Prologue

Part 1

Vroom! Vroom!

It wasn't often that the younger brother of the Kaiba Corp managed to sort out some of his time to play. Apart from spending hours studying for school, and performing tasks for his brother, he usually didn't have the moments to fully enjoy himself. Besides, this wasn't even play, technically. Mokuba Kaiba was testing out a new gaming system that the company was testing. Here he was, sitting in his brightly colored room, with a formidable screen attached to a wall, depicting a racing track with a combination of vehicles.

If anyone got the wise thought that Kaiba Corp did nothing but tailor to the needs of M. Pegasus's card game, they weren't too far off track. Kaiba Corp specialized in that area, as well as other technological prowess. It also served as an icon to show how progress was moving faster than some could anticipate. And because of that they were subject to a few unkind articles in the papers every week.

"Seto Kaiba may be a genius in the ways of marketing and engineering programming, but he is still but a child. And would you trust your children with your money/future?" – The Tokyo Messenger

That was perhaps one of the more thoughtful ones. Mokuba read worse. Seto didn't read them at all. In all honesty he could care less what the public thought of him in their living rooms, he wasn't running for president. He was running a company, and if they bought his merchandise and amused themselves with their programs, then he was happy. Money flow was what interested him above all else.

Mokuba had to disagree though. He wanted his big brother to be thought of well. At least the Domino papers wrote more kindly of the CEO, praising him every now and again. After all, it wasn't a big city, and to have such a well known company located in it, didn't just bring in fame. The more people came looking for jobs, the more the city ended up expanding. Mokuba knew that his big brother didn't care about issues such as that, he only wanted to see his company inflate larger and larger. Sooner or later it would be known around the world. Not just there in Japan, and a few hopefuls in America.

The duel stadiums were designed by Pegasus, so it would be around in America, but Seto's disks have yet to have been shipped. Battle city was a big enough impact in Japan that some of foreign buyers got interested. The calculative CEO wouldn't have offered. He wanted others to beg and bargain with him. That way he could push his sales up and sell his products at the highest price imaginable.

Mokuba pressed on the virtual gas pedal and forced the holographic wheel to rotate freely. He should tell Seto to make it a little more realistic. After all, a wheel didn't spin this easily unless you were in one of those playgrounds. Mokuba was sure that he'd prefer him say it to his face than an employee. Or even worse, a customer.

There was a sound outside of the game; sharp and urgent, Mokuba paused the game and climbed out from the egg like chair. Took off the headset and put it gently on the chair's red cushioning. Walking slowly towards the window that was half opened he looked out. There wasn't anything new. Mokuba managed to get a window that faced out into the garden. Other than the hedges and clean cut grass, there wasn't anything else decorating the view. Except a two peculiar cloaked figures. Mokuba pushed himself on the ledge and squinted his large eyes. They weren't guards; that was obvious. You couldn't run in those clothes no matter if you were a champion jumper, or running from the devil himself.

Curiosity being his cardinal sin, Mokuba jumped onto the lawn. (From the first floor) and sprinted behind a hedge closer to the two figures. Alright, carelessness was his next cardinal sin. Well, his brother would label it as such. Pressing himself against the wooly vines he listened in on the conversation.

"I can't believe that there's another hearing. I was just beginning to enjoy myself. "

"It's Fudge, what's to expect?"

The young boy realized that the two figures were speaking in English, so he instantly switched his mindset. Before he could recognize the words, but not register them in the slightest. He'd have to thank Seto for teaching him English. Even though when he spoke it, it was more or less broken. Mokuba had to admit, he had not been a faithful student. Not that he ever was.

"Yes, but it's just a misuse of wizarding books. You usually don't even need us. We're high marshal judges. We don't deal with bankrupt wizards. We deal with killers. Not children." Mokuba noted that this was a woman's voice. Sharp and almost predatory. She sounded like the type his brother seemed to make friends with the fastest. Or praise the most. In Seto's case that was a collection of two or three words.

"It's Fudge." The other repeated. This one however was deeper, and lower by an octave and some. So Mokuba was left to determine that this one was male. He turned around, to attempt to see through the greenery and observe the two people. The adrenaline rush was more than fierce at this point.

"Arthur asked me to visit these muggles. He wanted to know what kind of technology they even have. There were a few rumors you understand."

