Disclaimer: This story is based on characters and situations created and owned by JK Rowling, various publishers including but not limited to Bloomsbury Books, Scholastic Books and Raincoast Books, and Warner Bros., Inc. No money is being made and no copyright or trademark infringement is intended.

Author's Note IMPORTANT, PLEASE READ: The first chapter is basically explaining everything - there is very little action here so it might be a little boring. I just thought that I would explain everything in one chapter so I won't have to do it later.

Vampires: The abilities are mostly based on Anne Rice's vampires. There are very few elements from Vampire: The Masquerade (social standings from Caitiff to Antediluvian, name of the first vampire and few abilities but nothing more). There are some of my own ideas here also.

And the last important things.

Italics are thoughts

Those are emphasis

And these are written

It was a long time since he had last seen this place. In fact, to him it seemed like millennia had passed. But it was only two years. And yet, the station, smell, sight of it sent shivers down his spine. It was really a wonder that he could still feel so many human feelings. Especially after what happened to him during last years of his life.

Maybe the reason of strangeness of this place was because of his heightened senses. Many things in him were quite unpredictable. After all he was the first wizard who managed to become a vampire and live. Usually vampires were muggles before they were born to darkness.

Harry Potter tried to close his mind from the avalanche of thoughts, which attacked him as he entered the platform 9 3/4. Vampiric mind reading abilities were a gift, but in crowded places like that it seemed to him that this was rather a curse. Thank God that he could just shut them out of his head.

Harry saw Aurors patrolling this place. He greeted them with saluting sign. After all, most of them knew that he was going to work undercover here. Not many places required guardianship so strict that it involved mages from Department of Mysteries.

Two years ago, during the summer between his 4th and 5th year Dumbledore told Harry that he should go and train to be a mage. It was probably the only possible way for him to be protected from Voldemort. The only known place in the world where mages could be trained was English Ministry of Magic, the Department of Mysteries. After Fudge was forced into vice-minister position, while Amos Diggory became Minister of Magic the thought of working for the Ministry became interesting. And so Harry was now working in the department.

Mages in reality were wizards who were trained to control their magic only with their minds. There were no wands, gestures or incantations needed for them to perform magic. Most of the mages were only able to master one or two schools of magic before they had to quit learning. The amount of so-called 'raw magical power', which accumulated in their bodies, was at that level of training so high that they would literally explode if they continued to train further.

Mage training went like this: First you learned very basics of every school of magic - few curses, counter-curses, wards, protection spells, some Dark Arts, some mind magic etc. Of course, everything solely with mind. After that you choose your favourite school(s) of magic and mastered it(them).

It was probably going to be the same with Harry if one thing didn't happen. He was changed into a vampire. He didn't know why, but he survived. You see, vampiric blood and magic that is in human beings always fight each other. It leads to true death in very short time. However it was different in Harry. His vampiric and magical powers connected to each other and were now dependent on each other. He suspected that it have to do something with the fact that he was a mage at the time of transformation. There was only one other possibility where person was 'vampire' and wizard at the same time - being a half-vampire.

Thanks to this connection number of things happened. First, Harry became immune to sunlight (although having that kind of resistance was possible thanks to a spell or a potion). Second, there was no limit to amount of raw magical power in his body. And lastly the third - because of the connection, if one of his strengths (wizard's or vampire's abilities) was strong then the second also became strong to 'equal' the other. That lead to interesting thing, once his magic became stronger so did his vampiric abilities - the only problem with that was that the effect was quite temporary.

Vampire could gain power in two ways - through age and blood. The first way - through age was quite simple. The older vampire got, the more powerful he became and the more abilities he possessed. And the second way - through blood. When a vampire willingly gave his blood to another (and was at least two times older that the one feeding) he also copied part of his powers into the feeding one. But the limit of the power 'copied' was half of total power of the one who was giving blood. Similar thing happened during transformation - human transformed into immortal could gain up to half of the powers of the one who gave the blood. Judging by the strength of his vampiric abilities Harry was probably bitten by a vampire that was around 2500 years old.

Vampires also had several social standings. They varied mostly because of age. However Harry was never interested in them simply because he would be probably considered a Caitiff - outcast of the society.

The vampiric abilities which Harry had were now were: incredibly heightened senses, strength, agility and other psychical stuff, ability to fly, incredible mind controlling, telepathic and mind reading abilities (Harry was practically able to do everything with exposed mind - delete, read or change memories, change feelings, read current thoughts, mind control others. Practically a mind was a computer for him. And like in computers, here you had to hack into mind sometimes, too). There were also abilities like: vampiric mind (it was a very strange thing - when you were a vampire most of the languages were understandable for you, you could read with speed which would astonish the fastest-reading humans in the world, you had a great memory and various other things like that). Muggle psychic abilities were greatly amplified thanks to transformation and were very easy to control.

