A/N:
In the Angel/Buffyverse Angel didn't take the wolfram and hart offer and Spike didn't get transferred into the amulet he just went to LA to get some time to work on having a friendship with Angel rather than kill each other
1 year later
"Are you sure about this Angel?" Harry asked his mentor,
"Harry I am sure," Angel said irritably "everyone has a dark and a light side, the best way for you to control all of your powers is for you to embrace your dark side,"
"You cause you are on such good terms with Angelus." Harry muttered but he knew that Angel could hear him."
"I am actually," Angel said "I want him away and he stays away, he does as he is told, but we aren't talking about me we are talking about you,"
Harry and Angel were currently sitting in Angel's office talking about Harry's dark side as the others had called it, Spike on the other hand claimed to like the darker side of Harry or the vampire side as he called it, claiming that as they had gotten all of Harry's spell books for the next 4 years they should focus on training him on how to be a vampire and Willow and Tara would be able to help with any magic problems.
"I don't think that it is a good idea to separate them though," Harry said "I mean if I separate them I won't have control over the dark side will I?"
"I get the feeling that you don't want to not be in control," Spike said from the doorway "I get that it is to do with you being a vampire huh? We aren't taking your soul away just separating your types of magic."
Harry seemed to be slightly placated by this as he sighed at this and nodded. Over the last year Harry had been looked after well by Spike, Angel and Harmony. The young vampiress had been quite protective of the young wizard. She had refused to allow Harry to go on the hunts and missions that could be potentially dangerous for Harry. After they had met the team of Angel' friends such as Wesley and Cordelia, Harry had been able to gain three older sisters/mothers in Harmony, Cordelia and Fred.
Fred had been an older sister in the sense that she made sure that he did everything that a teenager should do. Harry was lucky in the sense that he was able to go outside in the day time rather than having to wait until the night time like other vampires such as Spike and Angel, Fred had been able to engineer a machinery type bracelet that Harmony could wear so that she could go out in the daytime with Harry. Unfortunately the first time Harry had gone outside he had been taken shopping by the 3 young women and regretted the fact that he couldn't kill himself. Cordelia had bought him enough clothes to last him the whole year which made Spike and Angel laugh at the young man when he had returned and looked like he would kill the older vampires if he had do it again.
Angel and Spike had to adapt to having Harry around but after the time it had taken them they were surprised that the young man seemed far beyond the 11 year old that he actually was. Surprisingly it was Angel and Spike that had to stop a frothing at the mouth Harmony from going to privet drive and killing the Dursleys. It was at that point Harry realised he finally had people that cared for him and not just people that had him forced upon them to look after him.
"So just separating?" Harry said "not removing?"
"Not removing," Spike clarified "we even had Willow check it."
"Maybe when I am older," Harry said "we know that Voldemort is out there the stronger I am the better."
"Ok," Angel said.
Hogwarts had a very different year without Harry being there. Albus hadn't been able to find a defence against the dark arts professor so he had allowed Gilderoy Lockhart to take the job as he had claimed that he was qualified enough to take the job. It had turned out that Lockhart hadn't done anything what he had claimed to do which became apparent at a duelling club meeting when Severus Snape who was a trained defence teacher beat him in just seconds. Also the chamber of secrets was almost opened again when a Horocrux of Voldemort's was brought to the school by Ginny Weasley, luckily the Horocrux had been found just a week after the school year had began, this was because Albus had increased the wards since vampires had gotten into Hogwarts, of course the vampires had chanced upon finding Hogwarts and they didn't have any intention of hurting a student they had only turned Harry because of the fact that Harmony had been suffering from bloodlust.
Even though Albus couldn't prove it he knew that a family of a death eater was the reason why the diary had entered the school, surprisingly the loss of Harry Potter from the school had changed the whole school completely. Unlike Albus had expected the quite bookish Hermione Granger had came out of her shell more because she had been taken under the wing of the three Gryffindor chasers, it had became apparent in Harry's first year that the three older girls cared for Harry but it was even more obvious by the fact that Katie, Alicia and Angelia had seemed to pick up on the fact that Hermione was lost without her best friend and seemed to involve her with everything they did.
