A/N: I have accepted this writing challenge from TheBlackSeaReaper! This will be AU, obviously, and involve Harry ending up in the One Piece world during his second year where he then becomes Juraquille Mihawk. He will eventually go back to the wizarding world and save them all, but that won't be until much later. Anyway, this is my first attempt at a crossover story, but I hope that you'll all like it!

Disclaimer: IOU one witty comment on how I don't own One Piece or Harry Potter.

Chapter 1- It All Started in Transfiguration

Everything had been going normally for the wizarding world's savior, Harry Potter. He went to all of his classes, did half of his homework, got scolded by Hermione for only doing half of his homework, he practiced Quidditch, and hung out with Ron. Yep, everything was absolutely normal, until Transfiguration that is.

It was an extremely stormy day when it happened. The Golden trio bolted down the halls in a futile attempt to be on time for their next class. They had had to clean up after the mandrakes in double Herbology after Ron accidently broke one of the pots, leaving a crying plant and a pile of ceramic shards and dirt scattered across the floor, and were running late for Transfiguration.

With seconds to spare, they slipped through the open door and dove into the nearest seats. The rest of the class just glanced at them before looking back to the front, already used to their antics. McGonagall just frowned sternly at them before starting her lesson.

"Today class, we are going to briefly discuss some third and sixth year material as ordered by the Ministry. Now I believe you've all heard of animagi before?" Her eyes scanned the crowd of aspiring wizards to see if any of them didn't know what she was speaking about. "Now, just in case some of you don't know, can someone give me a brief definition on what an anamagi is?"

It was of no surprise to the class that Hermione's hand shot up instantly. "Yes Ms. Granger."

"An animagi, or animagus, is a person with the ability to turn into an animal at will. I believe that they can transform with or without a wand. They also need to be registered as an animagus by the ministry or they will be sentenced to Azkaban."

"Very good Granger, five points to Gryffindor for your very informative definition. Now normally we wouldn't even begin discussing animagi until your third year, but the ministry has ordered that I test you all for an animagus." McGonagall cleared her throat before continuing with her lesson, "An animagus is a learned ability and can only be accomplished through sheer will power and unwavering effort. Everyone has the ability to morph into an animal, but sadly, hardly any of you will be able to accomplish it. I have here," McGonagall motioned towards a row of vials on her desk that were filled with a turquoise liquid, "an animagi potion made by our very own potions master, Severus Snape. Each of you will take one, add exactly one drop of your own blood, and wait for your results. The potion should then evaporate into smoke that will take on the shape of your animagus form, should you ever learn to master it."

Hermione's hand shot up again, waving slightly in the air for attention.

"Yes, Ms. Granger?"

"Why does the ministry want us to find out our animagus forms? Surely they don't want us to begin learning them now."

"Ms. Granger poses a good question. Class, the ministry merely wants to know what form your animagus is so as to help prevent illegal transformations in the future. It would be foolish to attempt to transfigure yourselves before you've begun transfiguring other living creatures. Now if there aren't any more questions, please grab a vial and a needle and begin."

The entire class buzzed excitedly, eager to find out what their animagus would be. Several loudly exclaimed that theirs would be something amazing, like a lion or a dragon, while others, like Harry, stayed quietly curious. Everyone quickly swarmed to the front of the class to grab one of the vials and needles.

Harry, Ron, and Hermione went back to their seats quickly, each holding onto their required materials. "So, who wants to go first?" Ron questioned a little nervously. The group was silent for a moment before he spoke again, "Maybe 'Mione should do it."

Hermione huffed slightly, crossing her arms, before snapping at him, "Really Ronald, and you call yourself a Gryffindor." But she picked up her needle anyway, poking her finger and carefully allowing one drop of her blood fall into the potion. It sizzled slightly and turned purple before it turned into smoke and drifted out of the vial. The lavender smoke curled around itself for a few seconds before shifting into a discernable shape.

The Golden Trio watched it avidly, wondering what her animagus would be. Finally, the smoke had shaped itself into the shape of a dolphin, which was jumping around her head.

"Very good Granger," McGonagall said, "Dolphins are highly intelligent creatures."

After seeing hers, Ron and Harry eagerly grabbed their needles and poked their own fingers. Harry watched as his crimson life liquid dripped into the turquoise vial and changed the potion's color to a dark shade of purple, almost black before evaporating just like Hermione's had. A happy laugh from Ron caused Harry to look over at his animagus. Ron's was a playful German Sheppard, which was running around his head and barking playfully.

The moment of joy that was shared between the three friends, was then ruined by a certain silver haired Slytherin who had turned around to face them, "Of course Weasely would be a mutt. It only makes sense that a blood traitor would be nothing more than a filthy dog."

Ron was about to retort angrily, when he looked over Malfoy's head and began laughing. Harry and Hermione's heads snapped up to see what would cause their friend to laugh after being insulted before they too giggled uncontrollably.

Draco Malfoy's face contorted into one of confusion before he looked at his own smoky animal only to see a playful ferret. Immediately, Draco leapt up and tried to disperse his animagus with his hand, only for it to leap away and curl up on his head.

That was the funniest thing he had ever seen. Harry could hardly breath he was laughing so hard. His laughing would have continued for much longer if he hadn't heard his friends suddenly gasp. Worried, he switched his gaze towards them only to see them looking above his own head. Harry suddenly grew very nervous, wondering if his was worse than Draco's.

Ever so slowly his ethereal glowing green eyes slid upward. His throat began to tighten nervously and perspiration began to form under his hairline. Finally, his eyes met with the glorious figure of a hawk, which was perched in the air above his head. It looked absolutely regal with its soft, smoky plumage and wickedly curved beak and claws. All of the aforementioned was topped by the most amazing aspect of the blackish smoky apparition were the two golden glowing orbs that were its eyes. They gazed at Harry so intensely, it was as if they were looking into his soul and judging him.

He couldn't hear anything around him anymore; it was just his animagus and him. The magical moment between Harry and his animagus was broken when it suddenly disappeared. Harry didn't say anything, he just stared at the spot where it had been only moments before.

"Are you alright mate?" Ron asked softly.

Harry jolted out of his thoughts quickly, nodding to Ron, "Yah, I'm fine. I just didn't expect to see that."

"Yah, that was pretty impressive."

The bell that signaled the end of the class rang loudly. Everyone rushed out gushing about how amazing or awful their animagus forms were.

The rest of the day went by in a blur for Harry, with double Potions and Defense Against the Dark Arts before dinner in the Great Hall. By the end of the day he found himself almost collapsing from sleepiness and he went to bed right away.

After curling up into his red covers he closed his eyes, sleep claiming him almost instantly. He couldn't have known that when he woke up, he wouldn't be in Hogwarts anymore.

TBC

A/N: So here's the first chapter! Please tell me whether or not you like it. For me, the first chapter is always the hardest to write, but the others should be way easier. Enjoy the first installment of The Boy Who Became a Hawk and don't forget to R&R!