Harry Potter's History
On his eleventh birthday, Harry receives a letter informing him that he is a wizard, and that he has a place at the Hogwarts School of Witchcraft and Wizardry. Despite initial opposition from his aunt and uncle, he soon goes to the school, where he learns that he is very famous in the wizarding world for having defeated Voldemort ten years previously. Eventually he and his friends, Ron Weasley and Hermione Granger, becomes entangled in the protection of a mysterious artifact later discovered to be the Philosopher's Stone. The group is able to thwart a plan orchestrated by Voldemort and a professor at the school to steal the Stone.
Chamber of Secrets
Harry is almost prevented from returning to Hogwarts by his aunt and uncle, and again when the gate and Platform 9 & 3/4 seals itself and prevents both his and Ron's access to the train. Eventually making it to school, Harry soon gets swept up into the mystery of the Chamber of Secrets, a room rumored to be located in the school which supposedly contains a monstrous creature. Harry soon learns that the monstrous creature is a basilisk and that the release of the monster is being orchestrated by a fragment of Voldemort's soul that has been planted in Voldemort's childhood diary. He descends into the Chamber of Secrets and battles the basilisk, killing it and destroying the fragment of Voldemort's soul.
Prisoner of Azkaban
Harry is warned that a man named Sirius Black has escaped from Azkaban Prison. Though everybody is hesitant to tell him why this pertains to him, he is warned to be cautious. He soon discovers that it was apparently Black that betrayed Harry's parents to Voldemort. Harry also discovers a particular susceptibility to Dementor's due to his troubled past, and enlists the help of Defense Against the Dark Arts professor Remus Lupin, an old friend of Harry's father, to teach him how to cast a Patronus. Eventually he, Ron and Hermione encounter Black. Along with Lupin, Black explains that he was not responsible for the betrayal of Harry's parents, and that he is Harry's godfather. Harry prevents Black and Lupin from killing the true culprit, Peter Pettigrew, resulting in Pettigrew's escape and Black's capture . Through the use of magical time travel, Harry manages to rescue Black, allowing him to escape custody. In the final segments of the book, Professor Lupin is revealed to be a werewolf, and ends up being forced to take leave of his job by angry parents.
Goblet of Fire
Harry attends the Quidditch World Cup, witnessing firsthand the destruction wrought by Voldemort's terroristic Death Eaters when a gang of them attack the campsite in the aftermath of the match. Harry then returns to school and, despite being only fourteen, and thus too young to compete, Potter is selected as the fourth participant in the Triwizard Tournament. Though he did not put his name in for the competition, Harry is magically bound to compete. He does so at great personal risk, and manages to win the Tournament, albeit tying with fellow Hogwarts student Cedric Diggory. Upon doing so he and Cedric are transported to a graveyard where he learns that his participation in the competition was an elaborate ruse to use him to resurrect Voldemort. After ordering an underling to kill Cedric, Voldemort uses Harry's blood in a spell that gives Voldemort his body back, and Harry barely manages to escape being killed.
Order of the Phoenix
Harry and his cousin are attacked by Dementors. When Harry uses the Patronus charm to repel the Dementors, he is expelled from school for using magic while underage. However, before the decision is made absolutely permanent, headmaster Dumbledore intercepts, and ends up reversing the jurisdiction. Harry is then allowed to return to school. He quickly becomes the target of Dolores Umbridge, a Ministry of Magic employee who becomes the new Defense Against Dark Arts teacher. Umbridge resents Harry and refuses to believe that Voldemort has returned. After the Minister passes decree after decree heightening Umbridge'd already formidable control over Hogwart's, Harry starts a secret student organization, Dumbledore's Army, to instruct fellow students in defensive and offensive magic. However, The Room of Requirement, where Harry had been using his hideout, is discovered by Draco Malfoy, and through him, Dolores Umbridge. On the brink of being expelled, Harry is once again saved by Dumbledore, who ends up stunning several Ministry officials and proceeds to flee Hogwarts. Meanwhile, Harry also begins to experience mysterious visions of what he later learns is the Department of Mysteries. After a particularly disturbing vision, his much-loathed teacher, Professor Snape, is instructed to teach Harry Occlumency to protect his mind from magical interference, but fails due to their mutual animosity. Harry experiences a vision of Black being kidnapped and tortured in the Department of Mysteries and eventually travels there with a few friend to attempt to rescue him. The vision is revealed to have been a fake, and Harry's group is at the mercy of the Death Eater's, when the Order of the Phoenix and the real Sirius Black come to their aid. In the following duel, Bellatrix Lestrange, Voldemort's trusted lieutenant, kills Sirius. In a rage, Harry chases Bellatrix, only to meet Voldemort himself instead. However, Harry is saved by the timely arrival to Dumbledore, who proceeds to engage Voldemort in an earthshaking duel. Before Voldemorts Apparates away, however, some Ministry officials manage to get a glimpse of him, causing Fudge to finally admit that Voldemort has returned. At the Department he hears a prophecy which explains that he is destined to kill Voldemort, or that Voldemort will kill him.
Harry begins to suspect that fellow student and enemy Draco Malfoy is a Death Eater, and plotting something sinister. Returning to school, he begins his first year of NEWT studies, and uncovers a mysterious potions book that once belonged to a student identified as the Half-Blood Prince. This book contains numerous tricks and hints for potion-making, as well as new spells. Meanwhile, Harry begins receiving lessons from Albus Dumbledore, who teaches Harry about Voldemort's past and enlists him in the search for Voldemort's horcruxes, magical items that contain a part of the users soul and unnaturally extend the possessor's life. Harry and Dumbledore locate what they believe to be a horcrux and steal it, leaving Dumbledore badly wounded. When they arrive back at the school, they are confronted by a group of Death Eaters. Harry is magically frozen by Dumbledore, and witnesses Snape killing Dumbledore. He pursues Snape from the school and attempts to engage him in a fight before Snape Disapparates. Harry learns that the horcrux he recovered was a fake, and vows to track down the remaining horcruxes and destroy them.
Harry is no longer protected by the spell cast over his aunt and uncle's house, and so flees in the dead of night. Despite precautions they are attacked, and lose a number of valuable friends. He, Ron and Hermione dedicate themselves to locating the remaining horcruxes, but spend a great deal of time wandering aimlessly and hiding from the Death Eater regime, which seeks to capture them. They locate one of the horcruxes and eventually manage to destroy it. He learns of the Deathly Hallows, the Elder Wand, the Resurrection Stone and the Invisibility Cloak, and discovers that Voldemort is seeking the Elder Wand. He and his friends are captured by Death Eaters but manage to escape, in the process learning the location of another horcrux, which they find and destroy. He returns to Hogwarts, where the other horcrux is located, and leads the school in forcing out the Death Eaters. He located the next horcrux and sees it destroyed while the school is being besieged by the Death Eaters. He sees Snape killed by Voldemort, and learns that Snape was secretly working for the Order the entire time. He learns that he himself is a horcrux, accidentally created when Voldemort attempted to kill him as an infant, and allows himself to be struck with a killing curse by Voldemort. This kills the soul fragment, but Harry remains alive. With the final horcrux destroyed by fellow student Neville Longbottom, Harry and Voldemort duel. Voldemort attempts to use the killing curse on Harry, but it rebounds upon him, killing Voldemort.