"Needless to say, the situation here, with the current ability of human beings, it will take at least a thousand years to enter here."

"Who's to say it isn't?" Yan Hao chuckled, "But now with our help, I'm afraid that the development of human beings will enter a period of rapid development." ”

"Let's set up a more advanced defensive array here, if everything here is destroyed, I'm afraid that the Blue Star will become history." It's a pity, we don't have spirit stones in our hands, otherwise it wouldn't be a big deal to get a top-level mountain protection array. "Su Mu has some regrets, after cultivating, their luck has always been good, and they can always encounter some adventures, otherwise, if they follow the cultivation progress of the cultivation realm, they will just build a foundation if they die now! Whether or not you can get married is a big question.

Just do it, Su Mu took out the best jade that had been soaked in the spiritual spring, and with the help of Yan Hao, he surrounded the spiritual energy outside with a formation, and secretly felt sorry for himself in his heart, this formation he laid out, if he used the spirit stone, let alone a cultivator in the Yuan Infant Stage, even if it was in the Transformation Period, he could stop it, and if he got the spirit stone in the future, it seemed that it was better to replace these jades.

There is no time underground, and I don't know how long it has been, but the two of them finally got the formation right.

"Let's go out and find out if there are any materials for refining magic weapons and swords, there must be a lot of good things here."

Yan Hao had no objection, and the two of them took one last look at this empty space, held hands, and went out the same way.

In this dark underground, Su Mu and Yan Hao didn't know how long they had stayed, relying on the fact that the two of them now had neither to sleep nor to eat, but only buried their heads in the ground looking for suitable materials for refining.

At this moment, all the good things in this underground world were patronized by Su Mu, no matter what kind of material it was, each material would be taken away by Su Mu as a sample. Although I don't want to destroy the peace of the underground, as a Chinese person, I always hope that my country can be more developed, and it is not impossible to take some materials for those scientists to study.

When the two of them returned to the ground, they were still greeted by ice and snow.

"I don't know how many days we've been underground." Su Mu whispered, buried his head in the space, pulled the phone out, and turned it on.

At first, because they didn't know what unknown dangers would be under the cave, and they didn't know if it would affect these high-tech things, the two of them took all the belongings they were carrying from their bodies and put them into the space.

What a wise choice it turned out.

"Oh my God! It's already mid-September. We've been underground for more than two months. Su Mu exclaimed, although he knew that the time spent underground would definitely not be short, but he didn't expect that he, a freshman in college, would really have to escape the military training that could best produce emotions with his classmates in college. He really didn't mean to.

Yan Hao is also not far behind, the people who left him a message, in addition to Chang Shan and others in the same dormitory, his tutor and the professor of the major course are also very concerned about him, and they have been asking him where he went......

The two of them glanced at each other, and their faces showed a helpless expression. Then they each sent a message to their elders and friends who cared about them, officially announcing the return of the two.

Originally, the two of them thought that it would be over if they replied to the message, but the friends who received their messages called the two of them one after another, regardless of the fact that it was early in the morning, but the final result was that Yan Hao's mobile phone was blown up. Su Mu was much smarter than Yan Hao, and when he saw that the situation was wrong, he quickly turned off his mobile phone again, just kidding, although he is now a monk in the Yuan Infant Stage, he has not evolved the Thousand Hands and Thousand Ears Technique!

With a long sigh of relief, the two looked at each other and smiled.

"Let's go, it's time to go back." Holding Su Mu's hand, he walked towards Yunxiao Tower, which had already been released and put aside.

"Let's go back, it's been more than half a month since school started, and I have to go and see what's going on."

"Where's your magic weapon?"

Shaking his head, Su Mu said that he didn't have a clue yet, "I don't have a clue yet, I have to think about it, what about you?" ”

"I'm going to retreat and refine the Natal Sword. It just so happened that I found the Sunshine Essence this time, and you gave me some Geng Essence last time, and I want to let me go to the Academy of Sciences to get some meteorites when I go back. ”

"Meteorites? That's not bad, just test it out, and we can find it outside the galaxy in the future. ”

Su Mu thought about it, and buried his head in rummaging back and forth in the space, now the space has expanded again, thinking of the urine nature of the space buried treasure, Su Mu doesn't plan to look for it slowly like the previous few times. Directly used his divine sense to turn over the newly emerged land, and all the treasures that were not buried deep were turned out and placed together, and Su Mu even placed them neatly in different categories.

Su Mu didn't look at those finished magic weapons, magic weapons, pills, and talismans, but only looked for them in those materials. Sure enough, he found a lot of good things, "10,000-year-old Xuanyu, Lihuo Sand, Basalt Iron Rock...... Well? What is this? Grabbed a box in his hand, and there was a burst of cold air from the box, Su Muqi was surprised, with his cultivation in his infancy, through a box, it could actually make him feel cold, this thing is not simple.

