The valley is not large, only a hundred zhang in size. There was a white mist in the valley, and it was so white that I couldn't see it clearly.

Lei Yu was already in the valley at this time, and what appeared in front of him was a huge circle array, which was engraved with all kinds of strange runes, dense, but contained a strange fluctuation, as if it would be destroyed as long as it was touched.

This is the Thunder Pool, which does not have any pool of water, but a huge thunder array that gathers the surrounding thunder qi and forms a place for the disciples to break through. Although this thunder array does not seem to have the slightest peculiarity at this moment, if you walk into this thunder array, there must be a different scenery.

Lei Yu stood on the edge of the thunder array, carefully watching the entire thunder array. For Lei Chi, he only learned some from some ancient books, but now he has a different feeling when he is in this Lei Chi, and he can't understand it at all.

The thunder pond is not big, located in the center of the entire valley, only the size of a radius of dozens of zhang, but it is the size of this dozens of zhang is the essence of the entire valley.

"Hey, these runes seem to be lightning runes, and they seem to represent some lightning seeds. Lei Yu watched these runes carefully, but he was constantly thinking about them in his heart.

His qualifications are not good, in addition to cultivation in the past three years, he is also very interested in some ancient books and strange books, and his knowledge has increased a lot in his spare time. In addition, with the care of Elder Tongxuan, he even dabbled in some solitary books and Strange Stories, which was much more than that of other outer disciples.

"The rune there is a small tree, verdant, does it represent Aoki Lei?" Lei Yu's eyes looked at the rune like a small tree, and his mind was full of thoughts, combined with the books he had browsed before, Lei Yu also had a rough judgment in his heart.

"That's the golden iron thunder, representing the strongest thunder in the world. Lei Yu turned his head to look at a small sword-like rune. This rune resembles a small sword, but it exudes a fierce aura, as if it is ready to choose someone to eat at any time.

"That's the Earth Fire Thunder......" Lei Yu found it again, his eyes staring at a flame-shaped rune, and the surprise in his eyes flashed.

His eyes swept over to the other runes again, each representing a kind of thunder. Lei Yu secretly noted that some of these runes Lei Yu recognized, but more Lei Yu had never seen them. Although he didn't know what these runes represented, it wasn't a bad thing for him to remember more.

Lei Yu carefully checked these runes, there are a total of seventy-seven and forty-nine runes, which means that there are forty-nine kinds of thunder contained in this thunder array, which can be described as extremely complex, and these runes are the core of the entire thunder pool.

"These thunder seeds were originally carved by the ancestor when he built them, after so many years, the power of the runes has not decreased, and even after absorbing the surrounding thunder energy, it is no wonder that no one has been able to survive the 'thunder tribulation' in the thunder pool for so many years. "Although Lei Yu has not yet cultivated to the thunder qi stage, the nourishment of thunder qi for many years has also made him sensitive enough to thunder qi, and he also has some calculations about the power of this thunder pool.

Just to be able to break the constitution against the sky, Lei Yu has no choice but to fight against the water, whether it is success or failure, in one move. For Lei Yu, this is the most difficult opportunity.

"Fortunately, this Thunder Pool can only be used for the Thunder Qi Period and the Thunder Gang Period Breakthrough, otherwise the door would definitely not be so negligent and placed this Thunder Pool in such a barren place, just for me to cultivate. When he came to Lei Chi, Lei Yu's mood calmed down, he was not shocked, and even laughed at himself.

Although this thunder pool was built by the ancestor of the Zixiao Sect, the effect of the thunder pool is only useful for those cultivators in the Thunder Qi and Thunder Gang periods, but it has no effect on the higher realms. Coupled with the terrifying power of the Thunder Pool, the shadow left in the hearts of ordinary disciples was too heavy, so that no one cared about the Thunder Pool, and the Zixiao Sect was also unattended, so they finally placed this Thunder Pool in this barren place.

"Well, it's time to enter the Thunder Pool. Lei Yu looked at the sky, a round of golden sun rose, sprinkled with golden light, dispelled a lot of dense fog in the valley, leaving only a faint layer of mist, from the outside, you can vaguely see the figure inside.

Walking into the thunder pool, Rao is Lei Yu was already ready, but he was still startled by the scenery in front of him. I saw that the huge circular thunder array suddenly flashed out of golden light, and the golden light sprayed thin, and soon the entire thunder pool was wrapped and shining, which was extremely dazzling.

The golden light shot straight into the sky, gradually spreading to the sky, and gradually stopped more than a hundred feet from the ground, isolating Lei Yu from the outside world. Then these golden lights converged towards the center, slowly turning into a golden disk, and countless thunder and lightning runes flickered. Each rune represents a kind of thunder, and forty-nine runes are gathered together, colorful and unusually bright, but they also seem a little bizarre.

"The thunderstorms are starting to converge, and this place is about to become a Jedi, cut off from the outside world, forming an isolated space, and I should prepare as soon as possible. After experiencing the previous panic, Lei Yu calmed down again and faced it calmly.

