Trying his best to suppress the surging mood, Fu Yun lit the paper cannon and came to the transparent stone wall.

The structure of the paper cannon is very simple, it is a medium-grade rune paper full of runes and spirit patterns, rolled into a round tube.

With the input of aura, the sturdy charm was activated first, and the originally soft barrel immediately became hard and strong as metal.

Rumble!

A large purple flower burst out of the cannon barrel, instantly passed through the transparent stone wall, and then passed through the Dan Pharmacy, and disappeared into Fu Yun's field of vision.

Fu Yun couldn't help but be stunned.

What a situation!

The flame flowers of the Purple Fire Talisman have been strengthened by the paper cannon and become much larger, and the range has increased several times.

One didn't control it, and it was overdone.

The purple flame burst into the main hall, and the surging flames surged like a wave. When the purple heat poured back into the Dan Pharmacy and slammed towards the transparent stone wall, Fu Yun saw the power of the paper cannon clearly.

It's too fierce!

How much does this have to sell for?

Fu Yun, a guy who is greedy for money, the first thing that comes to mind is not how many demon beasts this thing can kill, but how many spirit stones this paper cannon can sell.

But he really doesn't know how much it can be sold, but it is estimated that Zhou Ning should know.

Fu Yun thought about finding Zhou Ning quickly, and then thought that he should go to Feng Qingyu, finding her was equivalent to finding Zhou Ning.

It seems that this hot Qingyu senior sister has the final say.

Fu Yun made up his mind, immediately packed up his things, and walked out of the mysterious room.

There will definitely be no demon beasts in the main hall, and after the fire just now, all the demon beasts have to be burned to death.

Until now, the entire cave was still hot and a little roasted, so Fu Yun had to rain a little to cool down.

The cave should be fine, because the early warning formation did not alarm, and nothing should come in.

Even so, Fu Yun didn't dare to be careless, cautiously walked into the cave, looked at it, and was indeed fine.

It's still very easy to use this array, and I will make more use of it in the future.

However, the array disk is easy to use, but unfortunately it is a one-time consumable.

Once the formation is arranged, it will become a broken formation and cannot be used.

Fu Yun thought, it is still affordable to form a formation, and it can be set up repeatedly.

But at present, Fu Yun doesn't know the formation, and he can't use the formation flag to set up the formation by himself, so he can only make do with the formation plate first.

We are not short of money now, so it is interesting to buy some small plates.

He came out of the cave and was about to block the big rock and leave, but after thinking about it, he was still not at ease. simply arranged a psychedelic array and an early warning array with a array plate at the entrance of the cave, and then safely blocked the entrance of the cave and left.

The formation on the early warning array plate was arranged at the entrance of the cave, and the base of the array plate was still in Fu Yun's hands, and he could know whether someone or demon had broken into the formation through this thing.

If something breaks in, the base can be sensed thousands of miles away, which is very convenient.

Fu Yun was very satisfied with his arrangement, turned over and flew to the market in a new shuttle boat.

"How much can paper artillery be sold for?" Fu Yun said this sentence many times along the way, and before he knew it, he had already flown to the vicinity of the Drunken Moon Tower.

I got off the shuttle boat and entered the hall on the first floor, and this time I didn't need to be greeted by the shop guy and went directly to the second floor.

The shopkeeper has also learned well, and when he saw that it was Fu Yun again, he didn't move forward.

In front of the door of the box on the second floor, he raised his hand and was about to knock on the door, but the door opened automatically with a "squeak", and it was not someone else who opened the door, it was Zhou Ning, who was the most proficient in spirit runes.

There were still two people sitting in the room, one was Feng Qingyu, the God of Wealth, and the other was the owner of the bookstore Chen, who had less words.

Boss Mi is not here this time, it seems that he is busy in the back kitchen, and it is right to think about it, after all, it is not far from eating.

Fu Yun thought about selling the paper fire talisman quickly, and he had to go to the bun shop to meet Senior Sister Luo.

"Succeeded?" As soon as he entered the door, Zhou Ning couldn't wait to ask.

Fu Yun was not in a hurry to answer, but walked slowly to the table and pulled a chair to sit down.

Zhou Ning's cheeks twitched.

This thin man with no conscience, when he got the book of the evil venerable, he swore that he would sell me the paper cannon as soon as possible, but at this time, he tilted Erlang's legs, and he looked like he was going to sit on the ground and raise the price.

"Well, I'm glad I didn't lose my life. No longer selling Guanzi, Fu Yun directly took out the paper cannon and put it on the table.

Feng Qingyu didn't grab it this time, she has never been an expert in this area, in case the operation is not good, she will not plan to ask for this box.

Zhou Ning deserved to be an expert in talisman making, picked it up and observed it for a while, and then used the aura to test it slightly, just activating the spirit rune, but not emitting purple fire.

"Great! Brother Fu, how did you do it, let's say you'll sell it to us first." ”

Zhou Ning's hands trembled a little excitedly, and he clutched the paper cannon tightly and didn't let go, for fear that Fu Yun would have to go back again.

Hey, as for it, the dignified talisman master was so excited to see a paper cannon made by a novice.

Fu Yun knew that Zhou Ning's talisman level was very high, even if it was a high-level spirit rune or even a second-order spirit rune.

Besides, if the people of the Penglai Immortal League want to rob it openly, he will definitely not be able to stop it. However, for now, this organization is still more principled, and it should not rob him of something from a newcomer in the Qi refining period.

"This success is all due to Mr. Zhou Ning's help, I must sell it to you first, as for the price, you can just look at it. When Zhou Ning heard this, he couldn't help but nodded.

This source has a bit of a conscience and has fulfilled his previous promise.

As for the price for him to set, in fact, Fu Yun can't afford to lose. If Fu Yun sets it himself, he really doesn't know what price to set, and in the end, he still has to ask Zhou Ning about the price, and sell it to him directly to know the price.

"Wait a minute!"

Zhou Ning looked at Feng Qingyu, and he still had to ask the senior sister for instructions when using the organization's money.

"Just look at it, don't lose your little brother. Senior Sister Qingyu smiled charmingly, and didn't seem to care about money at all.

Uh, it's the little brother again.

Every time Fu Yun heard this word, he felt a tingling in his scalp.

Forget it, for the sake of the spirit stone, the little brother is the little brother, it is better than no little brother.

"This ...... How about we buy it at the price of a high-grade spirit stone?"

Zhou Ning asked Fu Yun this sentence, and at the same time, he was discussing with Feng Qingyu.

Fu Yun didn't answer immediately, but Feng Qingyu gave a word first: "As long as the little brother doesn't feel a loss, then it's no problem." ”

"Thank you so much! In this way, I will give each paper cannon a second purple fire talisman, which is a little bit of my heart. Fu Yun said happily.

The reason why the paper artillery was able to be so successful was actually half of the credit for Zhou Ning. The Purple Fire Talisman was invented by Zhou Ning, and the book of the Evil Venerable was also borrowed by him, and the work that Fu Yun did was actually to combine these things, and then make the paper cannon change from an idea to a reality.