"How the hell did you do that?" Fred asked, shocked.

"Do you know what the most profitable business in the world is?" Catherine casually dragged over the chair next to her, cocked her legs arrogantly, and slumped on the table in front of the twins, "The answer is arms, and the only arms that the warring sides can buy." ”

"You think we're all evil arms dealers?" George asked incredulously.

"Although your initial goal is indeed naïve, your act of not selling to Slytherin has just forced both sides into a state of readiness, and now even if all the faculty and staff of the whole school join forces, they will not be able to prevent the outbreak of this 'war', and as the only arms dealer, we are naturally in a transcendent monopoly position, and neither side can offend us if it wants to win."

"Then why buy it for Slytherin?" Fred shouted in displeasure, "We were meant to lose you." ”

"Because our contract clearly stipulates," Catherine smiled brightly, "that if you deliberately don't make money, I can unilaterally withdraw all of your money, and then you will go bankrupt." ”

"That means we can't afford not to accept Slytherin's order!" Fred complained with great displeasure, "Sure enough, it's the treacherous Slytherin." ”

"Who called you the people who took the initiative to cooperate with me in the first place, and you were the ones who didn't take this situation into account, not to mention that I didn't cheat you! Or maybe your purpose wasn't to make money at all. Catherine asked with a wink.

"You've made us a spy on our enemies!" Fred hugged his head and cried.

"You can look it another way, you are earning the blood and sweat of the enemy." Catherine patted the redhead in front of her comfortingly.

"It's late, our image is ruined by then!" George covered his face, "I don't have a face to see people!" ”

"You can slow down the delivery." Catherine smiled and said, "One hundred units of each item per day, and the supply will start in three days, but it can't be delayed for too long, otherwise-hmph!" ”

"Shhh Fred and George gasped at the same time. "It turns out that you are the real arms dealer, a bastard who eats the east and eats the west!"

"Whatever you say, anyway, I just need the firepower of both sides to be almost balanced!" Catherine smiled and got up, "Therefore, you must provide Draco with that purchase order immediately, of course, if you think Draco and they are just Slytherins, you can do it alone, but in that case, I may fight to break the contract and get justice for them." The red-haired girl gave a creepy smile.

"It turns out that the guy who is not human inside and outside is us!" Fred said dumbfoundedly.

"And what are we?" George asked with a frown. "Marionette?"

"Congratulations! That's right! Catherine said with a smile.

"Can I beat her?" Fred asked his siblings.

"Beat it up! I can't help it! George immediately rolled up his sleeves.

"Alright! I'll give you a beating! Catherine did what she said she would, and she really couldn't fight back.

Fred and George each punched, and immediately felt bored, so they had to obediently accept their fate and go to work as a coolie who was not human inside and out, and Catherine smiled brightly, and then rubbed her shoulder, which had been hit twice, and walked slowly back to Slytherin.

"Sorry, several!" As soon as I returned to the dormitory. Catherine's face was filled with a hint of worry, "Fred and George didn't expect Slytherin to order so much, and after they supplied Draco's order, they didn't have enough stock here at Hogwarts. We are now recruiting people to increase productivity, and it will take about three days before the normal supply rate is formed, so let's wait for the goods to arrive before paying! ”

"Are you sure they're really going to supply Draco's order right away?" Ixissi asked.

"Of course! I can absolutely guarantee it! As soon as Catherine finished speaking, Dobby appeared next to Draco with a large box.

"Master Draco. This is what you want, Mr. Fred and Mr. George said they are all ready, but please do not buy any more in the short term. They can't supply anymore. After reading the book, he noticed the people around him, and quickly put the box on the table, and then shrank behind Catherine.

"Senior Ixesi, I want to donate this batch for the common use of the academy." Draco said righteously, "While most of the third-year students aren't here, they're not going to disagree with my decision." ”

"Draco, you've really solved the needs of the other grades, but you can't break the bank! So be it! The other houses can take one item of each item, and leave the rest for your third year just in case. With that, Ixissi waved his wand and distributed it, and the platinum boy was no longer humble when he saw this.

After the division, the other five chiefs and Alexander. Thatcher left first, while Ixissi signed a check and handed it to Draco before leaving.

Since the number of people in the other five grades combined was exactly 60, and it was paid at a 7% discount, which was equivalent to Draco buying the rest of the goods at a 2% discount, which was only half of the cost price, which made Draco laugh from ear to ear.

