Medicine stone is a special mineral that can be used to refine different fruit pills and realm pills.

Different rankings of the Shushan branch have different medicinal stone mining areas. The higher the ranking, the better the mining lines in the mining area, and the more medicinal stones that can be produced.

When entering a mining area every year, the first thing to do is to conduct a survey, that is, to see if the mine tunnel needs support and to eliminate some safety hazards. After all, it has been ten years since each mining area was last used!

If it were the outside world, a mining area with wooden tunnels supported by wood and no one taking care of it for ten years would definitely become a dangerous mine. Let alone mining ores, even if you just go for a walk, there may be a possibility of landslide.

However, many of the woods in Shu Ruins are not found in the outside world. Their wood is hard and corrosion-resistant beyond imagination, and the traces left by ten years and the environment are not particularly serious. And in

Only 20% of the pit wood that needs to be replaced has been lost to time.

If there was no prehistoric space in Guzheng, they would have to carry wood when entering the mining area. It is a rule to replace the broken pit wood in the mine tunnel. This must be done regardless of whether they will mine in the mining area. This is also for the next opening of Shu Ruins.

Convenience for future generations.

Walking down the sloping mine tunnel for a hundred meters, the air was turbid and humid, with water seeping in some places, and occasionally you could hear the sound of "tick-tock-tick".

There are not many damaged pit woods in the mine tunnel. Due to the humid environment, fungi similar to fungus grow on many of the pit woods. The colors range from white to yellow, but they are all inedible.

The mine tunnel is very short, so everyone walking forward should keep their heads slightly lowered.

"Squeak, squeak, squeak..."

Zhang Tiancheng walked in the front. The lantern he held in his hand swayed with his steps, making regular sounds of metal friction, causing echoes.

The light in the lantern is white, illuminating a large area. The light source does not come from traditional kerosene, nor does it come from the trendy 1ed, but from a stone called 'moonstone' in the mining area.

The world of cultivators is very secretive and is almost unknown to the world. Many things in their lives will not easily be released to the outside world. Just like this kind of stone that can be used as a light source, if it is placed in the outside world, it will definitely be a gem.

In the world of cultivators, such things can be used, but they are strictly prohibited from spreading, otherwise it will break the rules.

The swaying sound of the lantern stopped, and Zhang Tiancheng pointed to a log on the side: "There is one that needs to be replaced."

Although the mine tunnel is low, it is not narrow, and it is no problem for three people to walk side by side. Gu Zheng came to Zhang Tiancheng's side and released an 'Iron Oak' from the ancient space. Gu Zheng and Liu Ying also got busy immediately.

stand up.

The prehistoric space of Gu Zheng is regarded by Zhang Tiancheng and others as a space fairy. With Ouyang Hai, a veteran cultivator of immortality, some of the strange things about Gu Zheng can be explained.

"It's really annoying. Can't there be fewer damn bugs?"

Liu Ying took the pit wood that Gu An had removed and looked at the wormholes in it with disgust. Twenty percent of the pit wood that needed to be replaced was lost to the erosion of time, and the remaining 80% was lost to worms.

"Huh?"

Liu Ying's words made Gu Zheng hear the word 'bug' again, and he couldn't help but think of the 'Peach Spirit Bug' that was used to catch the Earth Spirit Turtle yesterday, so he asked the Artifact Spirit to explore it, and he actually found some.

question.

There is not even a single 'woodworm' in the entire worm-eaten wood!

"What did the leader discover?"

Seeing that Gu Zheng didn't say anything but walked forward with a lantern, Liu Ying asked curiously.

"Follow me, it's hard to say now." Gu Zheng replied without even answering.

After walking down for a while, the sloping mine tunnel changed and some bifurcations began to appear. This was because it was not until more than 100 meters into the ground that the mine tunnel was finally opened on the medicinal stone ore line. The bifurcations were caused by chasing

It is formed by mining along the ore line.

Almost all the forks were dead ends. The ore line he was chasing had been mined cleanly. Gu Zheng looked at the map and walked into the mine road that still had the ore line extending. The road gradually became wider.

A piece of worm-eaten wood was discovered by Gu Zheng, and after being inspected by the weapon spirit, he learned that there were still no worms in the wood, and there were no wormholes or even insect corpses.

Gu Zheng's brows furrowed a little as he was listening to Qi Ling's analysis.

After a while, Gu Zheng's brows relaxed and his expression was somewhat excited.

"We met a treasure."

"Why did the leader say that?"

Gu Zheng's sudden words made Gu An and the others very curious.

"Speaking of encountering treasures, let's first talk about this pit of woodworms."

"In your opinion, the woodworm eats wood. In fact, this is wrong. The woodworm eats the semi-raw minerals of medicinal stones. It just likes to live in the wood. And the woodworm is the first woodworm we have encountered.

A treasure!"

Gu Zheng's voice paused, and Liu Ying and the others suddenly widened their eyes.

"Is this pit of woodworms a treasure?"

Liu Ying couldn't help but ask. After all, before entering the Shu Ruins, Elder Wuchou also specifically told him that when replacing the insect-eaten pit wood in the mining area, the pit wood insect inside must be killed to prevent it from harming the mining area again. However, Wuchou

Elder Chou did not explain the fact that the woodworms were treasures! Not only him, but I believe the elders of other sects also explained this to the disciples who entered the mining area.

"The pit wood insect is indeed a treasure, but it needs special treatment before it can be used to make elixirs. And the 'pure elixir' made from it and high-grade medicinal stones as the main materials can be used to purify internal energy!"

"What?"

As soon as Gu Zheng's words came out, Gu An and the other two people immediately shouted out!