The three girls had taken turns missing Hogsmeade weekends so that Hermione had one of them with her so that she had a friend with her so that she felt more confident, this was because Hermione had gone from being a bookish 1st year that had a male best friend which had distanced her from the girls at Hogwarts already to having three older girls treating her like a little sister.
Ron on the other hand had not stayed friends with Hermione without Harry being around, he had become better friends with pureblood families, some of which where borderline dark families and families with Slytherin children that had been neutral during the first war such as the Greengrass's who even though they were Slytherins it wasn't because they were a dark family it was more to do with the fact they were ruthless businessmen and women who would do anything that they had to do so that they could survive.
Ron had really came into his own, making a whole amount of allies and friends which worried Albus as the majority of the group where purebloods and Albus had a fear that Ron Weasley would become like Voldemort, Albus had seriously hoped that he was wrong about the young Weasley male as the young man had appeared to be someone who would thrive within the light but it appeared now that he was being seduced by the power of the dark magic.
At the end of the year Hermione Granger and other Gryffindors somehow had either managed to make Veritaserum or stole it from Severus Snape and had given it to professor Lockhart and asked him about his accomplishments which had admitted to being false, even though Albus was unable to prove it he was sure that his potions professor had a ghost of a smile on his face when it was revealed that Lockhart was a fraud.
A year later
The next year the vampires got to see teenage Harry, teenage Harry was very different to 11 and 12 year old Harry. He was a lot more argumentative for one thing, he argued a lot more with Harmony over the fact that she treated him like a child and didn't allow him to go out on missions with Angel and the team claiming that he was old enough to do so, Harmony however as his sire had authority over the others on what Harry could and couldn't do and had forbidden him from going on missions until he was completely in control of his vampiric side whilst he was in a form of bloodlust, this was something that Harry was still unable to control which was why they tried to prevent Harry form getting into fights so that his bloodlust wouldn't get out of control.
Also Harry had his first interaction with a slayer when Harry met Buffy Summers, the blonde slayer had been worried about a magical vampire but when she met Harry she realised that there was not anything that she had to worry about as it was clear that Angel and Spike would raise Harry's vampire side in a way that would not cause problems for them in the long run as they were teaching Harry what was right and wrong as Angel had converted Harry to animal blood rather than human blood but there had been times that Harry had drank blood from Harmony when he had needed to but Harmony hadn't been bothered that Harry had drunk blood from her as they hadn't wanted Harry to drink blood from humans.
Hogwarts had yet another interesting year as a former marauder Remus Lupin was returning to Hogwarts as another marauder Sirius Black had broken out of Azkaban and seemed to be heading for Hogwarts, no one knew why though as Harry had 'disappeared' as he left in the middle of his first year. Dementors had been placed at Hogwarts so that Sirius Black couldn't get to the students much to the annoyance of professor Dumbledore as Fudge had simply done so without consulting the headmaster. Albus hadn't even known what the Dementors would be there until they had turned up.
It had turned out that Sirius hadn't wanted a student as such, Peter Pettigrew a man that Sirius had supposedly killed after he had betrayed the Potters which was why he was in Azkaban wasn't as dead as other people had believed him to be, he had hidden himself as a rat ironically as Pettigrew had betrayed the Potters not Black. Pettigrew had been a rat for the last 13 year of his life. Pettigrew was caught by Black and Lupin and handed over to the ministry. Sirius had been distraught as well as Remus when Albus had told them what had happened to Harry, however they both agreed not to try and track down Harry until he contacted Albus at least to let Albus know that he was in control of his vampire side especially with the strained relationship between vampires and werewolves and Albus didn't want Harry to lose a link to his parents because of this.
A year later
For Harry's 14th birthday he was taken to the pictures by Harmony and Fred, Cordelia had been helping Angel and Spike track down a demon and had been unable to go with them but on their way back to the old hotel where the group lived the demon came across the boy who lived.
The demon had ran at Fred probably smelling the fear that was coming off of the young lady but as he got within arm's length of Fred, Harry managed to grab the demon around the neck and lifted it up off of the floor and pinned it to the wall.
