"That's right, it's the kind of forged silver that can be blended into any metal, and is extremely extensible, and can amplify energy."

The old man said with a smile.

During the second period, Chu Nan and Aya were already transmitting sounds, and from where she did, they also knew the use of this thing, the use of this thing is really too big, although there are a lot of this thing on the mainland, but it is in short supply, mainly because there are many people who need this thing.

Thousands of forged silver, can be smelted with any property, any material of metal, the extensibility of this material and his amplifying energy attributes, is deeply loved by many people, whether it is refining or refining some equipment, it is the best choice.

"I need this."

Aya said excitedly.

When Chu Nan saw this, he really shook his head, he really felt a little helpless, Aya was really in a hurry, if he wasn't so anxious, he was sure that he could bargain with the old man, but it was really a little difficult to get it like this.

In fact, as soon as the words came out, Aya knew that she was in too much of a hurry, because she had been looking for this thing for too long and had not found any of them, and now that she had finally found it, she was naturally very happy.

"I don't use this thing to sell, but I need you to exchange it for it."

The old man looked at a few people and said with a smile.

This man is simply a smiling tiger, always smiling.

"I don't know how to change the way of the predecessors?"

Chu Nan also smiled in return.

"An elixir."|

The old man stretched out a finger and said.

"Oh? I have a lot of medicinal materials here, third-order, fourth-order and even fifth-order, I don't know what my predecessors need. ”

Although Chu Nan smiled, he was a little vigilant at this moment, he didn't know what the old man meant when he talked about the elixir.

"Don't get me wrong, Xiaoyou, I smelled a strong medicinal fragrance on your body, so I concluded that you have been dealing with elixir for a long time, so ...... You know. ”

The old man still smiled.

"I don't know what kind of elixir my predecessors need."

Although Chu Nan is very calm now, he is vigilant, this old man is definitely not simple, just by smelling the smell on his body, he can conclude that he has been dealing with elixir for a long time, if this old man is simple, he is really a fool.

"Seventh-Order Black Crystal Grass."

The old man said solemnly at this moment, not keeping a smile.

Hearing this, Chu Nan's face changed slightly, in his own medicine garden, there is indeed such an existence as Black Crystal Grass, but this thing is definitely not that simple, it is specially used to repair soul wounds, that is, divine souls.

Could it be that this old man is injured by his soul?

"Xiaoyou's guess is right, the old man fought with people in the early years, his soul was injured, and he has not healed yet, and they are all looking for black crystal grass, and now I see hope, I want to catch him, otherwise I will die soon."

The old man said flatly, very calmly.

Chu Nan actually has some understanding of the old man, the soul is injured, it is generally very serious, it is dizzy and weak at the lightest, and it may die at the worst, it is obvious that after so many years, the old man's trauma is still not good, which shows how serious the injury to his soul was back then.

No wonder when he saw this old man, although he felt that he was very strong, he had always felt weak, and at this moment, he understood why.

"I wonder if you can exchange with me?"

The old man asked again.

"The injuries of the seniors, the small ones are really powerless."

Chu Nan shook his head, he did have the seventh-order black crystal grass, and there was more than one plant, but he would definitely not hand it over easily, the preciousness of this thing was definitely an amazing existence at the auction, because as long as there was one of these things, no matter how serious the trauma of the divine soul was, as long as it was not killed on the spot, it could hold on to it, and it could also make the divine soul be greatly repaired.

When I got this thing, it still came from Caiyun Pavilion, Caiyun Pavilion was the second force at that time, and the various elixirs in the medicine garden were really too rich, and Chu Nan was happy to die every time he saw his elixir now.

"I also know that the value of a piece of thousand forged silver can't be compared to your black crystal grass, I think you should be a magician, so let's let you find the magic spell you want in these five or six layers, and in return, I will give Xiaoyou another seventh-order magic crystal, I don't know if Xiaoyou is willing to exchange it with the old man."

The old man looked at Chu Nan and said with a smile.

At this time, Chu Nan was really a little shocked, this old man was really strong, just by looking at himself a few times, he could feel that he was a magician, and then there were these conditions he said were actually not a loss, let them choose magic spells at will, and then they could get a seventh-order magic crystal, which was very valuable in itself, plus there were also thousands of forging silver, this was really tempting enough.

He didn't know what the old man's identity was in the skyscraper, but he definitely couldn't think about it.

"It's not me who chooses the magic spells myself, they need to choose too."

Chu Nan looked at the old man with a smile, and behaved very calmly, he had already pinched the old man's blood in order to obtain this black crystal grass, he would definitely spend a lot of money, of course, he didn't dare to force too much, he was really afraid that the old man would turn his face and not recognize people, but even if he called his own master, it was estimated that during this period, the old man would be enough to kill them.

"Yes."

The old man seemed to have thought of it a long time ago, and his performance was very bland.

"Let's choose first."

Chu Nan was cautious and said at this time.

"Please."

The old man was very polite, but Chu Nan knew that this was definitely because of the Black Crystal Grass, otherwise, his strength would really not be looked down upon by him.

At this time, Chu Nan is more than thirty levels of strength, this is the time when he needs the assistance of magic spells, although the previous magic spells are very good, he has also added a lot in the library of the academy, but after all, there is still a shortage, that magician is not carrying a variety of magic spells in case of emergency.

Sweeping the entire five or six floors, Chu Nan and they got a lot of spell fighting skills, and even found a few small magic powers, they were big this time, everyone found a lot, but they also knew in their hearts, although the more these things they learned, the better, but they couldn't choose randomly, and learning too many mixed magic spells was not conducive to their future development.

As a three-attribute magician, Chu Nan could find more magic spells than each of them, after all, he needed to find three attributes at the same time, and they were only looking for one.

When the old man was looking for them, he deliberately looked at it a few times, he was really a little shocked, although he felt that this guy was a magician, but he never thought that this little guy was actually a three-attribute magician, but he was really a talented boy.

After that, Chu Nan and the others got the old man's seventh-order magic crystal, and then they got the old man's thousand forging silver, when the old man took it out, Aya was really surprised, because this thousand forging silver is really too big, I have never seen such a big one, and I really made a lot of money this time.