Along the way, Xiang Yang knew that the underground world was vast. It took a day just for this canyon.

After leaving the canyon, there is a wide valley with many strange looking trees. No matter what species, the leaves are very fat, but they are not high, and the highest is a few feet up and down.

The valley is rich in water. Streams divide the whole valley into small cells. The dark land is soft, and the dark and shiny soil is fertile. Everywhere are clumps of blue grass and aquatic plants growing in the stream.

There is a low hill in the middle of the valley. At the top of the hill, there is a small crater. The hot and red magma keeps rolling down. The high temperature evaporates the water next to it into a mist. After it spreads, it is illuminated by the blue light emitted by those weeds, as if the whole valley is covered with a layer of luminous blue yarn, which is beautiful like a dream.

After walking together for so long, you Huo and you Gang around are two guys who like to talk. Without Xiang Yang's intentional guidance, they probably found out the situation of the underground world.

Even the natives don't know how big the underground world is. They only know that several warriors have walked in all directions and finally encountered a bottomless abyss. They can only return, but there should be room to roam across the abyss.

Xi is the method of timing the underground world. Here, there are turbulent underground rivers and streams. The aborigines count the time according to the rise and fall of the water surface, one Xi at a time. According to Xiang Yang's own judgment, it should be about the same length as the day in the outside world.

In this underground world, there are dozens of ethnic groups, large and small, and the Youzu is the largest one. Therefore, the king of the Youzu is the king of the underground world.

Of course, the scale of these ethnic groups is not large. Even the Youzu has only a population of thousands, and the other small ethnic groups are as many as hundreds or as few as dozens, all of which are estimated to be less than 10000.

This is not because the underground materials are poor. On the contrary, the climate here is warm and humid, and there are many edible things. For example, most of the plants in the water are good ingredients, and there are endless fish in the underground river. There is no need to worry about the lack of food at all.

However, in this underground world, indigenous people have natural enemies.

Here, there will be a big Xi every 900 Xi. At the time of big Xi, the water level of the underground river will drop to half of its normal level. At this time, a monster will attack.

It's a flying snake with a dragon head, a snake body and bat wings. It's huge. The aborigines call it Ming sting.

In the ancient books of you family, Ming thorn appeared in the underground world at the same time as you family.

Logically speaking, with the strength of the aborigines, they can't stop the Ming sting from hunting them. However, it's strange that every time the Ming sting attacks, it won't kill them all. Instead, it will leave after eating a certain number of humans. It usually doesn't know where it will stay until the next day.

Over time, the Aborigines have become accustomed to such a life. Whenever the stinger attacks, they are too lazy to resist. Even some old and weak people take the initiative to die, so as to keep the life of the middle-aged people in the family. Faintly, they have become the food of the stinger.

As like as two peas, there are many strange things in the underground world. For example, the fish caught, two of which are exactly the same. One is eaten without food, but the other may be poisonous. The same is true of those seemingly ordinary aquatic plants. From time to time, people will be poisoned and die.

Of course, this proportion is not high. There may be one in thousands, but how terrible is it to have death with you from time to time? There are often indigenous people who can't bear this pressure and commit suicide.

Various factors have led to the slow reproduction of human beings in this underground world, which has been inherited for thousands of years.

It is precisely for this reason that here, almost all normal people look very little at life and death. If they are put outside, no matter how ferocious outlaws are, they will not have the madness of completely ignoring life.

You people don't know how to cultivate immortals, but everyone is a body refining expert. From Xiang Yang's perspective, almost everyone has a realm above the silver body realm, even his highness who is about his age.

Your Highness's name is youtan. She is the only daughter of Yousheng, the king of you family. Some time ago, the king of you family was suddenly poisoned. Although it was not fatal, she became crazy. The high priest of the family said that it was madness and could be cured only by taking the blood of a bird called Wenlei. Youtan took people out to look for it, but unexpectedly, Wenlei didn't find it. Instead, she met an immortal...

It took another day for a group of talents to pass through the valley and enter a canyon. They walked for dozens of miles. An underground river dozens of feet wide cut the canyon into two sections. Above the underground river, there is a natural stone bridge several feet wide. After passing the stone bridge, there is a bamboo shoot like stone forest, and the family land of you nationality is behind the stone forest.

It was a stone house built of stones. It was built along the cliffs on both sides. In the center, outside the tallest stone house, stood a group of aborigines. At this time, they looked inside worried. There were bursts of hissing roars in the stone house, which was completely different from human voice, but like a beast roaring inside.

"Dan mu, how's my father? Eh?" as soon as she heard the voice, youtan hurried over. An old woman with white hair looked sideways, petted her head, and then sighed: "the king's madness is getting worse and worse. Eh, tan'er, have you found Wen ray?"

Youtan shook his head: "no, Youhuo said he had seen it in qianzhangtan, but we went there and only led to a monster. Youyi and Youqi were eaten by the monster..."

Dan Mu sighed: "Alas, Wen Lei hasn't been seen for many years, and it's normal not to find it... But it seems that the clan King's disease can't be delayed..."

Youtan shook her hand, and then pointed in the direction of Xiang Yang: "Dan, I found an immortal brother! He can help my father cure!"

"Immortal?" Dan Mu looked back, the wrinkles on his face twitched strangely, and his face was full of surprise. Xiang Yang was also wearing animal skin. He had made an animal skin vest and was washed away in the dark river. At this time, he was as bare as the aborigines. The only difference was that the animal skin pants were longer than them. Where did he look like an immortal?

"Dan mu, immortal brother is awesome. He killed such a big monster several times. Such a big one..." youtan tried to stretch out his arm and gesture, but it seemed that he couldn't describe the monster's size anyway. He was a little depressed.

"Really?" like the ancient sacrifice, Dan Mu also attached a bone staff in her hand, but it had no vitality fluctuation. It was obviously not a magic weapon. It was just that the material of the bone staff was very special, emitting a dark green, which seemed to be made of some precious stone. She walked slowly towards Xiang Yang with the bone staff, and made a strange sound in her mouth, The eyes, like the bone stick, radiated green light.