Seeing that the girl was frightened and plucked up the courage to catch up, Chu Yun couldn't help but feel a little interested.

"What are the unique alchemy products you are talking about? Chu Yun stopped and turned around and asked.

Seeing this, the girl hurriedly took out a map from her backpack and replied: "This is the magic net map, which is different from ordinary maps, as long as the practical spiritual power is activated, you can mark your location on the map, which is very practical and don't worry about getting lost!"

"Kind of interesting, let me see. Chu Yun took the map and tested it.

The principle of this map is very simple, it uses the key points in the magic net as nodes to locate and establish a coordinate system, and then obtains the corresponding coordinates when the magician uses mental power to connect to the monster to determine the relative position on the magic net map.

It can be seen that this alchemist named Lysa has made Black Rock City one of the key nodes, and two other nodes are also in a large city with a large number of densely populated magicians.

"This positioning is a bit inaccurate, isn't it?" Chu Yun quickly discovered the problem, although he did locate himself in Black Rock City, but the accuracy was at least a hundred meters behind.

"This is Miss's unfinished work, and the accuracy is really not high, but it is enough to use in the wild, and the location can be quickly identified with the marks on the map. The girl was afraid that Chu Yun would not be satisfied, and hurriedly explained.

Chu Yun shook his head, most people still walk in the wild with a purpose, and with the sun, moon and starry sky positioning, experienced adventurers generally won't get lost.

It may only be used to travel to unexplored danger zones, and even more deadly, this magic web map needs to be connected by a mage to locate it, which is meaningless to the average adventurer.

"How much does this map cost?"

Although Chu Yun was not optimistic about this map, this map was simply tailor-made for Chu Yun. He is not familiar with the mainland and basically cannot read traditional maps, so it is much more convenient if he has a positioning device.

"Five, fifty gold coins. The girl said with some embarrassment.

"Hiss~" Even if Chu Yun is not short of money now, he was frightened by this price.

He couldn't estimate the cost of this map for two gold coins, but if he sold it for five gold coins, he would consider it, and fifty gold coins would be a robbery.

"Miss Lysa said that the research and development cost of this map is very high, so it is necessary to sell it at a higher price at the beginning to recover the cost......"

"And how many copies have you sold?"

"One...... A ......"

"Uh, who bought it?"

Chu Yun estimated that this one should be purchased in friendship, could it be that people in this world really have so much money that they have nowhere to spend it?

"A ...... Haven't sold it yet. The girl said with some embarrassment.

"Farewell. Chu Yun turned around and left without looking back.

The girl hurriedly caught up and continued to speak: "What's more, Miss has also developed flying wings that can fly!"

Chu Yun's footsteps stopped again, there was no way, what the other party said in his mouth really interested him.

"How many copies of this wing-wing are sold?" but this time he was a little wary of asking about sales first.

"This, it's still being studied, and Miss has no money now. And I've heard from the young lady that if you can have the skin of atmospheric creatures as a material, you can even levitate in the air for a long time. ”

"Now I use the skin of a flying squirrel, although I can't levitate, but I saw Miss jump from the mountain with my own eyes, it's okay! I can promise you with my life!"

"I just saw your auction and heard the appraiser's introduction, so I wanted to ask you for help. It's not just about looking for you to invest. ”

"Flying Wing, this one sounds pretty interesting. "Chu Yun himself still left a lot of thunder ray skins for backup, maybe you can try it?

For Chu Yun, the value of the flying wing is very high, not only in the use of the real world, but also in the mirror world.

"Where is she? Not far from here?By the way, what is the family name of your young lady?" Chu Yun continued to ask.

The girl felt Chu Yun's wishes, a little surprised and a little worried, but she still said frankly: "Miss, she is the daughter of Viscount Carl. ”

Hearing this name, even Chu Yun couldn't help but be startled.

Viscount Karl was a cold-blooded and brutal lord he had met in Rock Town, and his Tiflin butler was a creepy monster. Born in such a family, it is indeed commendable that Lysa dared to run away from home.

"The lord actually cares about the young lady very much, although he doesn't let anyone help the young lady, but when someone wants to hurt the young lady, there will always be someone who secretly solves them. ”

"You are a noble magician, and it will be no problem if you just buy and sell goods normally. ”

Carl recently went to Rock Town to deal with Shivana's affairs, and he shouldn't be back in Blackstone anytime soon.

Even if he returned here, Chu Yun, who had the ability to enter the mirror world, was not afraid of him. And as the girl said, Carl wouldn't have to trouble himself for such a trivial matter, otherwise those magic shops would not have dared to sell anything to Lysa.

"I'll take you to Miss, as long as you provide the materials, Miss will be willing to help you make a flying wing for free. ”

Chu Yun finally decided to take a look, a magical equipment with the ability to fly was not a small temptation for him. If you switch from the army to the air force, if you rely on magic, I am afraid it will take a long time.

Chu Yun took the girl to his carriage, and the girl looked at the mirror in the carriage a little strangely, the other party did not look like a person who liked makeup.

"This is the mage's meditation tool, where is your young lady's workshop?" Chu Yun didn't care that the decoration in the car was noticed, the magicians in this world had a bit strange personalities, and this little hobby was not worth mentioning.

The girl said with some embarrassment: "Slum ...... In order to save costs, the lady's workshop was temporarily set up in the slum. But don't worry, the slums are safe and clean now. ”

Since Lysa entered the slum area to open an alchemy workshop, the security level in the area near the workshop has increased several times, and Black Rock City has also sent additional personnel to deal with environmental sanitation.

The normal inhabitants of the slum were grateful to Lysa, and the outlaws were running away.

When Lysa first arrived, she was approached by an unsightly underground force to collect protection money, and the leader and management of that force were all beheaded and hung at the entrance of the slum that night.

Only then did everyone understand that this Carl was a tsundere, and he said that he would kick her out of the house and cut off the father-daughter relationship. But whoever really takes this seriously is a fool.

The slum is located on the outermost part of the eastern part of Blackstone City, and Paimon speeds up to reach the slum before the sun goes down.

Unlike the prosperity seen before, the buildings in the slums are somewhat similar to those in Rock Town. The inhabitants here do not have the hard but happy look on the faces of the residents of Rock Town.

These inhabitants seem to see no tomorrow, and their eyes are dark.