Disclaimer: I do not own Naruto, Harry Potter, or any of the characters from these universes. I am making no money off of this fanfiction.

A/N: Thank you to everyone who read and especially reviewed. I am amazed by the support I have received for this story. I enjoy writing for its own sake, but so many reviews are motivating as well.

Chapter 4: Compatibility - Part 1

Hagrid was still giving him strange looks as they left the bank, but he was either too courteous to ask, or just didn't know how to go about asking what exactly had happened that ended with Harry's goblin escort having a broken arm and nose. And as the man eventually opened his mouth, possibly to ask, Harry quickly interrupted him by asking in an excited voice, "So, where should we go first? Seems like there are all kinds of interesting shops."

"Err...right. Umm...I suppose yeh should be getting yer uniform first. Uhh, do yeh think yeh mind if I headed over ta the Leaky Cauldron fer a bit of a pick-me-up? I hate them Gringotts Carts. Yeh can just head into Madam Malkin's, an' she'll take care of yeh."

Harry still thought the idea of everyone wearing robes was a little strange, but he had spent decades wearing the Hokage's robes. Which he had hated, except for the hat. The hat had still been awesome even after forty years. Still, if he had to wear robes, he could grin and bear it. So he just looked up at the big man, "Oh, yeah. Sure. Take your time. If I finish up at the robes shop, I will head over to the book store and spend some time looking around there. I would like to do that anyway."

Not that he particularly enjoyed reading, but unfortunately, this was one of the times when it was necessary to do a little reading as soon as possible. There was a pretty wide range of things he could do with chakra, and he had no intention of just not using any of that just to avoid being accused of doing the impossible. But it would be very important to know what he could pass off as some weird rare power, and what people believed was just totally impossible. He at least wanted to be ready to memorize people's reactions with the Sharingan when he did casually do those 'impossible' things.

And the tiny part of him that most people would call their sense of caution, and he just called annoying, was telling him he should probably avoid breaking too many magical theories and laws. Still, it was probably a good idea for the time being. If nothing else, it would be easier to get away with pranks using these 'impossible' abilities if it wasn't known he could use them.

So with that thought restoring the smile to his face, he waved towards Hagrid and entered Madam Malkin's Robes for All Occasions.

It turned out that Madam Malkin was a short overweight woman who was wearing all purple robes. It made him question if coming to her for any sort of fashion advice was a good idea, but given what he had seen from other wizards in Diagon Alley so far, maybe something like this was required to fit in. Perhaps he could convince her that orange robes were the way to go. These might be the first people he could find that might actually agree with him that clothes should be made in such an awesome color. But eventually his fantasies were interrupted by the woman in front of him.

"Hogwarts, dear? We have had a lot of you in recently. In fact, we have one being measured right now." She motioned towards the pale boy with blond, almost white, hair. "Well, come this way and we will get you measured and ready quick." Harry just shrugged in response and followed her motioning to a stool next to the other kid.

As he glanced over at the other boy, mostly ignoring the woman who was measuring him, he asked, "So are you going to be a first year at Hogwarts too?"

The boy looked over at Harry for the first time as he responded, "Oh, yes. I'm looking forward to it. It's really not fair that they won't let us take brooms in our first year though. I was going to go look at racing brooms next. I think I will get my father to get me one and smuggle it in somehow."

"Yeah, I saw that they were not allowing us to bring brooms." Harry smiled over at the other boy as he responded. "It seemed a weird restriction. I guess flying around on brooms does seem like it might be a little dangerous, but they let us bring wands. Surely those are more dangerous if used incorrectly. At least you are only risking your own neck on a broom, rather than someone else's."

"Hey, yeah, that's a good point. There are loads of spells to hurt someone more than a fall from a broom, and they let us use those. If we already know how to fly a broom, we should be allowed. Not that a rule is going to stop me from bringing a broom," he stated arrogantly, but with a grin. "So, what position do you play in Quidditch?"

Harry frowned at this. So far in the conversation, he had been keeping up reasonably easily. He had seen the restriction on first years bringing brooms, and between the muggle legends of witches on brooms and this boy's comment about racing brooms, it was pretty easy to figure out that apparently magical people flew around on brooms, as ridiculous as that sounded. But he had never heard of anything called Quidditch, so he asked, "What is Quidditch? Is that a wizard's sport of some kind?"

The blond boy almost gasped, and after a moment a slightly disgusted expression came onto his face as he subtly shifted away from Harry. Or possibly the boy was constipated. "Oh...So you're a mudblood then?"

