A Whole New World

by Oxnate

I do not own Buffy the Vampire Slayer or Stargate SG1. The title is from the Disney movie Aladdin. It seemed appropriate. I don't own that either.

Challenge response from tasuxeda. Xander the symbiote and host.

Xander ends up a goa'uld or a tok'ra for Halloween and afterwards he is left as a symbiote and a host pair but they are both still Xander.

Xander must retain the memories of the host and symbiote however the memories of the host will fade like in canon but not the symbiote's memories and the memories of the symbiote must change the Xander symbiote so if the Xander symbiote was goa'uld he must act more like a goa'uld and same if a tok'ra how much a change is up to you.

The symbiote must end up crossing over with Stargate as a goa'uld, tok'ra, or may favorites an individual party or a member of a SG team or something else if you want but Xander the host doesn't have to be he can stay in Sunnydale if you want.

I've been trying to do a Xander/SG1 Xover for a while now. Just couldn't get it going. Thanks to Tasuxeda for the inspiration. This story takes place starting in Season 2 of each series. Though, the time-lines are going to be off. I've never watched SG1 cover to cover so my idea of when stuff happens is likely off. Thank you to the Stargate Wiki for help.

The FFN version here was originally optimized for Text2Speech readers, but the amount of editing that has gone into this story and the amount of work it is to change that, mean that I couldn't do two versions any longer. My apologies to those that use such programs.

Please review! Compliments make me write faster; criticisms make me write better.

/ Xander's thoughts /

% Jolinar's thoughts %

#"Tok'ra or Goa'uld voice"#

Something was wrong here. The last thing he remembered, he was attacked by that Ashrak and trying desperately to save his host. That poor woman. Nothing had gone as planned with her. And he was clearly no longer in her body. He had no memory of being transferred to this host. Could he have taken yet another host without its permission? It was becoming a disturbing trend for one who called himself a Tok'ra. For now, there were more immediate considerations. He seemed to be surrounded by hostile aliens of some form or another. Even the small one that attacked him was exceptionally strong for its size. Nothing that Jolinar of Malkshur couldn't handle. But still, it was worrying. A full grown beast of this type would likely be a challenge. Especially in numbers. Jolinar was pulled from his thoughts by someone yelling at him.

"Xander!" red-headed woman yelled at him as she waved a hand in front of his face and snapped her fingers. "Earth to Xander!"

"Huh?" he replied in a human voice. So, he was still on Earth. But at least he was no longer a prisoner.

"Sheesh." the girl huffed. "You okay, Xander? You went kinda spacey on me there."

The host's name was Xander. Best to play along until he knew more. "Yes. Sorry. It's just..." He trailed off, letting his companion fill in her own blanks.

"I know." she said. "It's freaky. But we have to keep our heads. Besides, for the Hellmouth, this isn't a big deal. First things first though, let's get off the street." She went to take his hand, but it passed right through.

"Odd. Are you out of phase in some way?" Jolinar asked.

"What? I don't think so. I-I dressed as a ghost... and now I'm a ghost. You dressed as... what did you dress as?"

Jolinar was stumped. What could he possibly tell her that would satisfy her and not expose him to the SGC. He frantically started searching Samantha Carter's memories for a suitable explanation. Luckily the red-head had already moved on.

"We just have to find... Buffy!" She yelled the last word as she spotted this 'Buffy' and ran over to her. "Buffy. Are you ok?"

The reply was cut off when two monsters approached from the other side of the street.

"Buffy, what do we do?" the ghost asked.

The only answer was a thump when the girl known as Buffy fainted.

Unarmed, Jolinar prepared himself for battle by rotating his shoulders and neck. He stretched them and tested his strength. A little eye-glow allowed him to see every detail, even in the dark; along with adding more of his strength to his host. At least this host felt strong, a warrior; he was certain of it. He placed himself in front of his companions. #"Arik tre'ac te kek."# (We do not surrender, even in death) He said in his deep voice and allowed his eyes to burn bright. The beasts apparently thought it was a good enough show and decided to retreat.

"Xander! That was great. How did you do that?" the red-head asked. A groan from Buffy distracted her.


"Buffy, are you alright?" the ghost asked.

"Buffy?" Buffy asked.

"She's not Buffy." the red-head sounded disappointed.

Jolinar took Buffy's hand and helped her up.

"What year is it?" the spirit just wasn't giving up.

"1775, I believe. I-I don't understand. Who are you?"

"We're friends." the ghost answered. "I'm Willow and this is Xander."

At last, Jolinar had the red-head's name.

"F-friends of whom? Y-your dress... Everything is strange! How did I come to be here?" The confused woman babbled.

"Breathe, okay, breathe. You're gonna faint again." Willow said. Then to Xander, "How are we supposed to get through this without the Slayer?"

