A/N I dont own Harry Potter or Stargate or any books or shows i might reference

A/N This story is AU. I will portray characters diiferently then they are in shows and books. One example is Janus from stargate atlantis will also be merlin instead of Moros. Thats why its AU.

A/N Any suggestions welcome. This is my first fic, let me know what you think or what you dont. Thanks

HUGE SHOUT OUT TO PHANTOM1 FOR HIS WORK AS A BETA, GREAT JOB!!

Harry, as he walked into the Construction section of the city was greeted with magnificent sight; a freshly completed ship, the Marauder. It looked perfect and he felt a sense of pride that his first ship was completed. As he walked towards it, Harry mentally connected with the ship and had the boarding ramp extend. From the side of the ship a door opened with a hiss and a walkway slowly extended, allowing Harry entrance.

Entering the ship, Harry was shocked at the brightness and the surprising openness of the ship. The halls were wide enough for three men to walk side by side at the same time. It felt as if the design was meant to give a sense of openness since the ship was designed for long missions. There were 5 main rooms: the bridge, living area, engineering room, armory, and a small detention area. The rest of the ship was filled with machinery to make the Marauder the powerful ship that she was. After his brief inspection Harry decided to head to the bridge; he wanted to take new his ship for a quick flight so that he could get a feel for the girl.

Sitting in the command chair, Harry got ready to depart. He retracted the boarding ramp and closed the door. As Harry engaged the inertial dampeners and the antigravity thrusters, the massive hanger doors began to open. After the doors were fully open, Harry began to slowly exit the construction dome and into the atmosphere of the shielded city. The view was breathtaking and Harry could fully appreciate the size and breathtaking beauty of his city for the first time. All the spires had their lights on which created an ambient glow throughout the city which made it stand out in the blackness of space like a tiny star. In a word, Harry was mesmerized.

Finally after several minutes of just looking at Camelot, Harry turned the ship around and exited the city right through the shield. So far, the Marauder handled brilliantly but he had yet to fully test the capabilities. As he was testing his ship, he was scanned by Babylon 5 and the two Earth Force Omega Destroyers. No one targeted him, but the scans were heavy and intense, for them anyways. Harry guessed that they are curious as to whose ship the Marauder belonged to and what its intentions were.

Harry decided to handle this ASAP before someone decided that he might be hostile and try to open fire on him. Harry opened a comm channel to Babylon 5 "Babylon control, this was Harry Potter of the City Ship Camelot, come in please."

After several seconds he got a response, "This was Babylon Control, what can we do for you Mr. Potter?"

Harry instantly recognized Sheridan's voice. "I'm testing out my new ship, the Marauder and wanted to let you know so you aren't startled by my maneuvers and won't think that I'm hostile."

"Thanks for the heads up and good luck. Babylon control out."

With that settled, Harry began to put the Marauder through its paces, beginning with its sublight drives and inertial dampeners. Harry engaged the sublight engines and the Marauder took off like a bullet. He didn't feel any of the acceleration so he continued to accelerate slowly till he reached about seventy five percent of maximum speed. Once he traveled at that speed for a few moments he mentally ordered the ship to stop. The Marauder came to a dead stop in only five seconds; Harry felt only the slightest bit of pressure as it did. He continued to do this test several times, always checking his system readouts, learning that the ship was operating normally.

The final test of this speed up and slow down method was to push his engines to full power, which with the ZPM was just under the speed of light, and ordered the ship to stop again. This time he felt a little bit more pressure but was surprised at how well the dampeners worked, even though he knew that they were designed flawlessly.

With that test done, Harry decided to test out the maneuverability of his ship. He did climbs and dives, twists and turns, all the while increasing and decreasing speed. During all this he felt none of the motions that he would have without the dampeners. For a ship the size of the Marauder, Harry was surprised at how nimble she was.

Next were the tests of the ship's hyperdrive. Once Harry powered up the hyperdrive, he opened a window and the Marauder was soon in blue and purple of hyperspace. Entering the window was seamless and smooth, which was good because Harry had learned from Camelot's computers that these were inductions of a properly calibrated and working hyperdrive. After traveling for an hour Harry decided that he had traveled far enough and dropped out of hyperspace. Exiting the hyperspace window was seamless as well which made him even happier. Since he had no idea of who might claim the territory he plotted a course to Babylon 5 and immediately returned to hyperspace.

Right as Harry entered hyperspace he received a message from Camelot. It had detected seven ships traveling through hyperspace heading directly for Babylon 5. They would arrive at Babylon 5 within one day.

Harry rolled his eyes and said one word "Fools."

Harry diverted all power to the hyperspace engines, pushing them to their maximum capacity and insuring that Harry would be back in Camelot in forty five minutes. Plenty of time to warn B5 and the other Earth Force ship captains. Gliding out of hyperspace outside of Babylon 5's sector as to not spook anyone there, Harry headed towards Camelot. Thirty minutes later Harry made it back to Babylon 5.

