I built a floating city in Hogwarts.

"Selling things?"

After hearing Levin's words, the old man immediately showed an interested expression on his face.

"Aren't you a muggle? Where are you selling these things? Don't tell me there are muggle things in there, I won't take them."

"Don't worry about who I am."Levin patted his chest carelessly,"I am also an old customer, I know your rules, all of them are products of the magic world."

"As for where it came from... we follow the rules, and you have to follow the rules too"

"I know, I don't ask where it comes from." Strachey waved his cigarette hand and muttered,"If you don't tell me, I can tell it myself."

Then he walked forward and was about to open the box, but stopped immediately.

"Oh, I didn't realize that this box is also a good product."

The old man looked at the box carefully, and stroked the lines on it with his fingers.

"This style, this processing technique, this old leather, these traces of time...wait, these traces were caused by you today! A Victorian handmade leather suitcase actually got bumped like this!"

Halfway through touching it, Strachey became annoyed by Levin's casual treatment of the antique, and glared at the boy angrily.

But the boy was obviously not afraid of him, and just said in a casual tone:"Since you cherish the antique so much, buy it quickly, otherwise it will fall into the hands of someone like me who doesn't know the value of it and be ruined."

""Humph! Of course I will buy it," the old man snorted,"but before that, I want to see what good stuff you have that you need to pack in an antique box."

As he spoke, the old man carefully opened the box buckle and flipped open the lid. Inside was a box of neatly stacked old books.

Covers made of cowhide or sheepskin, pages bound with glue and thread, paper full of gaps, and letters in classic printed and handwritten scripts...

Strachey read through them one by one and was surprised to find that most of these books had a history of more than 100 years:

《Toadstool Tales》、《Oops, I deformed my foot》、《Why didn't I die when the Augurey cried?》、《Chadwick's Magic (Volumes 1-7)》、《Beginner's Guide to Transfiguration》、《Gigli Boleyn and Hawkesbox》、《Hogwarts: A History》……

They were all wizard books, and most of them were Hogwarts textbooks from a hundred years ago, such as The Beginner's Guide to Transfiguration.》、《Hogwarts: A History of the School" and other books are revised versions a hundred years ago, and students' notes are written on them.

These books, including the Victorian boxes, were carefully selected by Levin from the Room of Requirement using the [Identification Technique].

The boxes are naturally for the convenience of packing things.

As for why a box of books was chosen, it is because Levin feels that selling books is the safest and most cost-effective.

Looking at the large garbage dump in the Room of Requirement, there are all kinds of waste placed in it.

In the case of not wanting to make it known to everyone, what Levin has to do is to transport the most valuable goods through the smallest space and weight.

This has an explanation.

First of all, of course, magic items are more valuable than ordinary items.

However, the [Repair Spell] can usually only repair ordinary items. If you want to repair magic items, you have to be proficient in magic patterns and alchemy, which Levin cannot do at present.

In this case, Levin can only settle for the second best and choose the more expensive ordinary items.

In this way, things like furniture, bottles and jars are excluded. They are large and difficult to sell.

The best-selling items are books, except for jewelry and luxury goods.

But jewelry and luxury items are not easy for ordinary people to send to the Room of Requirement.

Even if they insist on picking some out, they are not easy to sell - they may be mistaken for stolen goods.

But antique books are different.

First, antique books are relatively widespread and will not be mistaken for stolen goods, so they are easy to sell.

Second, in the world of Harry Potter, books are not cheap, and the cost performance is much higher than that of furniture.

Third, Levin has a massive database and transcription technology, so even if these books are missing pages, it is easy to repair them.

At the door of the second-hand shop,

Strachey read these old books from beginning to end, and from end to beginning again, over and over again, until Levin became a little impatient, then he looked up and looked at the boy with admiration.

"Oh, I didn't realize that you are really good at restoration."

After a pause, he continued,"We are all acquaintances, so I will be frank. Your books are restored very well, but most of them are old textbooks, so the market is a bit narrow."

"Therefore, I can only give you 8 Galleons for a book, and the box will be charged at 50 Galleons. What do you think?"

8 Galleons?

After hearing this price, Levin thought secretly that this price was actually similar to that of a new book. For example, a fifth-grade Potions textbook would cost 9 Galleons.

If these books were sold as second-hand books, then this price would be very high.

If these books were sold as antiques, the price would be lower.

However, considering that these books were shipped in bulk and it was difficult to find buyers, and that their origins were somewhat... it was not unacceptable to lower the price a little.

Levin thought about it and bargained,"I think it would be better to do this. There are 67 books in total here, and each book is charged at 10 Galleons. You can give me 700 Galleons including the box."

"A copy is selling for 10 Galleons, why don't you go grab it?" Strachey suddenly got angry.

