Under the difficult explanation of the dead wood, it took Mu Yu more than ten days to initially understand the general structure of the Void Array, and this process was very difficult, because the specific structure of the Void Array had not been completely figured out in the dead wood, and only a rough idea was figured out, so Mu Yu only learned the "probably" of "probably".

However, Mu Yu finally got what he wanted, that is, how to create a teleportation jade pendant similar to the one he had gone to the Second Heaven, he improved his formation mark, and the responsibility of being an experiment fell on Xiao Shuai again.

"You're not going to squeeze my ass this time, are you?"

Xiao Shuai and Xiao Hei and Xiao Bai were circling around, and this time it was the turn of Big Black and Big White to maintain operation in Kaixuding.

"No, no, don't worry. Mu Yu said with an oath.

Xiao Shuai was full of disbelief.

The teleportation array flashed, and then Xiao Shuai let out another scream, and he angrily bit on Mu Yu's fingers, leaving two thin holes.

"If I make a mistake, I'll improve it. Mu Yu shook his fingers in pain and reassured.

"I'm not a test specimen anymore!" shouted Xiao Shuai.

"If you succeed in this formation, you will be named, okay?" Mu Yu said.

Xiao Shuai thought for a while and said, "Then I'm going to call this formation the Chuan Shuai Formation!"

Mu Yu felt a little headache: "Can't you change to a domineering one?"

"Then 'pass on the heroic and invincible, and look at death as if you were home'!"

"Okay! ”

After being bitten seven or eight times in a row by Xiao Shuai, Xiao Shuai finally stopped touching his ass and screaming in pain, and Mu Yu's Transmission Array also began to take shape, and could be used to teleport anyone with the imprint of the formation without hindrance.

"Your formation mark requires spiritual power to function, what about those mortals?" asked Xiao Shuai.

"I will use the same teleportation method as the Void Array, and make the formation mark into a jade pendant, and just smash the jade pendant. ”

Mu Yu thought for a while, this kind of thing is very common, he can ask Yundan Dao people to help, he doesn't need to make the jade pendant beautiful, just a simple small jade, and then engrave his formation mark for those who really need to be saved.

He had memorized all of Daddy Deadwood's teachings and understood how the Void Array could be easily maintained and used, and then left the Scripture Pavilion, inspected the teleportation array in the cave, found some flaws, and simply repaired it.

In the past ten days, Mu Yu has discovered the power of the Danding faction's formation, originally thought that after the Danding faction was almost razed to the ground this time, it may be difficult to recover as before, but when Mu Yu understood the Void Array, he found that the Void Array was the core of all the formations of the Danding faction!

Mu Yu found the Yundan Dao people, the Yun Dan Dao people seemed to have stopped rebuilding the Danding Sect in the past few days, but had been waiting for Mu Yu, and the moment he saw Mu Yu, he immediately greeted him.

"Mu Yu, have you learned the formation technique to restore the Danding Sect Mountain Range?" asked Yun Dan Dao with hope.

"Uncle Shi, I do know how to restore the mountain range of the Danding faction, all the formations of the Danding faction are dominated by the ancient teleportation array, and it was mentioned in the guidance left by Daddy Deadwood. ”

"What? Senior Brother Deadwood has already discovered this formation technique?" Yun Dan Dao people were overjoyed.

Helian Kong snorted coldly beside him: "The more I think of Deadwood Changqing, the more disappointed I am in you, so a genius character has been caused by you like this, bastard! Fortunately, Deadwood Changqing left an apprentice with outstanding talent in that offspring, otherwise the Danding faction would be destroyed in the hands of your generation!"

"Yes, yes, Master Zu has taught me a lesson. Yundan Dao people's faces were full of guilt.

"Actually, don't blame Daddy Deadwood for not telling you, because you don't have a certain level of formation attainment, it's useless to tell you, you can't use it. Anyway, I'll help you restore the terrain of the Danding faction. Mu Yu said.

"Then I'm bothering you. Yundan Daoist said gratefully.

The terrain of the Danding Sect is protected by the formation technique, and under each major mountain peak there will be a Xuan Dan Returning Spirit Array that has been handed down from ancient times, and it is only because of the age that this formation technique has failed, and what Mu Yu needs to do is to repair these Xuan Dan Returning Spirit Arrays deep underground.

"The formation base of the Xuan Dan Returning Spirit Array is a fifth-order Xuan Dan, you should be able to refine this elixir, right?" Mu Yu asked.

Danding used to be a combination of Dan and Array, so their unique formation technique was to use Dan medicine as the base of the formation. Xuandan is a kind of elixir that can gather the aura of heaven and earth, forming the aura into a cyclone, gathering together to provide aura as support for the formation.

Yun Dan Dao was stunned for a moment, and then said, "Fifth Order Pill Xuan Dan, we always thought that the pill was useless, so no one went to refine it. ”

The only function of the Xuan Dan is to form the aura into a cyclone, but because the Danding faction has abandoned the formation technique, the Xuan Dan has become a chicken rib. It is actually not very useful to form the aura between heaven and earth, because the aura formation cyclone will become irritable and difficult to absorb and refine, and no one will do such a thankless task.

"If you haven't refined, then hurry up and refine, you didn't know how to use it before, don't you know how to use it now?" Helian Kong scolded.

"Yes, yes. Yundan Daoist hurriedly answered.

