It was the idea of Optimus to build an outer city five thousand kilometers away from the original city of bones, so as to increase the defense and reduce the loss of the bones.

The material used to build the city is the wall that was dismantled from the ruins of the Giant's Sanctuary, and it is not difficult to dismantle it thanks to the modular construction technology, but it is difficult to build the city wall.

With a height of nearly 20 meters and a thickness of 5 meters, the small bones cannot stand up even if they can be lifted, and the foundation also needs to be dug deeply, which is a big project.

Liu Qingshan, who looks at the large-scale modern machinery work in his hometown, is a little at a loss, he can easily lift a wallboard but can't hold it, how to get it?

"Sure enough, you should bring a construction system with you when you cross it, and you don't have to be so lucky to do anything, just build the city wall twice. ”

"What should the boss do now?" I hope to know that there is a problem with building the wall, but I can't help it now.

"Let's dig the foundation first. ”

The foundation is easy to dig, and the small bones of the sand can easily dig up the sand with tools, but the progress of the war is still too slow.

Gotta figure it out.

Bang bang bang~

In the distance, a tall figure was running around and retreating, and the dust was flying all over the sky.

"If you don't have the strength, you don't know how to do something. ”

Liu Qingshan's eyes lit up, and he had the idea of pulling Zhuang Ding again, the entire City of Bones was busy, and now there was nothing to do except the pet bone dragon of Queen Melissa-Wangcai.

Most of the time, Queen Melissa is in a free-range state for Wangcai.

"Boss, the boss's name is Wangcai. "I hope I thought the same thing.

"Hehe, now I don't have to worry about no large machinery, the bone version of the excavator lifter, and there is no need to refuel, absolutely environmentally friendly. ”

Liu Qingshan's heart cremated and rushed straight to Wangcai, and Wangcai, who was running blindly, stopped suddenly, and his brain was supported by Liu Qingshan's palm and couldn't pass through.

"Ahh Wangcai bit as soon as he opened his mouth, and he didn't bite into the dissatisfied howl.

"Stop fooling around, come with me to work. ”

"Woo woo woo~!"

Liu Qingshan knew that this guy was unwilling to do business, so he was willing to run away, "Don't want to?" this is what Queen Melissa meant, it's okay if you don't go, get ready to be kicked." ”

"Whew....... ”

Queen Melissa is the nemesis of Wangcai, and when she heard that it was Queen Melissa's order, she could only follow Liu Qingshan reluctantly.

"Be happy, kid it's fun for us to dig sand to withdraw urine and build a small house in a group. ”

Liu Qingshan came with his mouth open to flicker with the heart of flickering, and many people have played with urine withdrawal and sand, but only at that time knew whether it was fun or not.

"Wang?!"

"I'm not human to lie to you. ”

"Woohoo woo "Wangcai means that you are not a human in the first place, what about a liar?

"Just start digging around the original city from here, and the depth will be half your height. Liu Qingshan sat on the brain shell of Wangcai as a driver, and began to direct it to dig a pit and work.

I have to say that the efficiency of Wangcai's serious work is quite amazing, at least in digging the pit faster than a dozen excavators at the same time.

The four big claws dug forward and pulled back, and the four big claws danced out of the afterimage, and the sand and soil flew, and it only took a few breaths to a depth of more than 20 meters.

"Yes, at this rate, you can dig it in half a day. ”

Liu Qingshan said as he set fire to the pit to burn the solidified sand, and he was responsible for setting fire to the bottom of the pit and hoping to set fire to the walls on both sides of the pit.

"Come on, come on. "Hopefully, he was very happy to sit on Wangcai's brain shell for the first time.

"Woo woo~!" "If you don't dig up, you don't know how hard you are, and you don't need Liu Qingshan to destroy Wangcai and do it yourself.

In half a day, a deep pit more than 20 meters deep and 50 meters wide around the City of Bones was dug.

"Dizzy dizzy~. ”

"Don't shake, dizzy. Liu Qingshan was shaken to Venus, and smashed his fist on Wangcai's braincase, "Hang the wallboard, and then dig it after hanging." ”

"Wow~~!"

"Good, obedient. Find a female dragon to be your wife in the future. Liu Qingshan even coaxed and deceived.

"Wow!" (two)

"Phew! You pervert. ”

Wangcai pointed a finger and easily hooked up a board wall, and placed it according to the position under Qingbo's instructions, and Liu Qingshan burned it at the junction to connect it with the bottom of the pit.

The human body welding machine is simply not too easy to use.

Originally, the outer city was a plan to fill in the sand in the middle of the wall on both sides, but now the wall board has a surplus and directly sandwiches another layer in the middle, and because the digging time is greatly reduced, the sand filling is also changed, and it becomes a molten mortar and a layer of white sand is sandwiched layer by layer.

In this way, the sturdiness and the impact it can withstand will be greatly enhanced, fire is really a good thing, without the power of this soul fire, it is estimated that nothing can be done.

It took several times more time to build the entire outer city than digging a pit, and Liu Qingshan looked at the results of his hard work in the past few days, and he was full of a sense of accomplishment.

The walls are fifty meters wide and more than one hundred and fifty meters high, and although they are not very majestic, it is very good to do so in just a few days.

And I didn't really want to rely on it to block the Ultimate Demon Seed, as long as it could block one or two waves of impact, it was enough.

Just when Liu Qingshan was getting nervous, he only heard Hope say: "Boss, have you forgotten something?"

"What?"

There was a loud bang, and a brain shell appeared outside the city! Qingbo, who was in the state of a giant, lay outside the city and said, "Your city gate hasn't opened yet, how can I get in?"

"Forget it!hahahaha, you go in first, I almost thought I had penetrated Attack on Titan, and I was startled. ”

Not to mention, when Qingbo first came out just now, he was really like that scene, which was weird and scary.

Qingbo propped his hands in the air and somersaulted a few times, and his ten-meter-tall body flipped into the city very flexibly.

"Is there anything else that needs to be improved besides the city gate?" Liu Qingshan asked Qingbo's opinion, people are professionals, and it is very beneficial to listen to more opinions as a leader.

Qingbo thought for a while and said, "You can hold two more trenches outside, it won't have a big effect, but it can play a role in slowing down somewhat." In addition, the city gate may not need to be opened, anyway, it is a one-time defense, and the final demon seed will completely flatten the city wall, so it doesn't matter if you waste any more effort. ”

"What about going in and out these days?"

"Just use the rest of the wall panels to make a ramp and tear it down. ”

"Okay, that's it. The rest of the time is to rush out a batch of equipment, and then I will go to the ruins of the Holy Land again and come back from digging for some metal tools. ”

"Well, let's wait a minute. Now that I can get the power stone, there are some things that should still be usable, so I'll take it back and dig out the drum. ”

"By the way, there is one more thing, you have to teach a batch of technical bones as soon as possible, so that they can help you in the future, you can't be busy alone when you see a mage tower. ”

"Don't worry!"