"Don't underestimate anyone, not even primitives."

Looking at the mountains of charcoal in front of him, Chu Nan sighed in his heart, feeling that he had a lot more confidence in his heart.

It only took less than half a day, the clansmen opened several larger caves, men, women and children went into battle together, found a lot of wood, it took less than three days, so much charcoal was burned, and more importantly, the clansmen thoroughly mastered the charcoal firing method, which is the happiest place in Chunan.

"Next, I just need to hand over some simple things to them and let them complete them by themselves, which can not only exercise their abilities, but also free me, and kill several birds with one stone, so that I don't have to do everything in the future, and I am as tired as a dog." Chu Nan was so happy in his heart, not to mention how beautiful he was in his heart.

"Chief, look, are we still making it?" Elder Shi looked at Chu Nan worriedly, because once he didn't control the fire, and he didn't seal the entrance of the cave tightly, he directly burned the wood of a hole into ashes, for this reason, they also seriously held a meeting of criticism and self-criticism, and then they completely mastered all kinds of fire, and the charcoal quality of the burned was better than Chu Nan.

"Very good, very good, when I have time later, I will teach you some other things, so that the life of the clan can be better." Chu Nan nodded while watching, and hearing Chu Nan's affirmation, although Elder Shi was almost sixty years old, he was still jumping three feet tall with joy, and everyone cheered loudly.

"Chief, what is the use of what you let us burn, black and inedible? If you go out hunting during these times, you may be able to catch a lot of prey. The stone scratched his face, his face that was already covered with black ash became even darker, he opened his mouth and smiled, and the few remaining yellowed teeth were exposed, at first glance, thinking that a few teeth were flying, Chu Nan almost threw a punch and hit the stone in the face.

"That's a good thing, you'll find out later." Chu Nan smiled mysteriously and did not explain.

Chu Nan asked Elder Shi to call more than a dozen strong clansmen and began to instruct them to open up a brick kiln, which is different from the cave where charcoal is burned, and needs to have a chimney, so that the air inside can flow, and then the charcoal can burn more fully and vigorously, so that the temperature can come up, and only then can qualified red bricks be fired.

The space of the brick kiln is larger, it took two days to dig it well, not only to have a place to put the bricks, but also to arrange the position of the charcoal, the vent, the chimney, etc., there are many things that need to be paid attention to, although the requirements are not particularly strict, but once something goes wrong, the bricks of a kiln can be invalidated, which is the fruit of the labor of dozens of young people for several days.

Chu Nan checked again and again, and then carefully recalled the brick kiln in his memory, and finally confirmed that it was basically completed, and then asked the clansmen to move the bricks that had been air-dried into the cave and place them at a certain distance.

It took half a day to finally fill the brick kiln, and then go to the place where the charcoal was set aside to light the charcoal, after the charcoal was lit, the big chimney left in the middle began to smoke, the vent whirred and pumped in, and the burning charcoal began to emit a small flame with a hint of blue in the red gold, and a few feet away from the brick kiln, you could feel a wave of heat coming to your face.

After a day, when the heat in the brick kiln slowly dissipated, Chu Nan led someone to open the door of the kiln, and a blazing heat wave was still blowing inside, so that everyone couldn't help but hide back.

"This is brick, although it is not as hard as stone, but it is stronger than wood, and more importantly, it will not rot, and it is the best choice for building a brick house for living."

Everyone followed, looking at the brick kiln with a puzzled expression, and when several clansmen moved out nearly a hundred red bricks of similar size, each of which was as hard as it could build each other and build a wall, they were all amazed.

"Chief, you are really a god descending into the world, you can get this thing, this is a creation, you are definitely the son of the god of fire, otherwise, how can you let the fierce flames help us work?" Elder Shi's face was furrowed, and there was a line of tears in his eyes, because he faintly guessed Chu Nan's purpose, his heart beat violently, and finally he fell to his knees at once.

"I'm a stone, I'll listen to the chief in the future, under the leadership of the chief, our Tianhuo tribe will definitely become stronger and stronger, even stronger than in the hands of the old chief."

Although the others felt inexplicable, their hearts became uncontrollably agitated, and they knelt down and kept shouting to the chief.

"Okay, my people, with these two things, we will definitely survive the wrath of the fire god, please believe me, I will definitely lead everyone to live a better life, this is my Chu Nan's declaration." Chu Nan was also excited, and finally clenched his right hand into a fist, raised it high above the top, and said loudly.

"Chieftain, chief, chief, chief......"

The kneeling clansmen below were completely boiling, standing up one by one, shouting and jumping, and finally all the voices converged into two words, chief, a huge shout echoed in the barren forest, and no one would have thought that a small tribe of one hundred and ten people had unknowingly embarked on a path that no one could predict.

The young people in the clan have not given up training during this period of time, and in the interval between work, everyone has trained in strict accordance with the methods taught by Chu Nan, which has improved the combat effectiveness of the clansmen a lot, and at the same time, with the same number of people, the prey captured is several times more than before.

Coupled with some simple hunting traps taught by Chu Nan, there is no shortage of food in the clan, but it is still not easy to store.

Chu Nan didn't care about this, and began to let the people of the clan make bricks and charcoal with all their might, then to burn red bricks, and then to build a thick city wall with red bricks to build a gap of 500 meters.

In Chu Nan's original imagination, it would take at least a few months to make some achievements, and it would take at least a year to completely build the imaginary defensive wall, who knew that the learning ability of the primitive man greatly exceeded his expectations, and more importantly, the work ability and speed of the primitive man exceeded his expectations.

In the end, Chu Nan didn't find limestone, so he couldn't burn lime, so he used another method instead, that is, to build up the bricks with mud, and then add a mud wall mixed with gravel behind a brick wall, and then add a layer of brick walls, one after another, a total of twelve roads, at a glance, this wall is at least two zhang thick, even if more beasts want to break through, it is impossible.

Chu Nan told everyone that this wall should be built ten zhang high, no matter how powerful the beast is, don't even think of jumping in, with this wall, then why be afraid of the wrath of the fire god?