Fortunately, the Xuan Dan was a fifth-order elixir, and refining the fifth-order elixir was not a difficult task, and he soon issued an order for all the fifth-order alchemists of the Danding Sect to put down their work and refine as many fifth-order Xuandans as possible.

Mu Yu originally wanted to use other formation bases instead, but because the Xuandan Returning Spirit Array was handed down from ancient times, and what was recorded in the formation was the characteristics of the terrain of the ancient Danding faction, so it could not be modified.

During this period, Mu Yu asked the Yundan Dao people to help get as much jade as possible, and he needed to make enough Chuan Shuai Array to save those he wanted to save.

The entire Danding faction began to act, and Mu Yu returned to the Kaixu Ding and continued to cultivate. He is now cultivating to the only one who can merge with the Nine Heavens, and he must break through to the Tribulation Period as soon as possible!

Mu Yu has not been able to fully understand the secret of the Kaixu Ding, because the owner of the Kaixu Ding is Daddy Deadwood, not him, he only temporarily got the help of Da Hei and Da Bai, that's all, but Da Hei and Da Bai still helped him create a suitable cultivation environment.

Mu Yu had already experienced the perception of the Tribulation Period when he was invaded by the killing force.

In the process of cultivation, every time a cultivator is promoted to a realm, he needs to break through the barriers of his body, temper the meridians of his body, and let his body be able to withstand the spiritual power of a higher realm, which is the first step.

The Tribulation Period is special, in addition to improving one's physical strength, it is necessary to survive one's own mental tribulation, which is the second step.

The higher one's cultivation, the stronger the strength to bear, and if one's heart is not firm enough, one will not be able to withstand strong power, and it will easily be swallowed by one's own strength. Therefore, if you want to control the power, you must first get through the mental tribulation.

The first step was never difficult for Mu Yu, because he was a cultivation genius, and his unique single-attribute physique made him no barrier to cultivation, as long as the time came, he would be able to break through quickly.

Although this single-attribute physique is very powerful during cultivation, it can withstand any power that exceeds the strength of the body, just like the killing power, this kind of person can't let them withstand it in any cultivator's body, and only Mu Yu and the five of them can do it.

However, people with a single-attribute physique can't survive, so far only the four Mu Yu brothers and Qiao Xue have them, they are the lucky ones, but they also bear their own responsibilities.

However, when it came to the second step, even if Mu Yu could rely on the strength of his body to use the power of the Tribulation Period, he would not be considered a true cultivator of the Tribulation Period if he did not cross the Heart Tribulation.

Crossing the tribulation means overcoming the mental tribulation and achieving a higher level of self. Many people will not be able to cross some hurdles in their hearts and control more powerful power, which will lead to losing themselves.

Mu Yu only now understands that they are also killing powers, and why his control over killing power is not as good as those Yumeng priests, because his heart rejects this power, so he can't fully exert it.

However, now that Mu Yu has sealed his killing power and cultivated to return to the Nine Heavens of the Fusion, he must find his own strength, survive the heart tribulation, and truly become a strong man in the tribulation period!

"What's your heart?" asked Xiao Shuai curiously.

Mu Yu thought for a while, and said seriously: "Xiaoshuai, I am now entangled by a heart tribulation, which causes me to be unable to break through to the tribulation period, only you can help me complete it." ”

"Really? Your heart has something to do with me? Tell me about it, do you think I'm too handsome to affect your performance, or am I too smart to make you ashamed of yourself? If it's because of this, then I can't help it. Xiao Shuai puffed up his chest, sat on Da Hei's body and spread his hands regretfully.

Mu Yu resisted the urge to beat this guy, and then said: "It's the handsome array, can we change the name, this name makes me feel like a demon, I can't do it, I can't die." ”

"No problem, then change the name to the Chuan Heroic and Invincible Xiao Shuai Formation!" Xiao Shuai said without hesitation.

Mu Yu sighed, now it seems that it is useless to change the name, if he advocates changing the name without authorization, Xiaoshuai will bite him every day and fight with him.

Everyone's heart is different, because everyone has experienced different things, so the things that plague their hearts are also different. If you want to survive the tribulation, you need to truly face yourself and control the power of the tribulation period with your true self. Whether the true self is selfish or cruel and vicious, or kind and tenacious, only by knowing what kind of person you are can you better control power.

After Mu Yu thought about it for three days in Kaixu Ding, he knew what his heart tribulation was, and he also understood what to do with his own heart calamity.

After slaughtering 100,000 people in Dongsha City, what kind of person he wanted to be has always bothered him. In the past, he had just come out of Liushui Village, and at that time he promised the village chief's grandfather that he would be a good immortal master to fight against Youmeng and prove his identity as a "human", but now he directly slaughtered 100,000 people, violating his original promise, he didn't dare to face the village chief, this was his heart.

He is the apprentice of Sword Shadow Dust, Sword Shadow Dusty Wind wants to save the entire Triple Heavens, he doesn't want to follow the path of his master, so he can't pass his own responsibility, which is also his heart calamity.

When he was in Mufu, as the elder brother of Mu Hao and Mu Xin, he was always regarded as a "great hero of the human race" by those two children, Mu Xin was still young and ignorant, but Mu Hao was different. Now he doesn't want to see Mu Hao because he thinks that what he does will make Mu Hao despise him, and he is afraid that he is not a good brother, which is even more of a calamity for him.

The last heart calamity is tranquility.