For those who do not understand; I don't own this. It's fan fiction people!

This is A Yugioh/StarGate crossover.

Pairings are; Yami/Yugi and some others I will not bore you with.

You don't like, you don't read.

Flames will be used for my bonfire.

Now to make this special, I am writing this because I have permission from Kyren to continue it. Now I will rewrite some chapters and put my own ideas into it, so don't get pissed of at anyone because you can't seem to follow the storyline anymore.

Now my very very special thanks to Kyren. (Goes on her knees and bows.) You are my God.

Let's get it on with this fic! (I didn't forget anything did I?)

Shadow Gate

Three plus One equals Four

Airplane Trip towards Japan.

"You know, I wonder if any one ever will stop giving me the Doomsday-feeling." Jack commented offhand.

"Doomsday, Sir?" Sam asked confused.

"Yeah you know, do this or die, win this or die; the total annihilation thingy is getting old. I just want one day where I can go fishing in peace." Jack said leaning back.

Sam had to stop herself from laughing. "Well if we didn't do what we did, I'm pretty sure we wouldn't be here anymore. Aside from that, every time we go into a life threatening situation we come out fine, and with more knowledge. Remember that if you, Sir, didn't put your head in that Ancient piece of technology we would never had met the Asgard. And if my father hadn't been ill he wouldn't be a host to a Tok'Ra Symbiot and they wouldn't be our allies. Or if you hadn't talked to Teal'c we…" Her reasoning was cut short by a loud snore from her superior. Glancing at her side she smiled. "Goodnight, Sir."

Egypt

Daniel and Teal'c were trekking towards a digging site with new supplies, to Daniel it was something he used to do in the past and Teal'c viewed it as an off world mission.

"It is strange, Daniel Jackson, that we have been send for this mission." Teal'c commented.

Daniel smiled. "Not really, I have quite a number of old friend in Egypt and Marik Ishtar is the younger brother of a colleague of mine. And this kind of reminds me of the past and Abydos." His mind made a quick track towards his old home and his deceased wife Sha'Re.

Teal'c nodded. "Indeed."

After a journey of several hours they arrived at the digging site where they met a woman with long black hair and blue eyes. She smiled and greeted the pair. "Hello Daniel, how have you been? And this is?"

Daniel smiled and shook her hand. "Hello Ishizu, I've been fine, a little bit busy but fine. And this over here is my… team member, Murray." He smiled as Teal'c bowed a little. "Murry and I are here for your little brother and his friends."

Any traces of a smile were gone of Ishizu's face. "My little brother and his friends are in one of the ruins. Might I ask what this is about, Daniel?"

"Well you know about my theories about the Pyramids being built by an alien race? It has to do with that. I'm afraid I can't tell you more, it's pretty much classified." He noticed the hesitation of his colleague. "Please Ishizu, it's very important. You know that if I had a choice I would tell you everything."

Sighing softly she nodded. "Come on, I'll take you to them. Do mind that Marik is a little it different then what I told you about him. Something has happened while my brother and I were apart."

With Ishizu as their guide they quickly met up with the boys.

Ruins

Yugi Motou was on his kneed reading some ancient texts. "This is all amazing, Marik. I'm so glad we could come with you." His friend smirked, pale violet eyes twinkling in amusement.

"Yeah, I'm glad you could come or else Ishizu would have grounded me into the next millennium, after the stunts I pulled."

Ryou smiled. "We know what you mean, I'm pretty sure my father would have locked me away if he knew what was wrong with me. Not that it would have helped much; you know that no lock or door can keep Bakura in or out. And it's not as if we have a choice in the matter." He turned to Yugi. "Sometimes I really envy you. You have the easiest one out of them."

Yugi gave an embarrassed smile. "Not really, Yami wakes up when the sun rises and makes sure that I wake up as well. He is easily cranky, arrogant, finds himself always in trouble and knows how to embarrass me. And he is very possessive, which can only be out done by his protectiveness. The worst is, he would do anything to annoy the other two and to duel Kaiba. Yes I really have the easiest one out of them all." He looked at his other half, as he, Bakura and Ishtar were arguing about the writing and what not. This was pretty much of a cussing and a fist fight between two of them and another, Ishtar, who stood at the side lines encouraging them and laughing as a maniac.

Yugi, Ryou and Marik simply watched and shook their heads. "It makes you wonder how old they really are." Ryou joked.

