Inside and outside Hogwarts Castle, there is powerful, bloated, and porous defensive magic.

For example, you can't infiltrate Hogwarts by apparition, riding a broomstick, or climbing over walls, but you can get into Hogwarts Castle by taking secret passages or detours through the Forbidden Forest.

These defensive spells can protect against people riding broomsticks, but other magical creatures such as Dementors and flying cars cannot. Back then, Charlie and the dragon they came to transport Hagrid away were just a behind-the-scenes scene for old Deng.

At Hogwarts Castle, all the windows on the first floor are magical, and people can only enter the castle through the doorway, and if you want to climb through the windows to enter, you can only wait to be thrown out by magic.

The same goes for the windows and balconies on the castle floors, you can jump out, but you can't fly in from the outside.

Unless you turn into an owl.

The exception to this was that Dumbledore could enter the castle by drilling through balconies and climbing windows. At the beginning, after Zhang Xu learned about this, he complained in his heart for a long time.

It's just that what Zhang Xu didn't expect was that Dumbledore also ran to the balcony of his dormitory to find him one day.

Zhang Xu came to the balcony and saw that Dumbledore was already sitting on a rattan chair on the balcony, where he was leisurely eating the dessert that Zhang Xu had prepared early in the morning on the coffee table.

After taking his seat, Dumbledore said to Zhang Xu straight to the point, "Did you notice anything different about Harry, Ron, and Hermione today, Zhang?" ”

Zhang Xu thought about it for a while, and suddenly he really couldn't think of anything wrong with Harry's trio today. After carefully recalling the performance of the three of them just now, Zhang Xu suddenly found something different.

"Hermione doesn't seem to object to Harry's study of the curses and spells in the books." Zhang Xu thought about it and said, "This is not quite in line with Hermione's character, she has always been skeptical and even opposed to this unknown knowledge. ”

Thinking about this, Zhang Xu also found some places that had been ignored just now.

As the trio and Ginny left, Ron and Harry mentioned finding a place to try the other spells recorded in the book.

This means that they must have tried some of the above spells before coming to them, and those spells can be seen as soon as they look at the effect and know that they are not good spells, and one of the properties of black magic is that it can gradually affect the user's mind.

As the saying goes, don't take the evil as small, no matter how small the evil is, it is also evil. If you don't discipline yourself when you steal needles when you are young, you will be cut down by the old man with a sickle and axe for stealing bananas on the side of the road when he grows up.

And the kind of small dark magic invented by Snape is the most subtle in the mind of wizards without being alert.

The temptation of extraordinary power to people is like the food additive that Zhang Xu gave to the dementors, it is easy for people to indulge in it

It seems that Dumbledore, who has been paying attention to Harry, has discovered this, but he can't directly hang Snape and Zhang Xu up and beat them up before taking back Harry's old textbooks, so he can only talk to Zhang Xu about how to prevent Harry and the others from going astray.

After all, the practice of the past few years has proved that in dealing with a bear child like Harry, Zhang Xu's means and effects are a little better than that of Lao Deng.

When Dumbledore saw Zhang Xu's thoughtful look, he knew that he had noticed something abnormal.

After eating the dessert in his hand, Lao Deng said to Zhang Xu: "During the summer vacation, Mo Li mentioned to me that Ron behaved a little strangely during the summer vacation, and often sat quietly by himself, not knowing what he was thinking. At the same time, he also becomes easily angry and sometimes has nightmares at night. ”

"Maybe it was on the train that left him with psychological trauma." Zhang Xu said.

After the fierce battle, because of the confusion of people's minds due to various reasons in the battle, Zhang Xu heard his father mention such things. For example, sometimes some fighters do not perform well in battle, and even cause injuries or sacrifices to their comrades, which makes it difficult for fighters to fall into negative emotions such as self-blame. That's where instructors and commissars come in.

In the train robbery at the end of last semester, Harry's trio basically played soy sauce, while many other students performed well.

For example, Percy, Fred, and George worked together to kill a Death Eater, and even Draco Malfoy dragged a Death Eater to prevent him from harming the other students......

In this way, Ron's psychological gap is big enough, and when the psychology is up and down, it is inevitable that some problems will arise.

And judging by the performance of everyone today, the Harry trio have more or less a bit of post-war psychological syndrome, which has caused them to deal with strange dark arts differently than before.

In terms of psychological counseling, Zhang Xu really doesn't have much knowledge. He can only increase the psychological shadow area for others, and now he can only catch blind when he encounters such a thing.

Zhang Xu estimated that Dumbledore came to him to find a way to do it himself, but he really had no choice but to ask in advance, "Do you have any solution, Professor?" ”

"I'm worried that they'll be affected by the dark arts." Dumbledore said, "I suspect they may be trying to pursue power to avoid having their own help if this happens again." ”

After working in the school for so long, Dumbledore still has a set of grasps of the psychology of students.

Zhang Xu also nodded after listening, young boys and girls who are eager for strength are naturally easier to deal with than boys and girls who are eager (⊙⊙).

"Then we need to strengthen them?" Zhang Xu said, "But their strength has grown very fast, and if they continue to go fast, it will be difficult to control, so that the black magic will take advantage of it." ”

Dumbledore was also worried about this, there are not many ways to improve his strength in a short period of time in the wizarding world, but they can basically be related to dark magic.

"I think it's time to set a good example for them to learn from and avoid them going down the wrong path." Dumbledore stated the purpose of coming to Zhang Xu tonight.

Zhang Xu, who figured out Lao Deng's thoughts, was so easy to learn as a communist successor?

So Zhang Xu said to Lao Deng: "Aren't you their best role model?" ”

"Recognized as the greatest wizard of our time, a recipient of the Order of Merlin of the First Degree, the chief magician of the Wizengamot, and the former president of the International Federation of Magicians."

"Harry, they need elders like you to teach them life lessons."

Lao Deng, who wanted to pull Zhang Xu into the water, didn't expect to be countered by Zhang Xu, Zhang Xu was right, if you want to guide Harry and them on the right path, he is indeed the best role model.

But......

"But I don't have that much time to teach them." Dumbledore said to Zhang Xu, "You know, in the next few years, I will have very few worlds in Hogwarts. ”

Zhang Xu also said in his heart that he didn't have so much time to train them, and now he has more than 30 kilograms of college entrance examination review materials waiting to be brushed by himself.

couldn't give Lao Deng a chance to throw the pot on his head, so Zhang Xu immediately used his brain to think of a way.

Not long after, Zhang Xu slapped his head and thought of a theoretically good solution with reference to the "plot".