Chapter 824 Leaving

Qi Lin didn't know what was originally used to dig this tunnel, but judging from the current situation, it was obvious that this tunnel was so wide when it was formed that even earth dragons could pass through, let alone those and A ghoul about the size of a human.

Although people buried a thirty-centimeter-thick steel plate in the outer rock formation when building Vault No. 1029, in front of the earth dragon with corrosive saliva, the steel plate was as fragile as a piece of paper. Only that An expensive special corrosion-resistant alloy can resist the saliva of the earth dragon, but the price of that thing is too expensive. No matter which force builds a shelter, this material cannot be used to make the outer separation zone of the shelter.

It was precisely because of the corrosion of the earth dragon's saliva that all traces left when the original tunnel was dug were completely erased. Qi Lin couldn't even tell whether the tunnel was dug out by machinery or by mutant creatures. judge.

That's a rock formation dozens of meters thick! You must know that the rocks in this area are black granite with tight texture, high hardness and strong corrosion resistance. This stuff is more corrosion-resistant than simple steel, and it is also very difficult to dig.

If there wasn't a natural underground cavity here, the consortium alliance wouldn't have chosen to place Vault 1029 here - for no other reason than because it was too difficult to excavate.

Even humans with high-tech engineering equipment find it difficult, let alone mutant creatures with only claws and teeth.

The last time Qi Lin passed by here, this tunnel had not yet appeared. It has only been a few days. Even if you use a diamond drill bit like that for drilling oil wells, it is estimated that these few days will not be enough to drill such a tunnel. A tunnel comes.

However, Qi Lin has no time to delve into this issue now. The first thing he has to do is to completely block this passage to prevent more mutated creatures from entering Shelter 1029 through this tunnel. within.

That being said, the amount of work required to block such a tunnel can be said to be quite huge...

Fortunately, in order to build fortifications, Zhao Weiju's men brought several engineering armors. In addition, there was a medium-sized cement production plant in the occupied area.

If you want to open such a tunnel, an extremely large amount of earth and stone will definitely be dug out. However, just like the excavation method, these missing earth and stone have also become a mystery - in short, Qi Lin's inside and outside the shelter There was no trace of excavated earth and stone anywhere around.

With no other choice, Qi Lin could only ask the soldiers to dig out the rock wall on the edge of the shelter and use this method of "tearing down the east wall to make up for the west wall" to fill in the tunnel.

The high-power cement mixer started running in the open space, making a huge roar. Although this noise may attract mutant creatures wandering on the surface, Qi Lin would rather risk it than the trouble in the transportation process. risk.

Stones cut from the rock wall, broken bricks brought from the destroyed neighborhoods, etc. were mixed with cement and gradually accumulated inside the tunnel.

It is impossible to block the entire tunnel. What Qi Lin can do is only block one-third of the length. But even so, it is impossible for ordinary mutant creatures to block the tunnel with their own power. Got through again.

As for the "mysterious force" that dug the tunnel in the first place, Qi Lin didn't bother to take care of it. If this "mysterious force" really wanted to dig another tunnel, it would be basically okay to block it all or a third of it. the difference……

"Add all these things to the concrete." Zhao Weiju, who was escorting the prisoners, has also returned. He also asked his men to collect all the discarded steel in the occupied area and transport it to the entrance of the tunnel, and add these things Into concrete, the strength of concrete can be significantly improved.

Several engineering armors held pipes as thick as a person's arms, and uniformly mixed concrete was continuously sprayed from the mouth of the pipes. The soldiers first piled scrap steel and masonry blocks in the tunnel, and then poured concrete on top of the steel. After this layer of concrete has solidified, the first step of stacking scrap steel and masonry blocks is repeated.

The progress of the blockade project was advancing smoothly, and Qi Lin also took advantage of this moment to hand over the command of the Lexus Shield Consortium's armored forces to Zhao Weiju - now, it was almost time to leave.

"When will the fight be over? I'll treat you to a drink." Zhao Weiju patted the smooth shoulder armor of Thor's hammer. Qi Lin also smiled heartily and said, "Okay, I will kill you hard when the time comes."

"Oh, I forgot to mention, I'm treating you, but you pay."

The two were joking with each other, but they both knew...this war was far from over, and it was completely unknown whether they would all still be alive when that day came.

"In short... take care, don't die easily, remember you still owe me a drink."

"You too. Well, but you guys are a strong group, and you have such awesome armor, it won't be easy for you to die."

After saying goodbye to Zhao Weiju, Qi Lin hurried back to Eagle Station and happened to bump into Persephone who had just walked out of the station restaurant.

"I heard, you're leaving, right?" Persephone surprisingly did not try to seduce Qi Lin. Instead, there was a hint of sadness in her clear eyes.

"Well... I have to leave. Actually..." Qi Lin looked around and then lowered his voice, "You'd better leave here. This place may soon become a frontal battlefield. The Lex Star Shield Consortium is here. Nothing good can be gained from this place.”

"I know." Persephone said, tucking a strand of hair behind her ear, "But the people above don't think so. In their eyes, since the price has been paid, the deal must be completed, no matter what. What’s the end result?”

"Then you have to stay here?" Qi Lin frowned. Zhao Weiju was a soldier and it was his duty to stay here, but Persephone was not.

"That's not true. The consortium can safely hand over such a new district full of development potential into my hands. After they elect the governor of the new district, they should come over to take over my job."

"That's good, just be careful." Hearing Persephone say this, Qi Lin breathed a sigh of relief.

"Well, then, see you next time..." Persephone hugged Qi Lin's neck, and after the two had a deep kiss, she watched Qi Lin get into the returning train.

…

"Special flight No. 5559 is about to depart——"