From the three-level yellow alert to the four-level blue alert, and finally the warning disappeared, the residents of the entire Rock City behaved very calmly, which has become a habit, just like seeing that the sky is not good, whose mother has to call him to collect clothes.

Life went on, Dawn recuperated for a few days, and then continued to go to school, but this time it was different, and the classmates in the same class saw him with excitement in their eyes, and there was a kind of fear.

It was a kind of psychology that wanted to get close but didn't dare to get close, and Dawn didn't pay attention to it.

He was now fully armed, with a dagger in his right leg, against the outside of his calf, and a revolver in his sleeve, and as for the three bullets, it hung around his neck.

The book has long been burned, and more is better than less.

With the lesson of the last time, he found that he had to bring enough equipment with him, no matter how careful he was, even in the safest place, there was also a zombie attack?

"But if you can sneak away, that's fine."

Now with this skill, he can kill zombies, directly absorb the zombies' fire to improve his cultivation, so that he is expected to be promoted to a first-class soldier in a short period of time.

As for the promotion of non-commissioned officers, don't even think about it, if you are really promoted, it will not be beneficial to your future cultivation, even if you have excellent qualifications, if you cultivate in advance, you will become the eternal current height, that is, a dwarf.

"At least I have the ability to protect myself, and Lao Tzu is not an ordinary person, after nine times of nirvana, the body has long been free of impurities, pure and flawless, and the three-year adaptation period is enough."

"But if you want to avoid this kind of restraint, you still need to start from the school, and I'm afraid I'm going to be busy for a while in the next period......"

He made a series of plans for himself, trying to get out of the school of elementary school students within this year, otherwise there was no way to plan anything else.

Secretly decided, set foot in junior high school again.

"Students, this thing we are going to learn today is very important to you, and that is cryptography."

"For this discipline, it has been known since ancient times, no matter what era, whether it is a high authority or a humble poor, there will be secrets, that is, ordinary people say, who does not have a little secret.

Because it's a secret, I don't want to be known, so I want to hide it, and the password comes into being.

For cryptography, we need to master a lot, such as cryptography history, cryptography notes, classical cryptography convergence, cryptography analysis, cryptography creation, and cryptography decipherment.

From cryptography, we can find that there are many human intelligence ...... that cannot be touched by ordinary people."

The cryptography teacher spoke out freely, and Liming listened quietly, in fact, he is also a password fan, and even encountered a lot of weird passwords himself, and also designed some passwords for himself.

……

"In this class, we continue the topic of the previous class, let's talk about mechanical arithmetic, this discipline is an ancient wisdom, the ancient Mohists are the pioneers, and it is also the predecessor of mechanics in the era of science and technology, and when you enter a secondary university, if you are interested, you can learn mechanics, which is also a popular subject."

……

"Cipher, in fact, can also be classified as cryptography, but he has created his own unique branch, so it is a separate discipline.

This is a very complex subject, and now as a primary contact, the teacher will give you some common code words, such as in the army, warrants between soldiers, flags, special markings, etc. ”

……

"The development of materials science has been so far, and through continuous upgrading, it has shown a thriving scene, but everything has changed, today I will lead you into the world of minerals, so that you can appreciate the charm of the underground world......

……

This time Dawn was very attentive, although he knew a lot, but if he answered the questions too deeply in the exam, it would make people suspicious, and he had to limit the output.

It was more tiring than learning something new, but he found something else to do.

On the fifth day after the awakening, Dawn received a special gift, a fist-sized ceramic jar with a label that said quenching powder.

This jar is very familiar, and although the name avoids the word zombie, it does not erase the fact that this is the ashes of a zombie, although the ashes of a zombie have become a completely new material.

The ashes forged by special grinding, when creating a divine weapon, add a special tempering, which can effectively improve the attributes of the weapon, which is also a direct factor for the weapon to distinguish obvious levels.

Looking at a small box of ashes, if it was before, he wouldn't have looked at it, because it was too ordinary, but now he has some ideas, he has some materials in his hands, and he can practice his hands.

"Swallow, is it okay to go shopping with me at the end of the month, I came to Rock City, and I am not familiar with anything in the city."

"Okay."

For Liming's request, Xiaoyanzi decisively agreed, since Liming saved her last time, Xiaoyanzi has become very well-behaved in front of Liming, and she has done her best to take care of her.

