For the next few days, Lei Yu stayed in Elder Tongxuan's mansion to consolidate his strength. His cultivation has become more and more profound, and the origin of thunder power is very strong, much stronger than any ordinary cultivator. Not only that, but his physical strength was also much stronger after the "Thunder Tribulation", which was difficult for other cultivators to compare.

Originally, Lei Yu learned in the process of talking with Elder Tongxuan that although the Nine Shadows Body was a waste body, it was not useless. The physical body is extremely powerful, and the essence is vigorous, even if it is not far behind the cultivators. Now, Lei Yu's body has been tempered by the thunder pool "Thunder Tribulation", and has been integrated into the power of the Thunder Tribulation into the body, which is stronger than before.

At this time, in a room, Lei Yu sat cross-legged, holding a stone that shimmered with golden light. This stone is the same as an ordinary stone, but the whole body is exuding a thick thunder energy, crackling, it is a thunder source stone.

Thunder Source Stone, as the name suggests, is a strange stone that can store thunder energy. Generally, it can only be produced in places where the thunder is thick, and when it is excavated by the cultivator, it can directly absorb the thunder energy in the thunder source stone, which is equivalent to carrying a small thunder vein with them. Of course, the thunder energy contained in this Thunder Source Stone is also limited, and generally one Thunder Source Stone can only be used for two or three days of cultivation by cultivators.

Therefore, this Thunder Source Stone is quite important among cultivators, and it is a common currency. You can buy many precious cultivation materials with Thunder Source Stones, and it can be said that as long as you have Thunder Source Stones, anything can be bought. Of course, this is not the case, and there are many precious objects that cannot be measured by thunder source stones, but this also shows the importance of thunder source stones.

The thunder source stone flashed with golden light, and the thunder energy inside the stone was continuously absorbed into the body by the thunder feather, entered the heavenly ** aperture, and transformed into its own thunder power. Around the heavenly ** aperture, the three ** apertures are surrounded, and they are also swallowing thunder qi and transforming it into their own thunder power. However, the remaining seven ** apertures were completely unresponsive and did not open, and they could only wait until Lei Yu's own realm was improved to break the remaining acupoints.

He closed his eyes, his expression was calm, and he continued to absorb the thunder qi in the Thunder Source Stone into his body. After a moment's effort, the golden light flickering on the Thunder Source Stone became a little thinner. This is not to say that the amount of thunder contained in the Thunder Source Stone is very small, but the speed of Thunder Feather's absorption is too fast, so that the speed of Thunder Source Stone's supply is somewhat inferior to the speed of Thunder Feather's absorption.

Lei Yu broke the restriction of the Nine Shadows Body, and the amount of power required was extremely terrifying, and it consumed the power of the eight Thunder Tribulations. It was only with so much thunder tribulation power that he was able to advance to the thunder qi stage, which gave him a certain understanding of the future cultivation path, compared to ordinary cultivators, the thunder qi strength required for him to break through was much greater, and it was not comparable to ordinary cultivators at all, but after breaking through, his strength was much stronger than that of other cultivators.

There are gains and losses, it is difficult to break through, and after the breakthrough, the strength is strong, this is Lei Yu's understanding of his own path. Although the restriction of the Nine Shadows Body was broken by him, the road after that was also very difficult, and he needed to spend more energy to move forward.

"No, I've absorbed ten Thunder Source Stones in the past few days, but it has no effect at all. The fourth ** trick can't be broken for a long time, it seems that the thunder power I have accumulated is not good enough, and I need more thunder power. Thinking about the thunder qi he needed to advance to the thunder qi stage, Lei Yu had a headache. Although it is said that the amount of thunder required after reaching the thunder gas stage is much reduced, this is only relatively speaking, and the amount of thunder required is also difficult to measure.

Lei Yu stopped cultivating, the cultivation in the past few days did not make his cultivation further improved, it only made the thunder power in his body more refined. At this time, he felt as if his body was filled with an explosive force, his vitality was infinite, and his whole body was full of energy, which was very powerful.

Put the remaining Thunder Source Stones into the space bag, after all, there are not many Thunder Source Stones given to him by Elder Tongxuan Tongxuan, so they must be spared. After a while, a book with a golden platinum cover appeared in Lei Yu's hand, which was the "Five Elements Thunder Sutra" that Elder Tongxuan had given him. According to what Elder Tongxuan said that day, once this "Five Elements Thunder Sutra" is cultivated to the level of the Five Elements Thunder Gathering, it can summon the Great Five Elements Thunder, and even open a sect.

For what Elder Tongxuan said, Lei Yu naturally believed it. Looking at this ** with some surprise, Lei Yu couldn't help but look forward to what kind of book this "Five Elements Thunder Sutra" is**.

**There are also high and low levels, and there are also grading. The difference between high-level and low-level cultivators is worlds apart, and although some cultivators are not in a high realm, they can also defeat high-level cultivators with their advanced **.

His previous cultivation was the "Aoki Thunder Technique", which was the lowest **, and the Aoki Thunder was also quite popular, more than 108,000 miles worse than the treasure of the Zixiao Sect's Zhen Sect, the "Zixiao Thunder Sutra". Now, this "Five Elements Thunder Formula" is in front of him, and Lei Yu will naturally not let it go.

