The immortal refining array in front of him, as long as he can understand it, it is useless to use it to refine magic weapons and spiritual weapons.

However, this thing is very complicated, and it cannot be moved for the time being, so if you want to use it, you will have to spend a lot of time in this place.

He can only take his time and ensure that Nancheng will not be broken, so that he will have the opportunity to enlighten in the future.

"Well, can you read some?"

At this time, Yang Miaoyin flew over, saw Xiao Mu observing the altar, and asked with a smile.

"The grade is too high, this is definitely left by the immortals in the mythological era, where is it so easy to understand."

Xiao Mu shook his head, retracted his gaze, turned to look at the air, Yang Miaoyin and his brother had come over.

"How's the overall situation now?"

The altar in front of me is a dead thing, and it can't be used for the time being, the safety of Nancheng is the key, only if Nancheng is preserved, it can be studied well in the future.

"It's not bad, the insect left nearly a third of the corpses, and if we want to replenish it again, it will take at least a day, enough for us to breathe a sigh of relief."

Yang Miaoyin said with a hint of relief, there are a large number of modern weapons in Nancheng, and if the insects want to get close, they have to face a large amount of artillery fire, and even if they pass through the artillery fire, there will be thousands of people holding weapons waiting for them.

It can be said that as long as there is enough ammunition and no accidents happen, it is not difficult to hold on for a long time.

"What percentage of ammunition was consumed this time?"

Xiao Mu is not surprised, every city can use modern weapons to block the initial insect tide riot, the difference is only time.

The city has relatively few weapons, and it has less time to resist, so if you can't use up the insects, but your ammunition is exhausted, you will face the risk of breaking the city.

"About one-tenth, according to the current situation, it can last for a month, and the surrounding alien insects should be consumed about the same, I'm afraid that this time the alien insects will play some tricks, after all, there are high-level aliens to lead."

Yang Miaoyin said.

In this kind of defensive warfare, scientific and technological weapons play a huge role, as long as whoever has enough ammunition, to a certain extent, it is enough to hold on to it.

It's a pity that ammunition is consumed too quickly, and most cities are not enough, and only large cities like Nancheng can barely maintain it with a solid military industrial base.

At the moment, only Amagi has a strong industrial system that can sell some ammunition to aid the surrounding cities because it doesn't have to worry about the insect tide for the time being.

The other Biancheng, which was saved by Xiao Mu, was only enough for his own consumption, and there was nothing extra for the time being.

"If it's a protracted war, I can't stay here anymore and need to help other cities."

Xiao Mu looked at the problem from the overall situation, after all, it was impossible for high-level outliers to target every city, and if they were not targeted, he would pay attention to help break the insect tide and develop these cities.

There are also those that have fallen, and they are also resource points that are saved, and they don't have much effect at this stage, but after a few years of development, most of them can help other cities in turn.

Based on this big picture, Xiao Mu chose to change his plan.

"I think this is very good, the situation in Nancheng cannot be changed for the time being, and it will be of great use in the future to help others."

Yang Miaoyin agreed, this is the so-called east is not bright and the west is bright, there is always a choice that is more beneficial to human beings.

"If there is any change, you notify me in time, basically on a global scale, I guarantee that the support will come within half a day, and you can come over in an hour at the earliest!"

Xiao Mu said seriously, the value of his stay here is definitely not as great as going out to help other human beings.

"Okay, I will, do you want to take a break before you go."

Yang Miaoyin nodded.

"After resting for half a day, I'll go rescue the next city and take a look at this formation."

Xiao Mu thought for a moment and said.

"Wait, isn't there a formation in the inheritance left by Lu Dongbin, maybe it's still very systematic."

Xiao Mu suddenly had a flash of inspiration in his mind, thought of something, and hurriedly turned his head to the big man next to him and said, "Rhubarb, come here." ”

"Whew."

Rhubarb let out a low roar, jumped slightly, and landed in front of Xiao Mu.

"Reveal your Pure Yang Sword Intent."

Xiao Mu wanted to check the condensation of Rhubarb's sword intent, and if the condensation was good, he might be able to try to open the prohibition among the other two inheritance jade slips.

"Wang!"

Rhubarb nodded, and the gaze in his eyes suddenly became sharp, with wisps of burning sensation, shooting out like substance.

Poof!

The soil in front of him was pierced with two small holes, this is the power formed after the condensation of spiritual power, and it is obvious that Rhubarb's pure yang sword intent has been able to initially leave the body.

"If you have cultivated well, the next thing is to mobilize your strength and fuse the sword intent attack, which is equivalent to a magical power to make up for your lack of long-range attack."

Xiao Mu showed a satisfied look, touched Rhubarb's head, and took out a jade slip: "It should be able to be opened." ”

He put the jade slip on the rhubarb forehead and said, "Use the sword intent to impact the prohibition above." ”

Rhubarb nodded obediently, and then the golden light flashed in his eyes, and the sword intent turned into a small sword and injected it into the jade slip.

Soon, the jade slip emitted a golden light, becoming scorching, and a circle of golden lines emerged, changing rapidly, as if opening an incomparably complex lock.

"Awesome."

Xiao Mu's eyes lit up, leaving such a powerful means on a jade slip, Lu Dongbin's strength was quite strong.

A figure appeared in the golden light, saying the words left back then: "Since you have opened this jade slip, it means that you want to learn the way of the formation, this way is too profound and mysterious, remember not to indulge, cultivation is the foundation, otherwise even if you have understood the immortal array, if you lack enough cultivation, it will be in vain." ”

After saying that, the figure turned into a streamer and dispersed, and Xiao Mu could feel that the prohibition on the jade slip that prevented him from probing had disappeared.

"Rhubarb, it's well done, I'll reward you with a third-order insect meat."

Xiao Mu smiled, and directly took out a piece of third-order alien worm's flesh and blood and gave it to Rhubarb, which was regarded as a reward for the other party.

"Wow!"

Rhubarb flicked its tail happily, the third-order alien insect was of great benefit to it, and it could speed up its growth after eating it.

Xiao Mu smiled, put the jade slip on his eyebrows, and the thought probed into it, unlike the jade slip that inherited the pure yang sword technique, a large amount of formation knowledge appeared in this jade slip, and it was like a sea of smoke.

This formation inheritance is also called Pure Yang, the name of Pure Yang Array Classic, from the lowest level of entry foundation, but the highest level of immortal array knowledge is available, and step by step, very systematic.

"It's really a systematic formation inheritance!"

His eyes lit up, Xiao Mu showed a look of joy, the inheritance of a systematic formation is much more precious than that of an unsystematic.

In the previous life, the formations he learned were all scattered, they were all useful to learn, and he lacked a complete system, so the level was not very powerful, at most, he studied the spirit array, and no matter how complicated it was, he couldn't understand it.

Now the system here is just to make up for his shortcomings, and go one step further.