Xu Chen's opinion, knowing how to use fire is the real beginning of human civilization.

The alliance tribes such as the Wu tribe, Gonghuo tribe and Yu Gong tribe are already very familiar with the use of fire and have already entered the category of civilization, but the cave dwellers in the south have obviously not yet entered this stage.

If we say tribes such as the Wu tribe are considered caves, they chose large caves.

The advantage of this kind of cave is that it can preserve fire and live in groups on a large scale. It even began to build stones to block wild beasts, insects and snakes. It has gradually taken shape as some primitive houses.

However, digging soil into caves and living in wild places can only be scattered. It is impossible for a crypt to live in too many people, so the scale of it is naturally not great.

According to the same conditions as the earth's climate and environment, the southward direction, the warmer and more moister the climate will be, the more rain, the more difficult it will be to use fire. The speed of evolution will be.

In fact, when the Central Plains and the north of ancient China had already changed dynasties, the Han and the prosperous Tang dynasties were rising one after another, but in Guangxi, Yunnan and Guizhou, it was still a wild place. Until the founding of New China, there were still many people in Guangxi living in caves, and tribes living in trees in Yunnan, Guizhou and Sichuan. The development of human civilization for thousands of years seems to be always frozen in time in those places, and there were almost no changes from ancient times to modern times.

Although Xu Chen was curious, he had no interest in seeing it at most, because from the perspective of the development of world civilization, relying on the development of the river was the only correct choice, and he did not need to compete with the more barbaric southern savages.

The development from plateau mountains to plain areas is the king.

Instead of running from one mountain area to another larger mountain area.

In the next few days, Xu Chen led a large group of people to the five nearby tribes.

Because the Yu Gong tribe was a guide, this quick exploration did not conflict with other tribes, and it also gave him a clearer understanding of the area that stretches hundreds of miles from the east bank of the Wulong River.

The structure is similar to the Wu tribe alliance. Except for the Yu Gong tribe, there are seven tribes of all sizes scattered like satellite tribes in the mountains and river valleys one to three days away from the Yu Gong tribe. They live in caves, wear animal skins, hunter-gathering, and apart from the obstacles in language communication, they are basically no different from the Ba tribe alliance.

In these tribes, Xu Chen mainly understands the population size and living environment, and also collects and inquires about various ores.

Although the gains are not great, for these strange tribes, the appearance of Xu Chen and others is like aliens that makes them excited, nervous and curious.

When all the tribes saw them for the first time, they were all stunned by the equipment and the vine baskets, pottery, etc. they carried. Then, after learning that the Yu Gong tribe and the Mao Tun tribe had surrendered, the emotions of these tribes became extremely frightened and awe again.

The great witches have surrendered and surrendered, so they can only surrender honestly from now on.

Therefore, wherever Xu Chen led the team, he encountered almost no resistance or resistance.

The last stop is the Mongolians.

The location where the Mongolians are located is very difficult to walk, and they need to walk along a canyon for more than half a day.

The mountains on both sides of the canyon are steep, with towering trees and roars of wolf, bear, tiger and leopard. The rivers in the canyon are not small in size, larger than the Ji Cang River, but it is unknown where the river finally flows.

Because it is two hundred miles away from the Yu Gong tribe, the mountains are intertwined and the rivers are crisscrossed. Apart from the ability to distinguish the basic direction, the geographical situation is completely impossible to infer.

However, according to common sense, this river will eventually flow into the Wulong River.

Because the formation of water systems generally has its own rules, following the staggered terrain of heights, all rivers will eventually return to the sea. Of course, it is not ruled out that there is a super large lake ahead, and even the Wulong River flows into it.

The Mongolian tribe has only a size of seventy or eighty people, and is considered a small tribe.

They live halfway up the mountain, and there is a hot spring nearby. The hot water gushes and fog is constantly steaming all year round. In this cold winter, Xu Chen is overjoyed. After a brief exchange with the Mongolians, he couldn't wait to go to the hot spring.

Hot springs may not be anything to the Yu Gong people, after all, they have known each other for a long time, but for a group of Feng and other Ba tribe Gonghunters who have never traveled far away to see the world, it is like discovering a new world.

Looking at the hot springs rolling in the cold winter, the fog rolling like boiling water, all of them were sobbing in a mess, and they were terrified and dared not move forward.

It's so shameful.

Xu Chen's face was twitching in black.

A group of Mongolian women who followed him covered their mouths and laughed so hard that they couldn't stop.

Although the great witch surrendered, the people from these mysterious tribes who came from afar were also very amiable. They gave the clan leader a pottery jar when they met, which made the entire tribe feel great glory, frightened and grateful.

This hot spring is the best item given to them by the gods. It can not only cleanse the body, but also cure various diseases. Moreover, because of the hot spring, the large areas of plants nearby are still green in winter and are even blooming and bear fruit, completely like a beautiful scenery given by the real god.