Jolinar was confused and just shrugged. "I would suggest..." But he was cut off.

A monster came around the tree behind Buffy and roared, fangs bared and claws raised to attack. Buffy screamed and backed off. Jolinar jumped in and punched the monster out.

Jolinar turned back to the girls, "Like I was saying, I suggest we get inside before we come across anything..."

Buffy cut him off, "A DEMON! A DEMON!" she screamed, pointing at him.

A car came driving down the street behind Jolinar with its headlights on.

Willow turned to see the car. "That's not a demon. It's a car."

"It's eyes were glowing."

Jolinar froze. Unsure if Buffy was referring to him or the vehicle in the road. He wasn't sure if he had allowed his eyes to glow that time, but there was a good chance he had done it by accident. It happened a lot during stressful situations, and this certainly qualified. He would have to be more careful.

Willow saved him again by jumping in and explaining cars. "It's okay. It's a good demon. It wont hurt you as long as you don't get in its way. The glowy-eye thing is normal. Okay?"

Buffy wasn't looking at the car as it drove away though. She looked right at Jolinar. "Good demon." She said.

Jolinar nodded and repeated, "Good demon. I'll protect you."

"Great. Glad that's settled. Now let's get inside." Willow started off and motioned for the others to follow.

They got to the Summer's house and scared away the demon at the door. Willow went out and led Cordelia into the house when she ran by screaming. Jolinar met the hairy beast at the door and used his eye glow to scare if off, but only once he was sure that none of the women could see him. Cordy freaked a little bit when Willow left through the wall to get Giles, but calmed down again once Angel appeared. After all, it wouldn't do to let tall-dark-and-mysterious think that stuff like this freaked her out.

"Oh, good! You guys are alright. It's total chaos out there."

Buffy looked as confused as Jolinar felt, though he let her say the words, "Who are you?"

"Okay, somebody wanna fill me in?" the new stranger asked.

"I'm not quite sure myself." Jolinar admitted. The new arrival was giving him the... wiggin's. He wasn't quite sure where that word came from either. Perhaps from his new host. He hadn't had the time to initiate a conversation with his new host yet. If the host was making itself known in spite of Jolinar's suppression, then this man would be a strong host indeed. Samantha Carter had been very strong mentally as well. He wondered if that was chance that he found two such strong hosts on this planet or if this planet created humans who were mentally stronger than the galactic average. He put aside such thoughts as the conversation was continuing without him.

"Buffy... What's up with your hair?" the new guy wondered.

Cordelia came back downstairs after hearing Angel's voice, "She doesn't know who she is, everyone's turned into a monster, it's a whole big thing. How are you?" she flashed a beatific smile at him.

The lights went out. Buffy grabbed Cordelia in fright.

"Well, alright, l-let's, let's, let's review. Um, so everybody became, uh, whatever they were masquerading as." Giles confirmed.

Willow nodded, "Right. Buffy was an 18th-century girl and Xander was... I'm not quite sure. He seemed okay."

Giles scratched his nose, "A-and, uh, your, your costume?"

"I'm a ghost!"

Giles began stammering, "Yes. Um... w, uh, uh, uh, the ghost of what, exactly?"

Willow covered her midriff with her arms, "Well, this is nothing. You should see what Cordelia was wearing. A-a, a unitard with cat things, like ears and stuff."

Giles was shocked, "Good heavens. Uh, sh-sh-she became an actual feline?"

"No! She was the same old Cordelia. Just in a cat costume."

"She didn't change." Giles confirmed.

"No. Hold on... Partytown. She told us she got her outfit from Partytown." Willow deduced.

"A-a-and everyone who changed, they, they, they, they acquired their costumes where?"

"We all got ours at a new place. Ethan's" Willow admitted. "But so did Xander, and he didn't change."

"Perhaps. Still, I think it would be wise to check out this 'Ethan's' first."

That foolish woman. The entire party would likely have been safe back at the domicile if she had not run off. Jolinar thought angrily. He threw another set of blows at the … strange man he was facing. Bad teeth and an eye patch. How odd. Also the Feline Person and the one known as Angel insisted that this was temporary and he couldn't kill his opponent. This would be so much easier with a zat'nik'tel. But he would have to do this the old fashioned way and hope he didn't kill the boy. Still, once he was done, he felt the first stirrings from his host. Feelings of pleasure and pride. Which confirmed that his host was very strong indeed. But that fact was unimportant for now as more monsters decided to attack.

"Hello Ethan."

"Hello Ripper."

The fight in the warehouse was tough. Only two fighters against more than a dozen monsters. The warrior Angel made a good account of himself. He also seemed stronger than a normal human, but sheer numbers and the fact that they couldn't kill the smaller monsters eventually led to their capture.

