C422 Underground Exploration

A hundred meters, two hundred meters, five thousand meters! Yun Fei's Divine Sense had penetrated five thousand meters deep. It was slowly rotating and scanning, but he still found nothing.

Yun Fei was a bit discouraged. Five thousand meters was his limit. Most of the rocks underneath the pit were hard. An ordinary Early Period of Martial Emperor would use the Divine Sense to scan. ___'s Divine Soul Body was comparable to a Martial Emperor Peak's Divine Soul Body. Only by using the unique Thunderous Divine Sense could he reach a depth of 5,000 meters. If Bai Jianshan and the others knew about this, they would have to sigh again.

Yun Fei retracted the Divine Sense. He was not willing to give up, and he wanted to confirm his previous guess. However, when he thought of the possibility that it might be tens of thousands of meters underground, or even hundreds of thousands of meters deep, he still felt a little afraid. Yun Fei, who had been stimulated by the slow advancement of his cultivation base, was determined to find out about the underground situation here.

Actually, Yun Fei no longer cared about whether there were any Top Grade Spirit Stone mines underground. He simply wanted to see the situation in the depths of this planet.

Before coming to this world, the books and literature in the Peking University Library mentioned that... The former Soviet Union had explored some super deep wells for geological research, and the most famous one was the deep well in the Cora Peninsula. Drilling The depth was 12262 meters.

The Koala super deep drill was also the deepest hole that humans had ever dug on Earth. The construction started in 1970, and only stopped in 1994. It was very difficult to dig a deep hole. Especially the last 262 meters, which had been dug for a whole ten years. It showed how difficult it was to dig and explore the earth's core. But the depth of 12 kilometers, for a radius of more than 6000 kilometers on Earth, that was all.

In the end, the Koala super deep hole stopped digging, and the officials said it was because of the funding problem. And what was more widely spread was that the construction workers... They heard howls and screams coming from the drilled holes, a kind of sound that was called "hell." This phenomenon that couldn't be explained by science and the fear humans had towards "hell" was the real reason why they stopped digging deeper into the hole.

Yun Fei had once read Geocentric Travel by the French science fiction writer, Joel Verne. In the book, it talked about German scientist Professor Li Dembrook, who brought his nephew, Aksel, and his guide, Hans. The story of a journey through the earth's core. The Earth's Core in the book was not entirely composed of dark, scorching soil, rocks, and lava. Instead, it was a primitive human fossil and many extinct creatures, including rivers and oceans. There were wild winds, rainstorms, and many strange plants and terrifying monsters.

The diameter of this Big Horn Star was probably dozens of times that of Earth, and its interior was extremely deep. He didn't know if there was a "hell" in the depths, or if there was also that "hell" sound. The natural Yuan energy here was much more abundant than on Earth, and the ground was also filled with natural spiritual energy. Would there be a world in the depths of the earth, and would there also be ancient creatures and monsters?

This also aroused Yun Fei's curiosity and impulse to explore, and he decided to investigate. Yun Fei decided to use the Ice Fire Yin Yang Sword to dig a hole at the bottom of the pit. After digging for ten to twenty thousand meters, he would use the Divine Sense to explore further.

In order to dig a deep hole, he also had to avoid running into flowing magma when digging through the rock layer. Otherwise, it would be troublesome for the entire volcano to erupt. Yun Fei let out the Divine Sense in front of him as Ice Spirit and the fire spirit grumbled in dissatisfaction. He used the Ice Fire Yin Yang Sword to spin behind him to dig a hole.

The Ice Fire Yin Yang Sword was the Heaven World Divine Sword, and it was incomparably sharp. In addition, Ice Spirit and the fire spirit inside the sword had some dissatisfaction. As they dug, the two little fellows seemed to want to get angry with Yun Fei. Suddenly, they accelerated, and almost rushed down to the ground. There was a round hole about half a meter in diameter behind the sword. The wall of the round hole was smooth and there were burn marks on it.

Ice Spirit was in charge of digging the hole and the fire spirit was in charge of burning everything that was dug into nothing. The two little fellows had a tacit understanding. After Ice Spirit returned, there was a huge amount of energy stored in the sword. It was also enough for the two little fellows to squander. Furthermore, the theory of the Yin-Yang and Icefire Polarized by Yun Fei was already very well understood. The convergence of ice and fire energies had also reduced the amount of energy it consumed.

Before Yun Fei could react, the Ice Fire Yin Yang Sword had already dug tens of thousands of meters deep into the ground. In the middle, there was actually a stream of flowing magma that was like a river. However, Ice Spirit, who was' angry ', froze it into a rock and drilled a hole in the middle. He continued to rush underground.

Yun Fei could not help but shake his head and laugh. It was good that it did not matter. As long as the volcano did not erupt, it would be fine. Besides, Ice Spirit and the fire spirit had a trace of divine connection with him. He could let the two of them get busy and he would be happy to relax.

Yun Fei only maintained a trace of divine soul connection. He no longer used the Divine Sense to track and scan. He let the two little fellows control the Ice Fire Yin Yang Sword to drill into the depths of the ground. He took out the Spirit Gathering Board, activated the formation, and continued to cultivate.

After more than two hours, Ice Spirit's voice suddenly sounded in his sea of consciousness. "Master, we have arrived at a relatively empty place. Should we continue to dig holes? "

"Have you found anything?" Yun Fei's heart shook. The Divine Sense that he had condensed went down along the dark hole. He could not help but be shocked. The Ice Fire Yin Yang Sword had dug hundreds of kilometers deep in two hours! If it was on Earth, it should have passed through the earth's crust and dug into the depths of the mantle. That was a depth that humans had never reached before.

Yun Fei received the Little Bifang into Soul Suppressing Pagoda. In addition, to be safe, he extracted another bit of Chaos Qi from the Golden Core to form the Chaos Barrier. Protecting his entire body, he leapt towards the dark hole dug by the Ice Fire Yin Yang Sword. His body descended rapidly. The Chaos Barrier constantly rubbed against the wall, and even emitted sparks. His speed was getting faster and faster, and Yun Fei's Divine Sense was also continuously probing the depth of the hole.

Yun Fei, who was falling at a rapid speed, felt that the temperature around him was getting higher and higher. The Divine Sense also reached the empty space that Ice Spirit had mentioned. The space was huge, and underneath the space was rolling magma. If he rushed down at this speed, he would definitely dive into the magma. He didn't know if the Chaos Barrier would be able to withstand it.

Yun Fei's hands, feet, and back pressed against the wall, and his falling speed slowly decreased. With the protection of the Chaos Barrier, Yun Fei's body wasn't injured by the intense friction, but a string of burning flames was left behind.

He suddenly felt his body stretch out, and came to a huge dark red space. This place seemed to be a world of its own, and it was still ten thousand meters away from the boiling magma. The speed of his descent increased once again, and Yun Fei hurriedly took out the Spirit Gathering Array Disk with an anti-gravity device. Standing on top of it, because of the anti-gravity effect, the formation plate kept reducing Yun Fei's speed of descent. Finally, it stopped less than a hundred meters above the magma.

The Ice Fire Yin Yang Sword also returned to Yun Fei's side, and started dancing around him. The Fire Element Energy here was extremely rich, but the quality of the Fire Element Energy was extremely high. The Ice Fire Yin Yang Sword was not worthy of being absorbed, so Yun Fei put the Ice Fire Yin Yang Sword back into the scabbard at his waist.