After cultivating for two hours, Zuo Chen left the cultivation ground and walked directly to the Zongmen Library Pavilion, he decided to find a Gu Yuan Technique Mind Method, and if the contribution points were enough, he would exchange it for another Gu Yuan Technique to practice.

Since coming to this Yuanwu Heavenly Palace, he has never seen Long Xinyue again, and the other party has not even participated in the trial of new disciples, it is said that he has followed the so-called master in retreat. It's okay, the latter doesn't come out, Zuo Chen is also happy to be idle, just taking advantage of these days to cultivate seriously and improve his realm and strength first.

Coming to the front of the library pavilion and looking at the building in front of him, Zuo Chen's heart was shocked.

It is said that it is a library pavilion, in fact, it is not unprecedentedly described as a "hall", and what catches your eye is an extremely spectacular hall, the main hall has three floors, each layer is blessed by a powerful rune array, protecting the entire hall body firmly.

Stepping into the library pavilion, Zuo Chen saw rows of bookshelves placed in front of him. Moreover, there are very few books on the shelves, but most of them have some sky-blue crystal balls on them.

"Rune crystals?"

In this world, not only is the way of Yuanwu, but in addition to the way of Yuanwu, there are special runes that prevail together. With the prevalence of runes, all kinds of rune formations, rune rings, rune locks, etc., have appeared, and almost the use of rune means involves all aspects of life.

Even, at the peak of the Rune Dao Exhibition, he once dabbled in the level of life, and some people created real rune life, for example, Zuo Chen, who lived in the Endless War Domain when he was a child, heard that a half-human and half-rune life form came out of the Supreme Holy Land of the Endless War Domain, and the one-armed powerhouse named himself Blitz was terrifying.

Similar to this rune crystal, it is a peculiar embodiment of the way of runes. If Zuo Chen's memory is good, the rune crystal should be made of blue crystal, and at the same time a special rune means are engraved, so as to form a rune crystal that can store words and pictures. But some big forces, all use this means to store some cultivation methods, Gu Yuan Technique, etc., this rune crystal, if it can be damaged, can be kept for almost a thousand years without extinguishing, compared to the ancient book and paper storage, it is undoubtedly much more convenient and much safer.

"Elder, I'm here to exchange for an ancient yuan technique, do you have any requirements for this library pavilion?"

Zuo Chen came to the front and saw an old man sitting behind a table, and heard that there were elders sitting in the Zongmen Library Pavilion and guarding it, so it should be the one in front of him.

"Ordinary disciples can only stay on the first floor, inner disciples can enter the second layer, and true disciples can enter the third layer. Take out your ID card and I'll take a look. The old man glanced at Zuo Chen, and then spoke.

Zuo Chen nodded, and handed his identity card to the other party.

"Hmm, someone else's entourage?" The old man's gaze suddenly appeared a little different, Zuo Chen's entourage identity was marked on the identity card, and it was seen at a glance.

However, although it is said to be an entourage, it is Long Xinyue's entourage, as far as Long Xinyue's true disciple is concerned, even if Zuo Chen is the latter's entourage, he is no different from an ordinary disciple, and he is also qualified to stay here.

"Go ahead, remember to stay only on the first floor. The old man returned the identity card to Zuo Chen.

Putting away the identity card, Zuo Chen walked along the surroundings of the first layer, passing along the way, and saw the marks on those bookshelves, such as some cultivation methods, Gu Yuan techniques, and some other classics, etc., all of which were clearly marked, and it was very easy to find.

"Canglan Mental Method: Human-level high-grade mental method, exchange price of 5,000 contribution points. ”

"Satin Body Decision: The method of refining the flesh and exercising qi and blood, the exchange price is 6,000 contribution points. ”

"Aoki Binding Decision: Human-level low-grade Gu Yuan Technique, exchange price of 3,000 contribution points. ”

"Yu Lei Finger: Human-level high-grade Gu Yuan Technique, exchange price of 5,000 contribution points. ”

......。

Looking at the past, Zuo Chenxian is on the first floor of this library pavilion, whether it is some classics, or Gu Yuan techniques, including cultivating the heart method, but the grade is not high, most of them are human-level heart methods and Gu Yuan techniques.

Of course, there are different levels of high and low grades in the heart method and ancient yuan technique, namely: human level, earth level, heaven level and god level, each level has three grades, and the power is naturally very different. Similar to the Mind Method Gathering Yuan Decision that Zuo Chen cultivated, it was just the lowest human-level inferior Mind Method.

In fact, he had cultivated in the Star Transformation Sect before, and within the small Star Transformation Sect, the most powerful cultivation method was only a human-level mid-grade.

In the first layer, the most powerful heart method and Gu Yuan technique should be the top grade of the human level.

Carefully browsing the past, Zuo Chenxian's storage capacity in the first layer is too large, if he looks at the past one by one, he doesn't know how long it will take, and in the end, an hour has passed, and he has directly selected a mental method: Lei Yuan Jing.

This Lei Yuan Sutra is the ancient Yuan Force Mental Method of the Thunder Attribute.

