At night, it was so fierce that there was almost no sign of sign. Suddenly, it became dark.

That's right, there was no sunset, no sunset, and no moon rise. In just a moment, the room, which seemed to be completely closed, suddenly was turned off by someone. Without any light source, he immediately fell into a dark state of no fingers.

The source realm at night, no, more accurately describes it, which should be the source realm in the dark, which is more dangerous than before.

Su Yang still remembers the commotion hidden in the darkness when he had just arrived at the Ninth Level of the Holy Realm Tower, Han Zhengzhong, the head of the Han family in Duantian Prefecture, deliberately took him out of the Ninth Level of the Holy Realm Tower. At dawn and night, the commotion hidden in the darkness.

However, at that time, Su Yang did not spend much time in the darkness. Although he obviously felt the dangers contained in the darkness, he did not have any clear understanding of the darkness.

It’s different now. After a period of systematic learning, Su Yang has already gained a preliminary understanding of darkness.

Darkness is the biggest enemy of the holy realm, no doubt about it.

What's even more terrifying is that the Holy Realm has been fighting against darkness for billions of years and is still in the passive defense stage. No one can tell the origin of darkness, nor do they know what exactly exists in darkness.

In short, in the face of the darkness of the source realm, the only thing the holy realm can do is to burn the power of the world and resist the erosion from the darkness.

But even so, when the darkness surges most violently, if the burning world power is insufficient, it is very likely that it will not be able to act as a defensive effect. Someone will be caught into the darkness and disappear without a trace.

Therefore, every time darkness comes, it is a huge test for the holy realm.

Especially for the stronghold hanging outside, the threat of darkness far exceeds the vicious creatures in the source world. It is very likely that one is careless and there will be no living person left in the entire stronghold the next day.

Now, darkness has arrived, and Su Yang will also face the first time that he truly faces darkness and the first time that he stays away from the protection of the Ninth Level of the Holy Land, and spends a tormented night.

"What sound?" Just as the moment when the darkness came, Su Yang did not know it at the first time. After all, this stronghold was shrouded under a huge flame. Without seeing the outside world, he did not know that the darkness was coming.

But Su Yang still made some warning signs at the first time, and some vague sounds could be heard in his ears, as if countless people were talking and could not be checked, but when he heard it carefully, it seemed that there was no one.

Suddenly, facing such a situation, Su Yang was very alert, with a serious expression and a sharp look around.

Han Zhenghai, who was always by Su Yang's side, heard Su Yang's vigilant voice and observed Su Yang's performance, immediately asked in shock: "Can you hear it?"

Su Yang looked at Han Zhenghai in confusion, showing a bit of inquisitive look.

Han Zhenghai said with a serious expression: "None of us knows the source of darkness, including the three early masters and the Three Qingshens who jointly explored it, and they also returned home in a desperate situation, extremely afraid and unable to find any substantial information. Combined with the only little bit of information, the only thing that can be confirmed is what is in the darkness."

Su Yang immediately grasped the key to the problem and asked tentatively: "It has to do with these sounds?"

Han Zhenghai nodded cautiously and said, "That's right! According to research, some people with special physiques, or those with relatively strong and special souls, can hear some sounds in the dark, as if countless people are talking, but they don't know what they are saying. For this, we call it - unaudible."

"Isn't it heard?" Su Yang murmured softly, and seemed to notice something vaguely.

Han Zhenghai told him in a very serious manner: "Yes! Not listened! Because everyone who couldn't control the curiosity in his heart and went to explore these sounds, they all went crazy in the end, their consciousness was confused, as if they heard some despair."

Su Yang was immediately alert. He was curious to explore the source of the sound just now. He immediately decisively closed his keen hearing, restraining his soul and mind, and allowing the erect voice to disappear from his ears.

After seeing Su Yang's behavior, Han Zhenghai said bitterly: "You must pay attention in the future. Not only can you not listen to these sounds, but you should also try to step into the source realm as little as possible. No, I suggest that you do not follow us to explore the source realm and finally return to the protection of the Nine-Level Tower of the Holy Realm. Because under normal circumstances, if you can hear these sounds, our Holy Realm prohibits him from exploring the source realm, because the chance of their madness is far beyond that of ordinary people."

Su Yang carefully sensed his condition, nodded and agreed, "Indeed, I felt a little irritated after listening for a while. It seems that these sounds are even more dangerous than I imagined."

Han Zhenghai immediately took out a crystal clear crystal and handed it to Su Yang, saying, "Come on, check it!"

During the previous study, Su Yang already knew what the crystal handed over by Han Zhenghai represented.

This is the Heart Crystal, a special prop invented by the three masters, specially used to detect a person's mental state. It is divided into five levels: white, blue, yellow, red, and black.

