Summary: (YYH x HxH x HP) (Slight AU) With the rebirth of a dangerous enemy, the newest Reikai Tantei team has to infiltrate the wizardry community to prevent a prophecy from fulfilling. Due to their short numbers, the King of Reikai reassigns their predecessors to join them to ensure the balance of the world once again.

Warning: May (hopefully won't) contain slight OOC. Will contain spoilers for Hunter x Hunter up to Chapter 283 (may change), and the endings of Yu Yu Hakusho (manga) and Harry Potter (books). Slight AU for the Hunter x Hunter universe, as it is moulded with our world.

Disclaimer: I do not own Yu Yu Hakusho (© Yoshihiro Togashi), Hunter x Hunter (© Yoshihiro Togashi) or Harry Potter (© J.K. Rowling).

Chapter 1

'Wanting to save one of your comrades... is it that hard to understand?' ~ Gon

Within the rarest of moments where he could simply relax and enjoy tranquillity, Kurapika found himself sighing in relief when the last man left the room. He had just been in a meeting with one of his many "friendly" rivals who wished to request an alliance with the Nostrad Clan. Of course, Kurapika saw through the act and "politely" pointed out all the methods that they had used to try and sabotage his profits.

Let's say, they left rather gladly.

Hooking his finger into the handle of his teacup he took a slow sip of the warm liquid, despite the smouldering heat outside. He closed his brown(1) eyes in bliss, his ears picking up the low, soft notes of Nocturne in A minor echoing from the room a few doors down. It would seem like he wasn't the only one who was taking advantage of the newfound inactivity.

Then...

"Kurapika! There's trouble again!"

... Anyone heard of Murphy's Law?

Suppressing a groan, the blond turned slightly in his chair to face the large Victorian-style window behind him. In the near distance, a faint outline of a woman could be seen flying at an alarming speed on an oar towards the manor. Though he couldn't see her properly didn't mean he couldn't hear her rapid speech, which was giving him a slight headache. Almost reluctantly, Kurapika heaved himself off his comfortable seat (that made an imprint of him due to his long hours of work) and paced himself to the door to the left. Opening the door, he punched in a few chosen buttons on the number pad at the side of the cabinet and stepped back as the cabinet slid aside to reveal two glass cases.

Inside one of the cases, this one filled with liquid gel, contained eighteen eyeballs staring eerily ahead, their scarlet pupils only enhancing the effect. Kurapika stared fondly at them for a while before he moved onto the next glass case.

This one contained a body, a human body no less. Its anatomy was of a young female with long, abnormal blue hair and blank cerise eyes. Without delay, the transparent woman (who had entered the room a moment ago) leapt into the body and began to take possession of the soulless being. Kurapika set to work on opening the tightly sealed case and undoing the straps on the upright body. When all this was done, the now soul-filled body stepped out of the case and began to stretch her stiff limbs.

"Thanks for taking care of the shell, Kurapika," she said while stretching her arms forward until she heard a satisfying "crack". "I'm so glad that I don't have to keep thinking of a hiding spot for this body; some stray animal keeps finding it and damaging it!"

Kurapika closed the case, and with one last glance at the other case, he resealed the hidden compartment and closed the door. "It was nothing," he said before heading back to his seat, the woman following to stand beside him. "I assume they would be here soon?"

Before she could reply, a startled cry could be heard outside at the front gate of the manor. Glancing outside, the blond observed with mild amusement as he watched three figures heading towards the main door, leaving a security guard to eat their dust.

A second later, a beep be could heard ringing and only stopped when Kurapika pressed the button on the intercom. "Yes?"

"Ah, Kurapika-sama! Three intruders, a man and two teens –"

"I know," he cut in, startling the newly recruited security guard. "They're friends."

Just as he cut the connection loud, hurried footsteps could be heard in the corridor before the heavy oak door slammed opened. There at the doorway stood the three "intruders".

