AN: I don't own Harry Potter or any other story for that matter, only having a bit of fun here!

Summary: Harry, after defeating Voldemort is forced to flee Britain, and his life becomes even more complicated as he get involved in the lives of several other story lines. Post HBP, ignores Harry being a horcrux and the camping trip with Ron and Hermoine.

Wrote: 2/28/12

The Ultimate Crossover

by Kassien

Chapter 1

Harry stood proudly in front of the dark lord Voldemort with the elder wand in his left hand and Gryffindor's sword in his right hoping this would be the end of his life long battle against his prophesized nemesis. The powerful enemies were currently surrounded by by almost a dozen of Voldemort's most capable Inner Circle Death Eaters, all watching transfixed as their lord hopefully took care of the last of his great enemies. For the last year and a half, Harry had proven himself to be a truly worthy and capable opponent, and none were taking their eyes off the eighteen year old wizard or underestimating him.

After Albus Dumbledore's death at the end of his sixth year at Hogwarts, Harry had valiantly and ruthlessly taken up the war against the dark. Armed with the Death Stick of the fable Deathly Hallows he received only the day before his old Headmaster had been murdered by Snape, he had systematically taken out a sizable portion of Voldemort's forces and supporters until only those small few present were all that remained of the once large and dark army. He had personally escaped death so often, that many were beginning to think him immortal, something he himself was even starting to believe with how close to death he had come and escaped from.

Though he wasn't sure if the cause was due to the Prophecy which seemed to state that only Voldemort could kill him and vice versa, or if it was possessing all three of the legendary Deathly Hallows. Either way, he was practically invincible against anyone other than Voldemort himself even if they gave him a good fight, and even the formidable dark lord had yet to truly overpower or defeat him in their few recent skirmishes. His skill and magical knowledge had indeed blossomed to almost unheard of levels for someone his age since joining the Hallows and then reaching his age of majority the previous year, although his new dedication to studying after seeing Dumbledore die had also helped greatly.

Since his seventeenth birthday, his magic had really taken off and improved, and with the extra help of the few remaining members of the Order of Phoenix, his experience too had grown. He had spent most of the time since training, fighting a war, and eliminating the rest of Voldemort's horcruxes which had taken a good bit of his time and growing skill. As he stood in front of Voldemort now, he was glad to know that the dark lord was now mortal, and that all six of his horcruxes had in fact been destroyed for good.

"You have been a thorn in my side for too long now Potter," came the annoying high pitched voice of the dark lord, as the two adversaries eyed each other in hatred as his followers continued to silently and nervously watch on.

"Tell me about it Tom," replied a somewhat confident Harry, having felt rather anxious lately for a real chance to take down Riddle and hoping to soon be rid of his arch-nemesis for good.

"I'm going to enjoy tearing your fucking tongue out of your filthy muggle loving mouth," sneered Voldemort angrily, as he raised his wand and wasted no more time and began their duel with his favorite green killing curse.

Harry waited until the last possible moment to side step out of the curse's path, and silently cheered to himself as he heard a gasp behind him moments before a body of one of his Death Eaters fell lifelessly to the ground. He then instantly began returning spells at Voldemort, not caring if he missed his target after hearing a pair of screams as two more Death Eaters fell to the ground in screaming bloody heaps from his overpowered dark cutting curses. The movements quickly became blurs as the two powerful wizards threw everything they had at one another with no regard for the idiots surrounding them who were too slow to avoid being hit more than either of them.

For twenty minutes the two battled fiercely, sending every spell in their arsenals at one another hoping for success, while avoiding the attacks of their opponents with incredible speed and agility. Harry used Gryffindor's sword to great affect by shielding and deflecting incoming spells, and was hoping to get close enough to use it to even more affect and finishing this fight. Already the intense fight was taking a real toll on the two wizard's who were both supporting several minor cuts and bruises, and had already extinguished the lives of all but four of Voldemort's remaining Death Eaters who still looked in worse shape than the two primary participants.

The entire area was soon becoming saturated with excess magically energy, making the air thick and oppressively heavy for all those present, but neither Harry nor Voldemort wanted to back down or let up their assault. The dark lord still had no idea that his horcruxes had all been destroyed and believed himself unstoppable and immortal, while Harry just wanted the war to end before any more people were killed or the wizarding world collapsed completely. The war had already had an absolutely devastating effect on all those in the magical world as every witch and wizard had lost somebody close to them by now and Harry just wanted to end it once and for all.

