The cave was dark but dry, but the deeper you got, the damp air became.

"Tick!"

Chu Yunfeng heard the sound of water, and only then did he turn a small corner, and he saw an elixir flowing with a radiant light, growing in the stalactite pool, the trunk was blue, and the top exploded, just like a scattered cactus.

"Thunder Grass!" exclaimed the one who followed behind, his eyes widening.

"What is Thunder Grass?" Chu Yunfeng on the side was full of doubts, he had never heard of this name.

"Tsk, your luck is really against the sky, this can be met by you. ”

Liu Yunhuan looked at Chu Yunfeng, looked at the thunder grass, and said with amazement, "Although this kind of grass is a first-class herb, it is extremely rare, and generally only exists in some places where the thunder attribute is relatively concentrated. ”

"Is this helpful for my cultivation?" Chu Yunfeng asked curiously, this grass looked quite strange, but he couldn't see what it did.

"Originally, I wasn't sure about your Heavenly Thunder Quenching Body, and if you make a mistake, you will definitely die. But with this thing, I'm 90% sure that I can save your life. Liu Yunhuan's face was full of joy, and he looked like he was in his chest.

"This ...... It's amazing that this grass can save my life. Chu Yunfeng stared at this little grass and looked at it a few times, and he really couldn't understand how it could protect itself under the thunder.

"It's a pity, it's only been a year and a half, and it's not mature enough. Liu Yunhuan said with some pity.

"Not mature enough?" Chu Yunfeng looked at him.

"Normally, it takes a hundred years for the Thunder Grass to mature, and the ability of the mature Lightning Grass to resist lightning is a hundred times stronger than it is now, so I can give you a more powerful Heavenly Thunder, and instantly achieve the best effect of the Heavenly Thunder Quenching Body!" Liu Yunhuan explained carefully.

"Best effect?!" Chu Yunfeng's eyes widened, how strong should the best effect of the Heavenly Thunder Quenching Body be, Chu Yunfeng was very excited.

"It takes a hundred years to mature. Thinking of this, he couldn't help but feel a little discouraged.

"Naturally. Liu Yunhuan glanced at him, slowly walked to the edge of the pool, dug out the entire thunder grass along with the soil, and gently sniffed it close to the tip of his nose, "The medicinal effect should be initially enough." ”

After Liu Yunhuan took away the Guiding Thunder Grass, Chu Yunfeng glanced at the cave, he explored the pool again, and after confirming that there was nothing else, he walked out satisfied.

Follow Liu Yunhuan to the top of a mountain, which is one of the highest peaks around, the top of the mountain is made of a whole large stone, Liu Yunhuan came here, closed his eyes and sensed for a moment.

"Well, this is the center of the concentration of the surrounding lightning elements, and the success rate of arranging a mine-guided array here is relatively high. Liu Yunhuan explained in a low voice, and then erected the lightning grass on the ground, and the roots of the grass were grasped on the boulder in the shape of an octopus.

"Now I'm going to start arranging the Lightning Array, which is a second-level spirit array. The second skill of the spirit rune master is that he can arrange various spirit arrays, and if the environment is suitable, the power of the spirit array can be doubled. The spirit array is also the most powerful means of attack for every spirit rune master, as long as there is a suitable environment and enough time, a spirit rune master with strong spirit array ability can single-handedly destroy a large sect of 10,000 people, which is also one of the reasons why others dare not easily provoke the spirit rune master. Liu Yunhuan observed the shape of the big stone while explaining like Chu Yunfeng.

"Spirit Array?" Chu Yunfeng had never heard of this thing, maybe it was because Donglin City was too small, and this kind of high-level thing had never appeared here. Some of the power of the amazing spirit array, this is a big killer, if you learn this, you must be able to destroy the Tao and Zhao families in the east of the city by yourself.

After explaining, Liu Yunhuan drew a circle with the thunder grass as the center of the circle two meters away from the lightning grass, and after drawing the circle, he made four grooves in the four directions of southeast, south, and northwest, and then spit out four shiny stones from his mouth and put them into the four grooves. Eventually begin to scratch around the inside of the circle with your claws.

I was a little curious about Liu Yunhuan's strength, and I didn't see what strength Liu Yunhuan used, but every time the claw slashed, there would be a notch about a foot deep, and after half an hour, Liu Yunhuan stopped, and at this moment, the entire circle was full of nicks, and these nicks were combined to become an incomparably mysterious rune.

"Okay, you go into the Spirit Array, and sit down close to the Guiding Thunder Grass. Liu Yunhuan, who had drawn the spirit array, asked Chu Yunfeng to enter it.

Chu Yunfeng did not resist in the slightest, entered the spirit array according to his words, and sat cross-legged close to the Thunder Grass. At this moment, perhaps because the spirit array had not yet been opened, Chu Yunfeng did not feel the slightest strangeness.

Liu Yunhuan looked up at the sky, there was no cloud, sighed lightly, lay on the stone and began to sleep.

"Master, it's time to start, I'm ready. Finding that Liu Yunhuan suddenly stopped moving, Chu Yunfeng was a little anxious for a while.

"Don't worry, wait for a dark cloud to start. Liu Yunhuan's eyes were not opened, and he said weakly.

"But...... Hey" Chu Yunfeng was a little anxious, but now he could only listen to Liu Yunhuan's orders.

Half a day passed quickly, maybe the heavens realized Chu Yunfeng's heart at this moment, and a black cloud floated over.

