The attic was quiet, except for a wrinkled, white-haired man about eighty years old on the side of the door, who was dozing off on a chair beside the door.

Although this person looked old, like an ordinary old man, and he didn't see the slightest sign of cultivating martial arts, Mu Han didn't despise it at all.

The Mu family hides the dragon and crouching tiger, and some powerful characters are fully capable of covering up their own breath. This old man can be sent by the Mu family to guard the Zangfeng Pavilion, and he is definitely not an idle person.

"Seniors. ”

Mu Han shouted softly respectfully.

"Huh?"

The old man shook his head and opened his sleepy eyes in a daze.

Mu Han hurriedly handed over the jade plaque he had just received from Mu Tiexin: "Senior, my name is Mu Han, and I am a second-level disciple of the Feng Academy, and I am here to select the lower grade martial arts exercises. ”

"Hmm!"

The old man took the jade card, and without looking at it, he waved his hand at Mu Han, and then the two pairs of eyelids drooped, and his head moved like a fish.

Mu Han bowed again, and then turned away.

All the collections on the first floor of the Zangfeng Pavilion are low-grade martial arts exercises, and there are a total of eight rows of wooden frames in a space of more than ten meters. Jade pieces of various colors are neatly arranged on the shelves.

These jade pieces are all low-grade Dao weapons.

A piece of jade is a kind of martial arts technique, they are imprinted inside the Dao weapon by the Mu family master, as long as the Dao weapon is triggered, the content will be revealed.

On the surface of each jade piece, the name of the exercise is written.

Among them, some of the exercises were extremely widespread in the Taixuan Heavenly Domain, some were exchanged with other family sects, and some were original to the Mu family.

Starting from the first row of Mu's family, Mu Han's eyes quickly scanned.

Xuanmu Fist, Flame Palm, Qingfeng Eighteen Swords, Tiger Explosive Strength, Rock Skill......

For so many years in Xuanfeng Academy, Mu Han had heard of these low-grade martial arts techniques, and he had also seen those Mu family disciples practice. There are several of them that are very good in the lower grade martial arts exercises. For example, the "Flame Palm", cultivated to the extreme, the true qi is like a flame, and a single palm can almost burn a person to ashes;

However, Mu Han was not at all interested in these exercises.

After reading the lower-grade martial arts exercises on the first row of wooden shelves, Mu Han did not hesitate to turn to the second row, then the third row, and then the fourth row......

When he came to the middle of the sixth row, Mu Han finally stopped, staring at the palm-sized purple jade piece of the wooden frame with bright eyes:

Lei Ji Yin Gang!

"That's it!"

Mu Han smiled and couldn't wait to take off the jade piece that was imprinted with this exercise.

The purpose of his coming to the Zangfeng Pavilion was for it!

This kind of martial arts technique was created by a martial arts realm powerhouse of the Mu family hundreds of years ago, and in terms of power alone, "Lei Ji Yin Gang" is one of the best among all the middle-grade martial arts exercises of the Mu family.

It's just that this kind of exercise has very high requirements for cultivators, and the speed at which they absorb the aura of heaven and earth and transform it into their own true qi must be very fast.

The martial realm is ninefold, and the speed at which heaven and earth aura is transformed into true qi can also be divided into nine levels. However, cultivating the "Thunder Pole Yin Gang" had to have a sixth-level speed. In other words, at the very least, you have to have the speed at which a Hundred Aperture Realm cultivators can transform their true qi in order to have the foundation for cultivating the "Thunder Pole Yin Gang".

However, people with the strength of the Hundred Tricks Realm can basically go to the Zangfeng Pavilion to choose a high-grade exercise, who would go to cultivate the "Lei Ji Yin Gang" that only has the power of a middle-grade martial arts technique?

What's more, the progress of the cultivation of this kind of exercise is still very slow.

There used to be two masters of the Mu family in the Hundred Trick Realm, and they spent several years trying this new technique, but they found that when they cultivated, the speed of their strength growth was not even as fast as that of those who cultivated the lower grade martial arts exercises.

As a result, "Lei Ji Yin Gang" has become the chicken rib of the chicken rib.

The grade of this martial arts technique has also been lowered from the middle grade to the lower grade, and no one wastes time cultivating it anymore, and it has basically been ignored for hundreds of years.

Mu Han also listened to some Mu family children chatting a few months ago, and only then did he learn about the existence of "Lei Ji Yin Gang".

Recently, he was thinking about changing the technique to cover for the "Purple Jade Smoke Technique", and when Mu Han searched for his memory, he immediately chose it. Because of the existence of the "Purple Jade Smoke Technique", Mu Han's speed of transforming the aura of heaven and earth into true qi was very fast, and he could completely try to cultivate the "Thunder Pole Yin Gang".

Moreover, Mu Han knew that with his own identity, it was quite difficult to obtain the middle-grade martial arts exercises openly, and it was even more impossible to practice secretly. Whether it is the Mu family or other sects, it is taboo to learn martial arts above the middle grade without being taught or privately.

If he can successfully cultivate the "Lei Ji Yin Gang", even if he encounters those children in the Ruifeng Academy who have been cultivated by the Mu family, Mu Han will have the means to resist.

Of course, more importantly, this kind of exercise, which no one cultivates, is very suitable for covering up for Mu Han.

"Whew!"

With a light breath, Mu Han quickly calmed down, and then with a movement of his mind, a trace of mana overflowed his heart like a stream, and then through the thumb and index finger of his right hand, it seeped into the jade piece.

"Boom!"

The Dao pattern fluctuated, and this low-grade Dao weapon burst out with a brilliant purple glow.

Mu Han hurriedly concentrated, looking at the jade piece without blinking, and after an instant, he saw rows of black characters revealed on the surface of the jade piece, neatly and neatly.

After a few minutes, the jade slice purple mangs converged.

Mu Han's eyes closed slightly, and the skill of "Lei Ji Yin Gang" flew through his brain. If the jade piece is triggered once, the trick will be revealed three times in succession.

After three times, the trick has been completely imprinted in Mu Han's heart, and it is vivid.

After reciting it silently several times very smoothly from beginning to end, Mu Han put the jade piece back on the wooden frame and turned away. The white-haired old man on the side of the attic door was still sleepy, and there was even a slight snoring sound in his nose. Mu Han didn't disturb him, just bowed slightly and left quietly.

After a long time, the white-haired old man yawned and stretched, and came to his senses.

The cloudy old eyes swept over the wooden frame, and the old man's face, which looked like the bark of an old tree that had been dried up, showed a slight surprise: "It's still a little guy with mana...... The selection is actually the 'Lei Ji Yin Gang', which is regarded as a chicken rib exercise, interesting, interesting, ......"

By the end, the old man was already smiling and full of interest.

After Mu Han left the Zangfeng Pavilion, he did not immediately try to cultivate, but stayed quietly in his slightly dilapidated home, figuring out the formula of the "Lei Ji Yin Gang" set of exercises word by word.

At this time, the news of the disappearance of Mu Xingkong, Mu Xingfeng, Mu Tianyu, and Mu Tianlan finally attracted the attention of the Mu family, and then caused an uproar in the Mu family......

......

......;