Judging from the traces, it is believed that when the American army evacuated here, the place was blasted, destroying the passage to the underground to prevent anyone from entering...... Or to prevent something from coming out.

Er Yi thought about it for a while, looked up at the group of people who were "leveling" on the other side of the lake, and connected the internal channel to notify them to come over, but he didn't expect that there was only a rustling noise in the communication device.

Is the electromagnetic interference here already so serious?

After being surprised for a moment, Er Yi could only temporarily imprint the [Communication Technique] technique and convey a message to the Fat Tiger and Shu Meizi on the other side of the lake.

This communication spell is the most useless spell that Eryi thinks.

Not to mention the limited communication distance, it can only transmit messages unilaterally, which is almost equivalent to a walkie-talkie.

There is a branding technique, and the time to release the spell is better than just taking out the mobile phone and dialing a call, so it has been idle and has not been used, but I didn't expect it to be used here.

It seems that the various strange spells given to him by the Book of Heaven are not so-called useful or useless, but depend on what kind of situation is reasonable to use.

After notifying his companions, he found the entrance to the underground space of the base, and asked them to be careful and take their time, and after Er Yi directly started to clean up the scene.

Use [Ground Shattering] to destroy the debris of the building and break it into finer particles, then use [Earth Removal] to move it aside and slowly clear out the passage into the underground space.

The main reason why [Fossil to Mud] is not used to melt the building remains is that this spell can only be applied to natural rocks, and has no effect on artificially poured reinforced concrete buildings.

This situation seems to be a common feature of celestial calligraphy, and unless it is a targeted spell, it can generally only be applied to natural objects.

This is also thanks to a person like Eryi who has supernatural abilities, otherwise it is really not easy to clear an underground passage in such a barren mountain and wild place, and in the case of not being able to use large-scale engineering equipment, if you want to dig by manpower alone, you can't see the effect at all without ten days and half a month.

As the ruins of the buildings on the surface were removed, Eryi jumped into the pit and began to use spells such as [Hole Digging], [Wall Digging], and [Quick Excavation] to dig all the way along the traces left in the underground passage, but he didn't expect to dig deeper and deeper, and actually dug a shaft!

"Damn, if you dig like this, you won't dig up the volcano for a while, right?"

Surprised, Eryi looked around with [Exploring the Earth], only to see the traces of the building debris going straight into the ground, looking like a mine.

And judging from the metal debris remaining in the dirt, there should have been a mechanical device such as an elevator, but it collapsed after being blasted.

Looking at the Emerald Lake from the ground, it is obvious that the lake, which was originally only a few meters deep on average, suddenly scavenged near the center of the lake, and it looks like it has been hit by something.

"It's ...... Crater?"

After carefully observing it for a while, Er Yi came to a conclusion in astonishment.

This unfortunate active volcano was unfortunately hit by a meteorite that fell from the sky more than 100 years ago, resulting in that eruption.

It is said that shells do not fall in the same crater, so how did a meteorite fall into this crater so coincidentally?

Eryi vaguely felt that the parasitic fungus should not be an extraterrestrial fungus brought by a meteorite, but it adapted to the special environment of Ashin Tuzhi Island, so it was bred, right?

Otherwise, it would be difficult to explain why nature gave birth to such strange creatures, and this could not be an example of an "alien invasion", right?

And the important item that Professor Donald was looking for couldn't be the meteorite that the Fuso army found here back then, right?

Could it be that there is anything special about that meteorite?

The more he thought about it, the more he felt that it was possible, because judging from the impact crater of this volcanic basin, the volume of the meteorite that hit the volcano would definitely not be too large, otherwise it would not have been transported away by warship back then.

Suddenly came to the second one, who was interested, and the digging was more energetic, and he used to like to study these mysterious things, and he watched those videos about unsolved mysteries on AB station, as well as UFOs, aliens, and supernatural events.

Last time, the demon capital and his party came into contact with the mysterious head descending master, he originally thought that he could uncover the mystery of this world, but he didn't expect that although the so-called descending technique was mysterious, but in the final analysis, the so-called "medicine and insect descending" still couldn't get out of the category of medicine and biology.

The only spiritual point of the "ghost descent", after he mastered the occult knowledge given by the Book of Heaven, did not find it so difficult to explain.

After all, the existence of souls has been confirmed by scientists, and it is not impossible for the ancient head descenders to master the means of communicating souls through some mysterious means.

As soon as the truth was revealed, Er Yi felt disappointed, not at all as mysterious as he imagined, after all, even the two major forces of Nanyang Black and White were almost destroyed by his consciousness split.

Because of the deep relationship, the second one had to dig in a zigzag shape.

Prevent digging too deep for a while, and like the last time I found the bones at the Panlong Cultural Site, dig a pit and end up unable to go up by myself.

It's also thanks to the [Soil Removal Technique] that after moving the soil, it will have the property of "not collapsing", or Eryi really doesn't dare to dig too deep, for fear of accidentally burying himself alive.

In order to ensure safety, Eryi did not hesitate to go to great lengths while digging, using [turning mud into stone] to convert the excavated soil into rock, and then using [stone wall technique] to transform the rock into a solid rock mass covering the four walls of the tunnel, and in some weak places found with [Exploring the Earth], [Earth Skeleton] had to be used to prop up the stone pillar as a load-bearing.

I dug dozens of meters into the ground, and finally I was empty in front of me and dug into an underground space!

As soon as he stepped into the base, he felt the scorching temperature coming to his face, if he wasn't wearing thin armor and a helmet, it was estimated that he would be able to smoke him to the ground in one fell swoop, and the underground space that had been sealed for decades was located in the crater, and the ghost knew what poisonous substances existed in the air full of sulfur.

After acclimatizing to the environment, Eryi summoned the ball of light of the [Dancing Light Technique] and began to slowly and carefully explore the past inward......