After Su Yi and Leng Qingyue had searched all the disciples' rooms, they came to the main hall.

At this time, the entire Kunwu Immortal Mountain trembled, and there were countless ghost kings outside attacking the mountain guarding array.

The main hall was very open, and Su Yi estimated that it was about four or five times the size of his county office.

The walls and floor of the entire palace are paved with some special materials, and the aura in the entire palace is very rich.

Su Yi estimated that just cultivating in this palace might be twice as fast as cultivating outside.

At this time, the monk surnamed Qin and the other two monks were in front of a huge pool, discussing something with a serious expression.

Su Yi walked over to take a look, only to see that the pool was not filled with water, but with thunder and lightning.

Golden lightning flashed in the pool.

If you look closely, it sounds like thousands of birds are chirping.

Inside this pool, there is an unknown formation protection, which blocks the thunder and lightning from the outside world.

Otherwise, with so many thunderbolts, I'm afraid that even a monk with such great magical powers as a monk surnamed Qin would not dare to get so close.

What surprised Su Yi even more was that in the middle of the pool, there was a sword.

The sword was about three feet long, the hilt seemed to be made of some kind of bamboo, and the sword body was golden with golden lightning flashing on it.

Seeing Su Yi and Leng Qingyue coming, the monk surnamed Qin spoke: "Su Xiaoyou, I heard from Fairy Leng that it seems that Su Xiaoyou is a monk of the two spiritual roots of water and earth, not only that, but Su Xiaoyou seems to be practicing some kind of exercise, which can make the two spiritual roots of water and earth become thunder spiritual roots, is there really such a thing?" ”

Hearing this, Su Yi nodded.

Since Leng Qingyue told the monk surnamed Qin about this, Su Yi had nothing to hide.

The monk surnamed Qin was overjoyed when he heard this: "Su Xiaoyou, please come forward, Qin has an important matter, and he wants to instruct Su Xiaoyou." ”

Hearing this, Su Yi stepped forward.

I saw the monk surnamed Qin pointing to the pool in front of him and asked, "Does Su Xiaoyou know what this pool in front of him is?" ”

Su Yi shook his head: "Senior Qin, I have never seen such a pool full of thunder and lightning. ”

The monk surnamed Qin smiled slightly: "Don't say it's Su Xiaoyou, the old man has been cultivating for thousands of years, and he has only heard of this pool in legends." ”

"This pool is not small, it is rumored that there was a Thunder Spirit Root Great Divine Power Monk in Kunwu Immortal Mountain back then. This pool was built for a special reason. ”

"This pool is called the Sword Raising Pool, did Su Xiaoyou see the sword in the center of the pool? That is the famous Purple and Green Thunder Sword. ”

"This sword was a powerful human realm back then, and not only that, but this purple and green thunder sword was also a well-known existence in the spirit world."

Su Yi was puzzled and asked, "Since this sword is so powerful, why didn't that Lei Linggen's Great Divine Power Predecessor bring this sword to the Spirit Realm?" If, as Senior Qin said, this sword should be the natal magic weapon of that Lei Linggen senior, and the natal magic weapon is placed in the Nether, isn't that Lei Linggen senior worried? ”

When the monk surnamed Qin heard this, he smiled slightly: "This sword pond is also known as the sword pond burial. ”

"The reason why it is called the Burial Sword Pool is because the famous Lei Linggen monk unfortunately fell when he was fighting with people in the spirit world."

"This sword is also very badly damaged, according to the deathbed instructions of the Lei Linggen monk, this sword was brought back to the human world by the descendants of the Lei Linggen monk."

"The burial sword pond is the graveyard of this sword."

Speaking of this, the monk surnamed Qin changed his voice and continued: "However, the elders of Kunwu Immortal Mountain feel that this sword is not easy to refine, and it is extremely powerful, and they can't bear to let this sword be buried. ”

"So, all the elders of Kunwu Immortal Mountain joined forces to make this thunder pool, and slowly cultivated this purple and green thunder sword with the collected thunder attribute materials. Therefore, this burial sword pond is also known as the sword pond. ”

"After tens of thousands of years of cultivation, this sword has regained its former power."

"However, it is very troublesome to obtain this sword, and it is necessary to have a monk of Lei Linggen to hook up the purple and green thunder sword sleeping in the sword cultivation pool, so that there is a chance to take out this prestigious sword."

Su Yi was stunned when he heard this: "The monk of Lei Linggen that Senior Qin said, is it referring to Xia?" ”

"I'm afraid it's difficult to take on this important task if my skills are low."

