Seeing the heavily guarded exit, Zhou Nan straightened his body and walked forward indifferently.

"Stand still and take out your exit procedures, otherwise, you will be killed. As soon as Zhou Nan approached the range of twenty zhang, a red-clothed law enforcement hall disciple had a blank face and shouted.

Smiling slightly, Zhou Nan didn't care, and with a touch of his hand, he took out a purple token and threw it to this person. After taking the token, this person just glanced at it, cold sweat suddenly flowed from his forehead, and he respectfully returned the token to Zhou Nan, he didn't say a word, he beckoned the others and got out of the way.

After receiving the token, Zhou Nan used his strength to instantly float more than thirty zhang away, passing through the blockade of these people. Zhou Nan's elusive move suddenly frightened these disciples who only had the eighth or ninth layer of Qiling. searched their stomachs one after another, wanting to see if they had seen this senior brother and senior?

But they were doomed to disappointment. Even if they found out Zhou Nan's identity, it was already too late. In a few flashes, Zhou Nan flew out of the Sect Protector Formation and came to the small black valley.

didn't stop, Zhou Nan just took a deep look behind him, then recognized the direction and flew towards the Xuanhuo Stone Mining Area. Three days later, Zhou Nan took a lot of effort to rush to the Xuanhuo Stone Mine.

Shen Nian just swept lightly, and a smile appeared on Zhou Nan's face. After his actions, today's Xuanflint mining area has changed greatly. The number of watchtowers has been increased from four to eight. Even the guards who patrol are always led by a disciple in the early stage of foundation building.

It can be seen that the importance of this Xuanhuo Stone in the eyes of the Xuanhuo Sect. Zhou Nan just casually probed, and felt seven or eight powerful breaths in the mining area. There is even one share, even in the heyday of Southern Zhou, which cannot be compared. There is no need to think about it, this person must be the cultivation of the Great Perfection of the Foundation.

"I can't imagine that in less than two years, the defense of this place is so strict, I really don't know what ability Yue Xingtang has to make the original mining area into such a scene. After a few sighs, Zhou Nan withdrew his gaze and walked forward slowly without stopping.

At present, there are more than 20 monks stationed in the foundation building period in the Xuanflint mining area at all times. One is the foundation of the Great Perfection, and seven or eight are in the late stage of the foundation building. The remaining monks in the early stage of foundation building can only be used as team leaders, leading people to constantly patrol. With such a guard, except for the ancestors of the Yudan period or a large number of foundation building period monks, ordinary people really don't dare to come and make trouble.

From the current scale, it can be seen that the guards here at the beginning are not much worse than they are now, even if they are inferior. It can be seen from this that Yue Xingtang ate inside and out, and what a loss it caused to the Xuanhuo Sect. At least the death of these more than twenty foundation building period monks alone is enough for the Xuanhuo Sect to drink a pot. This is not counting the huge amount of Xuanflint that has been lost over the years.

As soon as Zhou Nan approached the area within a mile of the mining area, he was discovered by the guards on the watchtower. Not long after, a monk in the foundation building period, leading more than a dozen red-clothed law enforcement disciples, came to Zhou Nan's face.

This time, Zhou Nan didn't come to make trouble, so he didn't plan to sneak in. took out a purple token and explained the intention. Immediately, at the invitation of the foundation building monk, he walked into the mining area.

Refusing this person's invitation to introduce him to those fellow practitioners in the foundation building period, Zhou Nan entered the mine with a smile. As soon as Zhou Nan entered, the monk in the early stage of foundation building had a grim look on his face and left in a hurry.

In a small room, the monk in the early stage of foundation building was standing respectfully in front of an old man in the late stage of foundation building, constantly saying something. It took a long time for this person to finish narrating Zhou Nan's affairs.

Waving his hand, the old man in the late stage of foundation building said in a deep voice, "Don't worry, this purple token, in the entire Xuanhuo Sect, there are only two pieces." The two Jiedan Ancestors each have one piece, and it is impossible to imitate it at all. Therefore, this person must have been sent by the sect master or the Great Elder, and he had important things to do. We just need to cooperate, and we don't care about the rest. ”

"Understood. It's just that senior brother, if something goes so wrong, then our fate..." Before the monk could finish his words with some hesitation in the early days of foundation building, he was interrupted.

"I know what you're worried about, if something goes wrong. What the ancestors of the Dan period can't solve, it's useless for us to worry about it. Just in case, you have to be careful, don't follow in the footsteps of Yue Xingtang. ”

Then, the two talked casually for a few more words, and then went their own way.

