Back in the common room, Harry pulled out the letter Hermione had repeatedly mentioned, which read:

Dear Mr. Harry Potter,

I hope to see you in the Alchemy Classroom after dinner on Friday, and we look forward to seeing you in front of us as we begin our first extracurricular session.

Your faithful Bernard Rochefort

It was a short letter, but it surprised Harry, because he didn't sign up for the extracurricular study group at all, and looked at Ron at each other, Harry seemed to think of something, and said to Ron in despair, "Take out that letter of yours and read it." ”

Ron opened his letter with hindsight, and it was much more detailed than Harry's:

Dear Mr. Ron Weasley,

Ron, I'm sorry that neither you nor Harry signed up for my extracurricular study group, but Mrs. Weasley asked me to take a good look at you, and I've gladly agreed, so I'm looking forward to seeing you both after dinner on Friday.

Your faithful Bernard Rochefort

"Oh no!" Harry cried out in despair.

……

Bernard, who was a big nuisance to Harry and Ron, was standing opposite the tapestry on the eighth floor of Hogwarts Castle where the troll battered Barnabas Silly was located, and it was home to Hogwarts' greatest secret, the Room of Requirement. It's a very magical room, it doesn't appear at all with regularity, it comes and goes, but when one really needs it, it definitely appears. All it takes is for the user to concentrate on the desired space and walk through the wall opposite the tapestry three times, and a very smooth door will appear on the wall, and then they can enter the Room of Requirement.

Thinking back to these records he saw in the book, Bernard was a little excited, if his biggest expectation before was Voldemort's soul fragment, then after successfully obtaining Voldemort's soul fragment, if you want to say where Hogwarts can still interest Bernard, then the Room of Requirement is definitely one, according to Bernard's speculation, this room should be jointly created by the four founders, the four most powerful wizards a thousand years ago, Godric Gryffindor is good at Transfiguration, and is a world-famous Transfiguration master at that time, There has always been a saying that he is the most powerful wizard of the four, inheriting the ancient way of knighthood. It has always been recorded in the history of magic that Helga Hufflepuff was good at food-related magic, but according to Bernard's speculation, Helga probably inherited the knowledge of the very mysterious food wizard of ancient wizards. Salazar Slytherin was a master of potions, and potions is also known as "plant alchemy", in ancient times, potions and alchemy were difficult to separate, the difference between the two disciplines was not obvious, until modern times, due to the in-depth development of the two disciplines in their respective fields, the two were completely separated. As for the last Rowena Ravenclaw, she has always been recognized as the smartest wizard of her time, and what she is good at has always been a very mysterious field of magic, the realm of soul magic, in this regard, the Imperius and Soul Extraction are only the surface of it, but in modern times it is a very deep spell. And in this ever-changing room, Bernard can see traces of transfiguration, alchemy, and soul magic. If this room could be taken apart and examined in detail, Bernard would be absolutely delighted.

But now, the biggest attraction here is the Ravenclaw tiara, which is said to increase the wearer's intelligence, and was later made into a Horcrux crown by Voldemort.

In fact, Bernard didn't really want to be inserted into Dumbledore's plan, and Bernard was in favor of Dumbledore's training of Harry to fight Voldemort, but he had a reason to have to insert it, and the previous white ghost crystal containing Voldemort's soul fragments was the fuse of all this, or from the moment Bernard sought to get the most benefit from the confrontation between the two top wizards, everything was involuntarily.

In Bernard's research on this mutant white ghost crystal, it has been difficult to get started, but the knowledge about the soul is very precious and rare, and Beauxbatons's library does not have this knowledge, at least not the part that is open to students. Although Hogwarts has it, there are really very few, there are only two magic books, and the root cause is that there has been a period of witchcraft abolition in modern times, which has led to the destruction of many evil witchcrafts, and there is a little evil related to souls, such as horcruxes.

But by chance, in fact, there was a time when Bernard was too tired after studying and lay down there to sleep for a while, when the mutated white ghost crystal happened to be next to Bernard's head, and then a power that could nourish the soul relieved Bernard's exhaustion, so that he woke up quickly, and his face was refreshed, this situation reminded Bernard of a legend, about the legend of the Ravenclaw crown, Bernard thought it was too incredible to be able to increase wisdom, However, if it can relieve the fatigue of thinking and keep the brain full of energy at all times, wouldn't it be the same as increasing wisdom? So today, Bernard came to find this low-hanging treasure to test his guess.

I thought to myself, "I want a place to hide things." Bernard walked back and forth in front of the smooth wall three times, and then a quaint and elegant door appeared on the previous smooth wall, and pushed the door in.

Bernard looked at this huge and messy "garbage heap" and thought that these were all treasures, according to some clues in the original book, it is not difficult to see that the house-elves of Hogwarts always throw waste here, and the teachers and teaching staff will also put some of their own private collections here, everyone thinks that they are special, and this room is just their own secret, this idea is really ridiculous.

After a cursory glance, Bernard found a lot of interesting things, and picked up a bloody notebook, which seemed to be made of animal skin, and put it in his pocket without looking too much, and carefully searched for the bust of the old wizard and the brightly colored wig set according to the original book. It has to be said that the best way to hide something is to put it in a pile of inconspicuous things, and if it is not a purposeful search, who will go to find a broken iron ring.

Looking at the iron ring on the head of the wizard's statue, Bernard thought to himself, maybe Rowena Ravenclaw came and might not recognize it as his crown! After trying the "Flying Spell", seeing that the crown was motionless, Bernard put on dragon skin gloves, took out his usual box from his pocket, slowly climbed to the garbage heap and took off the crown, did not dare to delay more, hurriedly put it in the box, and waited until the box was sealed, Bernard was really relieved, turned around and glanced around the room with requests, pushed open the door and walked out.

Standing in front of the smooth wall, Bernard repeated the previous process, but this time, thinking "I want a standard alchemy classroom", pushed the door open again and entered, and Bernard left satisfied.