A/N

So...I'm a fan of this idea, an old friend sent me a link after reading my stories. The pairing on the story wasnt to my taste though. He wrote one sentence, which was "let's see what you can do with these." So this story and the next upload will be in response to a request.

I'm not sure how popular it will be. Among all of my friends I was the only one who liked the FFxiii...but that's not gonna stop me.

I dont own Harry Potter or Final fantasy, sorry.

00000000000

A scream erupted from within Hogwarts, Neville had killed the last horcrux. The duel he and Voldemort were having cut off as he fell down clutching his chest.

A twenty year old Harry looked back with a smile on his face, it had taken three full years to destroy all his horcrux, the first was easy. Sirius's brother hid it in Grimauld place Salazars locket.

The second he, Ron and Hermione found in egypt, he had hidden it in the forgotten grave of Salazar himself this one was his family ring.

After that they were running low on food and the walking stomach that Ron was couldn't handle it, so he left. Not knowing how to destroy the horcrux they carried them with them. Unfortunately, this led to a lot of stress, stress that accumulated into a single night of intimacy.

After that he and Hermione found the next Horcrux in gringotts Helga Hufflepuffs cup, the goblins look on the way out told him that he would never have another account again. After that Harry had found the sword of Griffindor at the bottom of the lake, after he dispatched the three they had Ron showed up acting apologetic. He was gone within a few hours after seeing that they hadn't gotten any food. He pocketed the stone on the ring. Harry called Dobby after that and he kept them well fed, although he payed extra special attention to Hermione for some reason. He and Hermione had grown to hate Dumbledore's second chance policy by this point so they began to study darker spells, Hermione called them Grey mages, because she began to believe that magic wasn't inherently good or evil after studying some of the dark curses backgrounds.

The fourth Horcrux was given to fenrir Greyback. The lost Ring of Salazar Slytherin. Harry didn't want to deal with that whole mess so he sent out a fiendfyre and toasted the whole pack, as a bonus he learned of another way to destroy horcrux.

Then he had recieved a patronus from Dumbledore saying he found the sixth in Hogwarts, the first one he had ever found. Arriving at Hogwarts, all hell broke loose. Halfway through the battle Dumbledore revealed that he bad set Harry up to die from the moment his Parents died.

He had met his mother in the afterlife. She was pissed at him for willingly killing himself.

After that he came back and Neville dispatched the real last Horcrux. Turning he smirked at the now mortal dark lord, as if in tandem to spells shot out, both the same shade of green. Tom Riddle's eyes widened at his use of the killing curse, "so, the golden boy has finally learned huh?"

"That's right Tom. You and you bastard followers dont get a second chance, you'll never change." He pushed with all his might and the bolt of green struck the dark lord in the chest. Tom Riddle collapsed and began dispersing into ash, the Elder wand that he had stolen from Dumbledore flew into his hand. Silence reigned and a mad cackling sounded.

"Well done Harry. You've completed your focus." Trellwany stepped out of the crowd. "Now for you reward." A large flash erupted from Harry.

"What are you doing?!" Harry screamed.

"Do not worry. The Fal cie shall take control now." Her body began to shift into that of a strange disk with a face on it, "your kind ruled this world for far to long. Now that the youngest and strongest has taken out one of two who could stop us, we shall take over. Not even your foolish old headmaster can win. But dont worry Harry Potter, you shall be asleep through it all. You will not awaken again unless one of your blood has been claimed by a fal cie."

Hermione stepped up, "that's not fair! Harry doesn't have blood relatives since the Durlseys were killed!"

Trellwany smiled widely, "exactly." They all watched as Harry Potter was lifted into the air, Hermione grabbed his hand but he was yanked away and he took her bottomless bag. The next thing anyone knew, a crystal was were Harry Potter once was.

0000000000000

Lightning ran up to her sister who was laying on the ground, right next to a crystal, "Serah!"

As Hope, Vanille, Sazh, and Snow showed up the Crystal began glowing. The crystal seemed to turn to liquid and a boy of about twenty dropped out.

0000000000000

When Harry opened his eyes he heard shouting and bolted up, "oh! Are you alright? How long were you in the Crystal? I'm Hope, Hope Estheim." He held his hand out.

Harry looked into at the young boy and smiled at the blonde haired kid, "Harry. Harry Potter, what do you mean crystal?" he took his hand and stood up. "Where are we?"

"Oh, your awake." A faint voice called out. Harry whirled around and saw the pink headed girl smile, "I knew you'd awaken here, I saw it in my vision. Please, help them save cacoon, it's been humans home for a long time."

Harry sighed, "I must've been out of it for a long while."

His eyes widened when she glowed and formed into a crystal, "Serah!" The man in the trenchcoat shouted.

Harry's eyes wandered around, the man with an afro and a bird in it seemed to be emitting a fatherly feeling. Hope glared at the man in the trenchcoat and the girl was bouncing around, "my names Vanille!" She said with a smile. Harry smiled and his eyes wandered to the last person around, his breath caught.

She was the most beautiful girl he had ever seen, (that's saying something too. He had seen Fleur in a bathing suit.) She had the same rosy hair as Serah, only a little more untamed, but unlike his hair she used that fact to style it perfectly. The way she stood and dressed showed that she had experience in battle. Her blue eyes held a sorrow though. In the first act of accidental magic he had in years he recieved flashes, the death of her parents, raising her sister, abandoning her real name for a title. The deeply hidden loneliness. His hand flew to his head and everyone looked at him, even the guy on the ground after Lightning decked him.

"I'm fine. Just a headache." He waved them off.

Lightning huffed at the guy and whirled around. She approached the open doorway, everyone followed her. Entering into the room Trenchcoat knelt down, "Serah completed her focus, just let her go. I'll be your L'cie instead!."

Vanille caught a brief flash of the army girl look into Harry's eyes and step forward, drawing her blade.

Harry watched as the machine opened and a barrier formed behind them, blocking Hope and Vanille from escaping. Harry sighed and stepped up next to the two who were more his age, "I'm not much for physical combat, but where I come from I'm one of the strongest there is" He pulled the elder wand out and then the sword of Griffindor in his other hand, The four adults attacked the thing. However, no matter how much they hacked, the thing just repaired it's broken arms and continued attacking, so Harry built up his magic and threw a silent Bombarda maxima at the gem in the center.

The moment it connected everything went dark as he heard a bell going off and watched as the machine changed into a huge Laviathan, green tendrils shot out and Harry felt a burning on his arm, just above the sleeve of his muggle shirt, he felt his wizarding robes burn away and was left with the muggle clothes he wore underneath, thank God Hermione had talked him into buying new clothes in those three years, and that he had her bag. The last thing he saw was an entire lake crystalize and he collapsed into unconciousness.

yo, Jason. Let me know what you think.