Seeing that the storage ring could collect bluestone, Mo Tian was relieved, so he looked down.

"It's still bluestone."

This time, even Mo Tian felt speechless. Not only did he go down, but there seemed to be bluestones extending to both sides.

"This is not a city wall, right?" Ren Fei said.

Only the city walls are built with such a large and fast bluestone, and they look so flat, most of them are city walls.

Mo Tian also lost some interest and sat down and rested secretly.

"Brother Ren, you are familiar with Xiaoye City and know some of the history of Xiaoye City. Did there ever be a city wall here?" Mo Tian asked.

Ren Fei thought for a while, then shook his head: "I don't know either. Maybe there was a city here a few hundred years ago."

Mo Tian took a break for a while, then continued to do something, and soon dug out another bluestone. After Mo Tian put away the bluestone, bluestones appeared on both sides.

"Brother Mo, aren't you giving up?" Ren Fei said. Seeing Mo Tian take action, he couldn't be idle, so he had to come forward to help.

"These bluestones are good, I'm going to move them back to build a house." Mo Tian said with a smile.

"It's good, but Brother Mo, how many pieces can the storage ring on your hand hold?" Ren Fei said.

"If you can install a few pieces, just install a few pieces. I set up a magic array and dug such a big hole. If I don't get anything, I will not be willing to leave like this." Mo Tian said.

"So, these bluestones are harvests." Ren Fei looked at Mo Tian incredibly, thinking that Mo Tian's idea was really unique.

The pit continued to expand, and Mo Tian dug out more than a dozen bluestones in one breath. These bluestones were about the same size, and even if they were buried underground, they were closely connected to each other.

Finally, Mo Tian's storage ring was filled, then he jumped up, took out the bluestone and threw it into the mud outside the space.

Then Mo Tian jumped down again and continued to dig out the bluestones. He also said with a smile: "With these bluestones being built, we don't have to worry about not being able to get up."

Ren Fei didn't want to dispel Mo Tian's enthusiasm, but he still said, "That Wind Tear should have left. I think we are safe now. Why don't we go up there? We can go up there without these bluestones."

"No, no, maybe as soon as we show up, the wind-torn sling will appear again. I dare not take the risk. It will be too late to regret it if I die." Mo Tian said as he put away another piece of bluestone.

"But how long should we stay here? Although there is a barrier that blocks the mud, I still feel a little bored." Ren Fei threw the mud and gravel that had just been dug out aside, and he really didn't want to dig it anymore.

"It should be much stronger now than before, and it is full of spiritual energy. If Brother Ren is tired, you can practice with peace of mind." Mo Tian said with a smile.

"I'm idle, I'm embarrassed to watch you dig here."

Ren Fei shook his head with a wry smile, but he still tried to continue digging.

The two have not known each other for a long time, but after experiencing the crisis of poisonous smoke and the threat of wind-torn swords, they are truly sharing hardships, and they speak a lot more casually and kindly at this time.

Soon, Mo Tian climbed up again and the storage ring was filled with it.

"If it was really a city wall, I would admit it, but I felt that there must be something underneath, and the spiritual energy was getting more and more abundant. I would not believe that there was no good thing below. Even if there wasn't, I would not be willing to leave like this. So even if there was no road ahead, I would have to walk a distance hard." Mo Tian said.

Hearing Mo Tian say this, Ren Fei nodded and stopped talking about leaving. In fact, if you think about it carefully, it is indeed a bit strange here. Maybe there is no spirit stone ore vein, and maybe there are other good things.

So the two of them kept digging, resting when they were tired, and taking pills when they were hungry.

In this way, the big holes underground became bigger and bigger, and as the size of several houses were as big as that of them, they naturally collected a lot of bluestone.

During this process, Mo Tian was also worried that the mud above would leak out, so he arranged two more magic arrays.

"Actually, it's good to practice here. There's so much spiritual energy. Maybe I'll be able to produce ground flowers soon, but the swamp above is too annoying and boring. You said that after we go up, we'll find a way to clean up the swamp, and then build a few yards here, and it's good to live in seclusion here and practice here." Ren Fei said.

"If there are really good things here, what you said is not bad. Didn't you say that you had started a sect and established a sect before? You can also develop here slowly. However, if there are really good things here, once they are exposed, someone will come to snatch them. Even if there are no treasures, it is enough to attract many people, just that there is enough spiritual energy." Mo Tian said.

"Yes, but don't say that, the more you go down, the more spiritual energy you become. If there were no spirit stone veins below, what would it be?" Ren Fei said curiously.

"Who knows, no matter how much I say now, I will be guessing. You will know when I find the source." Mo Tian said as he hugged a bluestone with both hands and exerted force. The bluestone moved slightly.

Then a stream of extremely rich spiritual energy erupted like an airflow.

Mo Tian was shocked and quickly moved the bluestone to its original position, and the erupted spiritual energy returned to normal.

Mo Tian looked at Ren Fei and found that Ren Fei was also staring at him.

"The spiritual energy just now?" Mo Tian said.