"Honey, I'm home." Buffy smacked the blonde vampire after she recovered herself. They fought but he eventually escaped. Most of the other monsters changed back when Buffy did as well. "You know what? It's good to be me."

"Hey, Buff. Welcome back." Xander said.

"Yeah! You, too." Buffy replied

"You guys remember what happened? Wait! You didn't change." Cordelia poked Xander.

"Oh yes I did," Xander insisted. "It was way creepy. It's like I was there, but I couldn't get out."

"What did you go as?" Buffy asked. Xander mumbled something that no one else could hear. "What's Wormhole X-treme?" She asked.

A/N: Quick explanation. In my world, Wormhole X-treme was a USAF special project meant to leak classified info in such a way that no one would take it seriously and also test what the public's reaction to knowledge of the Stargate program would be. WHX uniforms have no names and Xander went as the tall, dark haired member of the team without glasses. WHX didn't survive it's first season and was already off the air by Halloween. The spell transferred the personalities and memories of Captain Samantha Carter, the inspiration for the WHX character who no longer existed. The spell happened to coincide with Sam playing host to Jolinar of Malkshur and both were transferred just before Jolinar died.

Oh, and I realize that Jolinar mostly picks female hosts and her mate has a male host, but there will be NO slash in this fic.


Chapter 2

Please review! Compliments make me write faster; criticisms make me write better.

Xander could not sleep that night. He doubted it was possible that anyone who had experienced what he had would be able to. Not only was Halloween a rather traumatic experience, but he now had three sets of memories running through his head and completely eliminating any chance for sleep. His own memories, he dealt with just fine. But Captain Samantha Carter and her symbiote Jolinar's memories were something else. Already he had filled two notebooks with ideas and computations dealing with theoretical physics. Worse, Jolinar's memories had shown him some places where Carter's were wrong. If that wasn't enough; he now knew that one of his favorite sci-fi shows, Wormhole X-treme, was real. Not the campy actors from the show. But real, life and death battles. Every episode was so good because it was real.

Next on the creepy scale were the new skills he had. He knew he could fly a plane and several types of alien spacecraft. He could field strip and fire many weapons. Not only that, but he could probably make a few Goa'uld weapons from scratch. And worse, he knew what the Goa'uld, the Tok'ra and several other species of alien were and that they actually existed. As if demons and vampires weren't enough.

The real question was 'what now?'. First things first. He needed to find out if any of this was real. He snuck out of his house and headed for school. It was quite late and probably wasn't safe for him to be walking around Sunnydale alone in the dark. But in his current mood, Xander almost hoped something did try to jump him. He was kinda itching to test out Captain Carter's Level 3-Advanced CQC techniques on a vamp. Fortunately, or unfortunately, no one bothered him on the way to school. Breaking into school was far too easy the Carter memories told him. Could you feel disapproval from a memory? Xander certainly could. Jolinar at least was silent, which Xander was thankful for. He then made his way to the computer lab. Carter's computer skills were top notch. Probably even better than Willow's; a fact that she was never going to find out, he told himself.

Logging on he entered the address for Stargate Command and swallowed. He wasn't sure if he wanted this to be real or not. On one hand, he really had enough to deal with already, he didn't need this. Carter's memories showed him just how close they had come to being blown up very recently. And Jolinar's told him just how dangerous the Goa'uld really were and that they were incredibly lucky this last time. Part of him sincerely wished that these memories were just a spell and would fade. But on the other hand, after living in Sunnydale for so long – he would rather know what was out there than bury his head in the sand. He pressed enter.

"Welcome to StarGate Command. Home of the Air Force's Deep Space Telemetry Program." There were no other words or links on the page. Accessing Carter's memories, Xander inputted a key-code combination and boxes for username and password popped up. Entering the Captain's info, he logged in. It's real. It's real. It's real. Xander repeated to himself after the page popped up. There really wasn't anything he needed off the system. He just needed to know whether it was real or not before making his next move. The sky outside started brightening. It was almost morning. He shut down the computer and went to scavenge for breakfast.

Xander found an industrial sized can of peaches in the school kitchen and finished the whole thing off, and the juice, before heading to the library to read.

"Xander! Did you sleep?" Giles asked as he entered the library to find the boy there. Giles wasn't surprised to find him here on a Saturday morning, he was more shocked to find him voluntarily reading. He surreptitiously checked to see if it was a comic book as Xander was known to hide them in larger tomes to make it seem like he was reading something more important. But not this time.

Xander smiled and was about to assure the Watcher that everything was fine but the lie died on his lips. "No." he sighed. "Long night."

"I see." Giles replied gently. "If I may ask, Willow was unsure of what you went as for Halloween."

"Are you familiar with the TV show 'Wormhole X-treme'?" Xander asked.

"No, I'm afraid I am not."

"I went as an alien from that TV show." Xander explained. "It was a good alien, an ally of Earth, but..."

