Because a professor had a supper, while eating supper in the kitchen, the students quickly learned of Lupin's imminent resignation.

Although the students, including Harry, lamented Professor Lupin's departure, no one could stop him from helping his brothers and sisters.

Over the weekend, Harry's trio and Blake find Lupin together.

Harry and the three of them wanted Lupin to stay and continue as a Defence Against the Dark Arts professor, after all, such a reliable professor in this class was not easy to meet.

Blake was silent after hearing Lupin's plan, he was more mature than Harry and the other little boys, and could understand Lupin's thoughts.

In the end, it was Blake who showed his pride as a moat, and after going home and rummaging through the cabinets, he handed Lupin a copy of the title deed of a house in Hogsmeade that had been abandoned for many years, and Blake said that the house had been given to him, and that their association could use the house as its headquarters.

In this way, it was a happy outcome for Lupin, who left Hogwarts, and for students such as Harry, who could often see Lupin in Hogsmeade, and Blake.

In the following time, Lupin was preparing for the final exam, while Zhang Xu was very busy.

In addition to reviewing and preparing for the final exam, Zhang Xu also had to prepare the final exam papers for the Muggle Studies class, as well as prepare the fifth and seventh grade students for the . LS Ten Years Past Papers and . Ten years of real questions".

In the last Muggle studies class of the semester, Zhang Xu finally highlighted the students: "What I have talked about is the main point. ”

The student in the seat almost drew his wand and fought him.

Exam week has finally arrived.

During the Transfiguration exam, Zhang Xu turned the teapot into a money turtle, and Professor McGonagall nodded with a cold face.

During the Charms exam, Zhang Xu's happiness spell made his partner Anthony Goldstein smile like a flower. Ten minutes later, Zhang Xu, who did not take any precautions, received a strengthened version of Anthony Goldstein's happiness curse, and then walked out of the examination room singing "We ordinary people, we are so happy tonight".

Zhang Xu also successfully passed the exams in the history of magic, potions class, herbal medicine class, and ancient runiwen studies.

During the Defence Against the Dark Arts exam, Professor Lupin's clearance test made the candidates feel very fresh.

In the first level, you have to wade through a pond with Grindillo, in the second level you have to walk through a pothole full of red hats, in the third level you have to walk through a swamp with a Hinkpunk with a bad indication head, and at the end of the level the boss is to climb into an old box and fight a new boggart.

It's just that in the end, Zhang Xu made a little noise when he solved Boggart, which made Lupin very curious about what Boggart would conjure up in front of Zhang Xu, Zhang Xu obviously used Occlumency on himself during the previous class, and Boggart couldn't see the fear in his heart.

After the exam, as usual, he took a week off to wait for the results, and while the other students were herding sheep, Zhang Xu forced himself to lock himself in the dormitory to review for the high school entrance examination that would come after returning to China.

Just the day before the final dinner, Zhang Xu, who had finally finished the "Five-Year High School Entrance Examination Three-Year Simulation", came to Dumbledore's office with a confused Harry.

After three years of contact, Zhang Xu felt that Dumbledore was a good old man, whether it was for Zhang Xu himself or for Zhang Xu's various small actions, he cooperated happily with Zhang Xu. So Zhang Xu finally decided to help him and push some things in advance. After all, Dumbledore's death three years later was a great loss to the wizarding world all over the world.

In Dumbledore's office, Harry sat at his desk with a cup of tea in a daze, Zhang Xu sat next to him drinking tea and eating snacks, while Dumbledore had a dark face, carefully observing the tattered diary, the Ravenclaw tiara, and Marvolo Gaunt's ring on the desk.

Dumbledore watched carefully for more than half an hour before he raised his head, frowning and casting an inquiring look at Zhang Xu.

"They're all Horcruxes." Zhang Xu said to Dumbledore with a serious face.

"The Ravenclaw crown was accidentally discovered in the Requirement Room when I was in my first year, and Marvolo Gaunt's ring was found by Professor Scarlett at Gaunt's old mansion."

"When I discovered Ravenclaw's crown, I sensed that there was a soul inside it, and that this soul had been trying to influence those who came into contact with it. At first, I brought it back to Huaxia and wanted to ask a senior to let the soul inside leave peacefully, but the senior told me that the soul inside was not the undead, it was the same as the soul of the living. ”

"When I learned about Riddle's diary last year, I found out that it was the same as the crown."

"So this year I turned to the Dementors for help, and the Dementors were able to confirm that inside the crown was a living and powerful soul. Then I let the Dementors eat the soul. ”

After listening to Zhang Xu's narration, Harry Potter was stunned, and Dumbledore leaned back in his chair thinking about something.

"What is a Horcrux?" Harry asked Zhang Xu.

"A Horcrux is an object that holds part of a person's soul. Hide a part of it in some object outside the body. In this way, even if your body is attacked or destroyed, you will not be able to die, because there is still a part of your soul left unharmed. Zhang Xu said to Harry.

"But, Zhang, at what cost?" Harry asked.

"The lives of others." Zhang Xu replied.

Harry looked at the three Horcruxes on the table in horror, "That is, ......"

"In other words, Voldemort killed at least three people in order to make Horcruxes." Zhang Xu said.

"If you want to finally destroy Tom, you must first destroy the other Horcruxes." Dumbledore said, "He probably has more than just these Horcruxes. ”

"There are traces of the Horcruxes he made, and I don't think he will randomly take cheap things as a carrier of Horcruxes, which is not in line with his identity." Zhang Xu picked up the Ravenclaw crown and said, "What he thinks can match his identity is likely to be a relic handed down by the four founders of Hogwarts." If you follow this clue, you are likely to gain something. ”

Dumbledore thought for a moment and nodded.

Then Dumbledore's eyes looked at the cabinet where the Gryffindor sword was kept, and then to Marvolo Gaunt's ring on the table.

Seeing this, Zhang Xu immediately took the ring away, "Professor, I think you can also see the curse on the ring, if you rashly destroy it, I think the backlash it causes will cause irreversible damage even to you." Let me take it to the Dementors, it's better to hurt them than to hurt you. ”

Dumbledore and Harry looked at Zhang Xu speechlessly, is your conscience so bad for the Dementors?

"Next comes the most important thing." Zhang Xu said with a serious face.

Dumbledore and Harry saw Zhang Xu's expression change, and they also became serious.

"I have to admire Professor Lemay's students, Beauxbatons' alchemy level is much higher than our Hogwarts." Zhang Xu took out the Horcrux detector and said, "This is the Horcrux detector I asked a friend of Beauxbatons to make, and it can detect nearby Horcruxes. ”

Looking at the Horcrux detector that Zhang Xu placed on the table, Harry looked confused, while Dumbledore stood up in surprise.

In the Horcrux probe, a red arrow pointed to Marvolo Gaunt's ring in Zhang Xu's left hand, and the other arrow pointed directly to Harry Potter.

Zhang Xu took out his wand and turned the last piece of dim sum on the plate in front of him into a double yolk egg omelette.