With both hands pinching, Lei Yu ran the "Aoki Thunder Jue", and a cyan thunder air flow suddenly formed around his body, which entered Lei Yu's body, and then dispersed again, unable to stay in Lei Yu's body at all.

"I don't know what kind of 'Thunder Tribulation' will be next?" Lei Yu didn't care about the rapid loss of Aoki Thunder Qi in his body, this was due to the physique of his Nine Shadows Body, and he had long been used to it. What he is most concerned about at the moment is the next "thunder tribulation".

"Boom!" Suddenly there was a loud thunder in this space, and pieces of calamity clouds gathered, making people's hearts sink, and a great majesty began to spread, making Lei Yu feel a chill unconsciously.

This is the majesty of the sky, it is difficult to resist, just under this majesty, Lei Yu felt a burst of shock, and he also had some worries about the next "thunder tribulation". It's just that no matter what, Lei Yu at this time has no way to retreat, and can only go all the way to the dark, and has no choice.

There was a hint of determination in his eyes, looking high in the sky, an unyielding will spread in his body, blazing, he wanted to fight with this sky, to break free from the shackles of fate.

The clouds gather more and more, layered above the sky, containing a powerful force, once launched, it will descend with the momentum of thunder and launch an attack on the thunder feather.

Lei Yu was deep in this space, his eyes stared at the sky, even if the "thunder tribulation" was bursting, he was not afraid.

"Boom!" The thunder rang out, and the majesty of the sky was constantly spreading, wanting to affect Lei Yu's mind. It's just that Lei Yu's heart is the same, and he is not shaken by the majesty of this sky.

"Come on!" Lei Yu stood up straight, his thin body looked thin and unbearable in this thunder tribulation, but there was a majesty deriving, opposite to the majesty of the sky.

"Thunderbolt!" finally there was movement in the clouds, and in an instant, the thunder roared, the golden light was shining, the heaven and the earth were shrouded in a piece of golden light, and a heavenly pressure rose from the bottom of Lei Yu's heart.

He tried his best to suppress that majesty, but he still felt a little frightened, this "thunder tribulation" was definitely not simple.

In Lei Yu's eyes, a golden pillar of light was clearly visible, the size of a fist, exuding a fierce aura, and the power contained in it could not be despised by Lei Yu, and a cold aura rose from Lei Yu's heart.

Before Lei Yu could react, that golden pillar of light descended on Lei Yu's body, and in an instant, Lei Yu felt a pain to the bone, as if all the bones in his body were broken.

It was a feeling of a thousand cuts, as if thousands of blades were cutting through his body. He only felt that he was simply unable to resist, and his whole body was in pain, and then, he felt a burst of numbness, and his whole body lost consciousness, as if his whole body did not belong to him.

"What kind of 'thunder tribulation' is this, such a pervert. Lei Yu couldn't help but complain, at this time, his whole body was covered with blood, like a bloody person, quite terrifying.

I have to say that this first "thunder tribulation" is really a bit perverted, making it almost difficult for Lei Yu to resist. He was just a mortal, and he was almost dead under such a powerful "thunder tribulation", which was too terrifying.

"No, I still have to use the power of these 'Thunder Tribulations' to break the shackles of the Nine Shadows Body, and I must not fall down at this moment. Lei Yu's head was a little dazed, but that thought did not waver in the slightest.

At this moment, his whole body was bloody, but what was more serious was the inside of his body.

Under this golden "thunder tribulation", more than thirty percent of the meridians in his body were destroyed. If he can't get rid of the "Thunder Tribulation" power that entered his body as soon as possible, I'm afraid he won't be far from death.

He bit his lip, and it wasn't until the blood flowed that he was fully conscious. Subsequently, he began to run the "Aoki Thunder Jue", guiding the power of the "Thunder Tribulation" into his left foot, which is where the Heavenly ** Aperture is located.

The power of the "Thunder Tribulation" is much stronger than Aoki's Thunder Qi, and this operation is also extremely difficult, each operation will consume his great mind, and a little carelessness may even cause injuries in his body, causing greater damage.

"Poof!" Lei Yu spurted out a mouthful of blood, but it was when he accidentally touched the damaged meridians when he was running the "Aoki Lei Jue", and his face became extremely ugly at the moment, he couldn't bear it, and finally spurted out a mouthful of blood.

"The amount of this 'Thunder Tribulation' power is really extraordinary, much stronger than the thunder power I usually absorb, and it stays in my body for a much longer time. If I gather the power of these 'Thunder Tribulations' into the Heavenly Aperture, I'm afraid I may really be able to break the shackles of the Nine Shadows Body. Lei Yu's body was traumatized, but there was some excitement in his eyes.

He had just run "Aoki Thunder Jue", and he felt something different right away. The power of this "Thunder Tribulation" is more pure, and the time spent in his body is also greatly increased, so that he can gather more "Thunder Tribulation" power, break through the heavens, and achieve the Thunder Qi Period.