Harry almost laughed at the kid's expression, but managed to restrain himself. "I don't actually know what a mudblood is, but it sounds like some sort of insult."

The blond sneered and replied, "It's not an insult, it's just a description. You mudbloods don't know anything about magical society or our ancient traditions, trying to imitate muggles all the time. Father says that you are the reason Hogwarts and the rest of the Wizarding World are declining. That they shouldn't allow your kind into Hogwarts, and only allow in the old families."

Harry paused for a few seconds, still surprised by this sudden outburst. "Oh. I see. You are just an idiot. Well, carry on, I guess. Try to limit how much you pollute our air with your stupidity though. We would all appreciate it, I think."

The blond gaped at him, probably shocked at the first time in his life someone had spoken to him like that. Well, if they were going to be in the same classes, it probably wouldn't be the last.

"What? How dare you! Wait until my Father...Ouch!" He cut off as the woman measuring him, who had been glaring unnoticed by the blond since he started his rant pricked him with her needle.

In a too sweet voice, she said, "Oh. So sorry dear. Well, you are finished up. Why don't you head out."

The boy glared at the woman as well before once again putting his nose into the air as he arrogantly stomped out of the store. But just as the door was swinging shut behind him, Harry grinned and manipulated a little fire chakra to make his overly gelled hair burst into a three foot pillar of flame. He was also careful to manipulate the fire to keep all the heat away from the kid's scalp. In fact, it probably felt like a cool breeze was blowing through his hair, rather than it being consumed in an unnaturally large fire.

But of course the prank didn't end there. Before the formerly blond haired boy noticed his head was on fire, people nearby in the Alley started screaming and pointing, greatly confusing Harry's new favorite target. And then it got better. Half a dozen of the surrounding crowd, including what had to be the ponce's father, given the similarities of appearance, all unleashed torrents of water from their wands towards the literally flaming boy.

One of these streams of water probably would have been enough to knock him over, given that he had no warning or understanding of why people were suddenly attacking him with water. All half dozen together were enough to send him tumbling down the street a good dozen feet, before he finally ended up a thoroughly soaked mostly bald boy with heavily singed and ripped clothes.

Silence filled the street for a moment as the boy's father rushed forward to explain why he had been blasted by water, but this silence was broken by Harry's laughter. He had quickly moved to the entrance of the shop to get a better view while the tailor had been distracted by the fire, and now that it was over, he was incapable of keeping hold of his laughter any longer at the sight of the incredibly disheveled child.

Some of the surrounding crowd quickly turned their own chuckles into coughs as the bald child pointed at the loudly and openly laughing Harry and said, "You! You did this! My father is going to ruin you, you little mudblood!"

Most of the crowd remained silent, apparently torn between humor and disapproval at the slur, but Harry continued to laugh. However, he did manage to sputter out a few sentences between guffaws, "Me? You think I did this? But I'm just a mudblood who hadn't even gone to Hogwarts, nor gotten my wand. How could I have done this? I'm just laughing because you look...Does someone have a camera? Surely this needs to be immortalized..."

The bald boy continued to snarl mostly incoherently, but his father quickly grabbed him and murmured, "Come on Draco," quickly ushering him away from the crowd. Apparently he was less eager to see his son photographed at this moment than Harry was.

Harry kept laughing for another half a minute as he clutched the door frame to Madam Malkin's before he noticed the weird looks people were giving him. But he shrugged that off and headed back into the shop to finish getting measured. While that was happening, Malkin's assistant who had earlier been measuring Draco looked up at him a little hesitantly, then quietly said, "You need to be careful around people like him. Yeah, they might be jerks, but the pureblood families have a lot of power in this world. The Malfoys more than most. And things can be difficult enough for people like us in this world without purebloods actively trying to make things harder."

Harry glanced over at her and smiled as he replied. "Malfoy? That's the Draco kid's last name? And what do you mean 'people like us'?"

"Oh. Well, muggleborns."

Harry's eyes widened in realization. "Oh, that's what he meant when he was talking about mudbloods? People who have muggle parents? He was going on about people who didn't know about magical society, but never really defined what 'mudblood' referred to. Other than someone who doesn't know what Quidditch is, apparently. Eh...I think I will be fine though. It's not like I was going to actually get along with that git regardless of what first impressions were."

She shrugged uncomfortably at his dismissive attitude, but didn't say anything else as she finished the measuring.

A few minutes later, Harry found himself in the bookstore called Flourish and Blotts, where he approached the owner.

