Disclaimer: I do not own Harry Potter, Naruto, or any character that I might (I haven't yet decided) bring in from any other book/television/anime/movie.

Summary: When Hayden Potter turns seven, she receives a letter from a school that teaches the lost Shinobi (Ninja) Arts. After Hayden accepts the offer in the hopes of finding somewhere that she can call home, she is brought into the hidden world of the Elemental Nations, the former countries now being allied and forming the academy. Hayden is made aware of her magical heritage on top of her ninja heritage, and Hogwarts will get a few interesting surprises when she reenters the magical world as a full-fledged ninja. Oh yeah, and did I forget to mention that her mother, Lily, was descended from the Uzumaki clan?

Warnings: female Harry, female Naruto, SasuNaru, SPOILERS, possible homosexual pairings or mentions of them later on, though not involving Hayden. Possible bashing later on, if so it will most likely be Dumbledore as well as Molly, Ronald, and Ginevra Weasley.

Enjoy!

In a world not out own, there was a place called the Elemental Nations. The five greatest countries were named after one of the following elements: Fire, Water, Earth, Wind, and Lightning. Shinobi, or ninja, were common in these countries, with a 'Hidden Village' in each of the main countries and some in the smaller ones.

Fire Country's was Konohagakure, or the Village Hidden in the Leaves, led by the Hokage, the Fire Shadow.

Wind Country had Sunagakure, the Village Hidden in the Sand, led by the Kazekage, the Wind Shadow.

Lightning Country had Kumogakure, the Village Hidden in the Clouds, led by the Raikage, the Lightning Shadow.

Water Country had Kirigakure, the Village Hidden in the Mist, ruled by the Mizukage, the Water Shadow.

The last of the main countries was Earth, with Iwagakure, the Village Hidden in the Rocks, which was led by the Tsuchikage, the Earth Shadow.

There were also smaller countries and Hidden Villages, such as Takigakure, Kusagakure, and Amegakure (the Villages Hidden in the Waterfall, the Grass, and the Rain respectively.)

The countries of the Elemental Nations have a long and bloody history, but hardly a century after the first Hidden Village was founded, they were brought together by a common threat, burying the hatches and forming the 'Allied Forces' in an attempt to defeat Uchiha Madara in the Fourth Shinobi War, though that is a story all of its own…

The Nations eventually succeeded in their goal, and after the fighting ended decided to keep the peace between their countries for as long as they could manage it. There were still those bitter from the events of the past, but as a whole the countries continued to be allied.

When their world fell to ruins shortly after the Fourth Shinobi War, they once again allied as they ventured into the unknown to find a new home for themselves.

Once settled in their new home, they realized that in order to keep their heritage intact in a world where ninjutsu and the other Shinobi Arts were lost, they would need to do something about it.

And so the Allied Force's Academy of the Shinobi Arts was founded by the Kage (Shadows) of each of the former Hidden Villages…

"GIRL!" a high-pitched voice screeched, immediately awakening the unfortunate seven year old within earshot of the noise.

Hayden yelped slightly, covering her ears before she was even fully conscious.

"Wake up and get ready for the day!" Petunia Dursley, owner of the horrid voice, screeched again.

"Yes, Aunt Petunia!" Hayden called back softly as the ringing in her ears slowly dissipated.

Hearing her aunt walk away from her cupboard, Hayden rubbed the sleep from her eyes before grabbing her clothes for the day and opening the cupboard door.

Peeking outside carefully to make sure that her Uncle Vernon and cousin, Dudley, weren't lying in wait for her, she scurried up the stairs and into the bathroom, quickly taking her allotted five minute shower.

After drying herself off and unsuccessfully trying to tame her waist-length black hair, the young girl threw on the white sundress that Petunia had given her.

Not that her aunt had bought it for her, but one of the ladies in the neighborhood had a daughter that had outgrown it recently and given it to Petunia so that Hayden could make use of it.

It was the only decent article of clothing she owned, the rest being castoffs from her morbidly obese cousin, making Hayden look even smaller than she actually was in comparison.

When she went downstairs she was handed a piece of toast (no butter or jam) and made to eat it before Petunia shoved her backpack (also a hand-me-down) into her arms and forced her out the door to walk to school. Dudley would be given a ride.

As the front door to Number Four Privet Drive was shut in her face, Hayden sighed.

'And so another day begins.' She thought with a sigh, not looking forward to the school day.

No one there liked her any better than those at Privet Drive, after all.

Eight hours later, Hayden was thrown into her cupboard.

The girl trembled in fear as she heard her uncle lock the door behind her, trying not to sob at the events of the day.

At first everything had been normal.

She was scolded by teachers, being accused of things that she hadn't done. She was ignored by the student population who had been scared away from her by Dudley. She spent lunch in the library, going without a lunch because her aunt hadn't seen fit to pack her one that day.

It was after school when the trouble had started.

Dudley and his gang had decided to stalk and beat her up after school for being a 'freak', which was the reasoning Dudley used to convince his friends (who had been taught not to hit girls) to help.

They had chased her into an alley behind the school with a dead end, and just when they had been about to get her…

She had ended up on the roof of the two-story building.

The Dursleys had most certainly not been pleased when they were called by the Fire Department as well as school officials about their niece's supposed trespassing.

No one listened when she insisted that she had no idea how she'd gotten up there.

In fact, it was that that shook the girl the most, even more than the punishment that she had been given and her uncle's shouting.

Had the wind lifted her up? It seemed impossible, but other impossible things had happened around her before. Perhaps she had flown, or teleported, like in the library book she liked to read?

Little did she know that this event had brought her to the attention of people who would be able to answer these questions, and even more that she hadn't thought to ask.

The next morning a letter appeared, addressed to one Hayden Potter at Number Four Privet Drive in Surrey, England.

Knowing that her relatives would take it from her if they saw it, the girl slipped it through the vent in the door of her cupboard so that she could read it in safety at a later time, before going to the dining room to give the Dursleys their own mail.

Her relatives never suspected a thing.

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Before anyone asks, Hayden will be the only student at the Academy from the Harry Potter series. A few of the other Hogwarts-affiliated people will be mentioned, but she won't meet them until it's time for her to reenter Wizarding Britain, which will probably be when she's 14 or so during the Tri-Wizard Tournament, though that's not set in stone.

The reason that little accident brought her to the attention of the Ninja Academy is because we never got an answer to how she did it so I used creative license—did she Apparate, or did she fly or levitate like Lily, Snape, and Voldemort were all known to do? In this story, she used a ninjutsu (ninja) technique to do it by utilizing her chakra, which put her on the Academy's radar because though everyone has chakra not everyone can use and mold it efficiently.