Following Zhang Yuan, Chu Chen came to the corner of the giant stone slab.

Here, there is a small stone slab, which is movable.

Zhang Yuan stretched out his hand, grabbed the groove on the small stone slab, attached a little earth-based magic element, and easily lifted it aside.

After the stone slab was lifted, the stone ladder below was revealed, and Zhang Yuan stretched out his hand to guide Chu Chen, signaling that Chu Chen could go down.

Chu Chen stepped on the stone ladder and slowly descended to the bottom.

Obviously, this is a reservoir made of stone faces, whether it is the surrounding wall, the ground at the bottom, or the top of the head, which has countless small holes, is composed of nearly complete stone slabs.

Although there are stone slabs all around, the inside is not dim, and the air is relatively normal and does not look dirty.

To have such an environment, the small holes on the top of the head are indispensable!

"Da, da, da..."

Behind Chu Chen, Zhang Yuan also walked down slowly.

After coming to Chu Chen's side, Zhang Yuan introduced to Chu Chen: "I have asked my earth magicians to reinforce the wall of this reservoir to a thickness of more than half a meter, so there is no need to think about safety." As long as we wait for the east bottom of the reservoir to dig and build dozens of water pipelines, it will be officially completed! ”

"Dozens?"

Chu Chen looked a little surprised, and asked Zhang Yuan: "Uncle Zhang, there are no springs here, and there are no rivers flowing in, where will there be so many fresh water resources?" It's impossible, arrange a large number of water magicians to stay here every day and condense the water element, right? ”

If this is an ordinary person, Zhang Yuan is estimated to be smiling and lazy to explain.

But it was Chu Chen in front of him, and Zhang Yuan naturally had to be cautious.

Pointing to the depths of the reservoir, Zhang Yuan explained to Chu Chen while leading Chu Chen to the stone ladder: "The inside of the reservoir is similar to here, there is nothing to see, Boss Chu, you come up with me, I will explain to you, where does the fresh water in this reservoir come from!" ”

Seeing that Zhang Yuan seemed to have thought about this issue a long time ago, Chu Chen had a faint smile on his face, followed Zhang Yuan, and returned to the reservoir.

After the two came to the top of the reservoir, Zhang Yuan led Chu Chen to the west of the lake.

Pointing to the forest area to the west, Zhang Yuan smiled at Chu Chen and said, "Boss Chu, come and see, although the flood control forest area has not yet been born, the general outline is actually there!" ”

After a pause, Zhang Yuan explained to Chu Chen: "Have you noticed? The whole forest area seems to be a whole area, but in fact, it is still composed of three forest areas. Between them, there are still two gaps a few meters wide, but we are standing far away and the branches are thick, so it is difficult to see. ”

Chu Chen's gaze followed Zhang Yuan's fingers and looked at the forest area, and sure enough, he saw two gaps in the forest.

Not only that, Chu Chen's gaze continued to move upwards and saw the mountains in the distance!

With a flash of inspiration in his mind, Chu Chen blurted out: "Uncle Zhang, don't you want to dig out two rivers by yourself?" ”

"Haha! Hahaha~! ”

Zhang Yuan laughed a few times and praised Chu Chen: "Boss Chu, I don't know about other aspects, but your logical thinking and reasoning are still quite powerful!" ”

Chu Chen frowned and asked Zhang Yuan: "In fact, the problem of fresh water, the lake in the east is enough to solve it, and digging and building two rivers is not a small project!" Uncle Zhang, what is the point of your doing? ”

Zhang Yuan shook his head and explained to Chu Chen: "The lakes in the east are gathered precisely because of the flood in the west!" Once we've stopped the floods, it won't be long before they're gone! ”

Seeing Chu Chen nodding and expressing his understanding, Zhang Yuan continued: "As for flood control, maybe you don't know much about Boss Chu. In fact, flood control and flood control are not only to block the flood, but also to find a way to let the flood water have a place to pour! ”

Pointing to the north and south ends of the forest area, Zhang Yuan said with a smile: "If you look down from the top of Boss Chu, you can find that this entire forest area, like a crescent moon, firmly protects our current position!" Even the giant pit we are standing in now has an arc, like a moon and a half, side by side with the forest area. ”

Hearing Zhang Yuan's explanation, Chu Chen couldn't hold back and summoned the bone dragon in hell.

After inviting Zhang Yuan to the back of the bone dragon, Chu Chen commanded the bone dragon to gradually circle and fly to a high place.