The oldest of the three was hunched over as he attempted to catch his breath, in contrast to the two younger boys who looked like their small trip was only one step worth. His attire, Kurapika noticed with mild amusement, had fewer layers than it usually did, with only his white button-down shirt, belt, navy-blue pants and leather shoes in the right places. His blazer had somehow found its sleeves tied around the man's neck, while the tie had somehow found its way to his back. The dark shades that usually resided on the bridge of his nose were mysteriously missing. The black suitcase, which was held by a tanned, sweating hand, was un-ceremonially dropped onto the forest-green carpet, the sudden descent creating a loud 'thud'.

When he finally caught his breath, the man casually wiped his hands against his pants, reclaimed his suitcase, straightened himself, and marched towards the two earlier occupants of the room in a rather comical expression of anger.

"Botan!" he exclaimed aggressively, slamming his fist on the desk and directing his gaze onto the woman. "What right do you have in telling the lecturer that I'm "in a top secret organisation who deals with criminals"? Couldn't you be more discreet, you know, perhaps saying something like "his mother is ill" or something?"

Botan frowned in confusion as one of the two teens snickered, the other blinked and Kurapika rolled his eyes expectantly. "But, Leorio," she said, "you are."

This prompted the amused teen, the younger of the two, to give a short laugh. "Ojii-san (old man), shouldn't you be more surprised that your lecturer has a high spiritual awareness? If he could communicate with Obaa-san (old woman), it would only be common sense that he knows about spirits anyways." He was rewarded with painful hit on the head from a materialised oar.

"We were lucky," piped up the other teen, his eyes mixed with amusement and concern at his best friend, "that Sutuwato-sensei had already known what we were. He immediately let us off the moment he sensed your rei-ki." The last note was directed at the woman of the group, who halted from her continual punishment to the older teenager, who took that opportunity to escape Botan's oar-length range.

"Putting all that aside," said Kurapika, drawing the attention of everyone, "I believe you had a reason as to why you went through all that trouble to get us all here."

Lighting up in realisation, Botan materialised a tape into her hand and began to wave it excitedly. "You have another mission!"

Leorio groaned in disbelief as the blond took out the remote to reveal the television set. "Just great," the man muttered sarcastically. "Another mission to delay my studies."

"Oh, stop whinging," said Botan as she placed the cassette into the VCR. "The world isn't going to wait for you to graduate."

The two youngest had made themselves comfortable on the couch on the opposite wall of the television, while the remaining man standing chose to sit on the carpet beside Botan, and Kurapika stayed content in remaining in his seat.

Immediately, the face of an eighteen-year-old man appeared on the screen, holding an expression of mild grim. His cerulean eyes had a hard expression and his jaw was slight clinched. Unfortunately for the four males, it was not a familiar face.

"Hello Reikai Tantei (Spirit Detectives), I hope your three months of peace were enough for you. Allow me to introduce myself. I am Enma-daioh, primary ruler of the Reikai and Koenma's father –"

"Doesn't he look a bit too young to be the ruler and a dad?" said Leorio in disbelief.

"Shh! He happens to be thousands of years older than you, you know!" screeched Botan, miffed at the man's lack of respect.

"- is unavailable, and the matter needs to be dealt with immediately. As you are aware, the wizardry world is currently at war with a man named Lord Voldemort, formerly known as Tom Marvolo Riddle." An image of Riddle's snake-like face appeared on the screen. "As the Reikai are forbidden to interfere with Ningenkai matters unless it involves our own, we have not put much thought into them.

"Recently, a wizard was 'spirited away' into the Makai. This, of course, is not an unusual situation in itself. However, the patrol that found him had been searching through his memories to erase his stay in the Makai, when the youkai found a peculiar memory involving a prophecy.

"As you should know, prophecies are created by the Reikai as an indirect way to warn humans of certain situations. However, as we haven't been paying attention to the actions of the living humans, wizards in particular, we didn't realise that the meaning of 'prophecy' in the Ningenkai had been changed in the few thousand years since we first introduced it. Also, as the wizards and witches are obviously superstitious, they take prophecies rather seriously.

