"It's so expensive or inferior, how much gold beads is the high-grade Jiuchen Yuan Breath Stone worth?"

Gu Xi's focus is once again not on the same line as others.

Zhou Yuan thought for a moment and said: "I have heard of this medium-grade Jiuchen Yuan Xi Stone, it is said that 10,000 gold beads may not be able to buy one, as for the high-grade Jiuchen Yuan Xi Stone, I have never heard of it in Xia, and I don't even know if it exists in this world." ”

"Since there is a distinction between the lower grade and the middle grade, then there is naturally a top grade, but the middle grade is so valuable, and even if there is a top grade, it must be very rare and rarely born. ”

Gu Xi is the analysis of the Dao.

Zhou Yuan said with a smile: "What Gu Daoyou said is very reasonable, it should be like this. ”

Gu Xuan asked: "Zhou Daoyou, then do you know what the purpose of this Jiuchen Yuan Breath Stone is, and why it is so precious? I think this Shangcheng city wall is indeed full of divine breath and dazzling divine light, but this should be the reason for the large array arranged on the city wall, could it be that this Jiuchen Yuan Breath Stone still has something special that we can't see?"

"Yes, yes, I just wanted to ask this question about the sixth sister. Gu Xi said busily.

This so-called Jiuchen Yuan Xi Stone Gu Xiu also doesn't know, although she was also studious in the Gu family before, but in the first ten years, she has not yet cultivated, and she is shy in her pocket, even if she wants to know more about the situation in this world, she can only find it from the classics collected by the Gu family, the Gu family is a small family, the background is shallow, and there are not many books in the family.

Later, she began to cultivate, and she was able to refine the magic clothes, and she gradually had spare money in her hands, but she was busy practicing and refining the magic clothes every day, and she had no free time, so her understanding of this world could be described as lacking.

After this trip, Gu Xiu had already decided in her heart that in the future, she would buy more classic books and scrolls, read thousands of books, and travel thousands of miles, all of which were ways to increase knowledge, and knowledge was also a part of cultivation.

At this time, Zhou Yuan had already begun to explain the special features of this Jiuchen Yuan Breath Stone to Gu Xuan and Gu Xi.

It turns out that this Jiuchen Yuan Breath Stone is not an ordinary jade containing divine breath, and the biggest difference between it and ordinary things containing divine breath such as gold beads is that it is circulated and absorbed.

"Circulation and absorption?" Not only Gu Xuan and Gu Xi were surprised, but several guards next to them who were also completely ignorant of this also came over, including Feng Shouhuai.

Because Xia Yingfeng was injured, along the way, Feng Shouhuai spent most of his time helping his sister Feng Shougui take care of Xia Yingfeng, and he had a lot less contact with the Gu family's brothers and sisters.

Gu Xiu speculated tentatively: "Could it be that this large array does not need to lose gold beads to operate, but can operate on its own for many years just by relying on the Jiuchen Yuan Breath Stone?"

"Eighth sister, you are whimsical, this big array is a huge formation at first glance, and Zhou Daoyou also said that a few predecessors in the Xuanshen period can't break through a hole, such a big array, if it can operate without losing gold beads, it is simply ...... It's just ......."

"It's cheap and good!" Gu Xuan thought for a long time and didn't think of a good description, Gu Xixian said smartly.

Gu Xiu said helplessly: "Third brother, I just felt that I read too few classic books, so I was lonely and unheard, I didn't expect that you are not as good as me, third brother, what is your description?"

Gu Xuan immediately followed and said, "That's it, third brother, why don't you describe robbing me?"

Gu Wang looked at the three younger siblings, with a helpless face, the eighth sister who felt before was a little more stable, and now it seems that the stability of the eighth sister also depends on the occasion, at the critical moment, she is indeed calm and steady, but at other times, don't say it.

"Don't make any noise, there are not many people in line before us to enter the city, take advantage of this time to listen to Zhou Dao's friendly words. ”

Gu Wang also specially told Gu Xi, "Third brother, especially you, when you return to Xianshui City, your family and your relatives and friends, if you ask you what knowledge you have gained when you go out this time, if you can't even tell what kind of material the Shangcheng city wall is and what is special about it, you won't come out in vain." ”

Gu Wang taught his younger siblings a lesson, and then smiled and asked Zhou Yuan to continue.

Zhou Yuanjue was a little funny, but he was a steady person, he didn't show anything unusual, and continued: "What Gu Xiu Daoyou said before was right......

When Gu Xi heard this, he immediately wanted to interject in surprise, but was glared back by Gu Wang.

"The special feature of the Nine Moments Breath Stone is that it has a nine-day cycle, that is, if its divine breath is exhausted, it can be restored to its original state by absorbing the divine breath from the outside world within nine days.

This city wall is all built with Jiuchen Yuan Breath Stone, and the large array on the city wall relies on the special role of Jiuchen Yuan Breath Stone to maintain the formation, and the loss and recovery time of each piece of Jiuchen Yuan Breath Stone here are different, so that the divine breath used in the formation can be maintained in the most concentrated state, and the power of the formation is always in the strongest state. ”

Since Zhou Yuan said that he had guessed correctly, Gu Xiu had guessed the relationship and principle between the Shangcheng City Wall and the Great Array, and at this time, hearing Zhou Yuan's explanation, although he was also shocked, he was not shocked.

Gu Xi, Gu Xuan and the others couldn't help but show a look of shock, "How big a project is this?" "How accurate is this calculation?"

"Eighth sister, what are you laughing at?" After the shock, Gu Xuan couldn't help but ask strangely when she saw Gu Xiu looking at the city wall alone and smiling meaningfully.

"Even the city walls are so different, it's shocking, and I don't know what the situation is like inside the city lord's mansion, but I'd love to see it. Gu Xiu couldn't help but say what she was thinking.

Gu Xuan sighed, "I also want to go and see it, but I don't know if there is that opportunity?"

Although I have a letter of recommendation from my grandfather's friend in my hand, I just don't know what the rules for the selection of new disciples by the Shangcheng City Lord's Mansion are, and whether I need to go into the City Lord's Mansion to gather, I have to inquire slowly after entering the city.

"It seems like it's our turn. Feng Shouyang said suddenly.

Indeed, the city lord He and the others in front were already talking to the city gate guards.

After the city lord and his party entered the city, it was their turn to follow them.

"Is there an invitation?" asked one of the gate guards.

"What kind of invitation? do you still need an invitation to enter the city?" said a monk, surprised, and a little nervous, they took a lot of effort to come to Shangcheng, if they were not allowed to enter because there was no invitation, it would be a great loss.

"Oh, don't worry, fellow Daoists, in a month it will be the birthday of our city lord's wife, at this time, many seniors who were invited to the city lord's wife's birthday banquet have already entered the city, and the city lord's mansion has arranged accommodation for these seniors, so I have this question...

If you don't have an invitation, don't worry, just report your name and fix it for statistics.

Taoist friends do not need to worry about accommodation, there are many inns in the city, Taoist friends can find a satisfactory place to live, there is a map of the city, Taoist friends can take a copy, so it is also more convenient. ”