After a certain amount of sacrifice, most students have become familiar with Neil Wan's coping methods, and the stall in the corner of the common room has slowly blended into the overall atmosphere of Hogwarts, becoming a "magical, but nothing special" campus landscape like a moving staircase, a biting doorknob, and a ghost floating near the ceiling.

At present, the most popular product is Yiqi Dan - not the kind of thing sold in pharmacies in Chinatown, but the "real secret treasure of the fairy family", the formula is the dream of the ancestors, which can nourish qi and nourish blood, strengthen the brain and calm the nerves, and treat symptoms such as headache and fatigue, insomnia and forgetfulness. Unlike the popular brain wake-up agents in the past, this product is designed to allow the user to refresh as much as possible in the limited sleep time, even if they only sleep for two or three hours, and wake up refreshed.

Brain-waking drugs have long been widely contraband among students, as they stimulate the brain and keep the user in a constant state of excitement, thus further compressing sleep time. It is said that the high-end products also have the effect of improving memory in a short period of time, and they are expensive.

Sounds a little suspicious? In fact, it is. The vast majority of brain starters come with side effects of varying degrees, including arrhythmias, weakened immunity, and brain atrophy - except that they are not addictive, this thing is basically a magic version...... The kind of thing that can't even be mentioned by name! Although most of these after-effects can be cured for wizards, it is still unacceptable for most families to expose children to these things from an early age.

Fortunately, due to the blockade of formal purchase channels, the trade of rejuvenating agents between students has been in a state where the law of the dark forest prevails. Some of the older students — often those who usually appear to be of good character and academics, or even have just achieved excellent results in O.W.Ls exams — will rack their brains to sell their ailing juniors suspicious potions that they have "experienced firsthand": water from the sink in the public bathroom the day before (to wash their hands), leftover fat from lunch, and god-know-what weeds from the yard are pulled...... The lethality of these things is usually much less than that of the genuine goods.

As for insults...... Well, that's another thing entirely.

In contrast, this magical little oriental pill is much more reliable.

Ravenclaw students are now accustomed to taking this pill in their mouths before dragging their exhausted bodies to the bed at the end of a hard day's study. The slightly bitter taste sustains them as they squirm to change their pajamas before they fall asleep completely, and the next morning, when you wake up from their sleep by the alarm clock...... Cool, everything feels great! The fatigue accumulated the day before seemed to be fake, and the mind was clear—it was not the sick euphoria that manifested itself after being stimulated by drugs, but it was as comfortable as sleeping in a natural oxygen bar until it lost contact.

The pills individually packaged with wax pills cost six or five nats each, which is about the same as the price of a snack, which is easy for most students to accept, and if they are willing to buy in large quantities, they can even enjoy the discount of erasing zero.

It didn't take long for the popularity to spread throughout the school, with students from other colleges flocking to Ravenclaw Tower, and the common room was bustling outside the gates.

However, not everyone is capable of answering the Eagle Guard's question (and most of them cannot, to be exact), and as you can imagine, a lot of scalping ensues. Ancient Oriental politicians once listed merchants as the lowest existence among the "four people", believing that they did not produce themselves, only relied on speculation to obtain wealth, and were the moths of the state, but such ideas obviously had no market in the old capitalist powers.

Faced with the huge potential benefits, the Ravenclaw students almost immediately awakened to their flair for trade, which had been dormant in their family's bloodline since the 16th century, and began secretly selling the pills to students from other colleges. As long as you look in the middle of the dark corridors in the castle, you can basically find two or three pairs of students who are close to each other, and once the price is agreed, they will use their robes as a cover, quickly stuff coins and wax pills packed in oiled paper into each other's pockets, and then retreat separately as if nothing had happened, and their movements are as suspicious as secret service joints.

The school was initially skeptical about the safety of this so-called Qi Pill, but apart from one or two brawls that caused the sale to break down, it did not cause any safety concerns, so the professors slowly stopped paying attention to it under Dumbledore's prior instruction that he "need not interfere too much".

