There is no rock structure in the few areas that have been reinforced, all metal plates have been installed, and most importantly, Mars is full of hematite, which can be used as a raw material, and of course it will be scribed in the construction of the cave with reference to future developments.

After the main passage, three passages A to C are connected, and each passage has been fitted with isolation doors at both ends to prevent the beetles in the hole from impacting outward.

The passage section of Zone D connects Area A and Area B, and Zone C connects Area E and Area F to two areas that have not yet been installed and renovated.

"Okay, this mission is to find out what kind of beetle is harassing Area D, and the other is to assist in sealing off the other end of Area D and installing a cordondown door." Thunder spoke to the rest of the team in the liaison.

In addition to the three 16 squad vehicles, there are also engineering vehicles and a construction convoy.

Soon the closed door at the other end of Section B was opened, and the convoy drove into the passage of Section D.

The headlights on the front and body of the car soon illuminated the passage, and most of the D-zone passage had been reinforced and circuited, but it was not yet energized.

Zhang Heng's car left the convoy and went to check the connection of Area B, and returned to the team after finding no hidden beetles, at this time the convoy had stopped, and the construction team had begun to work.

According to the original plan, the first step was to construct the blockade gate, and then Team 16 would move on, and the engineering team would operate in the passage of Sector D with the protection of the blockade door.

"How?" Lei Ming got out of the car and asked Liu Jing, who was standing beside him.

Liu Jing shook her head.

After Lei Ming saw that it was safe, he began to instruct the engineering team to speed up the construction.

Due to the gravity bottom here, all the originally heavy blockade doors were much lighter than those on the Blue Star, and with the help of construction machinery, they were quickly erected, and the rest was reinforcement works.

Lei Ming and his team stood at the intersection of Area D and the other three G, H, and I Zones and began to check it.

"Captain, come and see, there are some traces of crawling here." Soon, some of the team members discovered the traces in the H passage.

Lei Ming squatted in front of the traces and carefully compared the data, "Mites, and cockroaches." What a disgusting guy. ”

"Is it much?" Long Wu asked on the side.

"There aren't many traces on the ground, you can check the top."

Soon some traces were found at the top of the G sector.

"Be careful, usually these beetles appear in the dozens, hundreds."

Lei Ming led the team back to Area D, and when he saw that the blockade gate here had been completed, he took three cars to Passage H, where there were more traces on the ground.

The H passage is not large, only about 2 cars can pass side by side, and the height is not high, just 5 or 6 meters.

Until the next fork, the convoy did not find any beetles, so it had to install surveillance equipment and turn to the other side of Area G.

The team searched for two days in a row, but did not find the beetle and had to return to Area D, which had been completed, and at this moment it was already a man-made building passage, and the blockade doors of Area G, H, and I had been rushed out in the past few days.

The main reason is to block a few more while the team is there, and when the team goes back to repair, this place can still be built inward.

As time progressed, the team had advanced into the depths of the cave for a long time, and after blocking seven or eight passages, the team found the beetle, but it seemed to be alone.

Now that they had found the beetle, the team left the engineering convoy, and the blocked passage was enough for the people here to build for a while.

When he saw the lone mite, Zhang Heng felt a little numb on his scalp.

Although he knew that there was such a thing parasitism in people, those protists were so small that they could be said to be ignored, but now that they have become such a big one, Zhang Heng can't stand it a little.

Mites belong to a class of tiny animals of the Arachnida, the arachnida, and they are similar to spiders, but spiders are much larger than this one.

Like spiders, mites have a pair of front jaws and four pairs of legs. However, after the mutation, the largest individual can reach 2 meters tall, and the small one is half a meter, and the first pair of feet is no longer used for walking, but for attacking.

The front of the two feet is very sharp and the shell is relatively strong, and it is common to poke the food to death with the front two legs, and then use the sharp front jaws to chop the target for hunting.

The mutated large mites will not only pick up small particles of hematite on the ground, but also attack other insects, and humans are the last target to eat, so to a certain extent, the beetle brawl here distracts the risk of attack for humans.

Cockroach Xiaoqiang, known as the king of immortality, almost any complex environment has this figure, even if the nuclear bomb washes the ground, this brother can survive.

The recipe ranking of cockroaches is relatively high, and humans are relatively high, so it is mainly Xiaoqiang who generally attacks caves and humans, and mites can only attack humans when the fine hematite in an area is eaten.

But it doesn't mean that mites can't be eliminated, because these beetles are too fecund, and if they are not removed, sooner or later they will become a disaster.

In addition to reducing the threat, hunting these beetles also provides access to their excrement, which is usually mixed with biologically refined metal, which is harder than humans' own refinement, and is generally the preferred material for gun barrels on some new ships.

So for these things, human beings are loving and ruthless.

As the team progressed, they eliminated a group of mites and cockroaches that were fighting.

After the scuffle ended, Lei Ming and these people also cut off a few of the largest cockroach legs, put them on the fire to roast, and then took out the meat inside, and directly dipped some seasoning and gnawed them, this move made Zhang Heng and Bai Yun vomit directly.

"You two, you're really blind, this is super high protein, nutritious." Long Wu stuffed a little meat into his mouth and chewed hard.

"Heh, forget it, let's eat first, and we'll have to gnaw on this one day when they run out of food." The others didn't talk nonsense, and they all took one leg and ate it.

Zhang Heng and Bai Yun watched these people eat happily, their faces turned green, they could only turn around, not look at these people, take the individual dry food in their hands, and eat slowly.

"You scum, the devil is going to eat those, but I have been carrying food for three or four years." Zhang Heng endured the chewing sound of those people in his ears while stuffing food into his mouth, but the insect corpses around him with these chewing sounds were like hell, and the pictures were constantly presented in the minds of Zhang Heng and the others.

In this eradication battle, the team did not use hot weapons, but waited until the insects on both sides were almost killed, and then rushed up with cold weapons and slashed.

Lei Ming used a pair of fists, and the others either used bastards or machetes, because there were not many insects, so even Liu Jing, who had the worst physical fitness, could easily rely on the armor to fight.

After eating, the group continued on their way, but only stopped after half an hour.

The hole was so small that it could only fit into a car.

If three cars were to go in side by side, if they were attacked, the first car would be basically scrapped.

"Lao Jia, you go ahead and take a look." Lei Ming got out of the car and looked at the surrounding cave walls, and then said to Jia Fugui.

Jia Fugui brought some equipment and immediately rushed in.

Jia Fugui's armor is different from others, and the equipment on his feet will be more inclined to speed users.

After waiting for a few minutes, Jia Fugui ran back, "There is only about a 500-meter dead hole, there is no other exit, and there is still some excrement in it, probably the old nest just now." ”

Lei Ming nodded, sat down on the map with the exploration mark and the general situation of this passage, and after a brief measurement by the group, he turned around and headed for another fork in the road.