Not to mention how the wise rat man responded, Rob, who had returned home with a full load, returned to the laboratory where he had been away for more than a month.

For Rob, this place is his laboratory, a place where the structures are made and tools are placed, so he habitually called it a laboratory, regardless of how big it is.

However, the villagers of Tiedun Village, as well as the wise rat people such as Zhizhigu, disagree with this name. This place is where they live now and there must be a formal name. So without Luo Bu's participation, the villagers of Tiedun Village and the wise rat people such as Zhizhigu discussed a formal name - Tiejianbao.

As soon as I heard this name, I knew that the rat people such as Zhizhigu did not play any role in the naming activity, or the name they came up with was rejected. Thinking about it, it would be strange if the rat people who were still in the primitive stage of "Zhizhi" and "Gugu" could come up with a good name.

Finally, the name Tiejian Fort was reported to Rob.

Rob had no objection to this and agreed casually, but he still used to calling it a laboratory in private.

Tiejian Fort has changed a lot now. The villagers of Tiele and Tieun Village have gone in and out several times, purchased a large amount of building materials, and transported them all in. The stone can be used locally, and the rest of the caves except the main cave are built into rooms layer by layer, corresponding to the stairs.

There are a lot of rooms like this. Only two caves can be rebuilt, and the villagers of Tiedun Village can be filled with all the Rat Man and Tiedun Village. If all the caves are changed to this shape, there will be absolutely no problem for tens of thousands of people to live in. If the main cave is also rebuilt, 50,000 people can live in it. Of course, it requires a lot of building materials. The current building materials are just enough to renovate two small caves.

All the places that need to be leveled are flat, and the ditches for domestic drainage have also been dug and formed. The entire Tiejian Fort gradually becomes more like a fully functional underground city. It is like the black iron underneath, but not as dirty and messy as the black iron underneath.

Back at Tiejian Fort, Rob hid directly into the laboratory.

Thirty-six soul hearts are a huge fortune. If I hadn't discovered the treasure of soul energy like the Rat Man's Ancestral Tomb, I really don't know when I would have gathered so much soul energy.

With these soul hearts, many of Rob's ideas can be realized.

The first thing is naturally to replace the soul of Lenggang War God. Now the soul strength of Lenggang War God is only level 6, and it cannot exert all the strength of Lenggang War God.

After taking apart Leng Gang War God's breastplate, taking off several cushioning springs, I finally saw the soul core hanging in my chest.

I have to say that Leng Gang's God of War is very precise in manufacturing, and it takes a lot of time to dismantle and manufacture each time. This is also the reason why Luo Bu was replaced directly when he was not in the Rat Man's ancestor tomb.

After changing the soul and assembling it, Rob immediately switched his thoughts to a new soul.

The pressure is also pressed from all directions, but the pressure is obviously much smaller than before, and the new soul's ability to withstand pressure is much higher.

With all the spirits condensed, Rob sensed the body, and the energy extended, constantly touching various parts. In a short while, he saw Leng Gang's body thoroughly.

During this introspection, Rob felt that his thoughts easily penetrated various parts, without any obstacles, which was completely different from before replacing a new soul. Could it be because of the increase in the strength of the soul?

Rob tentatively extended his soul outward, verifying what this change is in the extreme state.

Rob's own soul also reached the strength of the soul heart. When he extended his soul, the perception range was within three kilometers of Fangyuan. However, if it was a strata that penetrated the rock, two meters was his limit. In other words, Rob's soul extension could see through about two meters of rock formation.

But after moving the body of Lenggang War God, and then extending his soul from there, Rob felt that the soul extending easily penetrated the walls of the laboratory.

The laboratory is not a kind of residence with fixed wall thickness. Its separation from other caves is naturally formed, with different thicknesses and the thinnest part is about three meters. Rob easily penetrates through it, which is far beyond his limit when he was in the body.

Before I could finish walking out of the laboratory, my mind continued to extend and easily passed through the outer wall of Tiejian Fort.

Rob's soul jumped wildly. He realized that he had discovered a new ability of Leng Gang War God, which was the powerful soul extension and penetration ability. You should know that the thinnest part of the outer wall of the Tiejian Castle is also thirty meters thick, fifteen times that of Rob's soul penetration limit, and it did not seem to reach the limit.

Rob continued to extend his soul and penetrated the rock formations. After his thoughts extended for a kilometers or two underground, he finally found that what he felt began to blur and finally reached his limit.

However, this distance has already made Rob very satisfied. The rock layer that needs to be penetrated is about 150 meters thick in one or two kilometers. In other words, with the help of the increase of Lenggang War God, Rob can see through the rock layer of 150 meters and see what is behind the rock. This perspective ability is really too powerful.

If it were in a city, how many walls would add up to 150 meters? Rob could see through the entire block at a glance.

This penetration ability makes it easy to check the nearby terrain. If you sweep around, you can know whether Tiejian Fort is on the left and right, and there are rocks or holes behind it.

After his careful investigation, except for the rock wall on the front, the thickness of the rock wall is about 30 meters, the rest of the four sides are dense rock layers at a distance of 150 meters. The second thinner one is on the top. The distance from the highest point of the main hole to the ground is only fifty or sixty meters thick. Rob's intention can easily penetrate the rock layer and see the situation on the ground.

I haven't been to the ground for a long time. When I was about to observe the situation on the ground carefully, the huge pressure suddenly quickly applied to his mind, getting bigger and bigger. Finally, I forced my mind out of Leng Gang's God of War.
Chapter completed!