There were few others abilities that Harry used, but rarely. When Harry became a vampire he had a good laugh at the supposed methods to kill vampires. In reality the only possible way to kill a vampire was through sunlight, fire or beheading. Of course, magical ways to kill also worked. Vampire could see himself in mirror without a problem (well, unless a wizard cursed them). Looking at crucifix, touching holy water or doing anything with any Christian symbols also didn't do anything - as much as some people would like to believe vampires weren't 'the ultimate evil'. But sometimes he wished to be able to change into mist. It would be such incredible ability. Shape shifting into animal would also be great. It would be like being animagus with a snap of fingers. He couldn't dismiss these particular abilities - after all vampires had endless life. He had power of thousand years old but he was sure that there were ones that were several thousands of years old. Vampires that ancient probably possessed many other abilities.

Harry was now using amplified version of Polyjuice potion. It was one of many potions, which were only known to those who worked at Department of Mysteries. It worked until you gave counter-potion. Thanks to it Harry could assume any human appearance at will (but the changes could only cover face or skin colour). Right now, he got rid of the famous scar. He kept his hair as it was - it wasn't an unusual colour. He only flattened it a little. But he simply had to change colour of his eyes - green was too unusual. It could arouse suspicion. So, instead of green he had now very dark brown, in fact they were so dark that if you looked at them in shadowy place you would think that they were black. Although he had rather thin face, his cheekbones were barely visible. His jaw was quite angular. He also had quite dark tan. All in all, he made sure that his appearance didn't look too unusual or didn't look too vampiric. He wasn't going to try to keep knowledge that he was vampire in secret but also, he didn't want to scare students with his looks. Besides even if people shunned away from him he could still read their minds for information. And the Polyjuice could only change his human parts of face, and fangs weren't one of those (but when retraced they were almost unnoticeable). It wouldn't really arouse suspicion - knowledge that wizards couldn't turn into vampires was one of those things, which was kept strictly on 'need-to-know' basis in the ministry.

The Ministry gave Hogwarts quite solid protection. Fifty Aurors were placed in the train to Hogwarts; another fifty would come to protect Hogwarts. There were thirty unspeakables in Hogwarts already, modifying and upgrading the wards around Hogwarts. They wouldn't stay later - their job was only to strengthen the defences. And finally five teams of mages were going to get there. Mages were always working either solo, with someone or in team of five people. That would mean 25 mages in the school. Five of them would work undercover. Four as students (one for each house) and one as DADA teacher. Harry was going to be student in the Gryffindor tower. His job was mainly to find out whether any student babbled in something dark.

The teacher's name was going to be Andrew Bolton. This guy was truly a genius when you thought about Dark Arts, defensive and offensive magic. But in result of his intelligence he treated everyone else like dirt. Harry could sense that he was a person who could be liked - he had a great deal of good emotions but he was so proud that he couldn't let the positive feelings out. Instead of letting them out he put on a mask with words 'cold-hearted bastard who treats everyone like sh*t". He was already old man, around his sixties, but still in excellent health. He was always ready to fight. He was a Dark Mage - one of the rarest in the ministry. A Dark Mage was a mage who specialised in Dark Arts. Harry couldn't imagine how this guy was going to teach everyone there. He was going to be worse than Snape was during his school days. Of course, he respected Severus because of his dangerous 'job', hard tasks he had to face and number of trails which happened in his life. But that didn't change the fact that he was a bastard to Harry.

Thank God that rest of Harry's team members were quite pleasant to be with. Alicia Smith was his current girlfriend, although he knew that this relationship wasn't going to last any longer than next few weeks. Here she was going to be called under surname of 'Johns'. She was going to be working with Ravenclaws. Although Harry found her nice, helpful, caring, she irritated him sometimes with acting like stupid, whiny kid. She was quite average looking - blonde hair, blue eyes, quite pretty face and nice body. It sounded like she was hot but in reality she looked just okay. She was a War Mage - a mage specialised in hand-to-hand combat and offensive spells.

