Even Kyle didn't expect that the thing he casually gave to Neville would be so popular.

With Neville's hard work in promoting the project, more and more people started to come to him, wanting to buy the same type of anti-demon crystal...

It is worth mentioning that even the name was given by them.

Fred and George were stunned. At lunch the next day, they found Kyle at the Hufflepuff table and surrounded him on both sides.

"Kyle, didn't you say you didn't want to get involved in this matter?" Fred said, "Why are there so many people coming to us to buy things so early this morning?"

"Also, what is the anti-demon crystal..." George looked at him suspiciously, "Are you secretly doing something good behind our backs?"

"It's the amethyst used to decorate gifts at Christmas." Kyle was a little helpless. "I gave Neville one yesterday, and everyone knew about it today."

Not only Fred and George, he also received a lot of orders early in the morning.

Kyle rubbed his forehead.

Neville wanted to buy it yesterday, but he didn't have that much stock, so he didn't accept it and just gave the crystal to Neville.

At that time, Neville did say that he would help with promotion... I don’t know what he did that had such a good effect.

After listening to Kyle's explanation, Fred and George roughly understood what had happened.

"Neville Longbottom..."

"Why didn't he come to see you earlier!"

The two of them felt so regretful. If it had happened a few days earlier, they would have been counting Galleons by now.

The two of them hurriedly ate a few bites of lunch, then couldn't wait to go to Hogsmeade through the secret passage and bought a lot of large pieces of amethyst.

Kyle divided them into pointed crystal columns according to his memory.

To make the product more distinctive, he also added a homemade pepper bomb under the crystal column.

As long as you break the crystal at a critical moment, you can release a large amount of smoke containing pepper, and then take the opportunity to escape.

How should I put it...it's very popular.

Fred and George went to Hogsmeade three times to restock, and the last time they bought out all the amethysts in Davis Bangs's store, but there was still some supply shortage.

Kyle had to admit that he had miscalculated.

Everyone seemed to be on tenterhooks because of the secret room, and were willing to spend ten Sickles to feel more at ease.

So, even without the high-end market of Slytherin, they still made a small profit.

The only bad thing was that for a period of time afterwards, a smell of pepper could often be smelled in Hogwarts Castle.

Every day, little wizards accidentally break crystals, like Neville...

He consumed his Galleons so quickly that he drank one Galleon every two days, and Fred and George felt bad for him and gave him various discounts. He not only paid back all the money he had earned from Neville, but also lost some of it.

Harry and Ron, who lived in the same dormitory with Neville, complained several times that everything they ate tasted of pepper.

"I think you guys should get one, it's not those useless onions and salamander tails."

Hermione told them, "The crystal can be used to observe the situation in multiple corridors at the same time, the smoke can block the vision, and the pepper can affect the sense of smell.

Kyle has thought very carefully, no matter what the monster is, it will be useful."

"Maybe you're right..." Ron waved his hand and said, "But if you had a roommate like Neville, you wouldn't say that."

In this atmosphere, time quickly arrived in December.

So one morning, Kyle, Connor and Cedric went to the auditorium for dinner as usual, but when they passed the lobby, they suddenly noticed a new piece of parchment nailed to the bulletin board.

"What is that..."

Cedric leaned over curiously and read the words.

"The school is going to start a dueling club!" A Gryffindor in front of the group said excitedly, "The first meeting will be tonight, at 8pm, in the Great Hall!"

"They should have done this a long time ago." Someone said, "I'd love to take some dueling lessons. It might come in handy someday."

"Ha... You don't think the Slytherin monster would duel with us." A questioning voice came from behind.

Kyle turned around and saw that it was Ron. Although he said that, it was obvious that he was also very interested.

"Hello, Kyle." Hermione greeted, "Will you join the duel club?"

"I will." Kyle nodded. "I happen to have time tonight, and I'm quite interested in this club."

"We will participate too."

"It will always come in handy," she said to Harry and Ron.

"Of course I'll go, but I hope there's no pepper there," Ron whispered.

Harry nodded in agreement. They had been very busy these past few days and even ate less than before.

By eight o'clock in the evening, the auditorium had completely changed.

The long dining table disappeared, and a gilded stage stretched along one wall, illuminated by hundreds of candles floating in the air.

When Kyle and his companions came in, the place was already crowded with people... Almost all the students in the school were there, gathered in groups of three or four, each holding their own wand, with excitement on their faces.

"Who do you think will teach us?" Qiu asked curiously, "Will it be Professor Dumbledore?"

"It could be Professor Flitwick," said Cedric. "He was a famous duelling champion in his youth, so he's perfect for us."

"Maybe neither." Fred looked at the golden stage and whispered, "This gorgeous decoration reminds me of someone."

A few minutes later, Lockhart walked onto the stage in a radiant purple robe, followed by Snape.

"I knew it..." Fred groaned, "Except for this peacock, other professors don't like those fancy stage decorations."

"And Snape... there's no worse combination than this." George sighed, "Is it too late for us to leave now?"

Kanna looked back at the closed auditorium door and said, "It looks like it's too late."

On the stage, Lockhart waved for everyone to be quiet, "Come around, get closer."

"That's right. In order to allow everyone to protect themselves when they encounter danger, Professor Dumbledore agreed to let me open this small duel club and teach you some experience."

"I also want to thank Professor Snape, who gladly agreed to be my assistant. He is such a good man."

Snape's face looked a little ugly.

If it wasn't for getting Dumbledore to sign the list, how could he have joined Lockhart in this extremely stupid dueling club... and as an assistant!

But Lockhart didn't notice the change in Snape's expression at all. He was still grinning and said, "It's just a small demonstration. Don't worry. I will pay attention to the strength... After it's over, I will return your Potions Professor to you intact."

Snape's eyes became colder, and he stared at Lockhart as if he saw Harry with his eyes closed.

(End of this chapter)