Still onboard the Marauder, Harry hailed Babylon 5 and the two destroyers, asking to speak to their respective captains on a secure channel. Five minutes the three captains later were on secured channels with Harry.

"Sorry to bother you, but I figured you would like to know this: Camelot had detected seven ships in hyperspace and they are headed for Babylon 5. They will be here in a little under twenty three hours."

The captain from the Alexander spoke first. "That's some technology you have in order to get those readings. What are you using to get these results and how accurate are they?"

"Just sensors and I'm certain about the results. The only problem was that I won't know the make of the vessels for another six hours. Until then it could be anything from transport ships to war ships but I ask you this: Why else would seven ships be headed to Babylon 5 from Earth's direction?" All the captains nodded their heads in agreement.

The captain of the Churchill spoke up next. "What we need to do is plan for their arrival. Does anyone know how we can last against seven ships?"

Sheridan looked Harry in the eye via the comm channel "What about you Mr. Potter, will you help us?"

Thinking for a moment Harry made a decision. "Here's what I think we should do. I'm requesting that one of the destroyer crews assist me in finishing testing out my new ship. After that the four of us will meet here in Camelot and come up with the best plan open to us. Is this acceptable?"

All the captains agreed. There was no harm in assisting Harry with testing his ship, besides they might learn something from it. Also everyone wanted to see the inside of the city so agreeing to that was no problem at all. The captain of the Churchill volunteered to assist in the tests. "So what do you need us to do?"

"I need to test my defensive and offensive capabilities. So if you would, join me fifty kilometers from B5 so we don't damage anything by accident." The Churchill clumsily began to make its way over to Harry who gracefully came to a stop facing the destroyer. Several minutes later the destroyer came to a stop about one kilometer in front of the Marauder.

The Churchill was trying to scan the Marauder and could barely penetrate the hull of the ship. The hull appeared to be made out of a single piece of an unknown alloy. What looked like three energy weapons could be located on the hull. The only other thing the Churchill could get out of its sensors was a power reading that was off the charts. How a little ship like that could easily be able to generate more power than them, more than twenty times it's size, was astounding. All of a sudden the power levels jumped again and what appeared to be an energy field surrounded the ship.

"Ok Churchill, defenses first. I need you to fire at my ship starting with your lowest powered weapons working all the way up till we get to the most powerful." Harry said via the comm link.

"This is the captain, are you positive you want us to fire at your vessel?"

"That is correct; I'm ready when you are."

Harry noticed a build up of energy from a couple of fixed weapon emplacements on the Churchill.

"Firing." was heard over the comm right before three pulses from an energy weapon impacted on the shields. There was only a dim quick flare from the shields as they dissipated the energy from the attack.

"Everything's fine over here, fire the next one whenever you're ready." Harry said.

Another build up of power followed by another message of "Firing." was heard before a red lance of energy left from a turreted weapon emplacement. This beam was stronger and longer but still had absolutely no effect on the Marauder. The only thing it did was make the shields flare from the sustained blast. Harry didn't even feel his ship shake from the impact.

If Harry's scans were correct, the destroyer only had two weapons left. One was a nuclear bomb, which he didn't want to test against, so that left their main gun.

"I'm ready for you to fire your main guns." Harry broadcasted to the Churchill. Harry noticed the most significant build up of power yet and received the firing message. A thick orange rope of energy rocketed towards the Marauder. This one had more of an effect on the shields. Where the energy met the shields it glowed brighter than before, but not to bright and only around the area of contact, but the ship still did not budge. Harry was pleased with the results.

Everyone watching these tests was shocked. It was a statement of power. What everyone had just witnessed had been thought to be impossible. The energy requirements alone would hamper even the most advanced species. Even the Vorlons didn't have shielding technology and they were thought of as the most advanced race.

Harry didn't hear anything from the Churchill, so he signaled them. "Come in Churchill do you read?"

"…um yeah we read you, we are just having a hard time believing what we just saw…So what do we need to do to help you test your weapons? We don't have shields so you can't fire at us."

Harry could hear the smile in the voice. "How about two of your Star Furies, unmanned of course, and I will build you two new ones to replace these ones. Deal?"

"Deal."

In the next two minutes two Star Furies were ejected from the Omega destroyer: One would be to test the bow plasma beam and one to test to the drone. Harry turned the intensity of his weapons down to thirty three percent power and opened fire on the first Star Fury. The blue plasma beam leapt out of the weapon's emplacement towards the target. When the beam hit the hull of the Star Fury, the hull was erased from existence along with everything else the beam touched.