"Due to this, this prophecy I mentioned is an interesting one. It involves the 'fate' of the person who's suppose to defeat 'the Dark Lord'. Now this person, a sixteen-year-old boy by the name of Potter Harry –" An image of a scrawny teenager appeared on the screen, his bright, emerald eyes framed with round-rimmed glasses and his untidy black hair used in a failed attempt to hide the single lightning-shaped scar in the middle of his forehead "– has unfortunately been bonded through soul to this 'Dark Lord', or Lord Voldemort, caused by a backfired killing spell. Because of this, if Potter is to defeat this Dark Lord, he must kill himself too.

"For your primary mission, I need you to delay the prophecy as much as possible to find a way to extract Lord Voldemort's soul fragment from Potter-san. I need you to infiltrate either the school that Potter goes to called 'Hogwarts', the wizardry government called the 'Ministry of Magic' where the shards of the shattered prophecy resides, or the lair of Lord Voldemort... if we can find it. If possible, I would prefer it if you were able to infiltrate all three locations at once to make information gathering faster and more easily.

"For the next week, I would like you to discuss on what you believe is the right course of action for this situation, and how you expect to achieve results. I'll be expecting to meet you all personally on Tuesday for further details. If there are questions you would like to ask, tell Botan and she would relay the question to me so that I can give you your answer during our appointment." There was a pause. "And just so you know, the mission is within the United Kingdom region."

And with that, there was silence in the room; the only sounds heard were coming from the rewinding tape and the faint notes of Moonlight in G major.

Kurapika couldn't help but frown as he began to replay specific parts of the video. Enma-daioh was obviously leaving out some bits, like how long it was expected the mission to be and what the secondary consequences were if the mission failed, if you ignored the fact that thousands of innocent lives were on the line. Also, the image of Lord Voldemort had sent a nagging feeling in his gut...

"Kurapika, what do you think?"

Snapping out of his thoughts, the blond blinked at the expected look in a pair of soft brown eyes, courtesy of one Freeces Gon. Swiping his eyes across the room, he found that the other three were also keen on hearing his opinion on the situation. Leaning forward slightly, he placed his elbows on the table and bridged his intertwined hands just under his eyes. Closing his eyes, he began to contemplate on what he knew so far.

Having only researched about the wizardry society briefly before, he mentally cursed at his limited knowledge. He knew that the majority of them resided within Europe and North America regions, a rare few within Africa, South America, Australia and India. He knew that those who lived within Asia preferred their own Eastern magic, consisting of shamanism, element manipulation, and the usage of Nen. He also knew that Western magic was mainly based around personal needs and convenience instead of combat and defence, though there were a few selected spells that Kurapika thought useful though not entirely reliable.

The word "Hogwarts" had appeared several times when he was researching about education within their society, one section specifically stated that it "is the most prestigious and well-known magic school in the world". He had read how the school was also the most well protected as it had many defence systems (obviously, no details were given). Its current headmaster was Albus Dumbledore, said to be "the strongest wizard in the world and the only one He-who-must-not-be-Named feared". Kurapika could tell that this "Dumbledore" was one of the main reasons as to why Voldemort didn't attempt to destroy the school, hence why it was considered to be "the most well protected".

The "Ministry of Magic" as Kurapika had found out recently, was going through a political election for the next Minister of Magic. As far as he could tell, the debate was rather one-sided and there was no doubt that the government would soon be under new and hopefully better (for them) leadership. The Ministry was also considered to be one of the most well protected areas, but with greedy politicians and their lack in security (if the fact that a bunch of school kids managed to break in was any indication), this fact was easily dismissed.

Voldemort's lair, on the other hand, was a whole different matter. The fact that the Reikai still couldn't find it meant that Voldemort was cunning and had enough experience with spirit energy to know how to avoid the Reikai cameras. The only lead would be that he was in the United Kingdom region, or Europe in general, as all his attacks happened there and it would be foolish if he was too far. From what he read, all Kurapika found out was that Voldemort was definitely well-rehearsed in what he did.

Kurapika frowned when he realised something; the UK was too large for a four-man team and with each destination so spread out, it would be hard to even attempt to infiltrate all three, especially with the limit in communication.