I'm afraid there is only one person in the whole school who knows what it is, and that's Snape.

As a Potions professor, it was also his job to check the safety of the various drugs that flowed into the school, and although he never volunteered to fulfill this obligation, Professor McGonagall had to be dutiful when he approached him with a pill and asked if there were any harmful ingredients in it.

According to Professor McGonagall's later recollection, after breaking the small black pill, the expression on Severus's face instantly became like he had seen a ghost, and he hurriedly retired after two vague "no danger". Then for several days, he did not step out of his office except during class hours, and there was a strong smell of medicine coming from the crack in the door, as if some kind of experiment was being carried out inside.

- When a nasty ghost is especially handy at times like these, you never have to worry about someone disturbing your important work out of concern for you.

……

……

Ron had no interest in the commercial revolution that swept through Hogwarts, he was only in his first year, and he didn't feel the feeling of desperately compressing his sleep time in order to study, and he didn't want to go to his best buddies through the back door knowing that it was sold out every day.

But Percy didn't think so, and when he learned that his brother was close to the legendary shopkeeper, he decided to take advantage of it without hesitation. As one of the poorest pure-blood wizard families, the price of even six or five nats was still a lot of money, but he was ambitious and didn't want to give up a reliable means of improving his grades, especially if his competitors were using it, even if it meant taking advantage of his brother's social circle.

"—Listen to me, Ron. I know he's your friend, and I didn't say I wanted to take it for free, I just need a discount, a discount that's a little lower than the current wholesale price! How about fifty ten Galleons? ”

One Galleon is equal to seventeen sicos, which is about the same price as the Ming robbery.

Probably reluctant, Percy dragged him into the corner of the common room, turned his head and looked around alertly to make sure no one could hear their conversation before adding, "Listen, Ron, listen!" You know how hard it is for Mom and Dad to send our seven siblings to school, right? I want to get a decent job as soon as I graduate so that Fred, George, Ginny – and of course you, you can have a better time in school, and I have to get the best grades for that! You know we don't have that much money, right? ”

This explicit attitude made Ron feel a little disgusted, but he couldn't deny his words, so he could only shrug his shoulders noncommittally, and his eyes didn't dare to meet him.

"Don't do that, Ron, if he really thinks of you as a friend, will he refuse this little request? Also, I remember hearing your friend Granger tell you about what weird things that Neil Wan gave you a drink on the train, right? This kind of thing should be compensated, and you can use this to make a deal with him - besides, Granger is a good girl, Ron, and loves to learn, you should be more involved with this kind of person......"

……

"—That's it. I can now understand what Fred and George thought of him, and if it weren't for my own brother, I would have punched him. ”

When Ron reluctantly finds Neil, who is sitting on the grass by the lake, staring at the water. Although Ron's presence interrupted his thoughts, he welcomed the other party with the same courtesy as ever.

This made Ron, who was still planning to bite the bullet and ask for something, suddenly lost the courage to speak.

"Don't jump to conclusions, Mr. Weasley." Neil narrowed his eyes, seeming to enjoy the breeze blowing from the lake, "You know, brotherly discord is one of the last things a person should do. Shakespeare said it very well, from "Charles II" and "Charles III" to "Henry VI" and "Henry VIII", he kept repeating this issue so much that I felt a little too moky - but! The point, Mr. Weasley, is that don't spit on your brother easily, it's scary unless you really make up your mind. ”

Ron was a little startled by the alarmist admonition, and he blinked his eyes and froze for a moment before he stumbled to speak.

"If you knew what he said about you, you wouldn't say that."

What else could he say? Believe me, Mr. Weasley, the four elements of swearing are just animals, excrement, genitals, and immediate female relatives, and as long as you get the hang of it, no mean language can hurt you—more than that, I want to know what happened to the fertilizer I gave you last time? Did you send it to Lingtang? ”

Ron sighed.

"Yes...... My mom was very satisfied, she said that the tomato seedlings in our yard had learned to roast goblins with chisels and eat them themselves......"