Professor McGonagall was also one of those who were woken up.

The explosion was so loud and the noise was so great that when she looked out the window at the Black Lake, she thought Death Eaters were breaking in.

Fortunately, she saw Harry, George and others, otherwise she would have really jumped from the third floor.

Filch was still gesticulating and gritting his teeth, scolding, "Professor McGonagall, these two have gone too far this time!"

He ignored Harry and Hermione, as well as Ron, who was related to George and Fred, and pointed at the mischievous twins and scolded them loudly.

"Confinement!"

"Put them in solitary confinement!"

"It's best to ground them. They are not allowed to leave the lounge except during class. No, they are not allowed to leave their dormitories!"

As the most restless element in the entire Hogwarts.

Filch had wanted to snuff them out long ago.

This time I finally found the opportunity.

Mag spoke, sighed, and gently waved his wand. The ice surface trembled, and with a clang, the ice near the lake broke apart, turning into a slender arm, extending to the place where the magic power was the strongest in the lake, scooping in and grabbing a few pieces of grenade fragments that were broken apart by the explosion and wrapped in a thick layer of ice.

The cold air emanates from them continuously.

“Disappeared.”

Mag cast a spell on them, and the fragments and ice disappeared.

Warmth gradually returned to the air, leaving only large sections of floating ice on the Black Lake and the icicle that shot up into the sky, recording what had happened here.

"It's a very good thing." Mag praised. "If Harry uses it against me, it will probably cause a lot of trouble."

Filch looked at the Deputy Headmaster in surprise.

What happened...

He even praised them!

George and Fred puffed out their chests with pride.

"I understand that." McGonagall continued, "The situation is special, but... you should at least tell the professor."

She glanced at Harry and said, "Mr. Potter is indeed very good, and I believe he can solve unexpected troubles, but this is Hogwarts, and there are professors here."

"And you have indeed caused a lot of trouble." She turned around and saw a crowd of people gathered at the castle gate, all sticking their heads out. The brave ones walked out of the castle, eager to try, and moved cautiously step by step towards the castle.

"so--"

"Ten points to Gryffindor."

George and Fred were unmoved; they were used to being deducted.

"Everyone," Professor McGonagall emphasized.

Hermione's face was very calm. It would be a rare occurrence if Gryffindor didn't get deducted points.

"You two should stop those little businesses." Professor McGonagall said with a straight face, thinking for a moment, "For the next month, Mr. Filch and I will supervise you together."

George and Fred stared with wide eyes and exclaimed.

They are not afraid of deductions.

But they are afraid for their business.

Although Professor Dumbledore repeatedly emphasized this at the opening dinner, it is well known that the school rules of Hogwarts are such that as long as you are not discovered, you have definitely not violated the rules.

Professor McGonagall's involvement undoubtedly increased the risk of them being discovered.

even……

It is very likely that you will be discovered every time.

Costs are rising dramatically.

"Mr. Weasley, there is no room for negotiation." Professor McGonagall said sternly, "This is your punishment for making such a fuss on Saturday."

She turned around and walked towards the students who were watching the fun, asking them to leave.

"That's terrible." George covered his face.

Fred sighed as well.

Ron gloated: "Who told you to give Hogwarts a different kind of shock early in the morning on the weekend."

"Little Ronnie, don't be so happy." George let go of his hand, expressionless, "Our business is related to your pocket money. If we can't do it, you won't have pocket money."

"I'm not afraid. I still have nearly ten Galleons in my hand." Ron pinched his waist.

Fred added: "It's not until this year, next year, the year after, until you graduate, until you find a job."

Three years...

Ron counted on his fingers and concluded that ten Galleons might not be enough for him to spend until graduation.

Think about the gifts Hermione bought for Harry, and then think about the gifts Harry bought for Hermione, those things all seem to smell like money.

His expression changed immediately, and he became resentful along with George and Fred.

They waited until most of the people at the door had left before heading towards the castle.

"Professor McGonagall said she will only be in charge for the next month." Ron suddenly spoke, his eyes shining, as if he had grasped something.

George and Fred looked at each other. "A month?"

"Professor McGonagall is always very strict. If she was going to supervise all the time, she wouldn't explain it in such detail."

"That is to say..."

"We just have to pretend to be good kids for a month."

The two brothers echoed in unison.

Harry turned his head and looked to the side, where someone was limping towards him with heavy steps.

His platinum hair and hairstyle were carefully maintained but looked a little messy. His robe had a magical aura and had just been repaired to "restore it to its original state". There were new wounds on his legs, which had been simply treated with diffusa.