Next came the drone test; Harry fired a single drone at the other Star Fury. A yellow streak could be seen arching and turning towards its target. Little did the observers know the drone was being controlled by Harry's mind. Finally vectoring towards its target, the drone phased itself out of normal space and plowed thru the hull and exploded from the inside out. To Harry, both of these tests were successes. To everyone else, they still couldn't believe the power that that young man wielded. It was like a bad science fiction story that some body wrote for fun.

Harry sent a final message to the Churchill captain. "Thank you for your assistance and please tell the other captains that we will meet in one hour. I'll provide transport. Also bring the specs for your Star Furies and we will I will began construction while you are there; Marauder out."

Harry decided that he put on a good enough show and decided to not let them know about his cloaking technology yet. His weapons were more than likely going to be used soon so he saw no reason to hide it. Harry returned to Camelot for a hot meal and a long shower.

Cleaned and fed, Harry was ready to sit down and plan. Five minutes before he was to pick up his guests, he found Sheridan using his scanners. He was with two other people so he beamed them all over to an observatory meeting room. He then beamed himself to right outside the meeting room. As he walked in, he got to see the awe on their faces. First it was the way they came over. None of them have ever been transported before; it was a strange experience for them.

Second was the beauty of the room and view it provided. The room was situated in one of the tallest spires of the city, providing the best view. All of the levels of this building above the main floor level of the city were made of an alloy that, when small amount of power was routed thru it, would allow the walls, floor, and ceiling to become transparent, giving everyone in the room an open view of the city and of space. Harry even went as far as to change the frequency of the shields so that his guests could see thru the shield as if it wasn't there so that nothing would interfere with the view. The shield weren't as strong against attack this way, but that was ok for now.

The center piece of the room was circular meeting table and the real time holographic representation of Babylon 5 and the surrounding space including all of the traffic outside the station. Above the galactic plane was also a holographic representation of real time hyperspace.

Seven silhouettes were visible traveling in hyperspace. The hyperspace hologram didn't radiate out as far and displayed about eighty percent of the distance the regular scan did. The captains very surprised at the detail of the hologram.

"I take it you like what you see. I figured this would be the perfect place to plan for the battle to come. Plus the view was just simply amazing." Harry said all of this while looking at the stars with relish.

After several more seconds of quiet observations, the captains came to the table and sat down with Harry to follow suit. "Now, let's get down to business shall we. How should we deal with these ships that are coming to put all of you under their control? Plus I'd be foolish to believe that they would leave Camelot and me alone as well. I'm willing to assist you counter this attack but I want to keep the casualties to a bare minimum."

With the two other captains looking at him to take the lead, Sheridan spoke up. "I agree that the Earth Alliance will have most likely heard of you and that capturing you will probably be a secondary objective. I also agree that killing should only be used as a last resort. I just don't know how to do that because the captions of those vessels won't stop without a fight, a fight we will give them if we must."

The captain from the Alexander was the next to speak. "Just so we're all clear on this, this isn't the first attack and won't be the last one perpetrated by the Clark administration either. We will be under a constant threat as long as he remains in office. We need to defend Babylon 5 and come up with a way to remove him from office." Everyone, including Harry could see the wisdom in the statement. Harry had enough experience with corrupt politicians that he had to agree.

"I have no problem in assisting you with any of this but I will not do it for you. This was your own mess and if I were to just do it for you it would change nothing. And you as a species would learn nothing from it besides on relying on others to solve your problems. I suggest we plan for the defense of Babylon 5 and use that time in between to think of several ideas on how to fix the problem as a whole. Here was what I was thinking…"

With the seven Earth Force ships due to arrive any minute, Harry was sitting inside of the Marauder in between the jump gate and Babylon 5. The plan was set and the players were ready. One thing that Harry knew just as well as anyone else was that plans hardly go as planned. That's why he was cloaked and no one knew he was there. His part of the plan, as far as everyone else knew, was for him to be on Camelot.

As the seven ships entered range of the jump gate in hyperspace, Star Furies began to launch from the ships. All this was visible on Camelot's sensors and was relayed to Harry who then relayed it to the three renegade Earth Force Captains. Also picked up on Camelot's powerful subspace scanners was what appeared to be a breeching pod. The launched Star Furies and the breeching pod along with four of the attacking vessels entered the vortex to normal space using the jump gate, leaving three other ships lingering in hyperspace where they assumed they were undetectable, ready to provide reinforcements if needed.

And that was the kicker of the plan. In order to be 100 percent effective all the ships would need to arrive together. But sometimes plans need to adapt and this was one of those situations. But first they had to deal with the first wave of attackers. Just as all of the ships cleared the vortex and headed directly for Babylon 5, Harry's plan was put into action. The Churchill fired the first shot from extreme range. A range considered useless to Earth Force standards.