Su Mu didn't think much about it, and directly gave Yan Hao a portion of these things that belonged to the ore category, "You take these, you can make your natal sword well, and I also have to think about what kind of natal magic weapon should be made." ”

Yan Hao didn't shirk, there was no need to be so clear between him and Su Mu, every time he found something good, he would prepare one for Su Mu, in his heart, his things were also Su Xiaomu's, and he didn't have to share too clearly.

Finish sorting the dirty ...... cough cough cough ...... After dividing the things, the two of them stopped staying, jumped on Yunxiao Tower, identified the direction of the summer capital, and flew towards the summer capital in a leisurely manner.

When they set off to Antarctica, it took three days to reach Antarctica, and when they returned, Su Mu and Yan Hao exchanged experiences while enjoying the scenery along the way, which was very comfortable. During this period, Su Mu thought that after all, he had been late for so long, and he had invited him on vacation, so he didn't plan to rush back to the summer capital immediately. Two people who have nothing to do and are light will have time to be nosy.

Along the way, they didn't see the stealth planes of those countries next door, Su Mu didn't want to care about them, who didn't have a neighbor at home?

Who would have thought that when he arrived in the sky above the Yunxia Empire, Su Mu swept his eyes and found that there were a lot of unfriendly things hidden in the sky above the empire. was suddenly depressed, and without saying a word, he took advantage of Yunxiao Tower, and turned all these things into a mass of materials.

As a result, Yan Hao found that these stealth machines actually contained some materials that could be refined! Good stuff! As a result, these stealth planes are all out of luck.

Yan Hao secretly thought, when the foundation was built, he couldn't fly into the air, but now there is no such restriction, if he has time, he must go to the airspace to clean up, those garbage are really annoying. So, for a long time in the future, the people of those countries next door found that those drones they placed in the airspace of the Yunxia Empire often disappeared for no reason.

When the countries next door found out, they couldn't imagine that the disappearance of their stealth plane was actually because of two young people who were idle and bored on a day trip in the air.

Just when those people were hurriedly looking for the reason, Yunxiao Tower had already stopped in the valley where Yan Hao had advanced at the beginning.

Back to the Luyun community, the two of them decided to go into the space to cultivate, and now the time ratio between the space and the outside world is sixteen to one, since they want to refine the magic weapon, the portable space is a good place.

So, after a simple freshening up, the two immediately entered the space and began to ponder.

Less than a minute after entering, Yan Hao came out again, sent the image taken from their trip to the center of the earth to someone, patted his buttocks, and returned to space. Completely indifferent to how the person who receives his message will react.

Su Mu had no clue about his natal magic weapon, and he didn't know what to make the magic weapon into.

Later, he read a lot of online literature on the Internet, especially those that cultivate truth and fantasy, and got a lot of inspiration from it. Su Mu himself summed up a list of the characteristics that his natal magic weapon should have.

First of all, it must be extremely aggressive, and once that thing becomes its own natal weapon, it cannot be changed.

Secondly, it must also have strong plasticity, and many weapons always have something to counter them, such as Mao and Shield, and he doesn't want to be in such a situation in the future.

Nearly four months had passed in the space, and on this day, Su Mu came out of the retreat room and found that Yan Hao was already wielding a black and white long sword on the edge of the Lingquan and began his own sword swinging practice.

Su Mu stood quietly beside him, and waited until Yan Hao stopped after he finished wielding 10,000 per day, and then stepped forward.

"How many days have you been out of customs?" Su Mu looked at the sword in Yan Hao's hand, that sword gave him a strange feeling, two opposite energies, one yin and one yang, actually coexisted peacefully on the same sword. But when he thought of his own natal magic weapon again, Su Mu shrugged.

"It's been three days, I thought, if you don't come out in two days, I'll call you." Yan Hao waved his hand, a towel appeared in his hand, wiped his sweat indiscriminately, and walked towards Su Mu.

Su Mu took the sword in Yan Hao's hand and observed it carefully, only to see that the sword body was about three feet long, one side was white, the other side was black, and there was a small yin and yang Taiji pattern near the hilt.

The sword body is covered with irregular, but very charming lines, which should have been forged by Yan Hao through a hundred refining techniques, and the sword is also engraved with several commonly used formations for attacking magic weapons.

"Tai Chi? The name of your sword won't just be called 'Taiji Sword', right? That's too perfunctory. "Tai Chi Sword or something, think about the film and television works and literary works, everything related to Tai Chi, more than eighty percent are called Tai Chi Sword, Su Mu only felt that his heart was congested, if Yan Hao's natal sword was given such a name, Su Mu thought, he would definitely not be able to bear to look at it directly.

"No, it's called the Burning World!" Yan Hao rarely announced loudly.

And the burning world in Su Mu's hand also let out a soft sound, the voice was light and pleasant, and he was very satisfied with the name.

Su Mu's eyes widened, not to mention, this name is indeed powerful and domineering.

Seeing Su Mu's surprised look, Yan Hao chuckled, "Where's your natal magic weapon?" Is it refined? ”

Thinking of his natal magic weapon, Su Mu was a little proud, stretched out his hand, and a brightly colored magic weapon appeared in his hand, and then, Yan Hao's eyes widened.