The spirits stopped in their fight as they felt people arrive. In a quick flash of light they were gone. Not too soon as Ishizu and two men walked into the ruins.

"Marik, this is Daniel and his friend Murray. Daniel and Murray, this is my brother Marik and his two friends Yugi and Ryou. Marik they want to talk too you three, I can assume that none of you will end up getting yourself into trouble?" though it was formulated as a question all three of them could hear the warning.

"Trouble what trouble, Ishizu knows that I do not get myself into trouble." Ishtar grumbled.

Marik sighed. "She's just worried one of us might send them to the Shadow Realm."

Yami narrowed his eyes as he observed the man named Murray. "I do not trust him Aibou, this man feels off. And his friend isn't much better either."

"What do you mean off?" Yugi asked "They can't be trusted?"

"That I do not know, but it is as if they had some one posses them, I can feel the residue of it." He relaxed his stance a little but he was still alert. "I'm certain the others have felt it as well, though I still want you to stay on guard."

"All right Yami."

The conversation between Bakura and Ryou did not go as smooth. "I don't like them, they stink." Bakura said.

"What is that supposed to mean?" Ryou asked, he never got his answer as his other half took over his body.

"Must you take over the body of your host!" Yami exclaimed.

"Yes, it's much safer that way. I don't know about you, oh Mighty One, but I trust them as far as I can throw them. And that is not much." He smirked. "It wouldn't do me any good if my host ended up dieing on me now would it."

With a sigh Yami dropped the argument.

Yugi smiled at the duo before them. "What can we do for you Daniel-san?"

Daniel smiled a little. "Well Yugi, Murray and I work for the American Military and we need the help of you and your friends." He watched as the expressions of their faces switched from shock to wonder.

"Let me take over Aibou." Yami quickly stepped in.

Bakura smiled smugly and Ishtar took over Marik.

"And what exactly might our help entail?" Yami Yugi asked. He could disturbingly feel something familiar, something of Ancient times he had forgotten, something that was meant to be forgotten. He tried to reach for it but it escaped his grasp. Apparently Bakura was having the same problem, but Ishtar who was so much younger then they were didn't notice a thing aside from the feeling something was off.

"Well I'm afraid I can't tell you much, it's classified, and we just need your help. That's all I can tell." Daniel answered.

Teal'c could feel something different from them, something that was wrong but so very right. They made him feel troubled but also relieved. He had no idea why he was feeling this.

"Fine we'll come with you." Bakura answered for them all.

Japan

Kaiba Corp.

"Seto, there are some people to see you." Mokuba Kaiba muttered as he saw his older brother work on his newest project.

Seto raised his head from his project and nodded. "Let them in, tell them I don't have much time." He watched his little brother turn and walk away. He turned back to his project and cursed as it didn't go as he wanted. When the door opened and he heard footsteps he didn't look up. "Sit down, now what can I do for you?"

"Mister Kaiba, we need your help." The voice of a female had him startled and he looked up. When he noticed the duo wearing military uniforms he cursed and stood up. "No, I will not have my technology in the hands of a bunch of militaries. That is out of the question."

"Actually Mister Kaiba, that's not why we are here, though I must admit you are very advanced compared to anyone else. We need your help in a different matter, though it is classified."

Seto scoffed. "Miss?"

"Samantha Carter and this is Jack O'Neill."

"Miss Carter, if you go blabbing about magic or past lives I'll have you thrown out of my office. So I suggest you better tell me something good." Seto demanded hovering above her.

"Well we have found some technology, we can't figure out and since you are pretty much the most advanced guy here on the planet. We thought that maybe you would like to help us." Jack jumped in. What better way then to lure a smart technology freak, by offering him a new piece of technology to study. It always worked with Carter. He knew he was right as a strange light appeared in the eyes of Seto Kaiba.

"New technology, you say… what kind?" he asked.

"We don't know. Carter over here is the smartest one we have about new technology, but even she can't figure it out." He knew he insulted her and he made a silent memo to apologize to her for that remark.

Seto turned around and walked to his desk. "Mokuba, can you come in please."

His little brother walked in and he turned to him. "I'm going with them to America; you'll have control over Kaiba Corp. I'm pretty sure you know what you need to do." He kneeled before his little brother. "I'll call and mail you every once in a little while." He hugged his little brother quickly and stood up. "I'll pack my stuff and then we'll take my jet." He smirked at the eager expression on Carters face.

End Chapter 2