Looking at the one-foot-thick plank under his feet, there was a long, narrow hole artificially created. Yue Yu's forehead couldn't help but burst out with a layer of fine sweat.

By the time the wind blade had gathered to the last moment, he was almost completely unable to control it. In the end, I had no choice but to be completely irresponsible, and threw the wind blade that was not yet fully formed into the ground beside me. Then Yue Yu only saw the cyan crescent moon, and in an instant, he passed through three floors, and then pierced deep into the bluestone foundation of the library building.

Yue Yu couldn't see the specific depth, but just from the incomparably smooth deep marks on the third floor, he could get a glimpse of its sharpness. And the speed was even faster than when he used the Wind Blast, which also shocked him.

- Yue Yu couldn't judge whether other high-level martial artists would be able to take over this cyan wind blade when they were on guard. Anyway, if it were him, he couldn't catch it. Even with the help of assistive intelligence systems, the probability does not make much difference.

It's just that this secret method called the Wind Blade Technique is not without flaws at all. Judging from the process just now, whether it was the time it took to gather spiritual power or compress the wind blade, it seemed to be a little longer, far exceeding the needs of the Wind Spell and the Silk Winding Spell. And in this time, it was enough for the enemy to kill him a few times.

Of course, Yue Yu also noticed that when the wind spirits gathered around his body, the strong wind pressure had a repulsive effect on foreign bodies. However, at that level, it is estimated that it can only defend against a bow and crossbow of about 16 stones shot from a distance of 20 meters. If the enemy really wants to kill him, and is doing all their best to control the wind blade him, there is no room for resistance.

-- Therefore, it is conceivable that if he wants to use it in actual combat, he must improve it. At the very least, the time for gathering spiritual power and compressing the wind blade should be shortened by more than one-third before it can be used in battle.

In addition, there is also the consumption of spiritual power, whether it is using the Wind Spell or the Silk Winding Spell before, he only needs to slightly dissipate the true yuan spiritual power in his body and control those spiritual energy a little. However, when Fang barely managed to control the cyan wind blade, not only was the true qi in his body rapidly disappearing, but even his mind felt extremely tired after that moment.

However, this drawback also made Yue Yu see another way. Since this Wind Blade Technique requires the strong intervention and suppression of the True Qi in his body, it will not get out of control. So is it possible that the other two auxiliary secret methods will also be interfered with in the process?

For example, when using the Silk Twist, make wood or vines bend to entangle enemies. For example, when using the Wind Surge, the distribution of those wind spiritual powers is more reasonable, and the speed is further accelerated, etc.

Of course, this was just a conjecture in Yue Yu's mind, and it would take a lot of time and effort to make it happen. At this time, what Yue Yu cared more about was the secret techniques of the three castes of Mu Feng Lei.

The surprise that the Wind Blade Technique had given him before was far stronger than he had imagined beforehand. The practice route used to gather spiritual power actually coincides almost completely with the Wind Technique, but the required meridians are about one-tenth longer, and then the Wind Spiritual Power gathers more, and the order of spiritual power circulation in some places is slightly different. It can be said that it is completely relying on different postures, as well as a little difference in true qi control and aura guidance, to launch this kind of attack surname secret method that is completely different from the surname quality of the wind blast technique.

I just don't know, what is the situation of the secret method of the thunder system?

Glancing at the bookshelf in front of him again, which had already been swept down by the wind, Yue Yu shook his head slightly and set his eyes on the staircase on the fourth floor.

- He had already seen it just now, and there was no intermediate thunder-type martial art in this wood-based martial art. In this way, if he wanted to find the secret method of the thunder system, he had to go there to find it.

And looking at Yue Yu's figure going straight to the fourth floor, several old people in the building were once again speechless.

"Hehe, according to me, this one in our family may not be inferior to the two geniuses of the Lin family in Li Cheng and the Hong family in Danyun City in terms of talent! In less than two minutes, he has mastered two secret methods, and it is not an exaggeration to say that he is amazing!"

One of the old men finally came to his senses, and immediately shook his head with a smile. And the old man with gray hair and brown shirt finally escaped a smile from the corner of his lips.

"Amazing?" is a fitting word. Even I, the man who is about to step into the coffin with half a foot, can't help but want to live a few more years to see where he will go in the future-"

Three quarters of an hour later, the last rays of sunlight on the horizon faded into the sky. Yue Yu was almost gray and was kicked out of the library by several old people.

This wasn't because of the misfortune he had made when he used the Wind Blade Technique before, but in fact, because of the selfishness of those clan elders, he wished that the more movement he made, the better. Yue Yu himself estimated that as long as he was not discovered and the meridians would not be damaged, then it would not matter if he demolished the entire library building.

It's just that later, when Yue Yu finished reading the high-level martial arts secret book on the fourth floor, he didn't try any secret methods. Instead, I picked up those miscellaneous books on the third floor. So those elders didn't bother to deal with it, they just told Yue Yu a thousand times, and after saying that they couldn't rashly use other secret techniques, they forcibly threw him out of the building.

And when he was stupidly about to leave, he vaguely heard a sound of knocking and beating in the building, Yue Yu smiled slightly, and urged the dragon horneer without hesitation to rush home.

In fact, in that library building before, it can be regarded as a lot of gains. Aside from the 'Silk Winding Spell' and the 'Wind Blade Technique', which were both extremely practical secret methods, just those internal breath cultivation methods and martial arts that could only be systematically recorded with the auxiliary were enough to benefit Yue Yu for the rest of his life. Even if he could only absorb one or two percent of the essence in the future, it would be enough to push his martial arts to a height that he would never be able to achieve in the past.

In addition, his previous conjecture had also been basically confirmed after the Wind Blade Technique. The three powerful secret techniques contained in the two high-level thunder sword techniques found on the fourth floor, although they were temporarily unusable due to the fact that some of his branch meridians did not meet the requirements now. However, his practice route, as Yue Yu had expected before, partially overlapped with the secret methods of the other two caste spiritual powers, wood and wind. And the same as the latter two, they are all based on the two five elements of the five elements of the wood meridian of the foot syncope yin and liver meridian and the foot and yang gallbladder meridian, plus some branch meridians around it as the main trunk.

In other words, it means that he only needs to pay a little attention in the future, and use his vitality to strengthen and broaden these meridians. In the future, when you encounter these three caste secret methods, it will be very easy to get started. After all, there is the advantage of the natural tenacity of the meridians of the wood family, and it would be a pity not to take advantage of it.

In addition, combined with those mid-to-high-level wood-based internal mind methods, Yue Yu also confirmed his qualifications for the first time. I thought that if Xiao Yueyu was not practicing the Buyun True Method, but the cultivation method related to the wood system, then even if he was not a genius now, he would definitely not lose to those guys with ordinary qualifications in the clan.

And if there is any regret about this trip to the library, it is that I did not find a way to quickly improve my true qi cultivation in it. Whether it was those two secret methods or those martial arts, although they all helped him improve his strength, they were all external objects, and they did not help him stabilize and solidify his foundation.

However, Yue Yu was not frustrated by this, he didn't put his hope on those martial arts secret books from the beginning. What really pinned all his hopes on should be the miscellaneous studies in the building, including all the precious medicinal materials and pharmaceuticals, as well as a large number of secrets of the Dongsheng Continent.