"Ahead is the boundary of Qingcang City. Xu Lao limped and pointed to his hand, although the injury a few days ago was completely unharmed from the appearance because of the healing pill, but the injury of a broken bone still needs a period of time to recuperate, after all, there is no blood pill of Bai Min's lineage in the outside world.

Mo Chen looked in the direction pointed by Xu Lao, it was still a boundless vast plain, and above the plain was still blue sky, white clouds and blue sky, where did Qingcang City come from.

Xu Lao looked at Mo Chen's inexplicable eyes and explained: "There are two stone tablets not far ahead, and after that, they are the boundary of Qingcang City. ”

Sure enough, not long after the group left, Mochen vaguely found that there seemed to be two stone tablets of the same height in the distance.

Walking dozens of feet ahead, I can see it clearly.

At this time, Xu Lao spoke: "Such a stone stele is also called a formation stone, and there are twenty-four of them in the entire Qingcang City boundary. ”

It turned out that there were two defensive arrays in the entire Qingcang City boundary, and the outer one was called the Boundary Protection Array, also known as the Outer Array, and the stone tablet erected in the distance was the Outer Array.

Like the two array stones in the distance, there are eight places in the entire outer array, corresponding to the eight directions, two on one side, and a total of sixteen array stones.

Each array stone is the relay point of the outer array, and the array stone draws spiritual energy from heaven and earth, and then condenses it into the energy needed by the magic circle.

In this way, the outer array could envelop the entire realm as large as possible to resist the vision of heaven and earth.

Therefore, this outer array is not only shrouded in Qingcang City, the actual scope is much larger, and it is estimated that it is about tens of thousands of zhang in circumference.

As for why such a huge formation was created, it was because although Qingcang City was large, it was still too small for the creatures in this area, so only people who were strong in cultivation or had a certain amount of power could live in the city.

The vast open space outside the city became a place for the poor and destitute, who built houses and lived here, and at the same time reclaimed large tracts of land for cultivation and labor.

Xu Lao shook his head and said: "The array city, the array city, besieging the city with the array, it is called the array city." ”

Mo Chen thought for a moment, and then asked, "Two magic arrays, then since the front is the outer array, the inner array should be wrapped around Qingcang City?"

Xu Lao smiled and nodded: "Little brother is right, the city protection array is also known as the inner array, which is mainly responsible for protecting the safety of Qingcang City, and at the same time, because the coverage area is smaller, the spiritual power is more concentrated, so the defense ability is stronger." If there is a double chaos with strong damage, the monks in the city will raise the inner array, which has ensured that the creatures in the city are worry-free. ”

Mo Chen was curious: "What if you encounter a triple disorder?"

On the side, Lin Feng said with a smile: "Little brother said that it was funny, the triple chaos order destroyed the world and destroyed the world, if it was really the triple chaos order coming, even if there were ten inner formations, it would not be able to stop it." ”

While talking, they had already walked not far from the outer array of stones.

Walking here, Mo Chen found that this array of stones was actually a behemoth, it turned out that it was because of the distance before, so it seemed to be as tall as people, and now he looked up, this array of stones was at least four zhang high, and it was covered with bronze-colored mystical runes.

At this moment, this mystical rune is constantly spewing out colorful aura, flickering and dimming, as if it is breathing, and at the same time, the aura spewed out formed a huge and incomparable light curtain, extending straight to the sky.

It's just that Mo Chen was a little puzzled, he felt that the stone in front of him, in the steady breathing rhythm, seemed to contain a different abnormal sound.

He took a closer look at this mysterious rune, but couldn't help but exclaim, this rune pattern was a little familiar, as if he had seen it somewhere.

Xu Lao seemed to see through what Mo Chen was thinking, and said with a smile: "Qingxu Sect has always been better with the emperor's family, and this is an important place for Qingxu Sect and the emperor's family, so the emperor's family let the power of Tianxuan's lineage, arrange the inner and outer two formations, and then hire countless city craftsmen, which is what Qingcang City is today." ”

Xu Lao was also slightly puzzled, since Mo Chen was a disciple of the emperor family, how could he not know about this matter.

But he just thought about it, and didn't think much about it.

What does this have to do with him, he just needs to know that Mochen is his savior, and he is also the benefactor of the Lin family, and other things are not something he can touch, and it is not his turn to care.

Knowing that Mo Chen saw the Boundary Protection Array for the first time, the three of the Lin family slowed down, and followed Mo Chen slowly to the front of the formation stone, and Mo Chen gently reached out to touch the formation light curtain.

I saw that the light curtain rippled slightly, and where he clicked, there were yellow light flashing talismans, as if flying up and down like a spirit disc, constantly floating in the air, extremely smart.

"This array of stones is always running, so who is responsible for the state of this array of stones?" asked Mo Chen's curious question.

"The array stone will absorb the aura of heaven and earth on its own, and it will be inexhaustible, and the state of the array stone will have a monk who is proficient in the formation runes, and check it once every half an hour to ensure that the array stone is intact. These monks were directly appointed by the city lord, and they were all advanced seniors. Xu Lao replied patiently.

"However, the inner formation is different from the outer formation, it does not need to be opened for a long time, so the energy required by the formation is driven by spirit stones. Xu Lao added on the side.

Spirit Graphite Dust knows that ordinary ore veins can be created by heaven and earth, and only by condensing the spiritual energy in the ore can the spirit stone be achieved.

The number of this kind of strange stone is very small, often only one spirit stone vein can appear among tens of thousands of ore veins, and every time the spirit stone vein appears, it is the object of competition from all parties.

The use of spirit stones is that they can be used to activate magic weapons and formations, and more often they become the transaction currency between high-level monks.

At this moment, there were ten spirit stones of the same size in the ink dust ring, which were specially given to him by the emperor wind chime before he participated in the trial.

Compared to the high-ranking monks, the currency traded between ordinary mortals was much simpler, and they used spiritual rice.

When the four of them were drinking before, the small bag that Xu Lao handed to Xiao Er contained one or two spiritual rice.

Because the heavens and the earth in the great world are chaotic and there are many visions, the areas outside the array city are not suitable for cultivation and life, so food is the most urgent thing for mortals and human realm cultivators.

Nowadays, within the outer array, most mortals who cultivate will choose to plant Ling Rice.

Lingmi is extremely satiety, and often mortals only need to eat ten grains of Lingmi to cover three meals a day.

On the other hand, because of their vigorous qi and blood, the human realm monks need three times the amount of ordinary people every day to have a full stomach.