"Malfoy!" Ron was the second one to notice him. He took out his wand and looked like a cat with its fur standing on end. "What are you doing here?"

"Calm down, Weasley," Malfoy said, his voice full of contempt, "Don't expose your empty mind."

"What did you say?" Ron raised his wand.

Malfoy raised his head and walked up to George and Fred. "What was causing all the noise just now? Is it a new toy from your store? How much is it?"

"Malfoy," George sneered, stepping back in disgust. "Why should we sell anything to you?"

"You're a Slytherin." Fred was equally disgusted, "And you're a Malfoy."

Malfoy shook his head: "I'm here to do business with you, not to fight with you. Put away your stupid Gryffindor smell."

"If you don't want to sell it to me, I'll go find Hufflepuff or Ravenclaw. I'll just pay a little more, and you'll still make the same amount."

"Why don't you just earn this money yourself?"

George looked at him with interest. "Malfoy came to give money on his own initiative? That's really rare."

"Slytherin asks Gryffindor for help..." Fred exclaimed.

Malfoy interrupted him abruptly: "It's not a request for help, it's a normal transaction. I provide the money and you provide the goods."

"Twice as much." George raised his finger. "If you come to buy it, you have to pay twice the price."

"I'll ask Ravenclaw to do the shopping for me. I'll pay no more than one Sickle for each item. Weasley, I'm not as stupid as you." Malfoy bargained, but the greasy tone in his voice did not change at all.

"Then one more Sickle for the same product." George immediately changed his mind.

Malfoy pointed at himself: "I am here to see you in person now. This money will not pass through the hands of a third person..."

Fred pointed at him and interrupted, "The first one."

Pointing to George again: "The second one."

"The third one." Finally, he pointed at himself.

Malfoy clapped his hands exaggeratedly. "Should I praise you for your numeracy? Weasley, don't play such stupid, troll-like word games."

"Now we are doing business, the money I give you will not go through a third person...it will not go through a third party."

"Ten Nat. For the same product, it is enough for you to earn ten Nat more."

George shook his head. "One Sickle is twenty-nine Knuts, so twenty-eight?"

"Fifteen," Malfoy bargained.

Ron looked at this... angry, yet friendly scene in surprise, and was somewhat unable to react.

They didn't even fight?

They argued over the merits, and finally decided that the Weasleys would earn Malfoy an extra nineteen knuts for each sale.

"So, what was that thing you used just now?" Malfoy took a deep breath and asked.

"Sorry, that's not a product of Weasley's Joke Shop." George shook his head and rejected it flatly.

Malfoy was startled and clenched his fists: "Not considering selling it?"

"That's a weapon. Prank props are never meant to hurt people," George said with a smile.

Malfoy sneered.

Prank props are not intended to hurt people? This is simply the funniest joke I have heard in the past few years. Where did the injuries on my body come from the year before last and last year?

"Of course, we can show some extra leniency to certain things that are not considered human beings," Fred added sarcastically.

Malfoy frowned. "Since you don't sell that thing, then some other things. Let me think about it. The wolf tooth Frisbee..."

One prank prop after another came out of his mouth.

These were things that had been used on him and had caused him harm.

"Two Galleons, fifteen Sickles, and eight Knuts in total." George quickly calculated the price, including the premium that had been agreed upon before, and he held out his hand.

"One hand pays the other hand delivers the goods." Malfoy was unmoved.

George sighed, a little regretful: "Then we can only wait for a month. The commotion we just made was quite loud. Professor McGonagall will keep an eye on us for a month."

Fred suddenly hits a kidney shot.

George didn't look back and immediately changed the topic: "This is Professor McGonagall's encouragement to us. It is for us to become better in our last year at Hogwarts, to work hard to purify ourselves and strive to..."

Harry interrupted his tirade: "Professor McGonagall isn't here."

“Fred!” George couldn’t control his expression. He covered his waist and grimaced in pain. “You damned bastard!”

Fred looked innocent: "My hands just felt a little itchy just now."

"One month?" Malfoy read the date. "Then I'll come to see you next month."

With that, he limped towards the Slytherin table.

Ron patted his face gently, and the slight pain told him that this was not a dream: "What happened to Malfoy?"

"Mr. Malfoy is not having a good time in Slytherin." George shook his head. "Didn't you hear that a fight broke out in the Slytherin dormitory after school started? Our best guest, Mr. Malfoy, fought ten people alone and was trained for an entire night."