"I felt it, it was very rich, very rich, and I didn't need to concentrate on feeling it. It was so clear that it almost became a state of airflow. What would happen if we practiced in this environment for a long time?" Ren Fei was obviously excited when he said this. He took a deep breath, as if he wanted to suck all the spiritual energy around him into his stomach.

"I haven't tried it, either. I think I'll keep getting stronger without deliberately practicing." Mo Tian said.

Mo Tian was also shocked, and he secretly calculated in his heart that the spirit gathering array arranged with his current strength would be placed in an ordinary area, and its power would be increased by a hundred times, provided that there was not so much spiritual energy to gather the spirit gathering array in the ordinary area.

"Come on, let's move this bluestone away together." Mo Tian said.

"Isn't it enough to just put it away?" Ren Fei said.

Mo Tian shook his head: "No, the spiritual energy is too strong, I'm afraid of causing some unnecessary trouble."

Next, the two of them took action together, and the bluestone was slowly moved away, and the rich spiritual energy erupted again.

"A hole." Mo Tian looked at it and said.

"What's inside?" Ren Fei asked hurriedly.

"I can't see clearly." Mo Tian shook his head.

In fact, the space where the two of them are in is very dark. If they weren't for the luster emitted by the magic circle barrier, they would have been blind.

Although both of them are innate and can see things as long as there is a little light in the darkness, they are not as strong as electricity generated in the void, not to mention that this is more than ten meters deep underground, so no light source exists.

Even if Mo Tian activates his perception to the extreme, he can only see darkness.

"Light the torch." Ren Fei suggested.

"This is underground and it may not be ignited. It's better to try other methods."

Mo Tian said as he sacrificed the flying sword.

I saw the flying sword emitting sword light illuminating the surroundings, and then slowly rushed towards the entrance of the cave.

There was darkness in the cave, silent and silent. Mo Tian activated his flying sword to extend it, and he saw the empty space.

"How is it?" Ren Fei asked.

"I can't tell anything, it seems to be a house." Mo Tian said.

"A house, there were really buildings here before, but for some reason it sank to the ground. Should we enter and take a look?" Ren Fei said.

"Of course I have to enter. I don't care whether this place is a house that sinks into the ground or not. I only know that the spiritual energy here is very rich. Brother Ren, you go in first." Mo Tian said.

"I." Ren Fei looked at the entrance of the cave and was a little scared, but he still said with a thorn in the air, "I'll go in and take a look first."

Ren Fei said as he took out a night pearl, and the space around him became brighter.

Mo Tian looked at the other party speechlessly: "If you have this thing, you won't take it out sooner."

"I forgot." Ren Fei felt a little embarrassed, and then jumped into the entrance of the cave.

Then Mo Tian also walked in, walked a few steps casually, and then squatted down and touched the ground. Mo Tian was sure that it was in a house.

“There is a door here.”

Ren Fei, who was walking in front, spoke and then slowly pushed the door open.

Widths of light fell from the crack of the door, illuminating the entire room.

This time Mo Tian could see clearly in the room. It was an ordinary room with some decayed debris, and there was no precious thing to see.

Ren Fei had already pushed the door open completely. Although it was still dark, it was bright enough for Mo Tian.

Seeing Ren Fei walking out, Mo Tian thought for a moment, then turned around and moved the bluestone and blocked the hole.

Walking out of the room, Mo Tian saw a street and Ren Fei who was standing still.

Without looking, Mo Tian knew that the other party was in a daze.

In fact, Mo Tian was also shocked!

There is actually a city below the ground. Do you think it is shocking or not? The most important thing is that this city does not seem to be buried in the ordinary sense.

Because the buildings here are clear, the streets are neat, the houses are almost not collapsed, and the most important thing is that there are high altitudes here.

A bloody moon hangs from the sky.

"How is this possible?" Mo Tian couldn't help but say, and looked up and walked forward involuntarily.

"Yes, we just went deeper into the underground for more than ten meters. The buildings here are more than ten meters, let alone the sky is not visible." Ren Fei turned his head and said, still with a shocked expression on his face.

"The barrier is similar to the barrier of Canglan Realm, but the sky here is darker, it's simply night." Mo Tian said.

After all, Mo Tian had been to Canglan Realm, so he quickly thought of this and naturally thought that this was the same situation as Canglan Realm.

"Only you disciples of the sect can enter a barrier like Canglan Realm to practice. We wandering cultivators can only be jealous." Ren Fei sighed.

"After I go out, I recommend you to enter the Zhoutian Gate to practice." Mo Tian said with a smile.

"Thank you, but let's take a look at the situation here first. Such a big city belongs to both of us. I'm so excited to think about it." Ren Fei said.

"I'm really excited, but I hope there is no danger. Also, even if there is a city here, there is a reason why there is such sufficient spiritual energy." Mo Tian said.

The two walked to the street. The spiritual energy here was a little richer than in the room, and Mo Tian's breathing was affected.

However, Mo Tian absorbs a lot of spiritual energy every time he breathes, and this is still the case without formal practice.

"The spiritual energy here is much richer than that in Canglan Realm, and even the Zhoutian Gate is far from comparable. It's strange. If you can practice here for a long time, then your strength will definitely improve by leaps and bounds." Mo Tian muttered.
To be continued...