blow from a Krab but the other Krab hit him. He devirtualized.

Aelita finished deactivating the tower and ran out to help Odd. An energy blast sprouted from her hand

"Energy field!" she cried and she sent it straight for Xana's eye in the middle of it.

The monster released Odd and backed away into hiding. Aelita knelt down to see what the damage was.

"last time the Scyphozoa got Yumi it took away her human code or whatever. You think Xana's trying to do that to Odd?" Ulrich asked when he came up to join Yumi and Jeremie.

"Maybe," Jeremie replied. "Or he has another plan, Xana usually doesn't do the same thing twice. I'm going to try to devirtualize him to find out."

Odd woke up, shook his head. "What's happened? I feel kind of funny."

"The Scyphozoa did something. For now let's go into the tower to be safe, Hmm?" Aelita suggested to him. She helped him up, They went into the tower and Odd fell to a sitting position, he had a killer headache.

"Odd, get up and let me scan your virtual structure. Stand right in the middle of the tower and stay still," Jeremie told him. "The devirtualization didn't work."

Odd cursed under his breath. "I may love being a Lyoko Warrior, but I don't want to stay here alone." He stood up and followed Jeremie's orders. Jeremie scanned Odd's character and copied the files to his hard drive. He looked everything over.

"Almost done?" Ulrich asked impatiently. He sat with Yumi on the ground next to Jeremie. "If we're all late to class…"

"I found it! Oh Odd…" Jeremie looked at the file helplessly. "Xana has inserted in you a part of him. That piece is preventing you from being devirtualized."

"So what's going to happen to me?" Odd asked, wide eyed. He jumped away from Aelita, now that he knew part of Xana rested in him, he knew Aelita could be in danger.

"You can't leave Lyoko. Next time we go in we'll need to go into sector five to figure out how to fix this. I'll start checking around to see if I can access anything on my own."

"Devirtualize Aelita now then. If Xana has something in me, I don't want her around if it surfaces," Odd said. "I'll just hang out in the tower until you guys can come back."

"You're sure you'll be okay, Odd?" Aelita asked as Jeremie began her devirtualization. A look of worry was plastered on her face.

Odd nodded and smiled as she disappeared from his sight.

"Just hang tight Odd, I'm staying here to work on this, but the others are going to go to class so our teachers don't get suspicious. They'll make up a good excuse for us," Jeremie promised.

"Yeah, we'll tell them your stomach exploded, Odd," Ulrich joked.

And Jeremie's brain exploded?" Yumi added, laughing.

"Ha ha," Jeremie and Odd said at the same time in the same sarcastic tone.