Snape is right. Harry is going to leave the Dursleys' house before his 17th birthday. That night, Harry read the obituary written by Albus Dumbledore's friend, Elphias "Dogbreath" Doge, and also read about Dumbledore's family culture in the newspaper. It introduces Dumbledore's brother Aberforth and sister Ariana, which makes Harry very sad. He regrets that he has no chance to learn more about Dumbledore.
The Dursleys were safely sent away by two wizards, and then members of the Order of the Phoenix secretly sent Harry away. Although the six members of the Order of the Phoenix took the medicine "Polyjuice potion" respectively and turned into Harry's appearance, they were still released on the way with Hagrid, because Harry's habit was to use the disarming spell to avoid hurting others. Voldemort and the Death Eaters attacked Harry halfway, but Harry's wand still damaged Voldemort's wand. Unfortunately, Hedwig, Harry's owl, was killed. Harry finally joined the Order of the Phoenix at The Burrow. George Weasley lost an ear by Snape on the way, and Mad-Eye Moody was killed by Voldemort. Harry is angry with Voldemort and imagines Voldemort asking Ollivander, who made wands, why his wand can't beat Harry's.
A few days later, the Minister of Magic came to the Weasleys' house and brought Dumbledore's legacy to Harry, Ron and Hermione. For Ron, Dumbledore's extinguisher (or Put-Outer) can absorb all the light. Hermione received a children's book written in ancient Runes. Harry's is Godric Gryffindor's sword and Harry's first Snitch. The minister of magic temporarily detained the sword. The three of them couldn't figure out what they were giving them these things for, but Harry saw an inscription on his snitch, "I opened at the end."
The next day, Bill Weasley and Fleur Delacour got married. At the end of the wedding, news came that Voldemort had captured the Ministry of Magic. Harry, Ron, and Hermione left for the wedding. They first hid in a muggle cafe, but the death eaters immediately caught up with them, so they went to No.12 Grimes Square, the Black family's old house. This is when three people suddenly realize that Voldemort's box found in the lake says R.A.B, which may be Sirius Black's younger brother, Gullers. He tried to go back to the lake and destroy Voldemort's Horcrux, but he died there. However, Kreacher, the little monster in the family, was persuaded by three people to tell them that Mundungus Fletcher had stolen the box from here. Fletcher was caught by Kreacher and reluctantly admitted that he bribed Dolores Umbridge with the box to avoid his arrest.
Soul Seeker
After a month's investigation in the Ministry of Magic, the three of them intend to sneak into the Ministry of Magic. They took the doppelganger medicine, ambushed three Ministry of Magic workers and tried to steal horcruxes from Umbridge. After the three men entered the Ministry of Magic, they found many changes, and wizards with Muggle ancestry were publicly interrogated. The original fountain was gone, and a statue was erected in that place. Two wizards, a man and a woman, sat on a pile of muggle bones. The three were separated in the crowd, but Umbridge was finally found when she was questioning Muggle descendants. The three men knocked Umbridge down and took the horcrux. The three released several wizards of Muggle descent and persuaded them to leave the country as soon as possible. However, Iaccore discovered that the three people lived at No.12, Grimau Place, so the three people had to flee to the countryside, and they were fluent all the way.
A few months later, the three of them overheard a conversation that the Gryffindor sword in the Ministry of Magic was a fake and really disappeared. Harry consulted the portrait of phineas. It turned out that Dumbledore had destroyed a horcrux with that sword. Harry was going to find the whereabouts of the real sword, but Ron objected that it was meaningless to find that sword. Ron left the team after a big fight with Harry. Harry and Hermione were depressed a lot, but they decided to go to Godric's Hollow. Maybe Dumbledore left the real sword there.