"Harry," Harmony said pulling on his arm but the arm was locked on the choking demon and showed no sign of Harry letting go of the demon.
"He tried to hurt Fred," Harry said and the two women could hear the anger in his voice and it was clear that Harry wanted to kill the demon and would do so because the demon had the nerve to try and take someone that Harry cared about away from Harry.
"I am ok though Harry," Fred said pulling his head away from the demon to look at her "I am ok, you can let him go."
"Ok," Harry said and both girls smiled at Harry and nodded, then however Harry moved his hand and snapped the demon's neck.
"What was that," Harmony said looking at Harry darkly
"I was protecting you," Harry said like it was simple.
After this it became clear that Harry would not be babied like he had been up to this point, he began helping Angel and Spike with all the jobs that they undertook, he soon fought vampires, demons and werewolves.
Hogwarts hosted the triwizard tournament which brought both Durmstrang and Beauxbatons came to Hogwarts to compete, Angelina Johnson was the Hogwarts champion against Viktor Krum and Fleur Delacour, the tournament ended in a draw with all three champions winning a task. Hermione had gone to the Yule ball with Viktor Krum which had ended her friendship with a jealous Ron who had accused her of betraying Hogwarts and Angelina. Angelina on the other hand was very proud of the young girl for getting to be Viktor Krum's date to the ball, Katie had gone to the ball with Fred Weasley and Angelina had gone with George, Alicia had gone with Lee Jordan.
As expected Hogwarts was a lot different with three different schools on the one campus, the other two schools integrated well with the Hogwarts students, a large amount of the Beauxbatons girls got on with the Hogwarts girls and the Durmstrang boys integrated well also, however there were some exceptions to this some Hogwarts boys namely Ron and Draco didn't do much for wizard veela relations when Ron accused Fleur Delacour of trying to seduce him and ruin his relationship with Lavender Brown, Draco on the other hand and more perversely had tried to rape 10 year old Gabrielle Delacour when he was sent to collect her for the second task.
Another year gone
When Harry turned 15 he was very lucky that he had been able to control his magic and vampiric urges and powers, if he hadn't been able to do so he would have been denied his return to Hogwarts something that he had been anticipating and wanting for a long time, he wanted to be able to see Hermione and Ron again, he had wondered if his best friends would remember him as he had been gone for so long. Furthermore Harry had wondered more importantly if Katie Bell would remember him the beautiful young chaser had kissed him before he had left, even though it had only been on the cheek there had been the promise of more when he returned, Katie had been involved in Harry's dreams many times over the years for many different reasons, when he was younger she was in his dreams for when he returned and she made good on her promise and kissed him on the lips.
However in more recent dreams or nightmares as Harry had preferred to call them this hadn't happened, Katie had moved on and met someone else, or she had told him that she had lied and she would never want a monster like Harry, normally it was a Weasley that she had been dating in the dreams and Harry wanted himself to be wrong as he didn't want to lose a friendship with a Weasley or Katie but as he had aged so had his feelings for Katie as he had at first been shocked that she said she would kiss him but now he was very much looking forward to it.
For those who knew it was just one more year until Harry returned the school was abuzz w2ith excitement especially for Hermione and Katie, Angelina was leaving Hogwarts after this year and it was also Alicia's last year as well which meant that Katie would be the only original chaser from Harry's quidditch team, something that she wasn't looking forward to but the fact that she knew Harry was returning had brightened her mood to the fact she had something to look forward to for the next school year even though it was her last.
The ministry had decided to impose a stooge on Hogwarts to try and limit the influence of Dumbledore as Fudge had become convinced that Dumbledore had wanted to overthrow him as the minister even though Albus had no intention of taking control of the minister' office as he was very much happy being headmaster and part of the Wizengamot.
Katie was suspended from quidditch with Fred and George after they had beaten up Draco Malfoy for him saying derogatory remarks about Harry and the Weasleys. At the end of the year the ministry stooge was still a part of the school however Katie and Hermione knew one thing that would shake the whole school up.
This summer Harry returned.
