On the weekend, Mu Qinghan went to Lingnan City alone.

The train is moving on the tracks at high speed, and through the windows, the green hills retreat rapidly.

Lingnan is located in the southwest of Jiangnan Province, and the landform has also changed from most of the hills in Jiangnan to the southern mountains.

The economic development of Lingnan City is considered to be at the middle level in Jiangnan Province, and the main source is the discovery of several mineral deposits, and the Lingnan Municipal Government has also adapted measures to local conditions, and has formed a complete set of economic system integrating collection, ore separation, processing and transportation in the city.

The location of the two mines where Mu Qinghan obtained the mining rights is actually very interesting.

In fact, there are several metal and rare earth mines in various parts of Lingnan City, most of which are distributed in the southern part of Lingnan, and Mu Qinghan's two mines were actually discovered in the mountains northwest of Lingnan City, and this area has never been found before.

If the mining land in Lingnan is marked with red dots, it will be found that almost all the red dots are concentrated in the south, and Mu Qinghan's two mines are the only two red dots in the northwest.

It can be said that the strategic significance of these two mines is far greater than Mu Qinghan's estimate.

Two mines were found here, so in the surroundings, there are no mines.

The Lingnan government also thought of this before, and organized a large number of manpower and material resources to go deep into the mountains to investigate, but unfortunately nothing was found.

Experts could not give a reasonable explanation for this, only saying that the formation of these two mines may be some special reason.

In Mu Qinghan's view, what he wants is this "special reason"

The two mines are not in one place, not too far apart, the two places are about seven or eight kilometers apart, but there are just a few mountains in the middle, Mu Qinghan has to detour to get there, and it takes three hours to take a car from the two places.

After a brief look at the two mines, Mu Qinghan found that there were already people directing the work in the two mines at this time, and it seemed that the Seven Star Society was moving quite quickly, not only completing the handover procedures within a week, but also had already begun to send people to prepare for the mining work on the spot.

Mu Qinghan didn't go deep into the mine, and he didn't need to enter the mine at all.

On the periphery of the mine, Mu Qinghan had already felt the fluctuations in the aura.

Metallic aura, this is exactly what Mu Qinghan wants

After feeling the fluctuations of the aura in the two places, Mu Qinghan frowned slightly, "The aura of these two mines is really connected."

Following the aura, Mu Qinghan found that the strongest metallic aura was not either of the two mines, but the center of the geographical connection between the two mines, that is, directly below the peak that separated the two mines.

"Because of the influence of the source of the aura, these two mines were formed. Mu Qinghan roughly already had the answer in his heart.

"It's kind of fun to explore the treasure. ”

For exploration and treasure hunting, Mu Qinghan has always maintained a high level of enthusiasm.

It's just that he didn't expect that he would have the opportunity to encounter this situation again.

There was no one around, and Mu Qinghan didn't need to scruple about it, his figure moved, and soon disappeared between the mountains and forests.

After entering the mountains and forests, Mu Qinghan found that his mobile phone signal was completely gone, which should have been affected by the source of aura.

The mountain road was difficult, but for Mu Qinghan, it was not a problem at all, and after about half an hour, Mu Qinghan had already arrived at the foot of the highest peak in the mountains.

The source of the aura is emanating from the ground under this mountain.

Mu Qinghan snorted and concentrated, carefully perceiving the subtle flow of spiritual energy, and soon found that there was spiritual energy escaping from the north-facing mountainside.

"It seems that there is a natural entrance, and it saves me from making too much movement. ”

In the dense forest facing north of the mountain peak, a half-human-high cave was hidden in the shade of grass and trees, Mu Qinghan pushed away the numerical weeds and glanced at the cave.

At this time, the side of the cave is facing the sun, and only two or three meters of the entrance of the cave can be seen, which are all rocky rock walls, and the inside is pitch black, and there are faint strange sounds coming from inside, judging from the sound, this cave should be very deep.

Mu Qinghan didn't dare to be careless, so he used his spiritual power, protected his whole body, and bent down into the cave.

Entering the cave, Mu Qinghan felt dark all the way, and he didn't know how far he had walked, and he was alarmed by a dormant bat.

After walking for a long time, Mu Qinghan suddenly found that there was no road ahead, and at the same time, the surrounding temperature was getting hotter and hotter.

"No way?" Mu Qinghan pressed his hands on the stone wall in front of him, "The temperature of this rock is much higher than outside." ”

"Judging from the direction of my movement just now, I should have been walking downward, I walked for about two hours before, and now my position should be a kilometer underground. ”

Even if Mu Qinghan is now in the Saint Martial Realm, he can't compete with heaven and earth at this time, and now that he is underground, he doesn't dare to destroy the rock wall with all his strength, so he can only slowly grope along the stone wall.

After groping for a while, Mu Qinghan found a weak point in the rock wall.

Mu Qinghan slapped his palm on the stone wall, carefully knocking through a small hole in the stone wall.

Through the entrance of the cave, Mu Qinghan found that there was a passage on the other side of the stone wall, and a red halo was in the distance, and the jagged stone walls around the passage were slightly red.

"Finally there is light, at least I don't have to touch it all the way like a blind man. Mu Qinghan stepped over the entrance of the cave and walked towards the light.

This light source was farther away than Mu Qinghan had imagined, and as he got closer and closer to the light source, the temperature of the air around him rose sharply.

After walking for a long time, the passage became more and more wide, and finally came to the end, and at this time Mu Qinghan also saw the light source.

A flowing stream of underground lava.

Mu Qinghan hurriedly held his breath and used his aura to supply nutrients, he didn't step into the molten slurry, but the poisonous gas emitted by the molten slurry could also kill him.

"There is flowing magma here, it seems that the cause of those two mines should be related to this lava, and the source of the aura is also here. Mu Qinghan frowned, looked at the lava in front of him, and shook his head slightly.

"Even if I know that the spiritual source is in this molten slurry, I'm afraid I won't be able to get it for the time being. ”

"Let's see where the spiritual source is. Mu Qinghan thought of this and carefully sensed the flow of aura.

The aura here is obviously much richer than outside, but unfortunately this is underground, and even if the Spirit Gathering Array is arranged, it is difficult to pass through the soil layer of thousands of meters and teleport outside.

In the aura, Mu Qinghan suddenly found a mass of aura.

This aura mass is sucking in the aura around it, not fast, but methodical.

"Well, could it be that I am mistaken, this is not the source of the aura, but because this auramass is constantly absorbing aura, so the internal aura is abnormally full, which makes me mistakenly think that it is the aura emitted here. ”

However, even if the aura mass is not a natural spiritual source, it has absorbed the underground igneous rock aura for an unknown number of years, and now it can also be called a spiritual source. It's just that one is an innate spiritual source and the other is an acquired spiritual source, but no matter what kind of spiritual source, for the current Mu Qinghan, it is an unattainable treasure.

According to the perceptual direction, Mu Qinghan looked at the center of the magma pool, which was the location of the aura mass

It looks like it's sunk in magma.

"In an environment like underground lava, it is indeed easy to form some treasures. ”

Mu Qinghan was a little regretful, "Forget it, this time it's not worth the trip, at least determine the location of the spirit source, next time I will make some preparations, it shouldn't be difficult to get this spirit source." ”

With that, Mu Qinghan turned around and was about to leave, but as soon as he took a step, he suddenly stood still.

And it is to use the spiritual power of the whole body to protect the whole body.

The reason why Mu Qinghan Mo suddenly opened his tiger eyes, and he was engrossed in guarding behind him.

Because he felt that the aura mass had just moved.