The holiday of Rock City Junior School is once a month, because there are many courses to study, and the time is relatively tight, so there is only one day off at a time, and if there are no special circumstances, there will be no holiday.

Only Heroes' Day and Founding Day have exceptions for five and three days off, but these are once every ten years.

Early in the morning, Little Swallow went out with Dawn, chattering in Dawn's ear to explain her understanding of Rock City, in fact, she was only in the residential area, or only familiar with the scope of her own life.

Dawn sighed and didn't know much about himself, he remembered that there was a free map at the city gate, but that seemed to be for an existence like the Dawn Squad, he would definitely be slapped in the past, and then pinch his face or have a more evil pinch **, thinking about this makes me feel panicked.

Dawn would never doubt that the lower limit of these city defenders was endless.

"I remembered a rough idea last time, but this Rock City is too big, so it's right to understand it first." Dawn thought, and then said to Little Swallow: "Swallow, today we will walk around the living area, learn about the roads that extend in all directions, and look at other streets. ”

Pulling the little swallow and looking at the various architectural styles that are characteristic of the first three streets.

It is close to the city lord's mansion, so the people who live here are either rich or noble, and near the periphery, there are high-rise buildings, crowded into the unit buildings.

He took out a piece of paper and walked with Little Swallow on Third Street to draw, Little Swallow looked at it curiously, looked at the prototype of the map, and asked, "Ah Ming, what are you doing with this?" ”

"Knowing the layout of the city, of course."

"This is in my father's room, why don't you let him show it to you?"

Liming was stunned for a moment, and then said with a smile: "It's better for me to go through it myself, familiarize myself with the distance, and if we encounter an emergency, we can also make the most timely response." ”

"Oh."

Seeing Little Swallow's lack of interest, Liming explained, "Do you know that the city's early warning system? ”

"Of course I know, there are four levels, a few days ago I activated the four-level blue warning and three-level yellow alarm system, as for the second-level orange and the first-level red, I haven't encountered them, but they are both dangerous, I hope they will never be encountered."

Dawn nodded, then looked up at the sky, and said: "When city residents encounter potential safety hazards, turn on the four-level blue alert to let the citizens be prepared, and at this time everyone begins to pay attention, and the army begins to be on alert and starts fighting at any time." ”

"When there is a sudden huge change in the city, and the cause has not been clarified, the three-level yellow alert will be immediately activated, which is also the time a few days ago, the zombie frenzy is coming, but it is not aimed at our Rock City."

"And if you receive the invasion of the zombie frenzy on the same day, it is not a three-level yellow alert, but a two-level orange alert, at this time, the army in the city enters a combat state, and the soldiers and civilians in the city begin to prepare for battle, including supplies, ammunition, and the safety of the residents in the city, and begin to transfer."

"When a level 1 red alert happens, it's doomed to be a disaster, and that's when ...... Both military and civilian personnel are all engaged in battle, and those who do not have the ability to fight directly enter underground bunkers...... By the time this warning was issued, basically the city had already fallen, and street fighting was ......"

Xiaoyanzi's face was pale, she also knew this, but when she heard it again, she felt a pang in her heart, and Liming raised the pen and paper in her hand and said: "And if you enter the street battle, it is the process of starting to save your life, if we are not familiar with these streets and alleys, and we get into a dead end on the way to escape, then we will really die unjustly." ”

"We won't be in that situation!!"

Dawn smiled slightly, "We're just in case, in fact, it's good for us to be able to find the closest underground bunker to us." ”

After that, they all fell into deep thought all the way, and the little swallow followed behind Dawn, following in unison.

"Amin, is this really going to happen?"

"Don't worry, normally, no...... Unless...... Major General City is about to be promoted to Lieutenant General City"

For Major General City, it can accommodate up to 100,000 people, of course, there are not so many people in Rock City, only less than 60,000 people, most of whom live in living areas.

There are three divisions in Rock City, about 30,000 people, which is exactly half of the population of Rock City, for such a ratio, it is the normal value of the population ratio of all cities, otherwise the safety of the residents in the city will not be guaranteed.

Liming looked at the street, a little helpless, he originally wanted to go to the small workshop Haofang City to see, but he didn't expect that he couldn't even get out of the living area, he thought too highly of himself.

"Amin, I will follow you at the end of the month from now on, and let's draw a map together."

"Okay."

Dawn smiled lightly, made a mark on the paper again, and said, "If you can next time, bring the measuring tools, and do your best." ”