Killua could easily blend in with the Death Eaters (Voldemort's minions) with his reputation as the heir of the infamous Zaoldyeck family. The problem there was that Gon wouldn't want to be separated from Killua for too long and vice versa. They definitely trusted each other to watch each other's back, but Kurapika wasn't too sure of how Voldemort's ideals would affect Gon. According to Killua's recount, the incident where the Genei Ryodan (Phantom Troupe) had managed to capture the two had brought Gon into a rare state of angry at the Spiders' insensitivity. The young boy was only lucky that the coin landed on the right side(2).

Gon himself should go to the school, under the guise of a transfer student. If a background check was needed, it could easily be said that he was home trained by Wing and Biscuit. His ability to simplify complex knowledge would make it easy for Gon to acquire enough knowledge to enter the fifth year (if given to him in the right way) and his nature would make it easy to gather information from other students and staff members. Also, as an Enhancer, he had a better control over his nen, or "magic" as wizards would call it, so it would be easier for him to perform spells.

Leorio was a rather difficult case. He was too prideful to join the ranks of Voldemort, he wasn't especially good when it came to politics, and he was too old to enter Hogwarts as a student and didn't house any specialty in "Defence Against the Dark Arts" as it was the only staff position that seemed to be available. He would definitely be in his element if he were at St Mungo's (the main wizardry hospital) but there wouldn't be any use in doing so. His inexperience as a doctor, nonetheless a Healer, would also make it extremely hard for him to become a call-in doctor for the Ministry.

Kurapika would definitely be the one to infiltrate the Ministry of Magic; his influence as a business man could easily rival a politician. The only problem would be in which department he would get the most information. Unfortunately, the blond hadn't read anything about the Ministry's departments and their significance, so couldn't deduce as to which was his best option. His best bets would be departments involving economics or security, having had plenty of experience with both.

The problem now was: what about reinforcements? The team were soon to enter a territory in the midst of war, and despite their unique abilities and Kurapika's confidence that they would be able to pull off the job, it was the wizards he didn't trust. Items to eavesdrop, potions to change one's identity, a spell to erase one's memory and the difficult (but achievable) ability to read one's thoughts were definitely only a few of many that could reveal their true intentions. Senritsu would definitely be an advantage to avoid this, but she would be busy here in Japan, co-heading the company while Kurapika's away.

After what seemed like hours (when in reality it was three minutes), the twenty year old slowly opened his eyes and unlaced his fingers calmly. He subconsciously noticed that the piano had become silent, most likely due to the fact that his next meeting would be within the hour. Taking out a notepad, he began to write a few selected words before tear the page out and handing it to Botan.

"These," he said, indicating the note, "are a few books I would need you to collect from the main library in Reikai. I also need you to ask him if it is possible for him to recommend to us anyone experienced in this field of work to aid us, as we would almost definitely need more people."

The ferry girl nodded in understanding and began to head towards the exit (the window). "Sure, I'll be sure to tell him immediately." She opened the window, letting in a wave of hot wind, and mounted her oar. "Well, you know how to call me. See you later!" And she was gone.

After closing the window, Kurapika turned to his friends. "I have the general idea of what we could do, but we are lacking information to be certain."

Gon, his eyes bright and his lips curled into its trademark smile, stood up from his spot on the couch to stand in front of the desk. The other two followed his example and stood on either side of him, both housing reassuring smiles. "Don't worry about it, Kurapika," he said wistfully. "I'm sure whatever happens in this mission, it'll be alright in the end." This was agreed wholeheartedly by both Killua and Leorio.

The blond was touched by their support and couldn't help but smile back in return.

But even so, Kurapika couldn't help but notice that the feeling in his gut hadn't completely disappeared.

1. In the manga, Kurapika has brown eyes instead of blue/green eyes, as shown in the anime/OVAs.

2. This happened at the time Gon said the quote above (under the title). The Spiders had flipped a decision-making coin, one side to go along with Kurapika's deal and the other to kill them.

AN: Mou... I wanted to post this before the end of October, but then someone wanted to be my beta, so I've been waiting for her to send it back (she still hasn't). Anyways, I thought I may as well post it up now and just replace it if my beta made any changes. You've waited long enough.

I'm going to try and post monthly, as I do need to study. Suggestions for improve are warmly welcomed and critical analysis are appreciated. Oh, and thanks for all those who reviewed!