Li Lijun held a palm-sized piece of translucent stone in her hand, looked at it over and over for a while, then weighed it, her eyes involuntarily showing wonder.

This was cut by the Rat King behind the ice of the cave. After removing the ice, most of the surface of the cave wall where they were located was covered with stone flakes like this. The difference was only in the degree of transparency and shape. It was also

It is not a complete thin shell, but instead has many cracks. The rat king can peel off a piece with a paw. If there is not a layer of ice sealing it, maybe it would have been blown away by the mountain wind over the years.

Become dust.

Li Lijun asked the system, and the system said that this thing looked like a lightning strike stone in terms of shape and texture, but this cave did not look like a place where lightning strike stones would be produced.

The so-called lightning strike stone, also called lightning lava, is a very rare stone, usually in the shape of a tube or stick, dark gray in color, glassy in texture, and very light in weight. There are generally two reasons for its formation. One is formed by the impact of meteorites on the earth's surface.

There is no need to go into details; the other is when lightning touches the ground, the temperature instantly reaches 100,000 degrees, which vaporizes the material on the surface of the ground. However, it soon encounters heavy rain and cools rapidly, forming lightning strikes.

.Because high temperature will vaporize surface materials. If it is not cooled in time, nothing will be left.

It is impossible to encounter a meteorite impact in the cave, and there is no reason to be struck by lightning by such a coincidence - the angle is wrong. So how did this layer of material on the cave wall, which is suspected of being struck by lightning, form?

Li Lijun could only guess that either this thing was not lightning-struck wood at all, but just some kind of material with similar texture and shape, or... there had been lightning in this cave, and the temperature reached 100,000 degrees, and the rock surface inside the cave was

It vaporized but cooled down quickly, forming this layer of material that looked very much like lightning struck stone.

Considering that there is probably an ancestor Lin Yuan buried in this mountain, and the ancestor Lin Yuan himself is a swordsman of Lei Linggen, and combined with the strange shape of this cave... Li Lijun feels that this possibility is still very high.

Although the legendary power is very powerful, he is only the Yuan Ying ancestor. Lin Yuan Ancestor is also a Yuan Ying cultivator, and the strength of sword cultivators is often higher than that of magic cultivators of the same level. There should be a difference in strength between the two.

Not much, at least in the beginning. As for the defeat of the ancestor Lin Yuan and being trapped in the mountain, it can only be said that the great master was superior in skill, or it may be due to luck.

If during the fight between the two, Ancestor Lin Yuan sends out a sword from the mountain and penetrates the mountain, the thunder and lightning power attached to the sword will melt the surface of the cave, but because the mountain is already full of icy aura, even if there is no

Heavy rain can also quickly cool down the surface of the gasified rock, so it is very reasonable that a shell of lightning-strike stone will be formed in the cave.

Li Lijun looked at the depths of the cave filled with rubble, and then at the cave wall that gradually revealed its original shape after the ice was removed, as if she had seen the scene of the Nascent Soul battle.

In the Ziwei world, she had also witnessed the Nascent Soul War and even the Transformation God War.

Erhong saw that Li Lijun seemed to be in a daze, so she lightly touched her and said, "What are you thinking about, little lady? What on earth is this thing?"

Li Lijun came back to her senses and couldn't explain how she knew it. She could only answer vaguely: "I can't tell clearly. It seems quite rare. Let's put the things away and try to use them to practice something later. Maybe it will work."

it works."

The rare lightning strike stone can be considered, whether it is refined into Xiaofan Tianyin or used to refine other magic weapons. Li Lijun also thought that this thing is so rare that maybe it can be purchased when the system mall reopens in the future.

Go to the mall to try selling it. Although it is not clear whether it will have special effects in the extraordinary world, if it goes to those technologically advanced worlds and is only used for collection, it can attract a lot of people. By then, even if it is

She used it to exchange supplies, grains, etc. with other missionaries, which was also very economical.

Erhong didn't know what Li Lijun was thinking, so she just obediently helped collect the lightning strikes peeled off by the Rat King. This thing could be stored in the small porcelain storage vase Li Lijun had in stock. The Rat King's main task was to dig the cave.

After peeling off a few pieces, Erhong took over the rest of the work. She had recently learned a few new metallic spells, and it was just a good time to practice them more. Anyway, if she was tired from practicing, she could regain her spiritual power by meditating for a while.

It doesn't take much effort. Repeatedly depleting her spiritual energy and then meditating to recover it can also help her improve her cultivation.

The rat king dug a side hole of two to three cubic meters in size. Feeling that he still had some strength left, he confirmed that his small paws combined with the tailor-made claw guards were enough to cope with the rocks on this mountain. Then he started

Now it’s time to do your real mission.

That is to reopen the passage blocked by the pile of rubble, go deep into the mountain, and explore the situation inside. No matter what is inside, whether it is a spiritual stone or a spiritual mine, anything that contains spiritual power will be detected in its perception.

There's nothing dangerous about it. It needs to be dug out for Li Lijun and Er Hong to take a look at.

The armor on the Rat King is specially made. It not only protects against cold and heat, but also has very good defense capabilities. Even if a boulder squeezes it, it can open a strong protective shield to help it escape and prevent it from being crushed.

In addition, Li Lijun dug out seven kinds of spiritual silk and spiritual vines from his private inventory, twisted them into a 10,000-meter-long silk rope, and tied it to the Rat King's armor.

Activating the connected talisman array can ensure that after the Rat King burrows into the mountain, she and Erhong can also detect its physical condition from the color change of the silk rope. If anything is wrong, the silk rope can be recovered immediately, and the Rat King can be removed from the mountain.

Pulled back from the heart of the mountain.

However, considering that the spiritual energy in the mountain is freezing cold, and the armor and talismans on the Rat King are all made by Li Lijun, a monk at the sixth level of Qi refining, she also knows that the things she refines may not be able to withstand the cold. In order to ensure that the Rat

The king will not be frozen out during the digging process. She will let it come back every hour to rest. If it feels unwell during work but cannot issue a warning, then it will have to be remembered immediately in the mind.

Zhong contacted his owner, Er Hong, and quickly recalled it after Er Hong trusted him.

Li Lijun also gave some additional instructions to the Rat King. For example, if it encounters any dangerous situation in the mountains or has a bad premonition, no matter whether it sees something, it must notify its owner Er Hong as soon as possible and return quickly.

; Another example is that everything is based on its safety. If it encounters too dangerous terrain, it would rather not continue than take risks; another example is that it has a small storage bag in its armor, no matter what it digs, you can first

Put it in, the small bag has about five cubic meters of storage space, which is enough to store spiritual mineral samples and so on; and there are about a dozen small black cranes that she put in the storage bag in advance.

When the situation is unclear, let the little black crane out. She and Erhong will help observe it through the mirror. It can go when the time comes, and there is no need to worry about anything else...

Li Lijun and Er Hong each gave a lot of instructions, until the rat king became dizzy, and then they let it into the hole. They saw the rat king quickly running into the rubble, waving his two small paws, and there was no claw.

In two strokes, an area was cleared, a palm-sized hole was dug, and it was instantly submerged into it, as if something terrible was chasing it from behind.

Li Lijun and Er Hong looked at each other and couldn't help laughing.

(


Chapter completed!