"Do you think I'm going to sell the rest?" Draco couldn't help but ask.

"You really want to be by people from other colleges?" Catherine rolled her eyes.

"After all, this is my first time doing business!" Draco smiled sheepishly, "Is it true that Fred and George's side can't supply them?" ”

"They don't want to supply at all, but unfortunately the contract I signed with them stipulates that they can't make money." Catherine smiled, "So they can only take orders." ”

"Compared to you, I'm just a little shrimp." Draco sighed, "Why drag on for three days? ”

"The Arms Dealer's Principle." Catherine said solemnly.

"Ensure that the firepower of both sides is roughly balanced." Draco gasped and exclaimed, "Can I smuggle?" ”

"It seems that you are the one who really fell into the eyes of money?" Catherine got up with a smile, "I'll see if I can get you some smooth." Draco hurriedly followed.

But as soon as they left the Slytherin common room, they saw the twins hurrying in, and they kidnapped Catherine like a whirlwind, leaving a stunned Draco behind.

The twins kidnapped Catherine in order to let her deal with the purchase orders of other colleges, after all, she was left to count the money, but the two of them had to work as coolies, which definitely made them extremely unhappy, not to mention the red-haired girl's excellent memory and mental arithmetic skills, which could save a lot of time.

So the laborer became Catherine, who not only had to calculate the total amount of each purchase order, but also to sort and label them and list them accordingly.

Fred and George only had to follow the contents of the purchase order, label the goods with the corresponding codes, and then put them into bags representing the three colleges.

Luckily, with the help of magic, they were able to load all their goods by seven o'clock, but Catherine couldn't leave, but instead had to follow them to the common rooms of Hufflepuff, Ravenclaw, and Gryffindor, and read their numbers and collect the money by the way.

Catherine was annoyed by the thought of having to repeat these things for the next ten days, but the twins would add countless accidents out of thin air, so she had to be as efficient as possible so that she could get rid of it sooner.

It was only Catherine's acceleration that Fred and George immediately felt a huge pressure, and when the goods of the three houses were divided, they were also completely exhausted, and fell asleep in the chairs in the Gryffindor common room, and finally Percy got them back to the dormitory.

Since it was the first time she had entered the Gryffindor Tower, Catherine couldn't help but be a little curious to see how it was different from Slytherin, so Harry, who was in charge of the reception, had to do her best to show her around.

Hogwarts is a magical castle, and even if everyone wants a luxurious suite, it has a way of providing it, but Godric. Gryffindor believes that children should be together to be more lively, so Gryffindor House has dormitories where boys and girls are deliberately separated.

But after seeing the messy boys' dormitory, Catherine still admires the courage of Draco, Brace, and Pansy to dare to stay here for one night, but it is only when she hears that the house-elves will help clean up after the students leave school at Christmas.

Sensing the boys' distress, Catherine changed the subject, pretending to care about the blob, only to find that it was skinny and thin, and its hair had fallen thin.

"It's getting worse now!" As soon as Ron talked about his pet, his words became fluent, "It must be very unaccustomed to the African climate, so it is so sick, and Crook Mountain is still trying to catch it, so it can't take care of it." ”

"Is the feline expulsion spell I cast on the house ineffective?" Catherine asked puzzled, listening to Ron's tone, it seemed that Spotted had been tossed by Crook Hill a few times.

"Spotted doesn't stay in there all the time, I often see it coming out, so ......" Harry didn't say any more, obviously not wanting to offend both of his friends at the same time.

"Catherine, add a few more spells, make sure only Ron can take it away, so it shouldn't run around anymore." Hermione said.

Ron nodded immediately, and Catherine silently added magic to the pet house with a wave of her wand, but those spells not only made it impossible for Spotted to leave the "cage" at will, but also gradually weakened its body.

So when Ron puts Spotted back in the house and sees that he has become listless and even asleep due to the effects of magic, he thinks that he finally feels safe, and he can't help but express his gratitude to Catherine.

After taking care of the spotted whereabouts and visiting Hermione's dormitory, Catherine returned to Slytherin to rest and recuperate for the next nine days.

Because all students knew that the school did not explicitly prohibit the sale or purchase of hoax products, it was absolutely forbidden to use them, so both buyers and sellers deliberately kept all the faculty and staff, including ghosts and portraits, from them. (To be continued......)