Master, you go first!

A few big words "No. 160 in the world..."

The ones behind are invisible and buried in the soil.

Seeing this, Gu Jiu said, "There are still some down there, buried in the soil."

"Dig." Shen Nian didn't say anything, just said one word, picked up the guy and started doing it.

Lu Rui also helped dig up, and the two who had not built the foundation stood aside, just like cheerleaders.

The two of them dug quite quickly. After all, Lu Rui's punch was so strong that he could create a one-meter hole.

In the time it took to touch a stick of incense, the entire front of the stone wall was leveled and lowered by three to four meters by continuous excavation and bombardment. After digging out the stone layer underneath, it turned out to be a large flat surface made of a material similar to black jade. It was very strong and could not be broken even by a foundation-building practitioner.

The entire arched stone wall just now was semicircular, with two rows of words written in the middle. Gu Jiu read out one by one,

"No. 166 in the world"

"Elementary Immortal Cultivation Training Base"

The characters are arranged vertically. There is a stone door in the middle of the stone wall, and the characters are arranged on the right side of the door.

There is also an inscription embedded in the stone wall on the left. The text was much smaller, so Gu Jiu stepped forward and read it carefully.

"The training base for cultivating immortals in Hailing City in southern Daxia. This base provides training for junior cultivators. It can train five people at a time. It is divided into three levels of secret realms: ordinary, medium and difficult.

Ordinary-level secret realms are automatically generated once a year and open half a month. By exploring the secret realm, you can kill the medicine-keeping monsters to obtain the elixir. The elixir must be no more than a hundred years old. By killing the master of the secret realm, you can obtain rewards such as century-old elixir or primary magic weapon.

The intermediate-level secret realm is automatically generated once every three years and opens in one month. By exploring the secret realm, you can kill the medicine-guarding spirit beast to obtain the elixir. The elixir is no more than a thousand years old. By killing the master of the secret realm, you can obtain rewards such as thousand-year elixir or primary enchanted magic weapon.

The difficulty-level secret realm is automatically generated once every ten years and takes two months to open. By exploring the secret realm, you can kill the medicine-guarding spirit beast to obtain the elixir. The age of the elixir should not exceed ten thousand years. By killing the master of the secret realm, you can obtain rewards such as ten thousand-year elixir or intermediate magic weapon. "

Gu Jiu exclaimed, "Oh, I found that the entrance to the dungeon is now available, and there is a difficulty level to choose from."

"Master, what level of elixir can be refined from the Ten Thousand Years Elixir?"

"Only those in the heavenly and holy levels will use it. It's expensive, starting with tens of thousands of spiritual stones, and generally no one is willing to sell it. At this age, the elixir is no longer a simple elixir, but a human being. "

"Oh. That's a good thing. I have to study how to open this secret realm."

Gu Jiu came to the door to observe. There are three puzzle pieces on the stone door corresponding to the words "Normal, Medium, and Difficult" written above the puzzle pieces.

The normal and medium puzzles have white dots and black dots on them, while the difficult puzzles have hexagram numbers and two hexagrams.

Gu Jiu looked at the puzzle pieces carefully and seemed to understand, the ordinary Hetu, the medium Luoshu, the difficult innate Bagua and acquired Bagua.

This is very reasonable, mainly because he knows how to do it.

Gu Jiu started fiddling with the first puzzle piece, just like the Huarong Dao mini game. After a while, a river map appeared in front of him.

Sure enough, the puzzle was completed. The black and white dots on it flashed, and the entire picture was divided into two and spread out parallel to both sides, with five grooves appearing in the middle. The size of the groove is like the size of a spiritual stone, which may be used to place the spiritual stone to open it.

He did not place the spirit stone immediately, but ran to the second picture and continued to fiddle with it. When Luo Shu was formed, the situation was the same. After the two sides were unfolded, fifteen grooves appeared in the middle.

Well, this is very reasonable. He Tu's number is five, and Luoshu's number is fifteen. At this moment, he was curious about what would appear in the third picture.

He continued to operate the third picture. After a while, the two Bagua of Xiantian and Houtian appeared. The left and right sides were also divided into two and unfolded. Four grooves were arranged in the middle. There were two grooves under each Bagua. This time the grooves were larger. , like a middle-grade spiritual stone.

Again it makes sense, one hexagram and two rites correspond to two numbers, and two hexagrams equal four.

It turns out that the normal level requires five ordinary spiritual stones, the medium level requires fifteen, and the difficult level requires four medium-grade spiritual stones.

"Hahahaha!" Gu Jiu lost his composure again.

"..." Xu Yuhong covered his face again, this guy's silly smile was terrible.

"How is it, old friend?" Shen Nian asked expectantly.

"Absolutely figured it out."

Gu Jiu explained his speculation to the three of them. All three of them nodded, but two of them didn't quite understand what it meant.

"So are we going to try to go in now and see? What level can the four of us get into?"

"What realm do you think this secret realm is?"

"I don't know either. The primary training in ancient times does not correspond to our realm."

"Well, it's really difficult to choose. If it's too high, it might be dangerous for us to go in."

"Master, can you use the year of the elixir to calculate the realm of the elixir-keeping monster?" the smart Ah Jiu said.

Xu Yuhong slapped his forehead and said, "Yes, for elixirs that are within a hundred years old, the beasts that guard the medicine are generally monsters that have formed a demon core for a short time, which is equivalent to the cultivation level around the foundation period. Those that guard the elixir for a thousand years are probably monsters that have formed a demon core. , which is equivalent to the elixir-forming stage. Those who guard the ten thousand-year elixir may be in the realm of demon kings, and their strength is almost that of our Nascent Soul stage."

"Wow, then we can only enter the ordinary one."

"It should be so. If my cultivation level recovers, I can take you to a medium-sized one." Xu Yuhong said.

"Then do we want to go in?" Lu Rui was eager to give it a try.

"It opens once a year. Why don't we go back to the sect to discuss it. After all, you said you can enter five people at a time. Don't waste the quota. Let the sect master arrange two more disciples to be with you. I won't go. I'll leave it by chance. Give it to you young people." Xu Yuhong said.

"Okay, let's go back first." Gu Jiu felt that Old Xu was more thoughtful.

……

The main hall of the sect. It was very quiet at night. Ji Chuxue sat in the main seat, half-lying lazily and leaning on the armrest, holding her chin in one hand and reading a book in the other. There were more than a dozen oil paper lamps lit in the main hall, and the light was quite bright.

Xu Yuhong and others returned to the sect and landed directly on the main peak. Walking into the hall, oh, the sect master looks like this, which is rare, and he is a little surprised.

"Senior Brother, are you coming to see me so late? Is there something urgent?"

"Ahem, it's not very urgent, but it is very important." Xu Yuhong coughed twice.

Then, he told Ji Chuxue everything about his discovery of the ancient secret realm today.

"I want you to pick two more disciples and go with these three people to have a look. Only people from our sect can go to the secret realm this time, and we are not afraid of trouble from other sects."

"Senior Brother, aren't you going? Maybe it will be good for you too." Ji Chuxue still hoped that Xu Yuhong could recover his cultivation.

"I'm not going, let the disciples go, take your time with your cultivation, don't rush it."

"Okay." Ji Chuxue felt a little lonely, "Then let Lingfeng and Baidian Peak send their disciples, just to build the foundation. The eldest disciple of Brother Lu from Jianfeng is in seclusion to build pills."