"Ah, here for your school books for Hogwarts? What year are you? I know each of the lists by heart, so no need to give specifics. Just electives if you are that far."

"Sure. I'm a first year. I was hoping you could help me with a couple other books too though." He followed the older man along as he collected each of the required textbooks for his first year. "Well, really I need two things. First, I was hoping that there was some sort of comprehensive introduction to the Wizarding World for muggleborns. I keep hearing references to stuff that is common knowledge to those born in this world that it seems almost expected I know as well, regardless of the fact I have known of magic for all of a week."

"Oh, sure. We have something like that. Of course you were given the standard pamphlet with your letter, like goes to all muggleborns, but you are right that it is hardly enough to do more than introduce the very basics. Here you are." Harry didn't comment on the reference to a pamphlet he had certainly not received, but just accepted the book as the shopkeeper handed over An Introduction to What You Need to Know About Magic for Muggleborns, by Muggleborns. "This one is the best. There are a couple similar things written by purebloods about Wizarding society and culture that might be good later, but I have been told that they apparently are not very good at first introducing the new concepts to muggleborns that we tend to just take for granted."

"Yeah, that looks good. Also, I was hoping you could point me in the right direction for a book detailing mythical magical abilities, or something like that."

This caused the bookstore owner to furrow his brow in confusion. "Well, that's a little more uncommon of a request, especially from a muggleborn first introduced to magic. Usually you want to know all about cool curses and what kind of interesting spells you will be taught at Hogwarts. But I think I do have something along those lines." He spent a minute looking down one of stacks in the back of the store before eventually smiling as he pulled out Lost Powers: Tales of the Legendary Magical Abilities Lost to our World, and handed it over to Harry.

Harry grinned at the man and replied, "This looks great. Thanks."

Hagrid had entered the bookstore not long after that, and had escorted him around to pick up the rest of his school supplies. It was pretty boring for the most part, though Harry made sure to remember that he needed to come back to the Apothecary and pick up some of the more useful potions he had seen in passing.

"Just yer wand left. Oh, an' I need tah get yeh a birthday present."

"Oh. That's nice of you. You don't have to do that though. I mean we just met, and you already got me the cake."

"Aww, well I know I don't have tah, but I was friends with yeh mum and dad, an' I wish I had been able tah get yeh presents every birthday. I know...How 'bout a pet? Yeh are allowed tah bring a toad, a cat, or an owl. An owl is best though. Useful, 'cause they can carry mail, an' they mostly look after themselves."

Harry was a little skeptical though. Afterall, he could teleport wherever he wanted, and so could wizards from what he had seen. What was the point of mail at all? "Well, I guess. An owl seems kind of boring though. Can't I get something interesting like a dragon or dire wolf? Do those actually exist?"

Hagrid got a giant smile at that comment, though the smile mostly faded away after a few moments. "Err...Well, I would love tah help yeh out in that, but dragons an' dire wolves are a little misunderstood by the Ministry. Dragons are illegal to own 'cept by licensed dragon reserves. An' dire wolves have been mostly hunted into extinction." At this point, Hagrid's eyes started to become a little watery and he started sniffing loudly. "I would love tah have one myself. 'Specially a dragon. It's always been a dream of mine. But a nice dire wolf pack would be great too."

"Huh...That's too bad. Well, if all the interesting pets are controlled by the Ministry, I suppose an owl would be nice too in case I need to send a letter for...well, for some reason, I guess."

They ended up settling on a pure white snowy owl which seemed to like him. It did take a while to name the thing something that she didn't immediately reject though. It was actually kind of strange to watch the bird turn its beak away at each name offered, before it eventually nodded at Hagrid's suggestion of Hedwig, who was apparently someone from magical history. Certainly it wasn't behavior Harry was used to from birds, not even those well trained to carry messages. He had at first thought that something magical was done to the owls to make them much more intelligent, but Hagrid denied this. According to him, there were a few spells cast on the birds to improve their ability to carry letters and find the correct recipient, but nothing that would make it act like this. Harry just shrugged and told Hedwig that he was very impressed with her intelligence.

He didn't want to spend a lot of time on it though, because it was time for him to get his wand, which he had been looking forward to. And so they entered a store with a sign which read Ollivanders: Makers of Fine Wands since 382 b.c. It probably said something about him that his immediate reaction to seeing the sign was to lay a genjutsu on it which changed it to read Ollivanders: Masturbators of Fine Wands since 382 b.c. as he walked in. He might have two centuries of experience, but if he was going to be forced to live as a kid again, he was at least going to enjoy the benefits of being allowed to be immature.