Over the next few minutes both combatants began turning up the casting speed and viciousness of their spells hoping to end the duel before they ran out of energy completely. Harry took a few painful hits during the exchange, but wouldn't relent his assault as he realized that Voldemort was quickly fading and running out of steam as he continued his intense casting. He slowly worked his way closer to his opponent, and despite a devastating bone crusher to his side, he managed to land a pair of powerful cutting curses that separated the dark lord from his wand arm and knew that the end was near.

He saw a terrified and wide eyed Voldemort reach into his robes with his only remaining usable arm looking for a portkey most likely to escape while he could. Harry didn't give him the chance to reach anything however, as he was now close enough to make one final lunge towards his opponent. He brought his sword around in a final powerful sweep that cleanly severed the ugly snake like head from the dark lord's shoulders causing his tall frame to collapse in a defeated and lifeless heap as his life blood erupted from his now exposed neck.

Almost instantly an intense magical backlash from the deceased body of the now former dark lord exploded outward throwing Harry onto his back painfully as the screams of the only four remaining Death Eaters rent through the night. Harry had only just been able to get back to his knees to see the four remaining Death Eaters clutching at the dark marks on their forearms in absolute agony, wondering about the bizarre magical backlash that made his very blood tingle. He was hurt and beyond exhausted when he heard one of the agonizing screams turn more feral and recognized it as belonging to Bellatrix, who gave him no time to react as her scream turned into a yell of Avada Kedavra and he couldn't even try to gather the energy to avoid the incoming green curse of death that crashed into his chest and threw him onto his back and into darkness.

Harry was startled awake with a pain filled gasp as he heard muffled voices just beyond his consciousness that put him on edge. The voices all stopped abruptly with his choked gasp, and he knew that he was still in the same spot he was in after finally killing Voldemort and getting hit by Bellatrix's Avada Kedavra. Several hours must have passed since then however, as he could just make out dawn's new light in the large clearing he had been confronted in by Voldemort and his remaining Death Eaters in the middle of the night.

"He's alive," came a shocked and scared whisper off to his left, and he had to blink several times before the scene around him slowly began to clear and he could make out the faces of the several people gathered around him.

A whole squad of aurors came into clarity as they all paused to watch him nervously, and he wondered how long they had been there. Taking in the rest of the scene, he came to realize that they must have only recently arrived since not a single thing from the night's battle had been moved or even marked by investigators. The severed hand of Voldemort still holding his yew wand was only a few feet from him, and the ground was torn up and filled with the dead bodies of seven Death Eaters and the dark lord all unmoved from what he last remembered of the fight that took place.

"What happened here Potter?" came a gruff and demanding voice that he didn't recognize as the red robed unknown wizard glared threateningly at the younger wizard who was still trying to clear his head and remember and understand everything that happened.

His mind and memories were swirling out of control within his head, and it felt like he was trying to assimilate foreign memories of Voldemort's life and struggling to regain a sense of clarity and sanity. It didn't help any to have the accusatory faces of the aurors demanding what happened while keeping their wands carefully trained on his still sitting form. Not having any of the few aurors he knew and was friendly with also wasn't very promising, but knew that he would have to tell them something so they would leave him alone.

"Voldemort and his Death Eaters finally caught up with me," answered Harry slowly ignoring the gasps and shrieks of fear at the dark lord's name, and employing his growing occlumency to settle the maelstrom of memories in his head, "we dueled ...I won. What else do you need?"

"How did you kill You-know-who and these Death Eaters?" came the same demanding and accusing voice.

"The Death eaters were hit by stray spells," answered Harry flatly, and not at all liking the tone of the accusing auror nor the malicious gleam in his eyes, "and I ended Voldemort's life with my sword."

The young wizard subconsciously squeezed both his hands to ensure that he was still holding his wand and sword as he felt other hungry glares in many of the auror's eyes directed at his weapons of war. He knew both items were priceless and highly sought after ancient and legendary relics even if most didn't know that his current wand was the infamous Death Stick. He had no intention of ever letting either item out of his possession, and glared back challengingly at the obnoxious auror that seemed to be in charge of his questioning and the surrounding aurors, not liking the feeling he got from the man at all.

