When they went up to the sky and covered their breath, it was difficult for the snowman clan below to notice Lu Chao flying over their heads.

It's just that the temperature of the high air is very low, and the oxygen is relatively thin, but fortunately, Lu Chao's cultivation at the deputy county level can bear it.

When flying over the Yeti City, Lu Chao could see the situation in the city clearly with the naked eye.

Lu Chao estimated that the energy pulse emitted by some kind of equipment of the Yeti Clan destroyed the components in the drone, causing the drone to be unable to conduct reconnaissance in and around the Yeti City.

The Yeti only occupy small county-level cities, and the urban areas of some central cities such as Yunfeng City and Cangsong City are still in a safe state.

It looks like the Yeti are indeed playing a game with the humans of Earth.

The periphery of the county-level small city is densely packed with white snow corpses, which looks a little infiltrating.

But there are still a large number of humans, under the command of the white robe, carrying out various transportation work.

The Yeti Clan was busy with some kind of construction, and Lu Chao saw that a large number of energy stones had been carried from the Star Gate and buried in the pit dug by the snow corpse.

"Are they artificially creating veins?"

Lu Chao estimated that these snow corpses and white robes might have to rely on energy veins to survive, and these energy stones were as indispensable to them as the army's food and grass.

In addition to transporting energy stones, they are also building some kind of facility.

It's not about building, it's just assembling, assembling the various equipment and facilities that have been transported from the stargate one by one.

The shells of these equipment and facilities were all made of alloy carved with runes, and the internal structure was not very clear, but Lu Chao saw that they had stuffed energy stones into these devices to power the equipment.

This seems to mean that all these devices and facilities they make use of rune technology.

And it's a very developed rune technology.

Rune technology and the technology of human beings on Earth belong to completely different technology trees, and the degree of technological development of human beings is still relatively low, and it is obviously at a great disadvantage to fight against this developed rune technology.

Their stargate should also be built using rune technology, and all their equipment and facilities are certified items, so there is no problem at all to pass through the stargate.

Lu Chao couldn't help but think of another thing.

What is the relationship between the mysterious forces behind the scenes of the wilderness and these Yeti tribes?

Why do some items in the wilderness also pass the Yeti Stargate certification?

They should not belong to the same system and may ...... The mysterious forces behind the Wilderness used their rune technology to hack into the Yeti system like a hacker, so that some items, such as his space bag, were also certified by the Yeti Stargate.

In the past, the Yeti clan opened the star gate between the earth and the earth, connected the earth with their planet, revived the aura on the earth in the high-martial world, and began the path of martial arts cultivation.

After more than a hundred years of development, a large number of grandmasters and grandmasters appeared in the human beings on the earth, and began to wage war with their remote-controlled snow corpses, which was the beginning of the game in their mouths.

However, Lu Chao and Yao Chengzhou used the passage of ancient ruins to kill into the interior of the snow field and destroyed a small underground city for them, which may have made them angry and decided to punish the humans on the earth, so they chose Tianhu Province, where the four of them were located, to establish the first Yeti stronghold on the earth.

This method of dozens of large star gates invading at the same time, the human beings on the earth could not react at all, and they could not resist at all, and it seemed that there was no better choice than to accompany them in the game.

All the way to the west, Lu Chao came to the sky above Jiuyan City.

The urban area of Jiuyan City, like Yunfeng City and Cangsong City, has not been occupied by the Yeti Clan, but there is no electricity in the urban area, and there are burning flames and black smoke everywhere, as if it has experienced a catastrophe.

You can also see a lot of corpses on the street.

Lu Chao estimated that it might be that after the citizens discovered the invasion of the Yeti Clan, the panic triggered the looting, and the local warriors did not stop the looting in time for some reason, and even participated in this looting, which then caused even greater chaos.

When the end comes, once there is a shortage of food and there is no way to escape, there is no need for the Yeti to invade, and the humans themselves can destroy themselves.

Because there are more than 30 grandmasters in Huanghe City, and there are hundreds of thousands of warriors who obey the orders of these grandmasters, there has not been such chaos for the time being. However, it is conceivable that as the siege is extended, food shortages will soon occur, and the situation will also be difficult to control.

Under the extreme hunger of people, the biological instinct is awakened, and the behavior pattern is estimated to be not much different from those snow corpses.

If the invasion of the Yeti Clan cannot be stopped, this high-martial world, which can allow Lu Chao's father and daughter to take a vacation, will soon be reduced to a dangerous wilderness.

Now, Lu Chao even began to suspect that all this was not the revenge of the Yeti Clan for destroying the city of the four of them, but ...... His membership level has risen to LV10, and the boss behind the scenes of the wilderness doesn't want him to live too comfortably and wants to make some trouble for him?

Of course, all this is just his speculation.

Lu Chao continued to fly west, but, at the border of Tianhu Province, he crashed into an invisible rune prohibition.

Fortunately, the prohibition is not lethal and has a certain elasticity, otherwise Lu Chao would have crashed into it at such a high speed and directly smashed his body.

Even so, Lu Chao fell from the sky in a daze.

Dozens of kilometers away, there were two bursts of energy from the Nine Turns powerhouse that were approaching this side at high speed, probably coming to check what had hit their prohibition.

Lu Chao came to his senses when he was about to fall to the ground, and he hurriedly flew to the nearby mountains and forests.

Because they had been using the Divine Hidden Technique, the two Nine Transformation powerhouses did not detect Lu Chao's aura after they came nearby, and after a while, they returned the same way they came.

Lu Chao flew along the edge of the prohibition and explored, and found that this prohibition completely sealed the border of the entire Tianhu Province, and when it reached high altitude, it turned into an inward arc, and it seemed that even the top was closed.

No one outside can enter, and no one inside can get out!

Through the ban, Lu Chao saw that human military bases appeared a few kilometers away, and it seemed that except for Tianhu Province, the rest of Huaguo had not been invaded by the Yeti Clan.

The purpose of these military bases may be to find a way to rescue them, and on the other hand, to prevent the invasion of the Yeti Clan from spreading to the adjacent areas of Tianhu Province.

Lu Chao felt that the main reason was that the Yeti Clan had not yet wanted a full-scale invasion, otherwise, this line of defense outside the prohibition would be useless at all.