This shot was a torpedo modified by Harry for this single use. It was able to travel faster, dodge better, and to have a bigger punch than any torpedo ever seen. As the torpedo neared its target it had to dodge incoming interceptor fire from the four ships. When it got in range it detonated in a bright blue flash of light. The attack didn't do any physical damage to any of the ships. However, what it did do was that it released an electromagnetic pulse so big that if Harry didn't shield Babylon 5 and the surrounding local ships by extending Camelot's shields around them all, everything in this sector would cease to operate.

Once all the attacking ships were disabled Harry sent instructions to Camelot for phase two to began. Suddenly all of the Star Furies and the breeching pod were empty; their pilots being beamed out via bright flashes of white light. This was Camelot transporting all the pilots and soldiers from Star Furies and breeching pod back to one of the Earth Alliance ships. Next Camelot beamed stunning grenades into every section of every ship, insuring that everyone on board was unconscious. Since no one could resist, Harry beamed commandos from the Churchill and the Alexander and security forces from B5 onto the loyalist Earth Alliance ships. From there they swept through the ships, disarming and securing everyone on board.

Just as they were about done, the three ships waiting in hyperspace entered through three different jump points in extreme close proximity to the captured ships. These new ships didn't expect to see the four capital ships that they sent in beforehand exploding because the energy generated via their own jump points. The four ships were supposed to move out of the way and commence their attack, leaving this area open. It was a disaster for the forces opposing President Clark. Thousands were dead; no one survived on board the captured ships. To those on Babylon 5, the Churchill, and the Alexander, it was reminiscent to the Minbari War when the Minbari planned and implemented precise jump point targeting to destroy Earth Force vessels without firing a shot.

Harry, having no knowledge of this certain attack was left horrified. He didn't foresee this chain of events. He had never thought of using jump points on the enemy. He just wished he could have found out some other way. Deciding to end this quickly without any more death, he took action. Decloaking, as he rapidly closed the gap between himself and the three remaining ships, and charged weapons to the lowest power setting, and began to target every single weapon that he knew of on the enemy ships. He did not want them dead; he just wanted them out of the fight. He spun to the right while firing his first shot to miss the first ships starboard weapons. During the spin to the right, Harry locked onto the first three energy turrets and fire. All three of the Marauder's plasma weapons burned away at the Earth Alliance ship. Going under it, Harry came up and then closed in on the next ship, all the while firing shots to the aft with pinpoint accuracy.

Harry decided to let the shields take the shots that are coming from the two untouched ships. With him remembering the second task from the Wizard Tournament, Harry started to fly the ship like he flew his broom. It was like he was born in the air. Flying like this, Harry took out all the remaining enemy weapons without getting hit.

Even though he won the battle, he had lost. It was his idea to pull that stunt with taking the ships. They lost a lot of good people this day and Harry felt that it was his fault they were dead. He felt he a debt to these people now…

Snapping out of this thought, Harry realized that captain Sheridan was talking to the officer in charge from the Loyalists Earth Alliance ships. The conversation was being broadcast so everyone who was able could listen in to what was being said. "…I repeat you are to power up your engines and leave Babylon 5 controlled space, this was your last warning!"

To emphasize his point, or in a brilliant moment of coincidence, four Sharlin Class Minbari ships jumped into normal space between Babylon 5 and the damaged, weaponless Earth Force ships. With this new development and Ambassador Delenn stating that Babylon 5 was under her protection, the loyalist ships turned tail and headed for the jump gate to make the trip back to Earth.

Still angry with himself for the failed plan that cost thousands of lives, Harry headed home to Camelot to reflect on this with a promise to learn from it so it wouldn't happen again.

Finally the Marauder was docked and Harry transported himself to his room so he could lie down. Sitting there thinking he realized that he still had a lot to learn. The repository of knowledge just gave Harry all the technical knowledge and the language of the Alterrans. What he needed was more experience so that he could use that and his massive technical prowess to come out of situations the victor and without the loss of life.

With a promise to never let a fiasco like this to happen again Harry fell into a fitful sleep.

Delenn just finished watching the recording of the battle that Commander Sheridan had given her. What she had seen astonished her. Mr. Potter's vessel and its capabilities were amazing. She had never seen a ship that powerful or graceful. And it had energy shields!! That one ship was able to strip three vessels of their weapons in less than five minutes without suffering any damage.

The beginning of the battle also astounded her. Mr. Potter's plan was a good one, a very good one actually. It was a plan to save lives but unfortunately it didn't end that way. The remaining three Earth Force ships jumped into normal space hoping to catch the Babylon 5 defenders flat footed. But what they got instead was the destruction and death of everything and everyone.

She just hoped that Mr. Potter didn't blame himself to much. They still needed his help and she had a proposition to make that if he accepted, would change the face of the coming war with the darkness that's approaching. With a last look out at the video screen, she turned back to her desk where the plans for the Whitestar sat.