"Master, master, there are clouds, there are clouds!" The first time he discovered the dark clouds, Chu Yunfeng couldn't wait to yell at Liu Yunhuan.

Liu Yunhuan slowly moved his posture, his claws shook forward, and he saw that the spirit array began to light up in an instant, and it was strange to flicker and flash.

Chu Yunfeng, who was in it, sensed more water vapor around him at the moment when the spirit array shone, making his eyes slightly blurred, and the Guiding Thunder Grass around him seemed to like this environment very much at the moment, shaking the stalks one by one.

"Alright, it's about to start, you have to think about it, it's life-threatening. It's still a hurry to quit now!" Liu Yunhuan said as he stretched out his right paw and pointed at the dark clouds in the sky.

"Master, come on. Chu Yunfeng bit his lower lip, and a trace of determination flashed in his eyes. I still have so many things to deal with, how can I waste time casually, I must improve my strength faster, defeat those who bully me as soon as possible, and take back Shuangshuang!

"Hey, hey. Liu Yunhuan smiled with satisfaction, his mouth opened, and another crystal was spit out and put into the spirit array, "Actually, you earned it, this is a waste of a lot of spirit stone energy, there are few people in the world who have this kind of treatment." ”

"Huh?" Liu Yunhuan's somewhat gloating voice made Chu Yunfeng's eyelids jump, and his whole body trembled suddenly.

Sure enough!

"Whoa!"

Liu Yunhuan's claws burst out with silver lightning, and with a demonic smile, he swung vigorously towards the spirit array, "Here, you enjoy it!"

"Ah!!h

A terrifying cry of ghosts and gods came from the big rock on the top of the mountain, startling countless birds in the mountain, and the beasts in the mountains suddenly roared again and again, and there was a lot of noise.

"Uh-uh"

Chu Yunfeng fell to the ground, his body twitching again and again, but he barely foamed.

"Hey, hey. ”

Liu Yunhuan on the side looked at all this with a comfortable face, and his eyebrows were full of happiness.

"Hey, you can't stand it anymore, hurry up!"

It shouted happily, "You chose the path yourself, and you will grit your teeth and support me when you kneel......"

Before she finished speaking, Chu Yunfeng had already stood up tremblingly.

"Whew"

His breathing slowed down from rapid to slow, and after a little, he was almost recovered.

"Come again!"

Chu Yunfeng's voice also had some trills in it, obviously, this thunder and lightning was not pleasant.

"Hmph!

Liu Yunhuan snorted coldly, and silver thunder and lightning lit up again on his furry claws, and he swung towards the spirit array again.

"Boom!" another bolt of lightning fell from the dark clouds, and it accurately slashed into the lightning array.

"Ah!!h

Although Chu Yunfeng was already trying his best to endure it, he still screamed miserably.

The electricity was like a sharp blade, cutting at every muscle in his body, and he only felt as if his whole body was about to be torn apart, the pain was unbearable, but he would not fall unconscious.

Circling like this, Chu Yunfeng didn't stop, he knew that the longer he endured it, the greater the improvement he would be, and he had only one belief in his heart, that is, to persevere!

Don't be a weakling!

"Yes, I lasted almost half an hour. ”

The pleasure on Liu Yunhuan's face had also disappeared, and looking at Chu Yunfeng who had fallen to the ground, she kept muttering in her heart, "Strange, how could he hold on for so long?"

"It seems that this kid's strong heart has been formed. Liu Yunhuan showed a relieved expression.

This is the second time that Chu Yunfeng has endured it, and he has persevered for half an hour, which shows that the young man's heart is very tenacious, and his perseverance is even more than ordinary people.

A cool breath flowed through his body, the pain in his muscles was slowly withdrawing, and Chu Yunfeng slowly stood up again.

"Crackle!"

With a shake of his body, his muscles shook, his bones rubbed, and he made a crisp sound. After withstanding two electric shocks, Chu Yunfeng clearly felt that his body was rapidly becoming stronger again at this time.

"Sure enough, it's fast!"

He couldn't help but be a little happy, the washing of thunder and lightning was indeed the best way to temper the flesh, and it was also the fastest way!

But how can ordinary people bear this?

Thinking of the pain just now, Chu Yunfeng still shivered coldly.

"Take a break!"

As he spoke, Chu Yunfeng lit a fire, took care of the previous fire-haired rabbit, and then barbecued it, and after a while, the meat was fragrant.

He needed to use meat to hide the pain in his body at the moment, so that he could persist in his subsequent cultivation!

"Master, do you want it?

Chu Yunfeng tore off a small piece with his hand and handed it to Liu Yunhuan.

"I don't want it, I feel like take it away!" Liu Yunhuan turned his head.

"Don't forget it. ”

Withdrawing his hand, Chu Yunfeng tore off a large piece of meat and gnawed there, eating extremely crazy, like a tiger wolf.

"Hmph!" Liu Yunhuan snorted lightly, but his eyes glanced at him unconsciously.

"No, it's that delicious?"

Looking at Chu Yunfeng's beautiful gnawing, Liu Yunhuan couldn't help but be a little puzzled.

"Give it a try!"

Feeling the passage of time, unconsciously, its stomach was also a little hungry.

"Wow. ”

Chu Yunfeng tore off another piece from the skewer, took a clean wooden stick and skewered it, and handed it over.

Liu Yunhuan wrinkled the tip of her nose and sniffed it carefully, confirmed it, and then tore off a small piece and put it in her mouth, chewing it carefully, she didn't know if she was hungry or what, she felt that it was very flavorful, so she also moved her claws to tear it up.