"This cave is so deep?"

After re-entering the cave, Fang Yi walked for more than half an hour but failed to reach the end.

At this time, Fang Yi had already penetrated a thousand meters away from the cave. During this process, Fang Yi discovered several open cave spaces, each with a small space of hundreds of square meters and an astonishingly large of thousands of square meters.

The stalactites in the cave were hanging upside down, and the lava stones outlined various strange shapes. If it weren't for seeing them with your own eyes, Fang Yi would never believe that there would be such a landscape deep in the ground.

The more he walked, the more frightened Fang Yi was, because the more he walked inside, the more intense the yin energy in the cave passage became. Although it was in this airtight place, there seemed to be a sound of whistling cold wind in Fang Yi's ears.

"If you get lost, it will be miserable..."

When turning a bend, Fang Yi took a random stroke and drew an arrow at the bend. This underground cave has many twists and turns and there are many forks. Even with Fang Yi's memory, he can only leave a mark at each bend.

"It should be not far from the center of this extremely yin place, right?"

The yin energy around was almost condensed into liquid, and Fang Yi did not dare to let the yin energy here overflow into his body, so he had already closed the pores around his body, and the internal energy circulated in his body and completely isolated his body from the yin energy.

At this time, Fang Yi was not so much a cave, but an ice cave, because the rock wall and top of the cave were covered with a thick layer of ice.

I don’t know how many years these ices have existed. Fang Yi used the technique of a thousand-pound pendant when he was walking. He was unable to step on a footprint on the ground. He almost fell down several times because of slippage.

"When is it the end?"

After walking down hundreds of meters, Fang Yi felt that it was still cold and dark ahead of him, and he couldn't help but think of returning. Because his breath could only be run in his body for two or three hours at most, and it was time-limited.

"Huh? How can there be light in front? How can there be light in the depths of this underground?"

When Fang Yi was about to end this cave exploration and gave up pursuing the ultimate source of Yin Qi, he suddenly discovered that a trace of light came from a bend dozens of meters away in front.

"Go and take a look..." He had already arrived at such a deep place, so Fang Yi naturally didn't want to return without success. He accelerated his pace a little and headed towards the place where there was a bright tube.

"Well? What is this place? How...how did this happen?"

Just when Fang Yi had just turned that corner, he found that his eyes suddenly lit up. The stimulating Fang Yi quickly closed his eyes, but after closing his eyes, Fang Yi could also feel a dazzling light coming from his eyelids like the sun.

"Why is there such a strong light in this extremely yin place?" Fang Yi was shocked, but he did not dare to open his eyes, because after staying in the dark for so long, he suddenly saw the light, and Fang Yi's eyes were already a little injured.

After a while, Fang Yi slowly opened his eyes. After seeing this, Fang Yi was stunned because he found that another underground cave appeared more than ten meters in front of the bend.

It is completely different from the underground cave I saw before. The area of ​​this cave is not very large, only a few hundred square meters, but at the center of the cave, a black light body that is as dark as ink and emits a cold air.

This light body seemed to appear in the middle of the cave out of thin air. The color was pitch black and there was no trace of light at all. It was like a black hole in the universe, which could inhale all the light around it. Fang Yi just took a look from a distance and felt a chill all over his body.

"This is the real extreme yin energy. What I feel now is probably only a small part of the extreme yin energy that overflows, right?"

Fang Yi discovered that his previous judgment of the extreme yin energy had been wrong. With his current cultivation level, it was impossible for him to come into contact with the extreme yin energy. The power of the extreme yin energy was far beyond his imagination.

But this was not what shocked Fang Yi the most, because he had known for a long time that this was an extremely yin place. Even if the source of the extremely yin place was strange, Fang Yi was mentally prepared. What surprised Fang Yi was the fire that appeared in the cave.

It was next to the ball of black holes that was as dark as a black hole, there was a luminous body as dazzling as the sun. Fang Yi narrowed his eyes and looked at it for a moment, and a stinging pain came from his eyes.

"This... how is this possible? Why is the pure yang energy present in the extremely yin place?"

Seeing the scene in front of him, Fang Yi's thinking became a little confused. Although the fire did not emit any temperature, Fang Yi could clearly feel that as long as the temperature in the fire was slightly overflowing, he might turn himself into ashes.

"This...what is going on? How can Jiyin and Jiyang appear in the same space?"

Fang Yi involuntarily took a few steps back, because neither the fire of the extreme yang or the extreme yin aura were able to resist. Next to these two completely different objects, a kind of pressure like heavenly power enveloped Fang Yi's heart.

"Hmm? It's actually a Tai Chi pattern?" Fang Yi narrowed his eyes and observed for a while before he found that the two lights of Jiyin and Jiyang actually formed a clearly divided Tai Chi pattern in the center of the cave.

Half of the huge cave space was shrouded in the fire, and the other half was extremely cold. Fang Yi was near the cold place, so he could not feel the slightest heat, and even the light emitted by the fire was much weakened.

Fang Yi also discovered that on the left and right sides of this Tai Chi pattern, there were two caves that were unknown where they were leading. Strands of extreme Yin and extreme Yang energy overflowed from the cave and merged into the two lights in the middle of the cave.

These yin and yang energy are like having their own thoughts, each integrating into their own side, and then confronting each other in the air, forming a very wonderful balance, but Fang Yi believes that if this balance is broken, an incredible power will burst out.

The passages and rock walls behind the firelight are all fiery red, and the hot high temperatures are attracted by the firelight. However, Fang Yi believes that if he is standing near the firelight, he will definitely feel the heat.

"Why can't you get in? What's blocking me?"

Fang Yi calmed down and continued to walk forward, but when he reached the end of the passage and was about to enter the cave, he found that an invisible force blocked him.

The power was like an invisible wall of light. No matter how Fang Yi used his power, he could break through. After trying for a while, Fang Yi finally stopped because if he continued to tossing, the breath in his body would be exhausted.

"Is it this invisible obstacle that prevents the extreme yin energy from being fully emitted?"

A thought suddenly arose in Fang Yi's mind, which also made him feel cold. Just one thousand percent of the extreme yin energy emitted, it could freeze thousands of meters in the passage he was in. It is conceivable that if there was no such closed space, the yin and cold energy would ravage the cave.

"It's broken, I'm going back quickly..."

The force just now caused a slight disturbance in Fang Yi's breath. Fang Yi knew that he could not hold on for too long. He looked deep in this strange cave, as if he wanted to remember all the situation in the cave in his heart.

"What is that?" Just as Fang Yi was about to turn around, he suddenly saw a shallow pit the size of a sea bowl was hidden under the Yin-Yang pattern. In the shallow pit, there was a thin layer of golden liquid.

The reason why Fang Yi could notice this shallow pit was because these liquids actually evaporated a trace of golden mist, condensed under the Yin and Yang pattern, presenting the third color in the cave.

"Is this liquid a treasure?" Looking at the golden liquid, Fang Yi felt an indescribable desire to possess, and a voice from the bottom of his heart told him that those golden liquids would be of great use.

"Damn it, I can't break this barrier..."

Fang Yi tried again, but when he didn't dare to do his best, the invisible power that could not open the blocking channel at all made Fang Yi's aura become more and more disordered.

"If you have any improvement in your cultivation in the future, you must come back and enter this cave..." In desperation, Fang Yi could only retreat. However, when he turned around, Fang Yi secretly made up his mind and must return to this place in the future-
Chapter completed!