Back at his residence, Zao Wou-Ki couldn't help but feel that the world had changed so much.

Originally, he planned to infiltrate the barbarian camp to see if he could get the seeds of Tian Kunshu.

But he never expected that so many unexpected things would happen in the middle.

When he got back to his room, he calmed himself down quickly and stopped thinking about what had happened to him these days.

For him, the most important thing for him now was to absorb and refine all the wood attribute power inside Tian Kun Tree's seed, and let it enter the cave heaven under the Yuan Sea.

At this time, in the Zhao family's compound, Zhao Tianming summoned a group of cronies of the Zhao family, and he asked those cronies to be stationed near the barracks, and strictly interrogated everyone who approached the barracks to prevent the enemy from entering the barracks to spy on intelligence.

Zhao Tianming also knew in his heart that if a master of the Feather Demon Sect entered the barracks, no matter how many soldiers he placed near the barracks, it would probably be useless.

Therefore, he could only pray that the capital would send out masters as soon as possible, and let those masters be responsible for protecting the eldest princess.

When the monarch of the ancient kingdom heard that Wan Qingqing was attacking the barbarians, he was actually attacked by the Feather Demon Sect, and the other party also severely injured Wan Yiwen, and he exploded his lungs on the spot.

"These remnants of the Feather Demon Cult!"

The monarch immediately sent five masters of the Jingzhong Battalion to let them enter Zhennan County as quickly as possible, and were responsible for protecting the monarch's safety.

At the same time, he couldn't help but sigh that the power of the Feather Demon Sect could still be so arrogant.

"If this Feather Demon Sect is not eliminated for a day, the Ancient Kingdom will not be at peace for a day!"

Now the Wangu Kingdom has become a vassal state of the Tianyin Kingdom, and he is a surrounding country, and has also become a vassal state of the Heavenly Britain, they only need to pay a certain amount of money to the Tianyin Kingdom every year, and they can enjoy peace forever.

In addition, the Celestial Sound Kingdom is responsible for protecting the security of the vassal states.

A hundred years ago, the Kingdom of Celestial Sound asked all the vassal states to work together to deal with the Feather Demon Cult, and the Kingdom of Celestial Sound warned the vassal states that if anyone did not obey its orders, it would carry out a crusade against the vassal states.

Therefore, back then, all the major vassal states under the Tianyin Kingdom participated in the operation to exterminate the Feather Demon Sect.

Even if some vassal states were unwilling, they did not dare to disobey the Tianyin Kingdom, for fear that they would be attacked by the Tianyin Kingdom.

Moreover, the Kingdom of Tenyin also asked the vassal states to send some of their princes to it to learn advanced exercises.

The vassal states guessed that the purpose of the Tianyin Kingdom was to take those princes as hostages and stay in the Tianyin Kingdom.

They were dissatisfied, but they didn't dare to express their anger.

Moreover, only the Tianyin Kingdom has cultivation techniques and various rare pills that can make a martial artist cultivate to the extreme, as well as rare refining materials, that they do not have.

The Tianyin Kingdom occupies one-third of the territory of the Xuanhuang Continent, and has many rare minerals, as well as various scarce refining materials.

Some high-grade pills, as well as some high-grade refining materials, are only available in the Tianyin Kingdom.

The Tianyin Kingdom has cultivated a large number of strong people with the help of those rare materials, and those strong people have completely crushed the major vassal states, so the major vassal states do not dare to go against the wishes of the Tianyin Kingdom, so they can only do their things according to the will of the Tianyin Kingdom.

With those rare elixirs and rare minerals that other vassal states did not have, the Tianyin Kingdom has achieved control over the major vassal states, and there is no need for it to occupy and slaughter the people of the major vassal states.

Therefore, for a while, the world was also peaceful.

And within the territory of the Tianyin Kingdom and the major vassal states, the only enemy is the hidden Feather Demon Sect.

On the other hand, the Sky Devourer flew outside, saying it was going to look for something to eat.

Zao Wou-Ki told him that he could provide it with a lot of free food and that it didn't need to go outside to find something to eat.

But the Sky Devouring Sparrow told it that it was not an ordinary cow or sheep when it needed it, and the food it needed was a genuine demon beast.

Dozens of kilometers outside Zhennan County, there were a large number of demon beasts there.

Zhao Wuji knew that dozens of kilometers away from Zhennan County was the territory of the barbarian tribes, and there were naturally a large number of demon beasts there.

Barbarians and monsters are in the wild, but barbarians will not easily enter the places where monsters gather, and they only choose some safer places to live.

It is said that in some deep mountains and old forests in Zhennan County, there are a large number of demon beasts with very terrifying strength, and those demon beasts dare not be underestimated even by the powerhouses of the Ning Dan realm.

Since the Sky Devouring Sparrow said that it was going to eat the demon beast, Zao Wou-Ki didn't stop it.

So, at night, it would fly dozens of kilometers at top speed, running outside to the deep mountains and old forests to eat demon beasts, which also saved Zao Wou-Ki a lot of trouble.

Moreover, for the sake of safety, Zao Wou-Ki told it not to disturb its cultivation while it was cultivating.