"One copy is only 8 Galleons, you are trying to steal it!" Levin responded sharply, without any hesitation.

After the two of them glared at each other for a while, Levin said,"Hey, Mr. Abraham, you should think about it carefully. If this deal goes through, I will come to you again if I have new business in the future."

"There is also new business! ?"

Upon hearing this, Strachey's eyes lit up, and he silently calculated and nodded.

"Okay, deal, you kid. You got a great deal this time."

"If you say yes, then yes."

Levin took the dragon leather bag containing 700 Galleons and turned to leave.

Since the deal had been made, he didn't mind letting the other party take advantage of the argument.

"Until next time, Strachey, and Merry Christmas"

""Merry Christmas, Green boy!"

After walking a full hundred steps away from the junk shop, Levin's face finally showed a satisfied smile.

This time he was really rich.

Whether in the Muggle world or the wizarding world, money is of utmost importance.

He didn't want to experience the tight life during the summer vacation again.

Even if he didn't care about external things, studying magic was the most expensive thing.

Having some money in hand was good for both life and research.

With the money, the first thing Levin did was to change his entire outfit.

Wizard robes, crucibles, experimental equipment... all replaced with new ones.

He even did not forget to buy Homer a brand new cage and a bag of delicious (for the Scottish round-faced fat chicken) rat jerky.

Christmas is coming up, and he has money again, which means that Homer, who has been idle for half a semester, can also... It's time to work hard for a few days.

In the following time, he wandered around Diagon Alley, trying to find out information about the key ingredients of permanent elixirs.

The blood of the Riem cattle, the claw powder of the ocelot, the tail tip hair of the nine-tailed fox, the beak powder of the griffin, the bear paw of the bear, and the head feathers of the owl.

In the end, it was a few old acquaintances, Miss Hayden, the female clerk in the Magical Creatures Shop, and the two owners of Sluggiggs' Pharmacy who provided him with help.

As the largest magical creature shop in Diagon Alley, Miss Hayden's shop inevitably has some connection with poachers.

Miss Hayden revealed that there are indeed several groups of poachers in the East who are trying to find the mysterious creature, the nine-tailed fox, and they claim to have clear information.

Hayden didn't think that the other party could really catch the nine-tailed fox.

This magical creature has the ability to consume its tail to cast mysterious spells.

Regardless No matter how desperate the situation is, as long as one tail is sacrificed, the nine-tailed fox can escape.

And the sacrificed tail will grow back after a few decades of painting.

But as long as the group of poachers can force the nine-tailed fox to this point, it will be easy to get some tail hair.

So Levin left 50 Galleons to Miss Hayden and asked her to pay attention to the news in this regard.

As for the owners of Slughorn Giggs' pharmacy, they brought news about the blood of the Riem bull.

Although the annual output of this blood is very small, they do have suitable channels.

After all, they also have backgrounds.

"Magical Pharmacies and Potions" written by Arsene Giggs is the textbook of Hogwarts Potions, and

Horace Slughorn has been the professor of Potions at Hogwarts for 50 years (his successor is Snape).

So Levin left 100 Galleons. As a deposit, he will get a portion of Riem cattle blood in the summer vacation.

Levin was very happy to get the news of two precious materials at once.

But the remaining four are more slim.

Among them, the head feathers of the owl beast are not considered for the time being. This thing has never been a native creature in the Harry Potter world. Levin can't expect the owl beast to suddenly cross the world and come here like the water ghost. The ocelot is a famous magical creature in America.

It can walk upright and run faster than an arrow. Its eyes are said to have the ability of hypnosis and legilimens.

A college of Ilvermorny School of Magic is named after it, and its hair is also the material of the core of American wands. The claws of the ocelot are not the mainstream potion material, but since American wizards can get the hair, it may not be impossible to get the claws.

When I have time to go to the United States, I will consider this thing.

The bear is a magical creature from the East, also known as the human bear, a terrible creature that looks like a giant bear.

This thing is more from the distant East, and Levin can't do it for the time being.

The only one that looks a little easier to deal with is the griffin.

The griffin, also known as the griffon, is a magical animal native to Greece.

It is an ancient magical creature with the forelimbs, wings and head of a giant eagle, and the body, hind legs and tail of a lion. They mainly feed on raw meat and are ferocious, but skilled wizards can also make friends with them.

Griffins used to be all over Europe and were widely recorded in the records of wizards at the time, but now few people have heard of their traces.

Instead, their offspring with horses - the hippogriff (also called the hippogriff) - were widely bred by wizards as their substitutes.

But magical materials are another matter.

The hippogriff can replace the griffin as a mount, but it cannot replace the griffin as a medicinal material for spiritual medicine.

Compared with ocelots, bears and owls, the griffin is rare, but at least it is a native animal, so next, Levin decided to start looking for the griffin.