Season spring, valley rain.

It is the twilight of spring, when the seedlings in the field are first planted and the crops are newly planted, and the rain is most in need of moisture.

The road in Lingnan is not easy to walk, but fortunately, the two eight gods lead the way, the big steps of the gods trample back and forth, and the road that is not easy to walk is also trampled on well, and everything that is uneven is trampled clean, and because of the rain today, the two eight gods can be revealed.

Hurry up and take advantage of the rain to move quickly, because as long as the sun appears, the 28 gods will have no strength

The Twenty-Eight Gods are the gods of the night, and they become lazy during the day, and most of the time they will hide directly, just like when they first came to the Akagata clan, maybe they will hide in the shadows, or they will hide in the darkness of the mountains and fields.

The behemoth body can be big or small, and it can change freely.

Yu Zai has already seen that in the daytime, sixteen gods hide in their shadows, and at nightfall, the huge sixteen figures appear from the small shadows under Yu Zai's feet and suddenly rise up, and the way of appearance is very similar to the Aladdin lamp god without smoke.

The location of the tribe of the Earth Yu clan has already passed by, and the area where the mountain god used to be active, has also been stepped by everyone, so he entered Tianbi Mountain, the mountain road does not know how far and near to go, dozens of miles of Cangmo, the opposite side of Tianbi Mountain, is Rongtian Mountain.

"The Classic of Mountains and Seas: The Southern Classic of the Great Wilderness": In the great wilderness, there are mountains, called Rongtian, and the sea water enters the south.

Rongtianling, like the Wushan Mountains and the Geshan Group, is a long form of mountain range, extending southwest to the Great South Ridge.

The road is far away, Yu Zai and Dayi walk in front, when the sky changes and it gets dark, Yu Zai takes out the goo, because the two eyes of the goo can be used as flashlights at night, which is much better than Yu Zai's own sun fist....

"The air pressure is abnormal, I'm afraid I'm going to see the Roaring Heaven Clan here in Lingnan again this year. ”

The Roaring Heaven Clan is coming again, but this time it is not to help the enemy, but to destroy the facilities, but Yu Zai is not worried about the clan, because Qiao Song is at home, and the teacher, as a Qi Refiner, can drive the rain clouds, coupled with the change of the weather vane, the clansmen have the experience of dealing with the Roaring Heaven Clan last time, and there should be no problems this time.

For people in ancient times, as long as the granary didn't fly, it didn't matter if other buildings flew or not.

"We've been walking for a long time, I've been here in this wilderness. ”

Dayi said to Yu Zai: "This is the wilderness of Shangliang, which means 'the land of harvest in the high places'. ”

"The country of fire weariness, continue to walk south from the field of Kamira, about six days and nights, you can see it. ”

"As for the location.....

The country of fire-weary is in the south of the three trees, the three trees are in the north of the country of fire-weary, and the twenty-eight gods are in the southwest of Bifang Bird, the twenty-eight gods are in the east of the country of Yu, and the Bifang bird is in the east of the twenty-eight gods and the west of Qingshui.

An important geographical indication is the nest of the exterminating Mongolian bird, the Hungarian country is in the north of the exterminating Mongolian bird, the Sanshou country is in the east of the exterminating Mongolian bird, the Yumin Republic is in the southeast of the exterminating Mongolian bird, and the fire-weary country is in the south of the exterminating Mongolian bird.

From this it can be concluded that ....

Well, after listening to Dayi's story, Yu Zai began to doubt his geographical knowledge a little.

The road signs in ancient times are too messy.

Dayi himself said that he could straighten it out, but Yu Zai had to draw a map.

"Near Chishui, where the three trees grow, is the Extinction Bird..."

After Yu Zai finished drawing the map, he roughly understood that the country of fire weariness, the wilderness of the wings, and the shore of the red water, these three things are in a horizontal elliptical circle, this circle is biased to the southwest, and the Yu Republic is further south, slightly to the east, and is kicked out of this ellipse, so I feel that the location of the Yu Republic is incompatible with other regions.

But with the "southeast indicator" of the extermination of the Mengyang bird, the position of the feather people is clearly indicated.

There are many mountains in the south, and the location is also ambiguous.

Trekking through mountains and rivers, when Yu Zai set off from the field of Shangliang and walked to the eighth mountain, he climbed high and looked, and in front of that not far ahead, a huge turbid water flowed slowly!

And the city of stone is not far from this big water!

"Here, this is the Red Water Bank, that big city, is the country of fire weariness!"

Dayi pointed to the turbid water: "If you go down the water, you can find three trees, and near the three trees, there is the Winged Wilderness!"

After a long journey, finally, close at hand!

————

Bang!

A landslide occurred in a coal mine near the country of fire.

Yoshijun's entire face was grayish-yellow, not only because of his embarrassment, but also because he almost buried him alive by kicking up dust.

The construction of the mine failed.

Mining behavior, in the ancient mountains and seas, began from the time of the three ancient emperors, but at that time it was open-pit mining, and the ancient ancestors did not understand the essential difference between metal minerals and stones, but felt that this kind of stone was relatively hard, so they would waste a lot of effort to find a way to polish these "solid stones", with solid stones, when they collided with other stone tools, the victory or defeat was obvious.

Of course, in this era of abundant materials, more often than not, it is to start directly, without knocking, and pick up the soil layer, and the mine can be picked up below.

The ancient complete mining industry, in the Xia Dynasty, when the bronze began to be popularized, was able to develop completely, the ancient Qiang people dug mountains in Sichuan and Gansu, the ancient Central Plains people, the ancient southerners were adapted to local conditions, and drilled mountains when there were .....

However, during this period, the excavated mine was still very shallow.

During the Shang Dynasty, large-scale copper mining was already possible.

Later, in the Warring States period, "Guanzi and the Number of Places" summarized the distribution law of minerals in ore deposits, and pointed out that ore deposits can be found according to the symbiotic relationship between ore deposits and minerals.

Li Bing, the maker of Dujiangyan, and his son, dug a salt well, and the Han Dynasty dug a "fire well", which is more magical, in fact, it is a "natural gas well" more than 60 zhang deep, and then use this "fire well" to cook salt.....

During the Western Han Dynasty, there was not only coal smelting technology, but also fire well exploration technology, so it seems that if the population was high enough and the productivity was strong enough, maybe the industrial revolution could be produced.....

But it's just a matter of thinking about it.... Because in practice, there are still many factors that plague you, but these technologies do exist.

At this time, Yijun just wanted to continue to deepen inside, but the reinforcement measures he had figured out failed to do, and after the collapse, many people were buried underneath, and the people of the Fire Disgusted Country were a little sad, and the coal black on their faces was covered with dust.....

"Whew!"

One of the Chinese people spat out the fire, grabbed a handful of coal in his pocket, threw it in his mouth and chewed it.

If the problem of the scourge group cannot be solved, they must risk their lives to open mines here, but the dogs like to fight guerrilla warfare, and people cannot drill into the mountains every day like dogs, after all, the ground still needs to be planted.