This story is the conclusion of the trilogy begun in Harry Potter: Zero (and continued in Harry Potter: Metamorphosis). In case you don't recall what happened in those two stories, here is a quick synopsis.

(Yes, the text here is rather dense. I am trying to cram a whole story into a single page)

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What has gone Before:

A summery of "Harry Potter: Zero"

Harry Potter was sorted into Ravenclaw, not because he is a strong student, but because it is the least inappropriate house. In fact, he is a slacker who has tried to keep his head down and avoid attention in his first three years at Hogwarts. It is a survival skill that he learned living with the Dursleys.

He has avoided the Mirror of Erised, or of interacting with Quirrell or chasing into the Chamber of Secrets or any such extra-curricular activities. He is a mediocre student, mostly due to a lack of self confidence. He spends all his free time hanging out either with Neville, another insecure student from Gryffindor, or Draco, an abusive Slytherin who enjoys mocking Harry.

But in his fourth year, the triwizard tournament is announced, and somehow, his name is added to the roster of Champions. As Harry tries to prepare for a task that he know is beyond his abilities, a Beauxbatons professor, Adam Loew, volunteers to teach him Martial Arts, as a way to improve his self confidence. He also meets a severe young witch who is always hiding in Fleur's shadow – Hermione Granger, who transferred to Beauxbatons from Hogwarts during her first year.

As the tasks progress, Harry draws closer to his housemates, especially Terry and Luna. Luna has been at Harry's side for much of the year, often unnoticed, and as the year draws to a close, they start a sort of relationship, which forces a break between Harry and Draco, though oddly, Goyle is supportive of Harry, and himself draws away from Draco. Or perhaps not so oddly, as Goyle becomes romantically involved with Hannah Abbott.

While Harry's martial arts practice has the desired effect of improving his skills in his other subjects, Harry starts to love the disciple for itself, and he pulls in Ron, a driven, if not terribly bright, Gryffindor into joining him.

Despite the unexpected chaos in Harry's life, the school year goes well for Harry, and he manages to make a good showing at the tasks, even winning at the second task when he rescues Luna from the merfolk village. But the last task ends badly, as after an arduous race through a hedge maze laced with traps and monsters, Cedric lets him grasp the Goblet first.

Harry is immediately transported to a graveyard where Moody captures him and uses his blood to recreate Voldemort's body. Harry manages to steal Voldemorts wand as the Dark Lord is monologuing to his Death Eaters, and then flees for his life, leaving his own wand behind. After a desperate race through the graveyard, he grasps the Goblet again in the faint hope that it is a two way portkey.

And it is. It brings him back to the maze, where Cedric immediately demands that he go back to the graveyard. When Harry refuses, Cedric threatens him, and aims his wand at Harry. Feeling betrayed by all those he trusted, Harry lashes out with deadly force, blasting a hole in Cedric's chest just as the professors burst in through the hedge maze.

Harry end up arrested, but the other Champions give testimony that Cedric assaulted them as well, so there is a ray of hope for Harry. In the end, Harry is released to return to the Dursleys, until the trial.

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A summery of "Harry Potter: Metamorphosis"

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Harry spends the summer with the Dursleys, trying to not think about what happened at the end of the Third Task (or much of anything else). He spends his time pretending to do the chores assigned by his Aunt while instead working out on Dudley's exercise equipment and continuing his martial arts training. This is only interrupted by periodic nightmares of Voldemort torturing and killing people, and sparring with Dudley, who has taken up boxing. When Luna tries to get in touch with him, he can't bring himself to think about the wizarding world, so he blows her off.

The summer ends with Harry having to stand trial for defending himself against Cedric, but the trial ends with an attempt to foster him out to a Death Eater family. Between that and the Dursleys kicking him out for being a murderer, Harry finds himself living with the Weasley's and getting to know Ron, who he had been only faintly friendly with before.

When Harry returns to Hogwarts, Luna ignores him, pretending that she does not know who he is. He is further isolated as the Daily Prophet has been printing slander against him, so as to discredit his claim that Voldemort has returned. His peers avoid him. The only exception is Hermione, the Beauxbatons girl genius, who graduated early and is now just taking two classes at Hogwarts as she preps for her OWLs.

Harry and Hermione grow close as they both have to deal with Umbridge the Horrid, who rules DADA with a doily'ed hand. As both become increasingly frustrated with the lack of a solid DADA class, they decide to organize a Defense club. That, and they start dating, despite their different outlooks on life: Hermione is very orderly and studious, while Harry has a problem with authority and is only working hard to impress Hermione (and stay alive)

Things come to a head when Fred and George sneak a portable swamp into the school grounds and disillusion it right in front of Umbridge's office. All club activities are banned, and the DA becomes an illegal club. Nevertheless, the DA continues to meet. Harry slowly takes more and more of a leadership role, training the DA to fight separately as well as in groups. The semester ends in a large game of capture the flag between Neville's Team Green and Terry's Team Blue with Harry refereeing. Neville's team wins, despite having weaker players, because of better strategy.

Over winter break, Harry and Hermione spend some time together, and Hermione informs him that she will start an internship at the Ministry of Magic in the spring, cataloging prophecies for the Department of Mysteries. Harry is concerned that he won't see her anymore, so Hermione creates pair of Protean charmed medallions so that they can stay in touch (Harry shoots down her first choice - a pair of rings).

Harry also starts learning Occlumancy with Remus Lupin, who informs him that Sirius Black is innocent of the crimes that he is accused of, as well as his godfather. Harry and Sirius meet and sneak off to London, to go to a comic book store and then a fish & chips place.

In early spring, Harry gets a message from Hermione on his charmed Medallion that she is trapped in the Department of Mysteries by Death Eaters. Harry organizes a rescue mission. They get split up, but eventually find Hermione and they manage to defeat several Death Eater. Everything looks like it might end well, when a stray cutting spell catches Hermione in the chest. Hermione bleeds to death in Harry's arms.

Harry passes the rest of the semester is a haze. He goes to Hermione's funeral, and takes his OWLS, but the only thing that he cares about is getting revenge on Voldemort.