Turning over the "Five Elements of Thunder Sutra", Lei Yu sank into this book. He is not in a hurry to cultivate now, but first skimmes this **, and then cultivates. In the past three years, he has been like this, which can allow him to have a deeper understanding of ** and better cultivation.

Seeing this, Lei Yu was completely immersed in the "Five Elements of Thunder Sutra", carefully studied, considered the words, and thought in his heart. The words in the "Five Elements Thunder Sutra" seemed to contain magical power, and he didn't want to leave for a moment.

"The five elements are the foundation of heaven and earth. Gold, wood, water, fire and earth, the five elements are born together, chaotic yin and yang, and the aggregation can achieve the great five elements of thunder, which is infinitely powerful and powerful, galloping the world and the world. "This is the beginning of the "Five Elements of Thunder Sutra", just this line of words, but majestic, golden light flashing, there is a hidden divine thought, you can imagine the ambition of the person who created this **.

"This must have been created by a master, otherwise it would not have been possible to leave such words. This tone is overbearing, and only that kind of overlord can write it. Lei Yu sighed a little, when he was reading this opening just now, there was a groggy feeling in his mind, and he wanted to sleep, this is the breath emanating from these words, it is a kind of divine coercion, you can imagine how powerful the person who created this ** is.

"I'm really looking forward to what's next, don't let me down. Lei Yu held back the surprise in his heart, and then looked down.

His face was sometimes happy, sometimes distressed, sometimes thoughtful, and in a short period of time several expressions changed, but his head never lifted, and he kept looking at the book without a trace of impatience. He was completely immersed in the world realm of the Five Elements Thunder Sutra, and only himself was left.

"This "Five Elements Thunder Sutra" is also very simple, it is nothing more than cultivating the Five Elements Thunder to the peak and evolving into a higher level of Five Elements Thunder. Cultivating to the apex, the Five Elements Thunder constitutes the Five Elements Portal, which communicates with the Five Elements World, generates infinite power, and achieves the Great Five Elements Thunder. Lei Yu muttered to himself, saying his thoughts on the Five Elements Thunder Sutra.

It's just that soon, he fell into deep thought again, bowed his head and said nothing, looking for something in the "Five Elements Thunder Sutra".

"It's neither simple nor simple, this "Five Elements Thunder Sutra" does have something extraordinary. Lei Yu laughed to himself. This "Five Elements Thunder Sutra" is simple to say, but it is not so when it comes to cultivation.

Just to evolve these five elements of thunder into a higher level of five elements of thunder, the number of five elements required is unimaginable, and it is difficult to collect the power of one person.

Moreover, even if these five elements are collected and evolved into a higher level of Aoki Supreme Thunder, Golden Iron Qiankun Thunder, Heavenly Fire Black Plains Thunder, Clear Water and Blue Sky Thunder, and Thick Earth Boundless Thunder, it is even more difficult to form these five element thunders into five portals. And the most difficult to bring these five elements of thunder together, it is unimaginable, after all, these five elements of thunder attributes are different and conflicting with each other, if you want to fuse perfectly, it is impossible without absolute strength.

"This "Five Elements Thunder Sutra" is indeed not simple. If I can practice this "Five Elements Thunder Sutra", I can even start a sect, and what Elder Tongxuan said is true. Lei Yu was a little excited, he had also heard of the Great Five Elements Thunder, and it was even stronger than the Zixiao Divine Thunder. Once he is trained, he is indeed qualified to start a sect and become a new generation of founding patriarchs.

"Lei Yu listens to the order!" At this moment, a solemn voice came from outside Elder Tongxuan's door. The voice was loud, and it was very clear in Lei Yu's ears. He was startled and realized who it was.

He straightened his robe, walked out of the room, and headed out the door. At this time, Elder Tongxuan was not in the house, and Lei Yu was the only one left.

"Disciple Lei Yu greets the elder. "What appeared in front of the door was a middle-aged man dressed in gray and slightly fat. He was about forty years old, not too tall, expressionless, looking at Lei Yu in front of him. Lei Yu felt his breath, but it was unfathomable, and he immediately knew that the person in front of him must be an elder in the door, and his cultivation was profound.

"You are Lei Yu, the Lei Yu who spent the 'Thunder Tribulation' in the Thunder Pool?" the middle-aged elder asked with some curiosity. Lei Yu survived the "Thunder Tribulation" with the physique of the Nine Shadows Body, and also advanced to the Thunder Qi Period, this matter has spread all over the Zixiao Sect, and Lei Yu has also become the object of discussion within the Zixiao Sect. And the middle-aged elder also came here because of this, just to be able to take a look at this Lei Yu.

"Yes, it's the disciple. Although Lei Yu was a little strange, he still replied seriously.

"It's no different!" the middle-aged elder muttered, his voice was very small, and he was not heard by Lei Yu. Then, he straightened his expression and said, "Outer disciple Lei Yu has reached the third level of the Thunder Qi Stage today, and according to the door rules, from now on, he will officially become an inner disciple of the Zixiao Sect." ”

Although he knew that he would enter the inner gate soon, hearing the news, Lei Yu's heart was still excited, and he said, "The disciple respectfully obeys the orders of the elders. ”