"Rumors?" Asked the male voice with certain caution.

"Yes, Arthur showed me a memory of one of the wizards that visited Japan; it had the images of the monsters. But as it turned out to be it was simply muggle engineering." She was going to add more, but the other interrupted her.

"You mean muggles have created monsters?"

"No you fool." She hissed back in a slightly playful tone. "They created images. It's similar to some of the illusion charms." Mokuba paused. Was she talking in code? Charms? But then again, she did say wizard before. Of course he assumed that it was a code name or maybe a type of offense? He stayed. But he finally managed to catch a glimpse of the woman.

She had a sharp nose and forehead, and eyes that could be resembled to spears. For they were just as sharp in their luster as the form of her nose and face. The man on the other hand was more on the humpty dumpty side. He was more round than tall. Not that Mokuba was judging. Appearance had nothing to do with power. Well, that wasn't true with his brother. He was a giant of a man. And with height came great responsibility. (1) Mokuba restrained laughter that threatened to surface at the thought. And he was immediately pulled back into the secret conversation.

"Do you think Seto Kaiba has any magic?"

"No. He's a pure bred and raised muggle. If he even had any magic whatsoever, he would have been recruited to that school in Hong Kong."

"Why not the one here?"

"Were you sleeping in history of magic? It was destroyed some four centuries ago by muggles. It wasn't clean either. People thought they were demons and didn't just attempt to burn them, they destroyed them completely. That's why the witch hunt back in the UK was known as one of the more … kinder hunts."

Mokuba raised an eyebrow. Magic? His brother was a what now? Fury started to build in his chest. It sounded like they demoted the person who he wasn't afraid to label as his pride and joy. Hong Kong? School? He decided to focus more.

"But to create this kind of technology, he has to have some sort of power."

"Maybe his brain is enough. Not that you'd understand." The woman teased. Mokuba grinned. Yes, that was the only explanation. They were crazies. No wonder they talked like they were disillusioned. But, a deep part of Mokuba wanted to fall for what they were saying. Magic, was something he always wished for. Not just because it could literally solve most of your problems, but it was so cool!

"Come on, we need to go to the portkey. Or else we'll end up being the butt of a joke for a very long time."

And with that they started to move out, Mokuba reached for his watch and pressed the button for security. He thought he was just doing his civil duty by getting these weirdoes to a place where people could understand them, feeling no fear now; he walked out from behind the bushes, making himself well seen by the two. "I'd suggest you two stop where you are." Mokuba stated, in the best English he could muster. Pointing a finger for effect.

The pair stopped in surprise and looked at the short child who at first didn't look more threatening with a mop. "What do you want?" Asked the woman, trying to conceal her distress, and frankly was doing a rather good job of it. As far as acting skills can take you. "The guards are coming within seconds, you can't get away!" Mokuba proclaimed. Still trying to impose on the atmosphere just as his brother could.

And to say in the least, he was failing. "Did this boy hear us?" Barked the man, causing the woman to flinch. "Shouldn't have." She replied with an equally loud voice. Mokuba caught the woman reaching into her robe, alert he dashed at her, grabbing her by the hand, just in time for a loud crack to echo in the air. And immediately his head started to spin and toil. It continued for some time, forcing the younger Kaiba to want to hurl. Suddenly it stopped and he immediately reached for the ground. Mokuba's head felt as though it had been taken out and dried out on a hanger. The young boy couldn't control his stomach's actions and ended up spilling the contents out right on the shoes of the woman who had been glaring at the back of his head with little mercy.

"What did you do Gloria? Do you want the expose us?" The man no longer keeping his distance, sized up on her and grabbed her by the shoulder. "Do you want the minister to throw us in Azkaban? He's not in his right mind! He'll immediately suspect something, even though it's nothing!" However now his voice was low. Since after all, they were surrounded by passers-by. They both looked mighty flustered. Mokuba groggily lifted his head and looked up. They were trying to look inconspicuous, and with the people that were walking around them, they really did look unthreatening.

"Where are we?" The dark haired boy demanded meekly. Weak from travel.

"London."