Among them, white represents safety, blue represents mild pollution, yellow represents moderate pollution, red represents severe pollution, and black represents no rescue and falls into a state of complete madness.

So, what does Han Zhenghai mean when he suddenly wants to detect Su Yang's mental state?

Su Yang was not vague. He grabbed the crystal and slowly penetrated his mind and conducted a certain degree of detection of his mental state in accordance with the prescribed method.

As Su Yang's mental power penetrated, the heart crystal began to appear with firework-like dust light, which was beautiful.

However, neither Su Yang nor Han Zhenghai paid attention to the exquisiteness of the light, but carefully observed the color change of the light, slowly moving from the original white toward the blue color, and there were some signs of yellowing.

However, the light did not turn yellow in the end, and finally stabilized on the dark blue, with a little coldness.

Su Yang's mind immediately sank. He never expected that he had just left the Nine-level Tower of the Holy Realm and stayed in the Source Realm for a day. When darkness came, there was a problem with his mental state.

For a moment, even Su Yang's calmness was a little difficult to accept.

Han Zhenghai said with a serious expression: "Do you know why you can hear that sound and are not allowed to explore the source world? Because as long as you hear that sound, the minimum degree is also a blue mental state, which means you are easily affected by the chaos in the source world."

Su Yang took a deep breath and did not respond immediately. Instead, he stared at Xinjing carefully and adjusted silently.

Soon, the blue color of the heart crystal blooming became lighter and lighter, until it turned into a clean white, which seemed to indicate that Su Yang's mental state had completely stabilized.

"Sixteen Breaths!" Su Yang said a number, his expression was not good-looking, and his brows were frowning together.

Han Zhenghai sighed: "Yes, when danger comes, there is no time to give you a chance to adjust your state. At that time, it will be like a tight string, shooting arrows, forcing you to keep sinking into it."

Su Yang asked: "Is there no way to close the mind and avoid the chaos all the time?"

Han Zhenghai shook his head seriously and replied: "No, because this kind of power is omnipresent, even if it completely seals up its five senses, it will still be affected."

Su Yang said thoughtfully: "In other words, only by constantly strengthening one's own mental power and strengthening one's own soul can we avoid the invasion of this power."

Han Zhenghai shook his head again and said, "On the contrary, the stronger the soul and the stronger the mental power, the clearer the chaos you feel. This feeling is as if the more you understand, the deeper you are, the greater the chance of going crazy."

Su Yang said in surprise: "Isn't it listen?"

Han Zhenghai said with a heavy emphasis: "It seems that this is the case. It seems that the more you understand the source world, the higher the chance of going crazy. Not hearing is just one of them. Some situations are called invisible and indescribable. They may become crazy in an instant because they see and say it."

Su Yang said laughing and cryingly: "Isn't this falling into a certain paradox? You need to understand the source world but not understand it, and you will easily go crazy."

Han Zhenghai shook his head and said, "It's not all. The higher the cultivation level, the stronger the resistance, because a powerful practitioner has a very strong willpower and can implement the self in his heart. Therefore, unless he encounters the chaos that suddenly increases in an instant, causing great stimulation to his spirit, some growth is within the controllable range."

Su Yang thought about something and said firmly: "The more you are afraid, the easier it is to get crazy!"

Han Zhenghai clapped his hands and said, "That's right! For example, the Tsai-level is not only because of the existence of this level, but also because they have stubbornly endured the chaos again and again, and have strong enough resistance to chaos."

Su Yang nodded slowly and said, "I understand that in the initial exploration stage of the source world, try to read less, listen less, understand less, describe less, stabilize and ensure your mental state, and generate enough resistance, so that you can better explore the source world. So, do you have specific standards for these?"

Han Zhenghai shook his head and said, "Sorry, there are no specific standards at present, most of them are mainly heart crystals. For example, if you encounter a situation where your mental state will be stimulated to the red or yellow level, and your mental state will remain white, it proves that you have reached the standard of the savage level."

Su Yang asked curiously: "How to test it?"

Han Zhenghai Shen glanced at Su Yang, thought carefully for a moment, and said, "Call Han Yan, follow me."

Su Yang immediately responded happily, and followed Han Zhenghai to leave the room together, knocked on Han Yan's door, and then Han Zhenghai had some simple communication with Han Yan.

Then Han Yan shook his head and said, "No, I'm too hasty, this is very dangerous."

Han Zhenghai replied: "Most crazy people are harmed by their curiosity. So instead of suppressing Mr. Su's curiosity, it is better to let him experience it in person while everything is under control."

After careful consideration, Han Yan said, "Okay, but don't go too far."

Han Zhenghai nodded slowly, and after preparing for a little while with Han Yan, he nodded at Su Yang and signaled Su Yang to follow.

Later, under the leadership of Han Zhenghai, the group came to the top of the stronghold.

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Chapter completed!