Otherwise, his life would be in danger.

The Sky Devourer agreed, and it swore that it would never disturb his retreat.

After the Heaven Devouring Sparrow left, Zhao Wouji took out the Tian Kun Tree Fruit from the storage ring, and then ran the exercise to absorb the wood attribute power in the fruit into his Yuan Hai Cave Heaven.

The fruit was the size of his fist, and its whole body was blue, and when Zao Wouji's divine sense entered it, he sensed that it was filled with wood attribute power.

Zao Wou-Ki followed the method that Yi Zhen had said before, and first prepared a large water tank in front of him.

Although there is a strong wood attribute power inside the fruit, there is also a lot of poison in the fruit.

He prepared the water tank so that he could wait for the poison to be excreted from his body.

If it was in the Four Heavens, the warriors there could replace Tian Kunshu with a better elixir, instead of using Tian Kunshu, which contained highly poisonous.

But in the Land of the Eight Desolations, it was unlikely that Zao Wou-Ki would be able to find an elixir with wood attribute power and not containing highly poisonous.

Once everything was ready, Zao Wou-Ki swallowed the fruit into his stomach.

He ran the exercises and began to refine the fruit in his stomach.

After a while, he sensed that bursts of powerful wood attribute power were being absorbed and refined by him into his Yuan Sea.

And some of the poison contained inside that fruit was condensed into a mass by him with Yuan Force, and it would not harm his internal organs and meridians for the time being.

As time passed, the poison gathered more and more, and Zao Wou-Ki ran the exercise and spit it into the water tank in front of him.

When the poison enters the water in the tank, it immediately turns the tank into a dark black ink tank.

The water in the ink tank was extremely poisonous and emitted a strong foul smell.

After Zao Wou-Ki digested the fruit of one Tian Kun tree, he continued to digest the second one.

It took him one night to refine all the more than two hundred fruits.

The wood attribute power inside the more than two hundred fruits all entered the cave heaven under his Yuan Sea, and when his divine sense entered the cave heaven, he could see a cloud of green light constantly flickering in the cave sky.

That green light was the pure wood attribute power that he had spent a night last night and painstakingly refining those Tian Kun tree fruits.

Zao Wou-Ki unleashed the power of the cave in the room, and then he used the power of the wood attribute again.

After comparison, he found that his current control over the power of the wood attribute was at least twice as strong as when he had not absorbed, refined, and devoured the fruit of the Tian Kun tree.

"It's a good feeling!"

Zao Wou-Ki breathed a sigh of relief, although yesterday's day's hard work did not improve his cultivation, he had already completed his first small goal.

"Next, I'm going to gather the other eight attribute powers!"

If in the past, Zao Wou-Ki didn't know how he should absorb, refine, and devour the nine different attribute powers between heaven and earth, he was still a little confused and questioning at that time.

But after a day of hard work last night, he found that it was not as difficult as he thought, and he was full of confidence in himself.

"Wuji, don't be too happy, you're just letting the cave heaven have the power of the wood attribute now, you're just starting the first step now, you naturally feel very easy! In fact, it's not difficult to absorb and refine the power of nine different attributes, what is really difficult to do is how to make them fuse perfectly together in your cave heaven! This is the most difficult part! Cultivating this set of secret methods, at the beginning, you will feel that it is easy, but the more you get to the end, the more careful you have to be! You must know that when the time comes, there will be nine different attribute powers in the cave heaven under your Yuan Sea! When the time comes, I'm afraid it will be difficult for you to master!"

Listening to Yi Zhen's words, Zao Wou-Ki nodded hurriedly.

He knew that he was only absorbing and refining one of the wood attribute powers, and in the process, he still clearly felt that the wood attribute power was full of rage.

He could only sigh, fortunately, he was only absorbing and refining the first wood attribute power now, if he already had fire attribute power in his Yuanhai Cave Heaven, maybe these two different attribute powers would want to 'annihilate' each other at that time.

If this really happened, then his previous efforts would be completely in vain, and he naturally didn't want to see such a result.

"I told you before, after you have absorbed and refined an attribute power, you must thoroughly master it and let it settle down in the cave heaven first!

Yi Zhen said seriously.

"Master, I see!"

Zhao Wuji hurriedly replied, it was the first time he had absorbed and refined the power of the wood attribute.

As a result, he was very nervous at first.

When he succeeded, he felt that the process would not be difficult.

And now Yi Zhen was warning him, so that he should not think that this time he was successful, and mistakenly think that it was a very simple matter to introduce the power of nine different attributes into the Cave Heaven.

Once he really thinks that this is a very simple thing, when the time comes, once he makes the mistake of taking it lightly, there will be unexpected results.

Yi Zhen knew that the secret method he had taught Zao Wou-Ki to open up the Cave Heaven was full of dangers, so he repeatedly warned Zao Wou-Ki that he must be very careful.

Zao Wou-Ki completely believed Yi Zhen's words, and he knew that his master had repeatedly warned him that he must not make any mistakes when opening up the Cave Heaven.

If something goes wrong, the consequences can range from serious injury to death.