Third member of the team was Harry's best friend in the Department. And the only person other than Alicia, whom he knew real name of. His real name was Fred Bones (here he would be Fred Clark). He was a half-vampire and that probably made him somewhat special to Harry. His father was a vampire and as far as Harry knew, Fred never got to know him. Fred was really loyal friend, smart, great to be with although he had completely no sense of humour. Fred thanks to heightened limit of raw magical power in his body learned three different schools of magic. He was a War Mage, Animal Mage (a mage who specialises in magical creatures magic, languages and so on) and an Assassin Mage (a mage who specialises in silent killing, spying and other 'stealth' jobs). Unfortunately for him he was going to spy on Slytherins (maybe here his specialisation as an Assassin Mage would come in handy).

Fourth person was James Forte. His character was really unknown to Harry - they rarely spoke to each other. He knew that James tended to be silent, some people thought he was mute, but Harry heard him talking more than enough times to tell that he wasn't. James was also someone who mastered more than one school of magic - He was a Defence Mage (anything that had to do with protection, wards or counter-curses) and Mind Mage (this practically allowed him to scan and make use of minds as Harry could with his vampiric abilities and also it allowed him to amplify his psychic abilities with magic).

Well and the fifth member was Harry himself. He was going to be here as Harold Clark - brother of Fred Clark. Harry changed both psychically and mentally since his fourth year. He was no longer cheerful, adventurous guy he used to be. He knew the feel of pain, hunger, struggling to survive. He experienced a lot of emotional, mental and psychical blows. He was rather cold, bitter and sarcastic to most of people and opened the true - warm, caring and funny self only to those whom he trusted with life. During the last two years he went through the most excruciating training any human (or during the most recent times vampire) ever endured. He was learning and training 24 hours a day. He didn't need to sleep as a vampire. In result he was the only one ever to master all standard schools of magic (mastering specialisations, additional courses, potions and so one would take him a veeeery long time, at least he had something to do with endless life as undead). However this knowledge even combined with his vampiric abilities didn't make him all knowing or all-powerful. Very many older mages or even powerful wizards (who knew how to fight with a vampire) could defeat him.

Those were all of the people he knew who were going on mission. He didn't really need to know anyone else. He reported everything to Andrew Bolton and continued his job.

Harry put the tip of the wand into his mouth and muttered 'Sanguis'. Immediately his mouth was filled with warm, human blood. And immediately he felt the complete bliss of drinking it. In moments like these he really liked to be a vampire. No human could experience such pleasure, not even through love or sex. He drunk a little more and muttered 'Finite Incantatem'. He whipped his mouth (there wasn't really anything to whip - vampires spilled blood only in movies, even the most clumsy and inexperienced vampire was far too skilled to spill a drop).

He looked around to find a nice, empty compartment. Almost immediately he found one and took his trunk to it. Just as he sat down he saw that Alicia was entering the same room. He raised an eyebrow.

"Already miss me?" He said while grinning. Alicia just rolled her eyes.

"You have a big head... Clark" She grinned mischievously and dropped herself on his lap.

"Oh my God, you're so heavy..." He smiled at her, while she smacked him playfully on arm. Harry looked around to see if anyone was close. "Did you see others?"

"Yeah, your brother..."She smiled a little "... and James."

"And anyone who is not one of us?"

"Yeah, I talked to few people."

"You know, it's going to be big, probably bloody mission. I don't like it already. Brings too many memories."

"But it won't be as bad. You had few mission involving travelling in time. And missions like that are such pain in the arse... Always worrying that you can alter whole timelines."

"Well, I exactly know what you're talking about. Did I tell you that I once fell in love in the past?"

"No you didn't."

"At the time I thought that the girl was my, y'know 'the one', 'soul mate', 'true love', call it as you wish but as I see it with perspective it may have been love but I'm not really sure of it. I think that this question will ponder me for whole eternity."

They talked for some time. Mainly about past missions, Voldemort, their relationship, other mages and few other things. After some time Alicia fell asleep in Harry's arms. He wasn't going to sleep now - not after 'no sleeping' period of three months. It would be simply strange to simply rest now, after months of extreme work, training, stress etc. He levitated her gently and lay next to him so that she would be comfortable and he would be able to go.

Harry used invisibility charm on himself (this charm was his personal success after hundreds of hours of struggling - only five wizards in century before him managed to get the charm done properly). He went to look around, just to look if he would recognise any faces. Maybe he could also find others from Department to talk to.

He found James being almost attacked by swarm of girls. Harry set kind of telepathic connection, so that James would be able to see him but as someone translucent so he would clearly know that he remained invisible. James noticed him and sent him a telepathic message saying 'Help me!' Well, James choose himself rather good-looking form using the Polyjuice potion. He was now a good-looking guy with light-blue eyes and blonde hair. He had quite pale face and very smooth skin. All in all he looked more like vampire than Harry did now. If you don't count fangs. But as Harry suspected James was rather... well, inexperienced (that's a HUGE understatement) with girls.