"We'll need you to turn over your weapons so we can inspect them and bring you in for questioning as we run our investigation over what happened here," sneered the lead auror with an unhealthy gleam in his eyes as he approached the still sitting younger wizard thinking himself Harry's superior in every way.

"Good luck with that," replied the younger wizard who instantly sent out a wave of raw magic all around him knocking back the aurors around him before picturing his destination and disappearing on the very spot before any of them could react from being blown or pushed backwards away from him.

Harry quickly reoriented himself after arriving with a soft pop in the back courtyard of the Leaky Cauldron and right in front of the hidden doorway into Diagon Alley. Getting to his feet as fast as his protesting and tired body allowed, he sheathed his sword on his back and tapped the correct brick to open the archway before those aurors could track his apparition and catch up with him. With how the aurors had acted, and knowing that he did not in any way get along with the current Ministry under Rufus Scrimgeur, he knew it was only a matter of time until they came after him and he wanted to be well away from the Wizarding World by then.

Looking quickly at his torn and bloody cloak, he cast a repair and cleaning charm on it that would hold for quite a bit with the power of the elder wand, and pulled up his hood and set off down the alley. Heading straight for Gringotts bank, he was soon in front of a goblin teller asking to speak with his Family Account Manager Bloodrune. He was led to the familiar office he had only visited a few times since learning about the Potter and Black family vaults, and immediately got down to business with the surly old goblin that watched over his numerous accounts and had helped him immensely with retrieving the Hufflepuff Cup stored in the Lestrange vault a few months prior as the Head of Bellatrix's family.

He quickly explained to Bloodrune the outcome of Voldemort's defeat and the actions of the aurors and what he now expected from the Ministry that the goblin sadly confirmed as very likely. He then explained his desire to go muggle to make an escape from the corrupt magical government, and Bloodrune complied to his wishes instantly despite hating to see the wealth and resources he controlled to be leaving the bank. He then set three goblins to go and empty the Potter, Black, and Dumbledore vaults respectively into multi-compartment trunks while he discussed something else with the courteous young wizard hero.

Harry learned that by defeating Voldemort for good, as well as Antonin Dolohov, Alexander Jugson, Derrick Royle, and the Carrows twins in magical combat leaving no heirs to their estates, that he could claim them by right of conquest. He then led Harry and another pair of goblins to each of the respected five vaults where he had the young wizard claim them before tasking the goblins to empty their contents into another multi-compartment trunk to take with him. The only one they left open and functioning was Slytherin's vault which was also protected even from the Ministry trying to get access as it required a parceltongue password to get in and still continued to collect a good bit of money from the operation of Hogwarts.

Bloodrune also recommending turning all properties and businesses he had stakes in over to Slytherin House so it would still make him more money and be protected from the Ministry until they could liquidate his holdings if that was hid intention. Two hours after arriving at the bank, Harry had over a half dozen multi-compartment trunks filled with both wizarding and muggle money of practically every currency, enough books to double the size of the Hogwart's library, and more weapons and artifacts than he knew what to do with. All in all, according to Bloodrune, he was removing over a third of what Gringotts UK controlled in totality, but by leaving his assets now tied to the Slytherin line, his estate would still grow and they would still prosper. He also apologized for not being able to convert most of his wizarding money to muggle as they simply did not keep that much on hand, but told him of several other branches of Gringotts all over the world that could help him before they were interrupted by a goblin messenger coming to tell them the Ministry was present to confiscate Harry's accounts.

"Your foresight and thinking is impeccable Lord Potter," responded Bloodrune with a smug smirk that seemed almost gleeful at what he expected to happen next. "Here's a portkey that will get you out of London, your destination is Stonehenge ...good luck young warrior."

AN: Had this story written out on paper for quite some time but never got around to typing it out. I finally got fed up with the lack of really good crossover fics, as the only one I absolutely love is the Ascension of Ra. Wanted to try my own hand at a few different crossovers when I decided to just combine them all into one really kickass fic ...well I hope it will be at least. I currently have 20 chapters of this story written but still need to type and edit them a bit to fit my current trains of thought as my mind has found better ways and avenues in the past two years since I first wrote this. This crossover will cover Highlander, X-men, Vampire Diaries, Smallville, Buffy/Angel, and Twilight (and any others I think about and know enough about to even write). So please sit back and enjoy the story.