"...But there are now thoughts of an entire lifetime lived as an alien?" Giles finished.

"Worse. Have you ever heard of Genetic Memory?" Xander asked. Giles' eyes narrowed, but he made no other move. "Well it turns out I have this alien's memories and his parents, and their parents back a long, long way."

"Dear god." Giles managed to whisper. "How far back?"

"The world is older than you know, and it wasn't always a paradise..." Xander began the speech. "A ways."

"But it's a television show. It's fictional. Right?" Giles finally got a grip on his thoughts.

"That's what we're telling everyone else." Xander informed him.

"But your friends..."

"Don't need any more on their plates right now." Xander cut him off, "There's nothing they can do anyway. The US military is handling it right now and they aren't going to be interested in working with a bunch of kids still in high school. And worse, I wouldn't want to trust certain people in the military with knowledge of the Slayer. They are looking for weapons to fight some very bad aliens and I don't want Buffy to end up as one of those weapons."

"So, what will you do then?" Giles wondered.

"I have knowledge they could use or at least knowledge of people who could help them. I'll see about sending this info to them soon. Otherwise, I think I'll just try to live and let live. They won't want help from a 17 year old kid and I don't want to end up a science experiment myself." Xander smiled. "So, how did you get this info, kid?" a passable imitation of Colonel O'Neill even if Giles didn't know it. "Magic?" he answered in a falsetto, then he took a deep breath and shook his head. "I don't see that ending well."

"Is there anything I can do to help?"

Xander looked up at the Watcher and thought for a moment. "Actually, there is one thing I could use some help with."

"As you were." Major General George Hammond intoned as he entered the briefing room. He sat down and handed out briefing folders. "At 0500 local time the public severs for the SGC were accessed from outside this complex."

"Were they hacked?" Daniel asked.

"No, they used a username and password." the general answered.

"Isn't that what the website is for, Sir?" O'Neill then asked, sarcastically.

"Yes. But it was accessed using Captain Carter's username and password. And the login came from a place called Sunnydale California." The general explained.

"But Sam is still in the infirmary. I just saw her this morning." Daniel complained.

"Exactly. Someone in this town accessed our secure database using a username and password. If it were a simple hacking, I'd just let the FBI deal with it. But we have the second breach of someone having Captain Carter's login information. And that's something that we cannot allow."

"Was anything downloaded, changed, deleted?" Jack asked.

"As far as we can tell, no. But Captain Carter's access to the system is beyond even my own. She helped design the system, the website, and all the security. Theoretically, there should be nothing that someone from outside should be able to do. But they also shouldn't have her ID either." George stated. "Now there have been some unrelated minor hacking attempts that the FBI has traced back to Sunnydale as well. The high school specifically."

"The high school, sir? Kid's did this?" Jack was incredulous.

"Unknown at this time. The breach would have occurred at 0400 local time on a Saturday. It could just be someone taking advantage of poor security at the school to cover their tracks, but other hacks have happened from there when school would be in session. So we're not ruling anything out at this point. Due to the differing nature of the hacks, the FBI is sure that there are at least two different hackers in that town using two different MO's. This new one would make a third." The general paused and slid another folder to each of the three. "The three of you, along with SG-2 are going to Sunnydale to investigate this problem."

"The three of us, General Hammond?" Teal'c finally spoke.

"I've been pushing the President to authorize you to visit more of our planet for almost a year now, son. This was simply the first earth-side mission we could use as a reason for you leaving the base. Now, your existence and the existence of all alien life-forms is still classified. So, as long as you are away from this base, you will be known as 'Murray'. I hope you're okay with that."

Teal'c didn't say anything but did give a deep nod.

"Your folder contains all your cover documents. ID card, credit card, some money and other things. It also has a background for you as an immigrant to America. That cover story should help explain away any lack of knowledge you may have about our planet or country."

"Thank you General Hammond. I will not fail you." Teal'c intoned. There may have even been emotion edging into his voice.

"Just come back alive and bring your symbiote with you. To be honest, the idea of your symbiote escaping is what worries the president the most. A rogue Goa'uld loose on earth is quite literally his worst nightmare."

"It will not escape me, General Hammond. You have my word."

The general gave a small smile. "Good. Go get packed. Your plane leaves at 1620. You'll then take rental cars to Sunnydale. And Colonel?"


"You'll be driving back from Sunnydale once the mission is over. I don't want to hear about any car trouble on the way there, but you know how those rental cars are... Always getting themselves lost... After the mission is over. Understood?" The general met the eye's of his 2IC with a twinkle.

The Colonel returned the twinkle, a smile, and a salute. "Yes Sir!" he barked.

"Captain Carter will be remaining here to assist us with the technical side of the problem once she feels up to it." he stood. "Dismissed."