Su Yi looked at the violent lightning in the sword cultivation pool, and estimated in his heart that he was afraid that a random lightning bolt could wipe out the Jindan stage cultivator.

The monk surnamed Qin patted Su Yi's shoulder affectionately and said, "Su Xiaoyou don't need to be afraid, although there is an extremely powerful magic circle in the sword cultivation pool, it is also set up to protect the Ziqing Thunder Sword. ”

"The original purpose was not to trap the Ziqing Thunder Sword, so as long as the Ziqing Thunder Sword revives on its own, the formation in the sword cultivation pool will dissipate on its own."

Speaking of this, the monk surnamed Qin paused for a moment, and then said: "Regarding the matter of this sword cultivation pool, I only knew so clearly after listening to the legend of my ancestors. ”

"It's not a secret, Qin's ancestor once had a great divine power monk, and this great divine power monk was one of the monks who was responsible for building this sword cultivation pond in the first place."

Hearing this, Su Yi nodded, and said: "It's not that I doubt the truth of what Senior Qin said, it's just that in the lower present, it's still water, earth, and two spiritual root monks, and there is still a slight gap between the divorced and the thunder spiritual root." ”

The monk surnamed Qin laughed when he heard this: "With Qin here, that gap will disappear without a trace." As long as Su Xiaoyou can take out this purple and green thunder sword, Qin will be rewarded. ”

At this time, the monk surnamed Wang on the side said: "Don't hurry up and thank Master Qin, with his protector of the Dharma, Su Xiaoyou's mutation of Lei Linggen is not a matter of course!" ”

"Let's Master Qin's generous move, the top-level magic weapon in your hand, isn't the Qinghong Sword given to you by Master Qin!"

"As long as you are willing to be loyal to the head of Qin, you won't soar in the future?"

Su Yi was not interested in being loyal to the monk surnamed Qin.

But with the help of a monk surnamed Qin, it would be much easier to turn into a thunder spirit root.

After all, the monk surnamed Qin is known as the first monk in Tiannan, and he is a great supernatural predecessor in the late Yuan Infant period.

Whether it is cultivation or experience, the monk surnamed Qin is one of the best existences in this world.

With his help, Su Yiyi's transformation into Lei Linggen is a sure thing.

Su Yi naturally wouldn't give up this opportunity, so he bowed down and said, "Thank you Senior Qin for it." ”

"The practice of the Mutant Thunder Spirit Root has been cultivated in the next place."

"The elixir of the mutant thunder spirit root, although I don't take much, I have also eaten a few pills, as for the auxiliary formation required by the mutant thunder spirit root, King Fu also asked Miss Leng to transfer it to Su on her behalf."

"Now there is only one place left where there is abundant thunder spiritual power, so that Su can successfully break through the bottleneck."

The monk surnamed Qin smiled when he heard this: "Qin still thought that the difficulties encountered by Su Xiaoyou were just a lack of pills, and he was just looking for a place with abundant thunder spiritual power to break through the bottleneck. ”

"Regarding the pills, Su Xiaoyou doesn't have to worry, Qin has collected a large number of rare pills in the Yuan Infant Period for so many years, and there are many elixirs of the mutant Lei Linggen, and Qin also has a lot here."

"As for the place where Su Xiaoyou said that the thunder spirit power is abundant, isn't that far away in front of you!"

"In this sword cultivation pool in front of me, there is abundant thunder spiritual power, but it just needs to be guided out."

After speaking, he took out a porcelain bottle from the storage bag and threw it to Su Yi.

"Su Xiaoyou, what is contained in this porcelain bottle is the elixir needed for the mutant thunder spirit root, since your exercises have been refined, then after taking a large amount of this kind of elixir, you can digest the medicinal power by running the exercises."

"During the period when Su Xiaoyou was digesting the medicinal power, Qin tried to guide the thunder spiritual power in the sword cultivation pool, and as for the matter of the formation, it was left to the two Taoist friends, Wang and Zhao."

"The two of them are infancy monks, and they both know more or less about formations."

"When everything is ready, and there is Qin Mou's protector, Su Xiaoyou can try to break through the bottleneck of the mutant thunder spirit root."

Su Yi nodded when he heard this, and he was not polite, and poured all the pills in the porcelain bottle into his mouth.

Then turn to the [Thunder Channeling Technique] and begin to digest the medicinal power of the pill.

The monk surnamed Qin circled around the sword cultivation pond several times, and then took out a large number of formation flags and began to arrange the formation.

As for Wang and Zhao, the two Yuan Infant Cultivators, they also began to study the auxiliary formation required by the mutant Thunder Spirit Root under Leng Qingyue's narration.