The inside of the shop was very dim and filled with tight rows of stacks of small, narrow boxes which he assumed held wands. The shop also held a creepy old man under some kind of invisibility magic. It was a pretty good spell too, and Harry might have missed him if it were not for the Sharingan's ability to see the magic of the spell. It seemed like this Ollivander liked scaring people, or possibly just deliberately being weird.

So when he dropped his invisibility spell and greeted him, Harry just grinned at the man and replied, "Hello Mr. Ollivander. I'm here to get my wand."

If Ollivander was surprised that he hadn't Harry hadn't jumped at his appearance like Hagrid did, he concealed it well, only giving a small twitch of one eyebrow. "Ah...yes, well I thought I would be seeing you soon, Mr. Potter. You have your mother's eyes. It seems only yesterday she was in here herself, buying her first wand. Ten and a quarter inches, swishy, made of willow. Nice wand for charm work. Your father, on the other hand, favored a mahogany wand. Eleven inches. Pliable. A little more power, and excellent for transfigurations. Though of course it is the wand that chooses the wizard."

By this point Ollivander had approached so close that his face was almost touching Harry's. Yes, his new sign out front would probably get him in trouble if he acted this way all the time. Maybe that would teach him to tone the creepiness way down.

"So...That's nice about my parents, but can I get my wand now?"

"Ah yes." The man gave another of his odd smiles with his glinting silver eyes as he pulled out a tape measure. "Which is your wand arm?"

"Well, I'm right handed, if that's what you mean."

After the apparently magical tape measure took a number of measurements from him, many of which couldn't possibly be relevant, Ollivander finally started to hand him wands and asked that he wave them, all of which seemed to produce none of the results the man was looking for. This went on for about half an hour before Ollivander finally muttered to himself, "Hmm...tricky customer, I see. Well, we may as well try it. Holly and phoenix feather, an odd combination, but it might just work for you. Eleven inches, nice and supple."

Harry shrugged and grabbed the wand from Ollivander, much like so many others attempts. It was at that point that things deviated sharply from how they had gone before. While he had been testing wands, he had asked Ollivander what exactly was supposed to happen. The man had claimed that the reaction differed a little with each wand and each customer, but that generally sparks or an aura, or sometimes music appeared. This was not what happened when Harry waved the holly and phoenix wand.

Instead, it exploded.

It didn't make something in front of it explode. Well, yes. It did that too, but more importantly to Harry is that the wand itself ignited into a fireball while in his hand, along with everything for about ten feet in front of the wand. Harry rapidly channeled chakra into the limb to reinforce it, preventing more than his skin and a bit of the muscle in his hand from being burned away. Luckily, though the fire had burned fairly hot, it had been very brief before the wand itself was consumed in flames, leaving only ashes to fall away from Harry's hand. A few of the smaller bones in his hand were also broken from the force of the explosion even with chakra reinforcement, but Harry wasn't too concerned about that. As long as none of his hand was actually blown off, he should regenerate fast enough to cover it up.

In fact, given the fact that Ollivander had leaped out of the way at the last moment, but still been caught in the edges of the flames, he wouldn't really need to make any distractions at all. Hagrid tried to rush over to ask if he was ok, but Harry just waved him away with his left hand and told him to go check on Ollivander. By the time Ollivander had been able to extinguish the smoldering of his robes and cast a few minor healing spells on his own burns, Harry was able to remove his once again whole right hand from where he had hidden it in his robes.

"So, I assume that wasn't normal? Uhh...Sorry about all your wands too." Harry pointed over one of the large stacks of wand boxes which had been more or less consumed in the explosion.

"Oh my. How interesting. No, not to worry, Mr. Potter. Hopefully I can salvage some of them, and if not...well, it wasn't your fault. And to be able to see such a thing is worthwhile of its own merit. I'm glad your hand is ok as well. Perhaps the magic released protected it from the damage somehow? Hmmm..."

Harry frowned at that, and waited for Ollivander to continue. However, the man had just trailed off and was now staring at him in an almost predatory fashion, so Harry uncomfortably asked, "Such a thing? What does that mean, exactly? I assume you didn't expect something like this?"

Ollivander chuckled almost gleefully. "Oh, no. Of course not. Why something like that hasn't happened for centuries. And even then, I doubt it was remotely to this extent."