The temporary benefit of purified inner energy is an increase in strength. Purer inner energy also has more powerful destructive power. In the long run, if one wants to advance to become an immortal cultivator, purification of inner energy is an inevitable step.

There are very few elixirs that can help purify internal energy, and 'Snow Lotus Pill' is one of them. In addition, internal energy can also be purified with the help of external forces, but the requirements for using external forces are very high, and you need to help others purify internal energy.

Human beings must reach the state of spiritual transformation and virtual reality.

Taishang Elder Ouyang Hai meets the criteria for purifying inner energy for others. If you use this method to purify inner energy for others, it will do great harm to yourself. To purify inner energy for others, it will take several years to cultivate, and

Emei can be considered to be in a troubled time, so Gu Zheng's trip to Shushan did not allow Ouyang Hai to help Elder Wuyou refine his internal energy.

The woodworm, which is considered useless, can be refined into elixirs that can be used to purify internal energy by combining it with some high-end medicine stones that are indispensable in the sect. This news is really shocking! After all, fighting has been fought since ancient times.

Judging from the tone of his voice, the remaining ingredients of the 'Purity Pill' don't seem to matter much, and it doesn't look like it would be difficult for him to refine it.

"Don't think too much about it. I don't know the formula of 'Pure Pill'. I just heard my master mention it. How to refine it? I have to ask him to know."

Gu Zheng mentioned "Master". As for this "Master", whether Gu An and others would regard him as Ouyang Hai is not something Gu Zheng needs to consider.

As for not knowing the recipe, Gu Zheng didn't lie. The damn weapon spirit didn't seem to want to tell him.

"No wonder the master put away the worm-eaten wood before. It turns out that the worm is such a treasure!"

Liu Ying realized it later, but she didn't know that Gu Zheng didn't have any foresight. He put away the insect-eaten wood at first, just because he didn't want to waste time in the mine tunnel.

"Master, you just said first, then what's second?" Zhang Tiancheng asked.

"There are no woodworms in these two pit trees that I noticed. They did not migrate or die naturally, but were eaten!" Gu Zheng said slowly.

"What? Being eaten?"

Zhang Tiancheng and the three of them opened their eyes wide at the same time. They had just learned that the woodworms were treasures, and immediately got the news that they had been eaten. Suddenly, they felt angry in their hearts.

"Master, in such a big log, is there not even a single bug in it?" Gu An said unwillingly.

Gu Zheng shook his head: "You can replace the moth-eaten pit wood and then split it open to take a look."

Gu An and Liu Ying immediately took action, and the insect-eaten pit wood was replaced and broken open. They saw intricate insect passages with transparent lines everywhere, as if a slug had crawled in. After the secretions dried,

What it looked like after that. As for the so-called woodworms, as Gu Zheng said, there are none.

"This is the trace of saliva left by the 'long-tongued beast' after eating pit woodworms."

Gu Zheng gave an explanation, but the eyes of Gu An and the other three were confused. They had never heard of the so-called 'long tongue beast'.

"The long-tongued beast is a medium-sized spiritual beast. It looks very much like a pangolin in appearance. Because it has the rare 'Golden Escape', it can quickly sneak into the mountain, so it is difficult to be caught. The long-tongued beast's main food is medicinal stones.

, the pit woodworm is just its snack, and the treasures I am talking about, in addition to the pit wood insect, are the 'long-tongued beasts'. This kind of spiritual beast whose main food is medicinal stones can be said to be full of treasures. Moreover,

Judging from the secretions it left behind, this 'long-tongued beast' should still be in our mining area."

According to Qi Ling, the meat of long-tongued beasts is generally of medium grade, which is a very needed ingredient in ancient times.

"What are you going to do, Master? Do you want to deal with it the same way you deal with the Earth Spirit Turtle?" Liu Ying asked.

"The Pitwood Insect is just a snack for the 'Long-tongued Beast'. It also has good spirituality, so it shouldn't be as greedy as the Earth Spirit Turtle. However, even though the 'Long-tongued Beast' is covered in scales, its defense

Its strength is far inferior to that of the Earth Spirit Turtle! As long as we can encounter it, as long as it runs slower, the Aofeng Bamboo Arrow should be able to deal with it!"

Gu Zheng looks confident on the outside, but actually feels quite helpless in his heart.

There are four types of Five Elements Immortal Techniques that have been learned in ancient times: Fire Control Technique, Water Control Technique, Wood Control Technique, and Earth Control Technique. Among the five immortal techniques, only Fire Control Technique has been strengthened by Huoyuan Dan. When there is a source of fire,

, the power is barely adequate.

If Gu Zheng's Earth Control Technique had also been strengthened by pills such as the 'Tu Yuan Dan', then the turtle shell of the Earth Spirit Turtle he wanted would be much simpler than it is now!

In the same way, if Gu Zheng possesses the secret of controlling gold and has been strengthened by elixirs such as 'Jin Yuan Dan', he will be much more confident in hunting long-tongued beasts that he has never met before.

"Master, since the Woodworm is a treasure, why don't we split up and visit the mining areas of the Qingcheng Sect and the Situ Family first?" Liu Ying suggested.

"Yes, I think so too. Liu Ying and Tiancheng, you two go to Qingcheng and the Situ family's mining area respectively to see if you can find the woodworm. After you are done with things there, you can come here and follow Gu

Meet up with An, and then stay here to mine medicinal stones! When I come back from the depths of Shu Ruins, I will come here to find you."

After the trip to the mining area, Gu Zheng wanted to go to the depths of Shu Ruins alone. He had already told Liu Ying and the others about this before, so they were not surprised when he mentioned it again. After all, the danger factor in the depths of Shu Ruins was

It's very high. It would be better for Gu Zheng to go alone.

"As you command!"
To be continued...