Disclaimer: I don't own Harry Potter and/or Stargate SG-1 . They are property of their respected owners. This is done purely for fun and to see where I can take it.

Pairings: Harry P./Daphne G./Astoria G.

Summary: Both the Potter and Greengrass Families have two secrets. One, that both families have been friends for thousands of years but have hidden this for over 1400 years and two, that they both remember the truth of the origins of the wizarding world.

Timeline:

*Start of the Harry Potter books is in 1998.

*Stargate is in during Season 3 before the Seth episode

Chapter 9:

-Change of POV to Jack-

As Jack looked around a different gate room, he saw five people, two adults and three kids. The gate room was beautiful room with designs of crystal and geometric shapes. The two adults seemed to be pointing sticks at him, one of the kids was holding a fireball, and another was holding two lightning bolts. 'Those lightning bolts and that fireball would hurt…'

"Uh, sorry about dropping by unannounced like that. We though we dialed our homeworld, Earth. We must have made a mistake," calming stated Jack as his held up his hands releasing his hold on his weapon.

Jack saw that people pass a look between the various members of the people in the room. He looked back at his group and saw Daniel looking around at the room's design. Carter was staring at the obviously advance technology with a look of intense curiosity. Teal'C look at the fire and lightning that the kids were holding and with confusion at the sticks pointed at them.

-Return of POV-

"Uh, no. You are on Earth," replies Harry.

"No, this is not the gate room in the SGC," replies Jack in confusion.

Damien and Ayianna lowered their wands slightly. Damien replied, "No, this is Earth. Harry here, forgot to disconnect the Astria Porta from the network and since we have the Astria Imperium and are in a city ship, it overrode your Porta." The four newcomers looked confused.

The one with glasses asked, "Astria Porta? Astria Imperium? That seems similar to Latin."

Ayianna answered this time, "The Astria Porta is the proper name for what you just came through and the Astria Imperium is the device used to control it."

At this the leader of the group seems anger at this, "What are you talking about this is not either of the two gates on Earth? And how did it fall into civilian hands?"

A look of anger passed across Harry's face at this, "I have no clue what Portas you are talking about and I think you should watch your step since our kind built them. They are Alteran property not the US military." Astoria, who had been returning to the rest of the group, helped Harry calm down by giving him a hug.

A look a shock cross three of the four newcomers and the fourth raised an eyebrow in surprise. "What do you mean Alteran property? Who are the Alteran? Are they the gatebuilders," asked the one with the glasses as he gestures at the Porta.

"We are the Alteran. We built the 'gates' as you call the Astria Portas many millions of years ago. We are only starting to recover from the majority of our members Ascending 10,000 years ago to a high plane. Many of our kind have forgotten their origins," replied Harry in a much calmer manner as he let go of the lightning bolts as did Daphne. The four newcomers all this time had expressions of shock. "I guess we should introduce ourselves. I am Harry Potter. Here are Daphne Greengrass, Astoria Greengrass, Damien Greengrass, and Ayianna Greengrass."

The leader stepped forward and introduced himself, "I am Colonial Jack O'Neill, leader of SG-1."

The man with the glasses was next, "I am Daniel Jackson."

The woman scientist was next, "I am Captain Sam Carter."

The last was the huge black man with the gold symbol, "I am Teal'C."

Everyone nodded in acceptance. "Why don't you leave your weapons here? No one will mess with them. We can talk about this in the conference room. But first, Harry go disconnect the Porta from the network. We will make sure to reconnect it again for you to return home," stated Damien. Harry rushed to the command section of the room and tapped a few commands on the consoles and the Porta dimmed as the power was cut to it. SG-1 all lowered their weapons to the floor and followed the group to the conference room next to the command section of the room.

As they entered the conference room, Harry, Daphne, and Astoria took one side of the conference table with the Greengrass parents on each side of the group. The four members of SG-1 took the other side of the table.

Daniel was the first to start to talk, "Ok, what do you mean that you are the Gatebuilders? How come we have not found this gate before?"

Astoria answered, "First thing is first, we don't go by the name Gatebuilders but Alterans. You have not found this gate before since we only reconnected it by mistake. Harry forgot to disconnect it after we restarted the main systems." Harry blushed at the reminder his mistake.

Jack turned to the kids and asked, "Why are you kids seeming to run this meeting instead of your parents? You should leave this to the adults."

At this Harry facial expression turned furious and said, "I am the High Counselor of the Alteran race and the Supreme Commander of the Alteran fleets. I am Prince Potter –La Fay-Emrys-Slytherin. My betrothed and mates are Astoria here is Princess Greengrass-Melia-Gryffindor and Daphne is Princess Greengrass-Janus-Ravenclaw. They are also Counselor of the Alteran Council."