Hagrid just looked between the two of them with a confused expression, but Harry was starting to get more annoyed than disturbed by Ollivander. "Something like what exactly? What made the wand explode like that?"

Ollivander was grinning wildly by this point. "Oh, you were much too powerful for the wand. You see, that wand did choose you, just as a wand is meant to. But in the moment that a wand chooses a wizard, it pulls upon the wizard's magic, which rushes into the wand. That's what creates the normal effects of sparks, an aura, or whatever else happens - pure undirected magic flowing through the wand. But a wand can only handle so much magic.

Destroying a wand because too much magic flowed through it is incredibly rare though. Mostly because frankly the vast majority of wizards don't have enough magic to make their wand smoke even if they were trying, much less something like the display you just did on accident. But also because generally by the time even the most powerful wizard is strong enough to manage something like that, they have learned the control not to. That an eleven year old is strong enough to accidentally release power that Dumbledore or the like would have difficulty releasing on purpose is simply extraordinary."

Harry snorted in amusement at that. He really shouldn't have been surprised. This sort of thing was exactly the type of thing he had struggled with for years in his childhood as Naruto before he had managed to get his chakra control to a reasonable level. He overloaded jutsu's before, now he was overloading wands. "Well, it's nice that this is so extraordinary and has caught your interest, but is there a way to fix it? The letter said I needed a wand for Hogwarts. In fact, it kind of seems like the most important part."

Ollivander did finally settle down from his previous euphoric state at that. "Ah, yes indeed. Well, while I have never had a customer with this particular problem before, the solution should be fairly simple. Just use a wand which has not chosen you. The only real difference between a wand which has chosen you and is highly compatible with you and one which has not is that the more compatible a wand is with its user, the more it magnifies their magic. Using one that is very incompatible will have the opposite effect - instead of magnifying the magic flowing through it, it will reduce the power from what you send into the wand. Ideally into an amount that does not overload the wand.

Just pick one you tried earlier and focus on the feeling you probably felt the moment before the wand...err...exploded. It might take a little while, but you need to push your magic down your arm and into the wand, rather than having it pull like it does when a wand chooses you. Ideally less magic than last time though."

Harry nodded and waited to make sure everyone was out of the line of fire this time before picking up a random wand which looked nice and pushing as little spiritual energy into it as he could manage. It wasn't that difficult. He didn't know how to actually craft magic into spells, but the feeling of its movement through him when the wand 'chose' him wasn't that different from chakra manipulation, so he could duplicate it fairly easily.

This time the fireball only extended about five feet in front of him, and Harry had been prepared for it by hardening the skin of his hand to near diamond levels with earth manipulation to prevent damage. So Harry was pretty pleased with his progress, though he expected Ollivander might be upset with the further damage to his little shop.

He was very wrong about that. If anything, Ollivander seemed more bizarrely excited than before. "Definitely a tricky customer, yes. The trickiest I have ever encountered in all my years. Try a few more. Let's see if we can get an even less compatible one. And try and focus on less magic as well."

And so Harry tried another half-dozen wands, all of which produced slight variations in the size of the explosion and flames, but all of which were definitely reduced to ash after Harry was finished with them. And with each destroyed wand, Ollivander's grin grew wider, until it was almost inhuman in size. Finally, he said, "Ok, that's enough. Clearly I will have to do something special for you. Come back tomorrow afternoon and I will have something that should work. It may well be my finest creation yet. I think that we can expect great things from you though. Great things indeed."

And at that Harry quickly headed back into the alley, eager to get away from the old man with the still-creepy grin who was for some reason beyond pleased that he had completely trashed the man's shop. Even using magic for assistance, it would take hours to put his shop back in order, and Harry had totally destroyed a good ten percent of Ollivander's entire stock. Anyone that pleased after something like that was someone Harry thought it was probably a good idea to avoid.

"Well, I guess it's time to get home Hagrid. We still need to have that cake you brought." He grinned brightly at the large man, who smiled more tentatively back at him.

A/N:

I started chapter four intending to cover everything I need to cover before September 1. But it was getting pretty long, so I ended here, and will cover the rest of the fun with Ollivander and a couple other things next chapter. It should be out more quickly than past chapters though, since it is already partially written.

Please review though! I don't care if it's just a short, "I liked it," a detailed breakdown of what you think I did wrong (and hopefully can improve on), or even just informing me of a grammar or spelling mistake, I would appreciate it. But please no flames. I don't mind criticism as long as it is constructive, but a simple, "This is the worst thing ever written," or "You made Harry too powerful. You suck" will be ignored.