After getting off the passage, Zhou Nan recognized the direction and jumped directly to the ground. In this mine cave that was more than ten miles deep, he spent more than a quarter of an hour, and his jumping feet were a little weak, and he finally fell to the bottom of the cave.

After turning around, Zhou Nan easily found the mark he left last time. With the exertion of both arms, a boulder is moved out of the way.

In an instant, a one-meter-square passage appeared in front of me. From time to time, there was a thick burst of fiery red heat, and Zhou Nan's face was bright and dark.

Taking a deep breath, Zhou Nan took out two flying swords and held one in each hand. His arms were planted in the stone in turn, and he climbed down the passage to the bottom of the road. After a while, Zhou Nan's feet were empty, and he came to a huge fiery red space of hundreds of zhang.

Hanging from the stone wall, Zhou Nan Shennian swept lightly and found the cave left last time. Along the stone wall, Zhou Nan crossed himself, and it took the boss's strength to enter the cave. At this moment, he had been roasted into a hot sweat by the high temperature of this magma.

Exhaled a breath of sullen air, Zhou Nan took out the 'Mountain Guarding Array', arranged it around the cave, filled it with dozens of spirit stones, and suddenly the yellow light flashed. The formation was activated, and the high temperature in the cave was isolated.

A casting furnace a few meters square was taken out from the storage bag, and Zhou Nan put it on top of the fire port last time. Suddenly, the ground fire, which was originally more than a foot high, hit the bottom of the furnace and continued to burn. After a while, the thick casting furnace turned red.

Without hesitation, Zhou Nan took out a large pile of ores, channeled them one by one, checked his thoughts again, and saw that everything was not wrong, so he started his casting business happily.

Refining and casting is a tiring job, which not only consumes physical strength, but also consumes the brainpower of the caster. Because, every step, not only swing the casting hammer, but also strike it and it's over. There are complex steps in between. Compared to alchemy, it is also much more difficult.

Alchemy is just a coincidence. Refining weapons, on the other hand, is a process of combining ingenuity and brute force. Only by combining the two well can the caster give full play to the properties of the material and cast an excellent work.

This time, Zhou Nan wanted to cast two things. One is soft armor that protects the whole body. As for the other treasure, it is kept secret for the time being. Because Zhou Nan also doesn't know whether it will succeed.

Compared to the two things, the production of soft armor is much easier. Therefore, Zhou Nan planned to make soft armor first, and when it was ready, he would smooth his hand and find the feeling. When the second work is completed again, the success rate will naturally be much higher.

Soft armor is much more difficult to make than hard armor. To make hard armor, you only need to divide the armor into multiple parts, the mold that should be used is molded, and the hand that should be beaten by hand. Just get the parts done when the time comes, and then connect them together.

But soft armor is different. First of all, it is necessary to refine enough silk threads, and then use special techniques to weave them. Although metal is very malleable, it is difficult to pull out a thread with sufficient strength. And it is this step that precisely determines the performance of the soft armor created after the most reluctant.

Whether the soft armor is good or not depends on whether the silk is made well or not. Therefore, an excellent soft armor refiner has unique skills in silk making. Although Zhou Nan had never refined soft armor, he was only making silk, but it was difficult for him.

The material is very special, when its volume is small to a certain extent, all the macroscopic properties will undergo earth-shaking changes. For example, a very hard metal, as long as it is fine and thin enough, will have very good toughness. It is completely possible to fold and tie knots.

However, because the size is small, the performance has changed, and the toughness has improved, the strength of the material often decreases rapidly. This is a contradiction, and if you want to make soft armor, you can't avoid a conflict with this contradiction. Therefore, as long as this contradiction can be resolved, refining soft armor will no longer be a difficult task.

Fortunately, these problems Zhou Nan has encountered before. I remember when he was a child, his mother used to want to make a brush. It is not very demanding, it is necessary to have enough toughness of the brush. Zhou Hao had a lazy attitude, so he threw this question to him in a whim.

is a caster, he can't use other materials. Therefore, Zhou Nan paid attention to the metal drawing. But after tinkering for a long time, the requirements were not met. In the end, Zhou Hao personally came forward to solve this problem.

But the father's method is also flawed. Zhou Nan was dissatisfied, and it took two months to find a solution to this problem. For this reason, Zhou Hao also specially praised him.

These memories are not only valuable experiences, but also the most sincere warmth in Zhou Nan's heart. Every time he thinks about this, he can't help but be confused.