"What's the meaning?"

Chu Yan was stunned for a moment, then looked around, and then his brows frowned tightly.

At this time, the surroundings were surrounded by mountains and the stone walls looked very smooth, which was not something that humans could climb up.

But soon his brow raised, and he looked at Bai Tu and said, "We can use it to go up!"

"I'm thinking too much!"

Bai Tu chuckled at this time, then looked at Chu Yan and said, "Didn't you realize that your martial arts can't be used at all during our time?"

"indeed!"

Chu Yan nodded, thinking about the situation where his brain was blank at that time, and he couldn't help but say, "What's going on?"

"If I guess correctly, this is a very difficult echo wall to see!"

Bai Tu looked around, and his blue eyes were shining with a brilliance: "This thing exists naturally. The spiritual power in it changes due to the changes in the aura. Any movement of wind and waves can produce a terrifying sound wave!"

"Sound wave?" Chu Yan couldn't help but raise his eyebrows.

"That's right!"

Bai Tu nodded slightly and said, "You mobilized your spiritual power before, because of the fluctuations of spiritual power here, it has had a certain impact on you. If the master comes down, it will be even more amazing!"

"Generally, places like this are for punishing people who have suffered great mistakes in the sect!"

Bai Tu paused when he said this, and after a round of eyes, he said, "And the punishment is only one hour, but the more it is three hours!"

"And the punished person is in a trance after coming out of the echo wall, and usually cannot hear the outside world's voice for three days!"

Bai Tu said this, her blue eyes floated, and then said, "The effect in this echo wall should be stronger. This is the first time that the rabbit has seen such a huge echo wall, which is interesting!"

Chu Yan was stunned for a moment, too lazy to talk nonsense. He mobilized his spiritual power and stomped his right foot, rushed towards the high place while surging in the air.

But at this moment, an extremely harsh sound rang out at this moment, passing through the mind and coming to the depths of the soul.

In the blank space, Chu Yan's body trembled and he fell down.

The pain restored his awakening and looked at Baitu and said, "Is this the sound wave you just said?"

"yes!"

Bai Tu nodded slightly and said, "This sound wave is not something that ordinary people can bear!"

He said, chuckled and said, "You should be prepared to stay here!"

"Of course, you can choose to wait for someone to save you!" Bai Tu added: "But the echo wall here is too big, and the hope for those who come is slim!"

Chu Yan was stunned for a moment and smiled bitterly. If he had known this, he would not jump down without saying anything.

There may be some chance of staying above, but here...

While thinking, Chu Yan suddenly thought of something and walked straight towards the mountain wall.

When you come to the mountain wall

When he was ahead, Chu Yan's essence floated, his right hand spread out, and the extremely sharp sword energy began to riot at this time.

When he held it tightly, a golden sword appeared in his hand.

In a fierce explosion, he cut towards the mountain wall.

A harsh sound of running-in sounded, and a trace appeared on the mountain wall as the golden light filled it.

"Tsk tsk, this sword is indeed terrifying!"

Bai Tu stood on Chu Yan's shoulder, his expression was full of surprise at this time: "This stone wall is baptized by sound waves all year round, and because the spiritual power here is affected by the sound waves, it has also been integrated into the stone wall!"

"It can be said that this stone wall is extremely hard. If the sword in the patrol is slashed, there will definitely be no residue left!"

"Is that strong?"

After hearing this, Chu Yan quickly looked at his sword. When he saw that there was nothing, he felt at ease, but soon smiled bitterly again, but soon his eyes looked at Bai Tu and said, "Look at you are not nervous at all, is there any way?"

That's right, Baitu doesn't seem to have that kind of nervousness at this time. It's a dead end to this place, so it shouldn't be like this.

"Hey!"

Bai Tu smiled and said, "There is no good idea, but there is one in common!"

"What's the solution?" After hearing Bai Tu's words, Chu Yan couldn't help but look curious on his face.

"The Echo Wall is quite terrifying, but it also has certain benefits!"

Bai Tu said with a smile: "Exercise here can enhance the soul body!"

"Soul body?" Chu Yan couldn't help but raise his eyebrows.

"That's right, the soul body can be said to be the source of soul power!"

Bai Tu explained: "The stronger the soul body, the better the ductility of the soul power... Aren't you going to make that soul puppet? If you hone it here, I think it will be much smoother! At least the risk will be reduced."

Chu Yan said strangely: "Then are you here in the right place this time?"

"That's right, you hit me by chance!" Bai Tu shook his head and said, "But the danger in this sound wall is quite great. If you are not careful, your soul body will not improve, and there will be problems."

"Opportunities always coexist with risks..."

Bai Tu chuckled and looked at Chu Yan and said, "But you have no other choice, there is no way except this!"

"It's also coming, it's also coming if you don't, so let's fight!"

Chu Yan looked up at the smooth stone wall around him, and his face showed a firm look, and he sat down cross-legged.

"what you do?"

Bai Tu couldn't help but speak curiously when she saw Chu Yan suddenly like this.

"Trial!" Chu Yan responded.

After hearing this, Bai Tu immediately smiled and said, "How big can the sound waves mobilized by your own spiritual power? They will not be effective in tempering you!"

"That……"

When Chu Yan was about to say something

Baitu's voice sounded again, and he said with a little sneer: "It's not too dark yet. Let's wait. When it's late at night, there will be wind, and it will be quite small. The effect of this wind stirring the echo wall is so strong!"

As he said that, he looked at Chu Yan in a playful tone and said, "So you either persist or die, and you have no choice!"

Chu Yan was stunned for a moment, then said strangely: "Can you..."

"The Rabbit is not a spirit beast, he is not a human at all, he will only be affected a little bit!" Bai Tu smiled disdainfully.

After hearing this, Chu Yan felt relieved and looked up at the darker night, and his fists couldn't help but clenched.

I'm still a little nervous...

Bai Tu looked around, it didn't take long before, and slowly spoke: "It's windy..."

"Um?"

Chu Yan raised his eyebrows. Although he had nothing on his face, his tight hands could tell his inner tension.

"Relax, the more nervous you are, the more likely you will have problems!"

Bai Tu saw Chu Yan's condition and said, "The wind is still small now, not enough to pose a threat to you, and the sound waves slowly increase with the wind, so don't worry!"

Chu Yan nodded, adjusting his breathing, and trying his best to make his own relaxed.

As time passed, Chu Yan gradually felt like tinnitus sounds, and the sound was continuous and gradually getting louder, making people full of very irritable emotions.

Bai Tu remained silent throughout the whole process, and did not speak, and stayed quietly on Chu Yan's shoulder.

The sound waves gradually became bigger at this time, and the tinnitus sound directly penetrated the mind and entered the depths of the soul.

Chu Yan held back, his face looked pale.

"Stay up!"

Bai Tu said at this time, and his voice sounded obviously serious.

It said it was very easy before, but it didn't want Chu Yan to retreat early. The real situation would be more difficult than it said.

Only by experiencing it yourself can you know the horror.

Chu Yan nodded slightly, but he didn't say anything, because now he doesn't have the intention at all.

The night became darker and deeper, and the wind began to whistle above the mountain.

The location of the echo wall is very special, with three highs and one low shape, just so that all the winds poured in.

Chu Yan was at the bottom of the echo wall at this time, and his feelings were very strong. The sound waves entered his soul. The pain was not a physical pain.

But it is a pain that reaches the soul...

Blank, blank, constant blank!

Trance! In a mental trance, he didn't even know where he was.

think?

Now he can't think of anything, that pain and discomfort, he has the heart to die, but... he just can't move at all.
To be continued...