In Godick Valley, they first visited the memorial site of Harry's family, and then went to the cemetery, where many people of Harry's family and Dumbledore's family were buried. At this time, they met an old woman, an old friend of Dumbledore's family, who once wrote a book "The History of Magic". They thought that the old woman might know the whereabouts of the sword and went home with her. But who knows that this is a trap, and the old woman is pretending to be a poisonous snake Nagini. Fortunately, Harry and Hermione escaped Voldemort's pursuit here, but Harry's wand was broken, and Hermione tried to fix it with her own wand, but it also failed.
The two men hid there for another two days, and finally found the whereabouts of Griffin's sword under the guidance of a female deer who appeared beside their residence. The sword sank under the frozen pool in the forest. Harry took off his coat and dived into the water to look for the sword, but Harry's horcrux always misled Harry and almost drowned him in the water. Fortunately, Ron came back, rescued Harry from the water and got out of the lake with a sword. The two men joined forces to destroy Harry's horcrux with swords. Hermione was not only happy to see Ron back, but also found the next task: to find Xenophilius Lovegood, and Luna Lovegood's father asked him for advice on the meaning of the Grind elwald (Rock Forest) sign that appeared many times along the way.
Deathly Hallows
At lovegood's house, Harry, Ron and Hermione heard many stories of former wizards. For example, three brothers defeated death, and everyone got a sacred object for it. These three "Deathly Hallows", one is the invincible wand, elder wand; One is a gem that can bring people back to life, the Resurrection Stone; There is also an invisibility cloak. Harry was very excited because he believed that his cloak was that one. However, it was not long before the three of them found out that Xenophilius had told the Ministry of Magic. His daughter Luna was caught by the Ministry of Magic, so he thought that if he gave Harry and others to the Ministry of Magic, his daughter might be released. It was quite thrilling for the three men to escape from many wizards, but Harry was still very courageous. He believed that Voldemort could be defeated by collecting three deathly hallows.
For several weeks, the three men still didn't find any deathly Hallows or Horcruxes. They accidentally found a radio station talking about what was happening now, when Harry accidentally spit out the word "Voldemort". No one dares to mention Voldemort's name at all. Saying these three words will only bring disaster. Voldemort's men immediately found Harry, Ron and Hermione and took them to Malfoy's house. Hermione was brutally interrogated and tortured by Bellatrix Lestrange, asking how Gryffindor's sword got into Hermione's hands. Bella thought she stole it from her, but it wasn't because what she had was actually forged. Harry and Ron were also imprisoned, along with Dean Thomas, Griphook the goblin, Ollivander who made wands and Luna. Harry took out pieces of his magic mirror and asked Dobby for help. Dobby came to save Dean and Ollivander, but Wormtail heard the sound and came back to check, and was subdued by Harry and Ron, but Wormtail never tried to kill Harry. Ron took off the wand in Wormtail's hand, pulled off the prosthetic hand Voldemort made for him, and strangled Wormtail with this prosthetic hand. Ron, Harry and Dobby rushed up the stairs to save Hermione. They ran away quickly and didn't meet Voldemort who was coming in a hurry. Unfortunately, Dobby was killed by Bella on the way to escape. Then several people came to the Shell Cottage, the home of Bill and Furong.
Harry and his friends buried Dobby and made a new plan. Harry asked Ollivander about the elder's staff, and decided not to stop Voldemort from looking for it from the tomb of Dumbledore, the previous owner. Harry turned to ask how the pull ring could break into Gringott, and promised to give him the Griffin sword made by the elves as a reward. After detailed planning, several people set off for Gringott to see if there was a chance to find Voldemort's other horcrux in Bella's grave. Hermione dressed up as Bella and Ron dressed up in disguise. Pull ring and Harry walked down the grave together in invisibility cloaks. They walked through many sets and finally found another Voldemort's horcrux, the Hoffpuff Cup. However, they were found when they were taking the cup. The pull ring grabbed the sword and fled in a hurry. Harry, Ron and Hermione also escaped in a thrilling way. But Voldemort finally knew that Harry was looking for his horcrux.