There are seven kinds of ancient yuan power attributes in the world, which are the most common five element attributes such as gold, wood, water, fire, and earth, and then the two special attributes such as wind and thunder. Generally speaking, each attribute of the ancient element force has its own characteristics and differences. Just like the thunder attribute Gu Yuan Force, it is in the name of domineering, it can be said that under the same power, the thunder attribute Gu Yuan Force is recognized as the strongest, at least in battle.

The strongest attribute naturally causes countless people to rush to it, but after countless years, everyone has finally realized that although the ancient yuan power of the thunder attribute is powerful and terrifying, it is almost impossible to cultivate at all, and only a few people must have a physique related to the power of thunder and lightning such as the body of heavenly thunder, the body of ten thousand thunder, and the purple electric divine body, and the physique cultivated by the day after tomorrow is not good, so that they are qualified to cultivate the mental method of the thunder attribute and control the ancient yuan power of the thunder attribute.

However, Zuo Chen didn't care.

Because countless years ago, he was born with a Nine Ima body and possessed a Holy War Emperor Body, and his Holy War Emperor Body was one of the physiques belonging to the Thunder System. What Zuo Chen cultivated when he was a child was the thunder attribute mental method. Moreover, back then, as a disciple of the Emperor Zuo clan, his status was much higher than now, and what he cultivated was a strong and terrifying heaven-level mental method.

It's a pity that after the changes of the year, not only Zuo Chen's talent was abolished, but even the mental method and Gu Yuan art of the Zuo clan that he cultivated were erased.

The Holy War Emperor Body is no longer there, which means that Zuo Chen now has no thunder attribute physique, and he can't cultivate the thunder system again, however, how can Zuo Chen's heart really be willing?

If you want to cultivate, you have to cultivate the strongest, and if you don't try, how do you know that you can't cultivate now?

His Holy War Emperor Body and talent have been plundered away by that Zuo Qianqiu, Zuo Chen can accept this fact, but he definitely can't accept that when he stands in front of Zuo Qianqiu again, the other party has the strongest Thunder Gu Yuan Force, and the strength he has is worse than that person, absolutely not.

Then, Zuo Chen chose an ancient yuan technique: the Thunder Finger.

This thunder finger is also used to fight and cultivate with the power of thunder and lightning, and if it is combined with the Lei Yuan Sutra, the power will increase a lot, which is extremely suitable.

What made Zuo Chen smile bitterly was that the Lei Yuan Jing needed 5,000 contribution points, and the Thunder Finger also needed 5,000 contribution points.

I originally thought that I had obtained tens of thousands of contribution points, and the number was already a lot, at least enough to support myself in exchanging a lot of good things, but I didn't expect it to run out in this way?

That is, if you change to other disciples, I am afraid that you will not even be able to exchange any of them.

It seems that there are a lot of tasks to be done in the future, and I will try to earn contribution points. If the exchange of mental methods and ancient yuan techniques consumes contribution points like this, if they are exchanged for other pills, treasures, etc., I am afraid that it will not be far behind. I still have to work hard to exchange for the elixir that can relieve the poison of my sister-in-law's legs.

At the door, Zuo Chen walked up to the previous elder who was guarding the library pavilion, signaled the two rune crystals in his hand, and then took out the identity card and asked the other party to brush away the contribution points.

"Lei Yuanjing?"

Seeing that Zuo Chen chose the Lei Yuan Sutra, the old man glanced at Zuo Chen: "You are just an ordinary physique, choosing this Lei Yuan Sutra is a waste of contribution points, are you sure you want to choose this mental method?"

"Yes, Senpai. Zuo Chen smiled faintly: "I haven't cultivated, how do I know that I really can't succeed in cultivating?"

The old man frowned: "You have never possessed a thunder physique, and you have cultivated the example of thunder attribute Gu Yuan Force, there is no one in a hundred thousand, and you, a disciple, are also arrogant." ”

However, although it was a warning to Zuo Chen, the choice was ultimately on Zuo Chen, and after brushing away 10,000 contribution points, the old man said: "Remember, at the latest one month, the rune crystal must be returned without any damage." ”

"Yes, senpai. Zuo Chen spoke, and then walked out of the library under the latter's shake of his head.

returned to the residence, walked in, saw that Ye Qiandi was also inside, nodded at the latter, and Zuo Chen directly began to browse and comprehend the Lei Yuan Sutra.

About half an hour later, Zuo Chen officially began to cultivate, and according to the Gu Yuan Force Operation Method described by the Lei Yuan Sutra, he began to mobilize his own Gu Yuan Power and began to operate along the specific meridian routes in his body.

Time passed minute by minute, and gradually, an extremely rich space-time energy was condensed around Zuo Chen, and at the same time, a thunder-attribute aura escaped from his body.

"Huh?"

Ye Qiandi, who was sitting opposite, couldn't help but widen his eyes when he saw this scene, Ye Qiandi himself was a supreme genius, and it was impossible for anyone's cultivation to attract his attention, but at this moment, he was completely attracted by Zuo Chen in front of him, just because of the obvious thunder attribute aura emanating from Zuo Chen's body.

At the same moment, Zuo Chen, who was cultivating, was extremely excited in his heart.