"Take it easy, young man." Slughorn said calmly as he got busy with the business at hand, "In the thousand-year history of Hogwarts, there has been no shortage of students who have received extra help. ”

"I'm not against this happening, every student has their own unique opportunities. But you have to remember that the wisdom of the predecessors is only the wisdom of the predecessors. Don't use the wisdom of your predecessors to play tricks, what you have to do is to absorb the wisdom of your predecessors and then surpass them. ”

"Unless, of course, you get that brand new copy of Joyful Pranks at Hogwarts."

At the end, Slughorn seemed to think of something happy and couldn't help laughing.

After pouring the processed spore powder into a large glass bottle, Harry lifted his grandfather's glasses on the bridge of his nose, then took a deep breath and said, "Yes, Professor. I found notes written by the owner of the old textbook I got from the bookshelf at the beginning of the school year, and I followed the instructions in class. ”

Harry breathed a sigh of relief when he said that, he had the feeling of deceiving Professor Slughorn when he had been following the instructions of the Half-Blood Prince recently.

In class, he received as much praise as Zhang Xu, but he knew that Zhang Xu relied on his real strength, and he was tricky.

"Few people know that the old bookshelves in every classroom are actually a huge treasure trove." Slughorn sat down in the chair behind the podium when he was done, and motioned for Harry to find a place to sit down.

As Harry sat down behind the front desk, Slughorn was about to give a lecture when the door to the classroom was pushed open.

"Professor, there's news from the Centaur tribe." Zhang Xu said happily as he came in, "Let's go to the Forbidden Forest tomorrow." ”

Then Zhang Xu looked at the situation in front of him, was stunned for a moment, and said, "Am I bothering you?" ”

"No," Slughorn said with a smile, "I'm about to teach Harry a little bit about Hogwarts, so let's listen to it." ”

After Zhang Xu sat down next to Harry, Slughorn cleared his throat and said, "Since the four great wizards of Slytherin, Gryffindor, Ravenclaw and Hufflepuff founded Hogwarts, they have left a legacy that strengthens their students. ”

"In the beginning, the students at Hogwarts knew about it, and many of the best students learned that they had left behind their valuable knowledge in various forms."

"Later, with the passage of time, the inheritance of the four founders became a legend that was passed down in secret, and the excellent students left their knowledge and became a tradition that was passed down in secret."

This is Zhang Xu who saw Harry holding his glasses.

Zhang Xu heard this matter from Old Deng when he proposed to make Gandalf's grandfather's glasses to Dumbledore, and he himself encountered such a thing.

"All four founders have left their legacy?" Harry asked in surprise that old man Gandalf hadn't told him about it.

Slughorn didn't answer, but smiled and looked at Zhang Xu with a "I've seen through you" look. After Harry noticed Slughorn's gaze, he also looked at Zhang Xu with a surprised expression.

Zhang Xu shook his head with a wry smile and said, "It's a pity that I didn't get Ms. Ravenclaw's approval. ”

"yes, it's a shame." "It is said that the number of people who have received the Ravenclaw inheritance is the largest. ”

"I did get their help." Zhang Xu pointed to the old bookshelf in the classroom.

Slughorn nodded, he looked at the bookshelf in his free time, and saw Zhang Xu's handwriting on some books with notes.

And that day Ron was unlucky enough to draw a blank textbook.

"And what about the lineage of the other academies?" Harry asked excitedly.

Slughorn spread his hands and said, "It's all a secret of his own academy. And the only thing that leaked out was that Slytherin House had been in the house for a hundred years, and no one could find their own heritage. ”

Slughorn had a regretful look on his face after saying that, after all, he had been the head of Slytherin before.

At this time, Zhang Xu did not speak, and now his motto is "make a fortune with a muffled voice".

"Could it be that only wizards of Slytherin descent can find it?" Harry asked.

Then Harry stopped talking, and when Dumbledore taught him a lesson, he knew that wizards of Slytherin blood now only had a two-pin socket.

Slughorn also knew the inside story, and the expression on his face became strange.

Slughorn quickly adjusted his mood and continued: "In addition to the four founders, there are many excellent students who have left their knowledge in the castle. ”

"For example, teach the notebook you left behind." Zhang Xu said with a smile.

Slughorn grew proud at this point, as if he had been elected Minister of Magic. He said: "Mr. Zhang's insights on it are also very inspiring. ”

Harry watched in amazement as the two of them exchanged academics, but he hadn't heard where Slughorn's notebook was for a few minutes.

After a burst of laughter, Zhang Xu and Slughorn stopped blowing each other's academics.

"It's a pity that Lily didn't leave her textbook behind for various reasons, otherwise...... Alas......" Slughorn said with a sigh.

Then he continued: "Since you have the help of one of the seniors, then you have to study hard, such an opportunity is not to be found." ”

"Yes, Professor." Harry nodded in agreement.

"If there's anything you're not clear, you can come and ask me." As he said this, Slughorn had a look of thought about the past, as if he had seen the student with the same eyes as Harry asking him a question.

Slughorn stepped down from the podium and the matter was over.

Slughorn walked up to Zhang Xu and asked with some excitement, "Did the centaur tribe find it?" ”

Zhang Xu nodded and replied: "Yes, now is the time for them to ripen, and when they start to spread seeds in the spring, they will not be able to pick them." ”

Then Zhang Xu took out a piece of parchment, and unfolded it to reveal a rough map of the entire Forbidden Forest, drawing several circles in different places on it.

"Then let's go together tomorrow." Slughorn pointed to the nearest circle at Hogwarts and said, "Harry, you're going with you tomorrow, it's part of the confinement." ”

Harry didn't know what the two of them were going to do in the Forbidden Forest, but since it was related to the centaur tribe, it wasn't a dangerous thing.