Therefore, although this place is close to the indigenous tribes in the south, often plagued by them, and is far away from other ally tribes, the Mongolians are still willing to live here all the time.

The hot spring pool is a natural pit surrounded by stones, which is hidden in the green dense forest. The fog is evaporated, looking like a fairyland, with water temperatures neither high nor low, about 37 or 8 degrees, which is just right.

After Xu Chen observed around the hot spring for a while, he jumped into the pool and soaked comfortably.

“Comfortable…”

After three years of traveling, I haven’t even taken a hot bath for a few times. Even if I can’t get anything when I go out this time, just taking a hot spring meal is worth the price.

Several Yu Gong tribe members also pulled off the fur on their bodies and jumped into the water to soak them. Several Mongolian women also took off their bodies and helped Xu Chen and a few people rub their backs.

Seeing the skillful movements of several women, Xu Chen was envious and jealous while enjoying it.

Mongolians live near hot springs, and obviously take baths much more frequently than other tribes. Perhaps because of the more baths, these women have very little body hair, delicate and white skin, and there is no complex body odor that men and women in other tribes can smell from afar. Overall, living conditions are the best among all tribes he has ever seen.

It would be great if this hot spring was near the Ba people.

Xu Chen closed his eyes slightly and enjoyed it, but also felt a little regretful.

Unfortunately, the more you go to the plain area, the less likely it is to appear on hot springs.

There are two ways to form hot springs.

First, the most common volcanic hot springs. The groundwater is heated by magma and flows out of the surface through rock holes. This type generally contains sulfur minerals, which is better for the treatment of skin diseases, but it has an odor and cannot be drunk.

The second type of hot spring is geothermal hot spring. It heats the aquifers in the rock by expanding and rising by heating gas, and sprays out of the surface to form a hot spring.

The hot spring bubbles in front of you are constantly gushing out from the cracks in the rocks in the water, which is a typical geothermal hot spring.

Therefore, the water from the hot spring can not only soak, but also drink.

Seeing Xu Chen and the others soaking in the pool with relaxed and comfortable water, and there were women who helped rub their backs. After the wind and a group of guys cried and howled for a while, they finally tiptoed to the hot spring with courage. Then someone carefully reached out to the tumbling spring water and then the fear on his face disappeared instantly, replaced by surprise.

“No hot!”

"Really?"

"Not hot at all!"

"Soga!"

A group of people became much more bold. After reaching out to try the temperature of the spring water, they were amazed. Then a large group of people began to take off their armor and clothes, one after another jumped into the pool like dumplings. Water splashed in the mist, and a large group of bare wild men began to drink water and wash their faces and rub their dirt.

Xu Chen was supposed to drink it with a sip of water, but suddenly he found a dimness suddenly popping out between a guy's legs. He quickly spit out the water, and swam to a corner with a black face and lying down again.

These dogs are so unpretentious. I have only seen pissing in the swimming pool, but I have never seen pissing in the hot spring.

However, just as he was about to enjoy this hot spring trip and go out for more than ten days of dust and fatigue, suddenly a harsh and strange scream sounded in the mountains not far downstream of the hot spring.

“%￥#@…”

The Mongolian people standing next to the hot spring suddenly changed their faces, and they raised their spears and rods and shouted at Xu Chen and others in the pool.

Several male hunters also pushed the woman who was rubbing her back and climbed ashore. They didn't wear clothes and quickly looked for their weapons.

"Enemy attacks, get ashore!"

Without waiting for Xu Chen's order, the wind roared and jumped up. Then a large group of naked hunters climbed out of the hot spring pool, and had no time to wear leather armor and clothes. They grabbed the bow and arrow spear, Teng Dun's short spear and rushed out into the woods outside the hot spring.

“Huh huh huh huh huh huh huh huh huh huh huh huh huh huh huh huh huh huh huh huh huh huh huh huh huh huh huh huh huh huh huh huh huh huh huh huh huh huh huh huh huh huh

There were no strange and sharp screams in the thick Primitive Forest not far away, and they resounded one after another around the valley.

"Rise the flag and roar, the third team stays to protect Chenga, the first team and the second team attack head-on, the fourth team behind the palace, the rebels will kill and fight against Ga!"

"Chongga~~"

Amid the sound of the horn, a large group of bare-ass savages carrying quiveres, holding longbows, spears, vines and shields and other weapons, rushed into the woods in the direction of the screams.

A group of Mongolian people looked at each other in a glance.

What are the situations? Are these guys not afraid of death at all? I wonder if those savages are like wild animals, and are more flexible than monkeys in the woods. If you rush in so recklessly, you are afraid that you will suffer many casualties?

"Come on and keep up!"
Chapter completed!