Shortly after his escape, Harry seemed to be in a dreamland again. He could hear Voldemort's words when he saw his eyes. Voldemort said exactly where all the horcruxes were, and Voldemort knew that Harry was looking for his horcruxes. Voldemort inadvertently mentioned that his last horcrux was still at Hogwarts School, and Harry suspected that it was attached to the relic left by Ravenclaw, the founder of the school. Harry thinks that if he wants to get the horcrux at Hogwarts, he should act immediately, because if Voldemort finds that other horcruxes are missing, he will definitely step up his guard.
World War II at Hogwarts
Harry, Hermione and Ron were met by death eaters in the street of Hogsmeade, and Aberforth's wit saved them. Aberforth opened a tunnel leading to Hogwarts behind the portrait of his sister Ariane.
When Harry came to Hogwarts, he warned the administrator that Voldemort was acting in secret. The junior students were evacuated for safety, while the senior students encouraged to stay and fight. The members of the Order of the Phoenix also gathered to help. Fred's estranged brother Percy is reunited with his family.
Harry, Hermione and Ron come to the room of requirement to look for the crown of Ravenclaw. Marv and his two younger brothers Goyle and Crabbe are also looking there. Crabbe used the wrong spell to burn all the mess that the students had saved for centuries, and the crown was burned. Harry and his friends flew away with the broom they found there, and saved Draco Malfoy and Goyle from the fire when they left, but they failed to find Crabbe in time and were burned to death in the fire. Ron and Hermione ran to the secret room and took the fangs of the strange snake. Only fangs can destroy horcruxes made in Hufflepuff cups.
Fred was burned to death when a wall exploded, and Hagrid was caught by Acromantulas. After Harry entered the dreamland again, he, Ron and Hermione deduced where Voldemort lived, so they came to Shrieking Shack. They saw Voldemort order Najini, the poisonous snake, to get rid of Snape, and Voldemort thought that this would transfer the magic of the Elder's Staff to him. On the deathbed of being bitten by a poisonous snake, Snape gave all his memories to Harry Potter. Harry recalled Snape's memory in a Pensieve. It turned out that Snape had always been on Dumbledore's side, and he had always been in love with Harry's mother Lily Evans. Dumbledore ordered Snape to kill himself when the situation was critical, and the spell placed on the ring with the horcrux had caused Dumbledore's life to last only one year. Harry also found that he was actually a horcrux of Voldemort. As long as Harry was alive, Voldemort could not be removed. Harry felt that life was meaningless for a while. Harry calls Neville to help Ron and Hermione kill Najini, a poisonous snake. At this time, Voldemort suggested that the two sides cease fire for an hour so that both sides can take care of the dead and wounded. If Harry doesn't show up automatically after an hour, Voldemort will continue to kill. Harry wore an invisibility cloak and went to the forest of death to face Voldemort. On the way, he saw the bodies of Remus Lupin and Tonks. Also killed there was Colin Creevey, a student who stayed to fight and was only in the sixth grade. He walked to the edge of the forest of death and suddenly remembered the "ending" in the inscription on the Snitch, so Harry put the Snitch in his mouth and thought, "I'm going to die." Harry found that hidden in the snitch was the soul stone, one of the three sacred objects of death. So Harry called back the souls of his parents, Sirius Black and Lupin, and they floated on both sides of Harry to help and protect him.
After meeting Voldemort, Harry found that Hagrid was taken hostage. Harry was knocked down by an Avada Kedavra spell as soon as he was born. Harry woke up as if he were at King's Cross Station and met Dumbledore, who had died. I can't tell whether Harry really died or whether Dumbledore accidentally visited Harry in his dream. Harry found that the spell defeated the part of Voldemort's soul that was involved in himself, and there was a dying life in the corner of the train station in his dream, perhaps that little soul. He also found that Dumbledore had struggled to find three sacred objects, but the reason was not so noble. Finally, the Dumbledore brothers and Grindelwald had a duel, in which Ariane was killed by accidental injury. Now, only Harry is entitled to have three deathly Hallows. Harry also knows that his wand will defeat Voldemort because it was once used by Harry's wand.