Part 2

Things weren't going well today. Well, today of all days. One of his buyers overseas was being disagreeable. Kaiba wasn't well adjusted to the attitude of people who didn't know of him. True he had yet to establish global glory, but he did have a reputation of one of the most cut throat collectors. It wasn't any mystery (except to the police) how he managed to acquire the only four (one of which he destroyed) blue-eyes white dragons in the world. Driving others to suicide and making a few underground friends were just what his foster father had been able to teach him. Burying his head within his work he had been able to understand more clearly what the buyer was stating. Seto Kaiba had known this contact for approximately two years now, give or take.

Dear Draco,

I must thank you for the items you have sold to me in the past time. However my need for your services is no longer required. With this I have to say that this is the last time I'll write.

Riddle

First time Kaiba saw the signature he had thought that it was a joke or a pseudonym. After all it seemed just as fetching that when he responded back he had used one himself. Since it was written in English he had browsed through a few possibilities before choosing Draco. After all, it made sense that he would pride himself in that he had collected the godly cards. The only other odd thing at the time was that it was hand written. Snail mail was even more outdated than walking. Kaiba stretched his long arms. He decided to humor the man in sending him letters through snail mail also.

Now the payment that the buyer gave him was ridiculous. It looked nothing like yen, or even pounds. Although some things he commissioned him to create proved to be a challenge. It wasn't gaming that interested the buyer, but hardcore technology. Some that Kaiba could only compare to the Death T part of Kaiba land. The one he specifically created for Yugi and his stupid lackeys to get through.

Just because he committed himself in making KaibaCorp to being a gaming industry didn't mean that he couldn't have silent side projects. Besides he found a bank that could change the currency into Yen. And from the payment he received, it was worthwhile to continue on it.

And now it seemed that the friendly flow of cash was going to be stopped. Which actually did put a damper on Kaiba's parade. The money he received managed to boost some of his company's name. Oh well, everyone carried on, he was no different.

"Attempt 104. Computer turn on sequence."

The computer started to whir mechanically. He was trying to perfect the quality of the holograms. Everyone made graphic improvements, and after what would seem an eternity in the progress time line, he got on the band wagon. So far, no luck. He couldn't produce anything close to what he had experienced in Battle City. The clash of the titan like gods was something he had never seen before. Usually monsters didn't fight back. Maybe he could change the programming to allow a few seconds before the monsters were destroyed? And fit in the fight back in that. As an added bonus to the improvements. He shut it off. Holograms were difficult to update.

Harder to fool around with. But after the years, he could safely say, he was an expert in the matter.

The phone on the wall rang. Seto had half a mind that told him to ignore it. This was his personal lab. No one called unless it was Mokuba or the delivery attendant. Mokuba was above ground, testing out a game. And he didn't call for food.

But he was running on automatic and picked up the handle.

"What is it?"

There was silence. He hung up. "This is ridiculous." Kaiba scoffed. He didn't even have a sporting chance. For when he started to turn around to continue his work, he was hit full force in the chest. Petri…

Part 3

"Get up on your feet!" the witch, Gloria hissed. Mokuba managed to gather that both her and her companion had served in a high position, that's why instead of immediately turning him in, they were dragging him across god knows where. The sky was clouded and gave off a deep and depressed feel, as did the city. The buildings seemed to loom over him, making the atmosphere seem like something out of the Matrix.

The dark haired boy managed to recover from his lapse and followed the two who were dragging him around. Mokuba also learned the second wizards name. Seth Nancy Greenwood. Even if Seto said to never judge people by their names, Mokuba couldn't help resist being amused by this amusing fact. Mokuba was immature, but learned from the best, and made it a goal to become like his big brother.

Minus the attitude and rather callous exterior.

"Where are we going?"

The answer never came. "Gloria?" Asked Seth, his amber eyes looking at the sharp nosed woman with impatience.

"Yes?" Sarcasm. It practically seethed out from her every pore.

"Can you stay here for a moment, I gotta get myself a newspaper." Gloria gave him the kind of glare that would keep anyone in their place. Mokuba felt himself cringe. The fair-haired woman's grip on Mokuba tightened. "You want to get a newspaper? Or do you want to be in one? I can just see the title now! M.O.M. JUDGES BETRAYED MAGIC." Seth's face turned a shade paler. The guilt trip had just begun. "MUGGLE LET LOOSE! Do you want something like that to grace the titles of the prophet? We need to get this muggle's memory erased, and then we need to get him back home. Understand?"