Harry couldn't really guess what James needed help with. After all being in centre of affection of girls wasn't a bad thing, was it? Well, maybe James was shy person, Harry never knew. He sent telepathically few sentences to James and after that he left him there.

Harry soon found Andrew pretending to sleep. Unfortunately Andrew wasn't a Mind Mage but every mage went through at least basics of telepathic communication. Well, maybe he forgot because Harry couldn't send him a message now and he didn't want to mess with his mind.

He went on until he found a compartment where he saw someone familiar. Now there's Fred Weasley sitting... Wait, wasn't Fred supposed to have left the school already? Harry looked closer and saw that this was Ron. The similarity to Fred (or George) at that age was smashing. At least his old friend looked good. He was tall, very muscular; his hair was much darker now, almost resembling something between red and brown.

The next second he recognised other faces here. Draco Malfoy was there. Most surprising fact was that others seemed entirely okay with the fact that he was sitting there. Well, relationships change sometimes. He was as tall as Ron and was rather thin though few muscles were showing here and there.

Next to him a nice looking girl with red hair whom held his hand. Well, if Malfoy started dating Ginny then this explained a lot of things. Ron, Hermione and Draco couldn't be sworn enemies if Ron's sister dated him (maybe at the beginning Ron would be acting like a git but later he would just have to live with it). What surprised him was that neither Ron nor Hermione did show any feelings towards each other. When he left state of things seemed like they were going to date in few months. Harry briefly scanned their minds and found out - they were an item form brief time at the beginning of their fifth year, however they simply couldn't stand the arguing. When they were friends it was reasonable however in relationship it became unbearable.

However the most startling difference was in Hermione. Her hair didn't completely lose its bushiness but it flattened to reasonable state. She was nicely curved, had a little tan. She was quite short. She looked, to simply put it, good.

Harry certainly wanted to introduce himself now, however he didn't know how they would react to vampire student they just met. Besides he wasn't good at making friends. He was always able to leave that to Alicia in the Department...

And so, he went to his compartment and for the first time in three months fell asleep, next to Alicia.

When he woke up he saw that everyone from his team (except for Andrew) was in the compartment. Alicia was already up and was talking with others. It was dark, probably only hour or two before they arrived. Well, he woke up in good time, since few people entered the compartment; few very familiar people.

"Hello, my name is Ron Weasley. I heard that you're from Durmstrang." Durmstrang had been second largest school in Europe - it was destroyed few weeks ago by Voldemort's forces. In their background story - they were from Durmstrang. They had to learn everything about this school before they went to the mission. Alicia immediately picked up conversation and introduced everyone. Harry smiled to himself. He would probably never be as outgoing as Alicia was.

Harry listened and he got to know that now Ron was chaser for Gryffindor team. He was very good with all school subjects. Harry looked over him more carefully and noticed that he had a symbol of shield with phoenix on his right wrist. No human could see that but a powerful vampire could pierce through glamour with keen vampiric eyesight. It was a symbol of Dumbledore's group fighting Voldemort. Well, it was quite interesting that Ron was one of them - after all to become a 'Protector' as they called themselves you had to be quite powerful wizard. Finally Ron directed his attention to Harry with a simple question.

"Do you play quidditch?"

"I used to play few years ago but I don't have time to do it now. I was a seeker, fairly good one as I heard."

He heard Ron let out a barely audible gasp as he noticed Harry's fangs. Although fangs were now barely visible (they extended to full length when drinking blood or when vampire wanted them to extend) they were still about 1/8 of inch longer than normal teeth were. And the next question pointed out that he didn't choose to ignore it.

"Since when are you a... vampire?

Well, he never was the best when it got to sensitiveness. Harry could answer this question truthfully.

"Half a year."

Ron seemed satisfied with the answers or he simply realised that it isn't polite to ask question about Harry's vampirism. He tried to engage James into conversation. He failed.

After some time he got up, said goodbye and went out. It was probably because of the sight outside. Hogwarts was already visible. Harry quickly changed into his robes. The train stopped and Harry felt his eyes wet with blood tears when he heard the familiar voice booming.

"First years and Durmstrang students over here!"

He blinked back tears as he saw Hogwarts. Home. He was home.

A/N: So this is the first chapter. I hope that you liked it. Encouraging and constructive criticism welcomed. Flames not.