After hearing this, the Wind and Fire Dao and the Red Blood Sword were extremely interested, and they all expressed their desire to see it with their own eyes. The guests insisted, and Cui Si was naturally embarrassed to disappointment. So he flew out of the city with the two of them, beckoned a five-spell flying boat to come out, and roared at the sea, which was a few salvos.

Looking at the countless splashes that had stirred up hundreds of miles away, the eyes of the Wind Fire Dao and the Red Blood Sword instantly turned red. How nice would it be to hold such a good thing in your own hands? Thinking of this, the Red Blood Sword immediately grabbed Cui Si's hand and said, "Brother, you have such a good weapon, can't you hide it?" ”

"That's it, if there are benefits for everyone to share, you have to sell us a little!" The Wind and Fire Dao man shouted: "You don't need too much, just a few hundred of them!" ”

After Cui Si heard this, he immediately cried and laughed, and hurriedly said: "I have a total of more than three hundred left, all of which are sold to you, what should I do with this Chen Tangguan?" ”

"This...."The two of them remembered this stubble, and the Red Blood Sword then hurriedly remedied: "Aren't you able to make it?" When you make a new one, sell this to us! ”

"Yes, yes, we just want the old one!" The Wind and Fire Dao people also hurriedly said.

Both of them are quite kind, and they didn't snatch the new flying boat in Cui Si's hand. But it's also normal, who wouldn't sell the latest and greatest things to others? They knew that Cui Si was reluctant, so they retreated to the next best thing and asked for these flying boats. In fact, after all, this is a treasure of the fairy family, and the flying boat is not dilapidated, and it is guaranteed to be the same as new after thousands of years, so they don't dislike it.

Cui Si thought for a while and said, "It's not that I can't sell these flying boats to you, but I have to have a request!" ”

The Wind and Fire Dao and the Red Blood Sword knew that it was not that simple, but in order to be able to obtain such a good thing, they could only ask, "What requirements?" Don't ask for too much! ”

"That's not going to happen!" Cui Si smiled slightly and said, "First of all, it's the time of delivery." In the last hundred years, I have not had the skills to do so, at least until my injuries have recovered, and these things cannot be sold to you. I'm going to rely on them to help me defend me against foreign enemies! ”

"And what about a hundred years from now?" The Wind and Fire Daoist and the Red Blood Sword hurriedly asked.

"Naturally, there will be no problems!" Cui Si smiled and said, "How about selling at least a hundred of each of you?" ”

"Okay, happy!" The Wind and Fire Dao man immediately said excitedly: "Interesting! ”

"Haha, good brother, it's not in vain that we will come to save you when we get the news!" The Red Blood Sword also laughed and said, "Ah, by the way, how can this price be calculated?" ”

"Hehe, that's my second request!" Cui Si smiled and said, "I don't need top-grade immortal crystals, and I don't need materials, as long as you provide enough immortal five spells!" ”

As soon as they heard this, the Wind and Fire Dao and the Red Blood Sword suddenly lit up, and hurriedly asked, "Is this true?" ”

"There is no falsehood!" Cui Si immediately said: "I can sell it to you at a preferential price!" ”

"What's the price?" The Wind and Fire Daoist hurriedly asked.

"A flying boat of 1,200 zhang, take away a trillion immortal five spells, and a flying boat of 1,500 zhang, take away a hundred trillion, this is not much!" Cui Si said lightly.

The Wind and Fire Dao and the Red Blood Sword glanced at each other, and then secretly thought about it, and suddenly had a number in their hearts. The Red Blood Sword frowned and said, "The price is okay, I can accept it." It's just that there are too many five spells, so it's hard to get it? ”

"yes, can I change it to something else?" The Wind and Fire Dao people also asked.

"Of course not, only five spells will be accepted!" Cui Si then smiled and said, "Don't feel that you are at a loss. Let me tell you, the cannonballs of these five spell flying boats, as well as the supply of immortal energy, all cost five spells, so you will inevitably consume a large number of five spells in the future. Now hurry up and make a Dharma gathering platform, and make sure that you won't suffer a loss when the time comes! ”

"Ahh I see! "The Wind and Fire Dao and the Red Blood Sword suddenly realized.

Then the two of them said together: "Okay, it's decided!" A hundred years later, we will take the goods with the five spells, you don't have to be unable to take out the flying boat by then, then we won't do it! ”

"Haha, how so?" Cui Si smiled: "You can rest assured!" ”

"Haha, that's pretty much it!" The Wind and Fire Daoist and the Red Blood Sword immediately laughed. Then the three of them high-fived and swore an oath, which was considered to be the deal.

In fact, the reason why Cui Si was willing to sell the Five Spell Flying Boat to them so happily was nothing more than to squeeze their labor force and obtain a large number of Immortal Five Spells from them. You must know that the flying boats that Cui Si wants to build in the future are all large flying boats of more than 5,000 zhang, and the number of five immortal spells required is too terrifying, and it may be difficult to get together one Chen Tangguan, so he will pull these two into the water.

The Wind and Fire Dao and the Red Blood Sword were very happy to get Cui Si's assurance, and they felt that Cui Si was a person who could be friends, so they deliberately circled for a few days to make sure that the demon clan would indeed not call, so they left one after another.

After sending away the Wind and Fire Dao and the Red Blood Sword, and temporarily solving the threat of the demon clan, Cui Si finally breathed a sigh of relief. He immediately ordered the resumption of production, the construction of the city wall, the construction of the dragon cannon, the construction of the flying boat. Everyone has to move and strive to get these things out as soon as possible, and then it will be equivalent to completely solving the threat of the demon clan.

Of course, Cui Si didn't care about the production matter, and just let Feng Xi do it. And Huang Jixiang doesn't care about this, he now communicates with that group of subordinates all day long, eating, drinking and having fun every day, and has a very nourishing life. Even Cui Si is not as good as him, poor Cui Si is still recuperating from his injuries, and he can't be too strenuous to move.

In the blink of an eye, more than a year has passed, and the construction of the 10,000-mile city defense of Chentangguan has finally been completed. This is the most powerful and perverted city defense in the Four Seas Dragon Realm. The whole body of the city wall is mixed with iron mother and other immortal cultivation materials, and after special processing and refining, it is very hard, below the earth immortals, and it is difficult to hurt a bit.

Not only that, but there are also a large number of rune prohibitions and protective formations on it, which further enhances the protection of the city defense. With the blessing of the immortal qi provided by the more than a dozen super dragon veins behind Chen Tang Pass, the entire city wall became impregnable.

In terms of protection alone, such a city wall, even if Da Luo Jinxian came, he would do nothing, and he couldn't break it with all his might. Only the Mixed Yuan Golden Immortal could break it. But an immortal at the level of a mixed yuan golden immortal, I'm afraid no one would be bored enough to attack the city wall!

In addition, this thousand-zhang high city wall is also divided into dozens of layers, and the height of each layer is separated by ten zhang, leaving more than a hundred zhang of space, which is enough to place a large number of dragon pattern cannons. Fortunately, the city wall is 100 miles thick, so there is enough space. Even if it is shrinking layer by layer, at the top layer, it is two or three miles wide, which can prevent special dragon pattern cannons and a large number of guardian soldiers.