"Crystal mam. But … Something big happened."

"What happened?" Mokuba piped up, hoping that in the thrill of the argument they'd spill on something. Mokuba hit the ball out of the park on that one.

"You-Know-Who has returned." Gloria's eyes rounded, while her pupils seemed to shrink. Giving her an eerie owlish expression. "And you know this how?" Seth looked at her blankly. He clearly just read the reports and believed them. The witch shook her head and continued walking, dragging the two of them alone.

By this point Mokuba panicked. He didn't want his memory erased. He liked his memories to be just as he left them. They could take out the wrong things. And if they could do that… they could really—

Mokuba did what he knew best. He broke free from her grip and squeezed through the crowd. Running as fast as his feet could carry him. With this crowd it would be hard to track him down. Pushing and shoving past the current of people, he ran forward. But where was he running to, he hadn't the faintest clue.

When he finally stopped running to catch a breath, he took a moment to take in his current surroundings. Looking up he saw the faint lines of Leaky Cauldron scribed on iron. Peering inside Mokuba saw that there were enough people to disappear in. Just in case the two were still on his trail. He walked inside, hit with the smell of alcohol. The young boy slid to the side and hid underneath a table. A very obvious place to hide, but none the less, the only one available. He didn't have to wait for very long, the door swung open, letting Mokuba see a familiar pair of boots, tainted with green and the putrid smell of his last meal.

"And what can I do for you?" Someone voiced out. No doubt the bartender. Mokuba froze. The two approached the man in charge.

"We're looking for a young boy, about this tall."; they gestured. "Black rowdy hair. Hard to miss." The bartender seemed to shrug. "Officers, if I've seen such a person I wouldn't let them here. But mind me asking why you're looking for him?" The two didn't want to answer.

"He's my sister's kid. Lost him while helping him get a replacement wand."

Mokuba sighed. An obvious lie. So far he managed to put two and two together. Magic existed, and he posed some sort of threat. If he relied on Gloria's ranting, he'd say they felt that he'd expose them. Seto would. He wouldn't. Let them be. He didn't see much profit in proving that the magical world existed. Other can causing someone pain. Only his brother could make profit from this situation. For that he envied him.

"Well, if I see him, I'll report back to the ministry." The two left soon after. Mokuba was ready to crawl to his feet, when suddenly someone heavy made way for the table, pulling out the chair and sitting down. Shoving their large, damaged boots in his face. They were soon joined by another, this man's shoes and legs were mostly hidden by a long cloak. Mokuba didn't move.

As far as the younger Kaiba saw it, he had two option, run out and get caught, or sit tight for a couple of minutes and escape. Contact his brother, and get out of this place. Mokuba squeezed his eyes shut. He'd rather go with the latter.

"Hagrid, I need you do me a favor."

Might as well eavesdrop while he waited. After all, the more he understood about this place the better.

"I need you to help me stock up on some ingredients for potions."

Next came a scratchy voice which didn't like to keep to secretive discussions. If it even was a chat that should have remained private. "But Dumbledore sir, Snape usually—"

"In all honesty Hagrid, Snape won't be teaching potions next year at Hogwarts. I've arranged for somebody else."

"Who?"

"Slughorn."

"Horus? But he's retired, and last time I've seen him, he didn't look like he had any interest to, erm teach."

"That maybe true Hagrid, but you know that I can be persuasive." Next there came a booming laughter. Mokuba reeled an ear back. He didn't have to listen closely to that.

"That you do sir!"

AN: First crossover, and first story.

Don't be too judgmental! I haven't written in god knows how long.

Review to keep me going with the story? D:

But yeah, couple of things to say before I finish this document. I don't own YGO / HP. If I did, I wouldn't be writing here, I'd be making money off of it. So as you've guessed, this isn't the usual crossovers, that they get invited to Hogwarts. Odds are, Bakura, Yugi and Marik won't be in this story, until a few chapters in. Granted, I'll need to bring in one of them in eventually. Probably Yugi. And yes, I did bend the facts about Kaiba's coorperation to fit. Why? You'll see later.

(1) Spiderman quote.

(2) Yes I know Kaiba's company is more well known than that. It's fanfiction, I can bend the small details.