Outside the city, at least five Force beasts that were exactly the same as the one just now poked their heads out, and their ugly mouthparts were facing Xicheng.

Lelina remembered the sour smell that Zhu Yuan had just killed, and her lips almost trembled and said:

"They must not be allowed to come near the city."

"Shoot!" The rest of the city walls had the same idea as Lelina, and immediately organized the gunners to shoot.

"Boom, boom, boom" twenty artillery pieces, three Force cannons fired a salvo, the ground shook the mountains, startling Qi Yunshang and Chang Wei who were leading the way in front of them to look sideways at Xicheng.

"What's going on, such a big commotion?" Qi Yunshang asked.

"I don't know?" Chang Wei shook his head and said to Dong Jian'an, the captain of the escort team beside him: "Go and see what the situation is." ”

"Yes."

Dong Jian'an responded and quickly rushed to Xicheng with his teammates.

By the time they approached Hethane, the battle there was over. The four leech Force beasts were bombarded by several rounds of shelling, and the sensation was incomplete, but none of them went out of the city to attack.

"What's going on?" Dong Jian'an ran with Xicheng and asked in a loud voice.

"Nothing, meet a few Force beasts." Zhu Yuan said loudly.

"How many Force beasts, for such a big battle?" Dong Jianan wondered. It's just a few Force beasts, and even the weakest Anping City can handle it.

What's more, Dong Jianan knew that Zhu Yuan was an existence that could fight against the Sage.

Dong Jian'an's words made Zhu Yuan not know how to answer, and it can't be said that everyone is really afraid of the sour and rotten taste, so it's like this.

Fortunately, Xian Renxing reacted quickly and said loudly:

"Brother Xie is concerned, the clouds and fog are dangerous, and we are afraid of unnecessary casualties, so we simply use artillery bombardment."

Listening to Xian Renxing's words, Dong Jianan did not suspect it, and went back to resume his life.

Although Qi Yunshang felt that Xicheng was making a big fuss, he didn't say anything, after all, in the dangerous place of Yunwuze, safety is paramount.

Half a month later, the four cities crossed the clouds without danger.

After passing through the clouds and mist, there was a plain, and in less than ten days, a large mountain stood in front of it.

The mountain is so large that it stretches to the west, and to the east, a wide dirt road a few miles from the mountain stretches to the end of the eye.

The four cities, led by Qingyun City, came to the front of the dirt road and repaired the city. Dong Jian'an, who had been here once, came to Xicheng again, this time he entered the city, specially visited the principal Bai Zhenlong, and only left Xicheng half a day later and led the team to leave. After Dong Chee-an left, an order was passed to Lelina's team.

- All the pilot escort teams, go out of the city to serve as a pilot mission, and once they find that there is an abnormality on the mountain of no return, they will immediately report to Jingtian City.

"No Return Mountain! It's an unlucky name! In the patrol car, Xian Renxing looked at the majestic mountains to the west and said.

Shortly after the order was issued, the four cities started again, heading east around the Mountains of No Return. At the same time, Lelina's team also left Xicheng, patrolling between the Mountain of No Return and Xicheng.

"Captain, is there any way to say this mountain of no return?" Zhou Guangyuan also looked at the majestic mountains to the west and asked Lelina.

Lelina shook her head and said: "I don't know, although I know about the Mountain of No Return, but why it is called the Mountain of No Return, I don't know, and the order only says to guard against the creatures in the Mountain of No Return, and once you find any changes, immediately report to Qingyun City." ”

Xian Renxing saw that Lelina didn't know, and turned his head to worry about the day.

At this time, Bai Tian was not as calm as usual, and as a leader, he had the strongest perception ability. At this time, in his eyes, the Mountain of No Return was like a giant beast that devoured people, and the force between heaven and earth formed a vortex in the Mountain of No Return, hovering over the Mountain of No Return.

Hearing Xian Renxing ask him, Bai Bai came back to his senses, shook his head and said, "I don't know either, but we feel that the mountain of no return is dangerous." Otherwise, there would be no such thing as the name of the Mountain of No Return. ”

Saying that, Bai Bai Wu turned his head to Zhu Yuan, and saw that Zhu Yuan also looked at the Mountain of No Return with a solemn expression, and Bai Tian Wu asked:

"Zhu Yuan, do you know the Mountain of No Return?"

"Yes." Zhu Yuan did not withdraw his vigilant gaze, but looked at the Mountain of No Return and said, "Have you ever heard the saying that there is a mountain, a river and a forest? ”

"One mountain, one river, one forest!" When Lelina heard this, she brought back memories in the depths of her memory.

"Captain, you know?" Xian Renxing saw Lelina's expression and asked.

Lelina nodded and said:

"You also know that I am from the Third Holy City. The Third Holy City is located at the foot of the Mountain of No Return, and a defensive wall has been built along the Mountain of No Return, I didn't think much about it at first, until Zhu Yuan talked about a mountain, a river and a forest, that I remembered that I had heard the adults in my family talk about it. ”

"A mountain is a mountain of no return, a river is a blue water river, and a forest is the secluded forest of the south, all of which are natural barriers to prevent Force beasts from invading human territory.

There is the third holy city at the foot of the Mountain of No Return, the first holy city is stationed on the bank of the Blue Water River, and the second holy city is guarded beyond the secluded forest, and the three holy cities have become the forefront of human beings against antigenic beasts. ”

After speaking, Lelina looked at Zhu Yuan, as if asking Zhu Yuan's opinion.

Zhu Yuan was not surprised that Lelina knew this.

As long as the people of the three holy cities are not civilians living at the bottom, they should have heard of the saying that there are mountains, rivers and forests. And the Lai family, where Lelina is located, seems to be a big family, so it's not surprising that Lelina knows.

So Zhu Yuan answered:

"The captain is right, the three holy cities are the front line of protecting human beings, and a mountain, a river, and a forest are natural barriers to block the Force beasts, and they are also forbidden places and dead zones for human beings.

Stepping into the Mountain of No Return, there is no possibility of returning, stepping into the secluded forest, it is like entering the Netherworld, and the name of the Blue Water River is named after the Force that dyes the entire river surface blue, and beyond these three forbidden places is the world of the Force Beast. ”

"In other words, there are Force beasts in the Mountain of No Return?" Xian Renxing asked when he saw Zhu Yuan say this.

Zhu Yuan turned his head, looked at everyone, and said in an accentuated tone:

"It's not that there are Force beasts, but there are countless Force beasts, and the Force mother nest."

Zhu Yuan's words startled everyone, and Cha Si, who had just joined the team, said in surprise:

"How can there be such a thing, doesn't it mean that the enemies faced by humans are mutant beasts, and the Force beasts are only a few?"

And there are not a few people who have the same thoughts as Chasi, at least from everyone's expressions, except for Leilina and Bai Tianwei, everyone else has the same idea as Chasi.

"That's just for safe humans, do you know why you distinguish between safe zones and danger zones?"

Zhu Yuan asked, seeing everyone's blank expressions, Zhu Yuan could only continue:

"That's because the safe zone we live in is under the protection of the Twelve Holy Cities. The outermost part of each of the Twelve Holy Cities is a protective wall separating the danger zone from the safe zone. In the Seventh Holy City is the Seventh Wall, and the vast world outside the Seventh Wall is the world of the Force Beasts, and we humans can only be reduced to food. ”

After Zhu Yuan finished speaking, there was silence in the patrol car, and after a long time, Zhou Guangyuan asked:

"Isn't it possible for the Twelve Holy Cities to clear the Force beasts from beyond the protective walls?"