Looking down, sure enough, the forest and the lake, like two moons, were side by side, and at their ends, they seemed to be about to stick together.

"Moat!"

Hearing Chu Chen's exclamation, Zhang Yuan cautiously grabbed a keel, and reluctantly smiled: "Well, the moat!" Normally, the water in the river, when there is not much, will flow through the middle two rivers and join the lake. When a flood breaks out, most of the extra flood will be blocked by the forest area, and the blocked flood will flow to both sides, converging with both ends of the lake, and after we dig and build the moat, these converging floodwaters will flow from the north and south ends of the base to the east! ”

Chu Chen was shocked when he heard this, and while sighing at Zhang Yuan's wonderful idea, he also thought of many inconveniences: "But, but Uncle Zhang, if you design it like this, it ......?"

Zhang Yuan wiped the sweat from his palms, perhaps because he felt that his palms were sweaty and he couldn't grasp them steadily, so he simply hugged the keel in his hand.

Then, he interrupted Chu Chen's words and said: "Boss Chu, you don't have to worry about anything, it's only the early stage of construction, I'm just ready to develop like this, as for how to develop in the future, you want me to design, or you want your architectural team to design, it's okay!" Belch... Boss Chu, since we've seen it, can we go down? ”

Glancing at Zhang Yuan, Chu Chen found that his forehead was sweating, his lips were white, and he hurriedly commanded the bone dragon and circled down.

After falling to the ground, Chu Chen helped Zhang Yuan, stepped down from the bone dragon, and asked with a smile: "Uncle Zhang, it's not the first time you've sat on this bone dragon, why are you scared like this this time?" ”

Zhang Yuan's legs were weak, and after swallowing his saliva, he said to Chu Chen: "The first two times there was a big basket, I don't have to worry about falling, this time it's on the back of the bone dragon, there are gaps everywhere, if I don't stand firm, then won't I fall down?" ”

Chu Chen was speechless for a while, but he secretly wrote down this defect of the bone dragon carrying people.

Seeing that there was nothing else to do here, Chu Chen said hello to Zhang Yuan and left first.

And the flood control facilities in Ningqiu City are even so settled.

……

Chu Chen, who returned to the base, saw that it was getting late, so he just inspected the base for a while, and did not arrange any other affairs for himself and others.

However, after dinner, a few old friends were ushered in at the base!

"Boss Chu! Boss Chu, come out quickly! Ha ha! Liu Lin is back! Liu Lin: they're back! ”

Finally, with some free time, Chu Chen was ready to sort out all kinds of materials in the different dimension, but he didn't want to, Fang Sen's surprise shout came from outside the door.

Chu Chen raised his eyebrows, got up quickly, and came to the door, but the moment he opened the door, he hesitated on his face and put on an indifferent look.

After opening the door, Chu Chen glanced at Fang Sen outside the door, and walked leisurely to the outside of the compound, and at the same time, he casually shouted: "Come back, come back, I don't necessarily want them to stay, what are you happy about?" ”

Fang Sen was stunned when he heard this, with a worried look on his face.

Chu Chen walked out of the gate of the compound, just a few meters away from Liu Lin, Tang Junfeng and others who came from the south.

Glancing at Liu Lin and the others, Chu Chen saw that their group was not only Tang Junfeng, Liu Lin, Jiang Pei and Xu Fei, but also several members that Chu Chen had not seen.

Among them, there is a woman who looks slim and moving, but some of them are slightly weak, giving people a feeling of weakness.

Seeing Chu Chen, Liu Lin took the lead in running over and shouted excitedly: "Boss Chu! I... We're back! ”

Chu Chen faced Liu Lin, stood with his hands in his hands, and said indifferently: "Do you still know to come back?" ”

Seeing Liu Lin speak, as if he wanted to defend something, Chu Chen threw out a stick towards Fang Sen beside him, and shouted: "He Rong, Ye Xiang, Fang Sen!" Pull Liu Lin and Tang Junfeng down for me, Liu Lin will be punished with thirty sticks, and Tang Junfeng will be punished with fifteen sticks! ”

Seeing that everyone was stunned on the spot, Chu Chen turned his head and glanced at Fang Sen, Ye Xiang and He Rong.

The three of them hurriedly took steps and walked towards Liu Lin, but they were all entangled.

Chu Chen saw that the three of them had started to move, so he turned around and walked towards the compound.