Shock passed across Jack, Daniel, and Sam's faces. Teal'c just raised an eye br. Jack's shock, quickly turned to anger and he spat out, "You are only a child. You should not be betrothed at such a young age." At this Harry and Daphne recreated the lightning bolts and fireballs and a furious expression passed across Damien's face. Ayianna placed a calming hand on Damien's arm and Astoria got up and hugged both Harry and Daphne to calm them down. After a minute of tension, Harry and Daphne calmed down enough to release their powers.

Ayianna started to explain to them, "First thing, first. You need to lose the stupid belief we are human. We are not. We are also not just Alteran but members of two sub-species of the Alteran race too, Veela and Siren. You probably have heard of them from mythology. Members of these sub-species were created in an attempt to cure a plague over 5 million years ago and while it failed, the members of the experiment keep the changes due to the unintended side-effects. Both races have a mate, who is as perfect as possible and could be called their soul mate. Harry has both Veela and Siren genetics. Daphne has Veela genetics and Astoria has Siren genetics. Harry is the first in known history to have two mates since he has both sub-species in equal quantities where normally only one of them will show. It is very uncommon for the traits of these sub-species to show at such a young age." At this Jack and Daniel, calmed down in understanding.

Damien took control from here and started to explain the state of the Alterans currently and Harry's past history.

"Wow, we never thought to look for the Ancients on Earth. To think we as a people forced the ones we have been looking for into hiding," mentioned Daniel with a bit a disconnected at the stunning news.

Jack and Teal'c faces showed their anger at Harry's history that had been revealed. "Those Dursley's should be in jail," spat Jack in anger.

"They have gotten away with it so far due to Dumbledore's manipulations," stated Ayianna in anger.

"Who is Dumbledore?" asked Sam.

"Albus Dumbledore is the Headmaster of Hogwarts, which is the premier Alteran school in Britain, and also is the Supreme Mugwump of the International Confederation of Wizards and Chief Warlock of the Wizengamot. The International Confederation of Wizards is the equivalent of your United Nations and as Supreme Mugwump he has a lot of international power. The position of Headmaster gives him a lot of power behind molding the population of Britain and the position of Chief Warlock gives him control over the passing of laws and trials. He is almost a dictator in Britain. While Harry and the girls have a lot of power, they will have to be careful of attempts to control them or kill them," answered Damien.

At this explanation, Jack, Daniel, and Sam nodded in understanding though they were still visibly annoyed. Teal'c just seemed to accept the answer. Jack and Daniel started at this point to explain the current situation of the galaxy. The five Alterans looked concerned at the situation Earth and the galaxy were in but knew that they could not really help that much due to their previous concerns.

"So I have a feeling that you will not be will to form a treaty or offer assistance with the SGC? Is there any way to trade for technology?" asked Jack.

"I am afraid that we cannot offer a treaty or any significant aid but we can try to help in case of any extremely important situations. We will give you a subspace communicator which can be used to contact us. We would like it not to be revealed that we are on Earth. While I am sure your commander is trustworthy like you, I doubt that can be said about all of your superiors. We might in the future be able to pass on some basic technology but we can pass on some basic science information. It would allow you to start to understand more of the technology you find," replied Harry. Daphne and Astoria nodded in agreement to Harry's response.

Daphne walked over to the console and started to request some basic sciences to be recorded on a crystal to give to SG-1.

At this offer Sam's face lit up in excitement and she clearly realized that while they are not giving any technology they were doing the best to help SGC by broadening their understanding of the technology they had. Jack looked a bit disappointed but happy that they got some aid and more than any of their allies ever gave them. At this the meeting broke up and everyone started to say good bye.

"Well we should get back before the General get any more concerned since we should have been back a couple hours ago," stated Jack as he started to get the team ready to leave.

The Greengrasses and Harry led SG-1 back to the Porta and Command room. Harry reconnected the Porta to the network and opened a wormhole to a planet that the SG-1 mentioned was a friendly planet. SG-1 head towards the wormhole and gave their thanks to them again.

As SG-1 stepped through, the Greengrasses and Harry turned to the command console. Harry disconnected the Porta from the network.

"Wow, it has definitely been an interesting day," stated a tired Astoria. Harry moved over to her looking concerned.

"I am fine, Harry. I am just worn out from all the excitement from today," Astoria said to Harry's concern.

"Well, I think we should head back to the apartment and get some sleep. We should head back to our manor tomorrow and move Harry in," stated a tired looking Ayianna.

-Change in POV-

As SG-1 stepped through the gate back to the SGC, General Hammond said, "If everyone is ok we should head to the briefing room for a debriefing."

"That would be a good idea since we just got to meet several of the Ancients," replied Jack.

End of Chapter 9

Author's Note: Please leave a review. They are helpful in developing the plot.