The people in the library looked at them, it was okay to study the dark arts, but it was better not to say it. Hogwarts doesn't condone dark arts research like Durmstrang does, but it doesn't prohibit it either. It's just for the sake of Hogwarts' reputation that people never openly study the dark arts.

The study of dark arts is not exclusive to Slytherin House, and there are no fewer people studying dark arts in other houses than Slytherin, but they are not as flamboyant as Slytherin students.

Harry and Hermione are more idealistic, black and white. Although it will violate the school rules, the black magic will not dare to touch it.

Ron muttered even more to the side, "He really should go to Slytherin." ”

"Don't make a noise, it's just a counterspell of black magic, and it's not even in the forbidden book area." Nick Dow.

Hermione was stunned for a moment, then sat down and asked, "You guys are working on countering the dark arts?" Why don't you look for me, I can help you. ”

Seamus replied proudly: "We have learned the anti-spell, and now we are using the counter-spell to guess the spell, but there is no progress." ”

Hermione's face changed, "I won't help you." ”

"I know, so I didn't plan to look for you." The Knicks were helpless.

Hermione wanted to walk away, but she didn't want the Knicks to go to the point of no return and didn't know what to do.

Tifa came back to his senses at this time, he saw a large pile of books in front of Nix, and asked, "Brother, I'll speculate this spell for you, can you not use aphrodisiac?" ”

The Knicks were puzzled, and Tifa's words had no beginning or end, so he didn't know how to answer.

On the other side, Harry asked Hermione, "Hermione, what kind of spell is this?" ”

"Fire Spell."

Ron thought that he would learn a counter-spell, and if the Knicks used this spell against them, they could also prevent it. He was looking forward to Nyx studying the Fire Charm, he had heard that the Fire Charm was one of the few dark arts that the Ministry of Magic allowed to learn, but usually the person who released the spell burned themselves to death, and it would have been perfect if Nicks hadn't put it in place.

He asked, "Hermione, can you teach us a counter-spell?" ”

Hermione was reminded that she was going to spread the spell's counter-spell so that Nicks wouldn't be able to hurt anyone with it.

Pick up the book and read it carefully.

Tifa took Knicks' arm and looked at him with a pitiful look, trying to impress Knicks with a look of "I'm cute, pathetic".

"You have to explain something before I can promise you." The Knicks pulled back his hand.

Tifa: "I heard, you have an aphrodisiac?" ”

"Yes."

Tifa asked again, "Have you tested it on others?" ”

"Yes."

Tifa looked around and whispered, "It's those two people who declared true love." ”

Nix nodded, not speaking.

Tifa said carefully: "Brother, I won't make trouble for you, can you not use the aphrodisiac on Luna?" ”

Nix smiled and asked, "Scared?" ”

Tifa nodded, describing the bleak scene of Goyle and Crabbe sitting in front of the castle watching the sunset together.

Knicks lamented that the doorway was about to become a gathering place for victims, and Filch liked to stand at the doordoor to show a sad look and mourn her deceased little brother.

"You don't have to worry, Luna is smarter than you think, not so easy to be fooled."

Tifa was relieved to hear Knicks say this, turned around and pulled Ginny to talk to Luna, be careful of Nix drugged.

But she was immediately pulled by the Nix. "Where are you going? Promise me to help you guess the spell. ”

Harry asked puzzled, "Nyx, why are you speculating on spells yourself, even Tifa has pulled up, and there are no spells in the library?" ”

Seamus explained, "Of course there are spells in the library, but in the forbidden section, can you find the professor and get the note?" No professor would lend such a dangerous spell to a sophomore. ”

Knicks thought to himself, then you're wrong, there's an idiot professor who would say yes, and he doesn't even look at what book he wants to borrow when he signs the note.

Ron thinks the same way as Knicks. Open your mouth to retort: "Lockhart will, Hermione will whine"

Harry covered Ron's mouth, afraid he would tell him what had happened.

Tifa's Voyeur potions made her very powerful at parsing, very quick to master spells, and occasionally able to innovate, which was once appreciated by Professor Flitwick and invited to the club founded by Professor Flitwick.

She was invited to show off in front of the Knicks, who could only envy him for gaining knowledge of potions, but Snape had no idea of inviting him to a private club, and Knicks even doubted that Snape had started a private club.

But he was pretty sure that when the Potions Professor was replaced by Horace Slughorn, he would be able to join the Slug Club, and both his Potions talent and his family would meet Horace Slughorn's requirements. In addition, with Tifa's performance, it is likely that he was also invited.

A few days later, Hermione, Harry, and Ron managed to learn the Reverse Spell.

The crowd gathers outside the castle, and Tifa conjects some spells, which Nyx wants to experiment.

It wasn't Nix who used the spell, it was Seamus, and no one else had the confidence to control the fire, only Seamus had confidence in it.

After a few spells, there were no ill consequences caused by the mispronunciation of the spell as imagined, and the spell of the Burning Spell was found.

Seamus's wand spewed flames, the light of which caught the attention of everyone in the castle even during the day.

Nicks felt that if he had unleashed the spell, the flames would probably have scurried uncontrollably, burning anyone.

Seamus's fire didn't run around, it took on various shapes rather obediently, and he dispersed most of it, and finally turned into a puppy, and the flames that erupted from his wand formed a chain around it.

Nicks took something out of the lady's pouch and threw it at the puppy, who kept jumping up and catching it under Seamus's control, as if Nix was feeding.

However, compared to the actual feeding, the Knicks threw out various materials, and the materials swallowed by the puppy were burned to ashes.

Both the Knicks and Seamus were happy with it, the power of the fire was beyond their imagination, and there was almost nothing to resist its burning.

When several professors arrived at the scene, Seamus had not yet put away the puppy. Professor McGonagall said sternly, "Mr. Finigan, your fire control is very good, but I hope you don't cast this spell in the school in the future, it is dangerous, both for you and for others. ”

"Okay, Professor." Seamus dispelled the fire spell and agreed.

"You'd better go back to the castle. Oh yes, and as a reward for mastering powerful spells, Gryffindor adds five points. "Professor McGonagall is still nice to them.