"I don't know if there is an iron mother in this secret room, the black door just now, the main material should be the iron mother in this iron mine" Li Zimu thought for a while and said, he always felt that the iron door was a little familiar before, but now he knew that this was an iron mine, and he instantly understood it.

Such a large piece of iron mother is used to repair the door, I have to say that this hand is also too big, you must know that the iron mother is much more precious than iron ore, and the main material of his Zhan Lu sword is also the iron mother, but it is only a small piece.

is also the Iron Mother, but if Li Zimu is asked to make a choice, he still chooses the Zhan Lu Sword, because the latter has more and more precious materials in addition to the Iron Mother, not to mention that it is still from the hands of Ou Yezi, and the value is definitely much more precious than this machine gate.

Fortunately, Li Zimu didn't choose to use a butane spray gun to forcibly burn it just now, otherwise it would have been useless, because the melting point of the iron mother is much higher than that of iron ore, and the spray gun can only reach the melting point of iron......

However, as soon as he thought that there might be an iron mother in this secret room, Li Zimu became interested, because that thing is an excellent main material for casting swords, and if he really finds the three swords of chasing stars, running to the moon and chasing the sun, he will have to dissolve them and cast them into Tai'a swords, so he will also need to use some iron mothers at that time, and if there is here, he doesn't need to take it from his own warehouse.

The three of them walked along the path and walked inside, these sculptures carved out of stone looked fresh at first, but after a long time, they became aesthetically tired, and several people couldn't help but speed up their pace.

"This handiwork...... It's too big!" Chi Ling raised his head and looked at the scene in front of him and exclaimed, Zhang Jingyang was also not much better, he had also fought several times with his elders, and he had never seen this kind of battle underground.

Only Li Zimu didn't show any expression on his face after looking at it. Of course, this is also the reason why he is well-informed, if his vision is the same as these two, maybe he should be amazed at this time.

At the end of the stone path, a long stone staircase was built, and below the stone steps was a platform the size of a basketball court, and behind the platform stood a palace-like building.

No one thought that there was a palace hidden in this little-known Wushan! a huge palace that was not much different from the palace outside!

"Let's rest for a while, it's already here," Li Zimu said as he sat on the top stone steps, looking at the time on his wrist, it was only two o'clock, he was not in a hurry at all, he sat down and let the two of them marvel, and he took out a cigarette and sat quietly on the light of it.

"If this is known by those brick beasts outside, maybe they will run over like crazy again to do research" Chi Ling sat beside him and said in surprise, usually seeing the palace outside is nothing to be curious about, but now seeing this underground palace gives her another feeling.

"It should be allowed to sleep underground, but it is no good to expose it," Li Zimu said lightly, what if he saw the light of day again? It was nothing more than shocking the whole country, and then it was to engage in research, and after moving everything, it was set up as a scenic spot to sell tickets for visiting, and he had seen a lot of this kind of thing, and there was no way except to scoff at it.

"Let's go down, shall we?" said after waiting for Li Zimu to finish smoking, she was already a little impatient, as the first batch of descendants to discover this place, the curiosity in her heart had already exploded, but if Li Zimu didn't leave, she wouldn't dare to go down alone.

"Let's go......" Li Zimu shook his head and said, stood up and walked to the bottom of the stone steps, this stone step is very wide, a stone fence was built in the middle to divide the entire stone step into two parts, and the slope inside the stone fence is carved with a stone dragon more than ten meters long!

The stone dragon plate in the middle gave people a lifelike feeling, and the spirit walked down the stone fence while admiring, and after a while, he walked to the bottom of the stone platform.

The stone platform the size of the basketball court is surrounded by four rows of stone carved soldiers, enclosing the entire stone platform in the middle, and there are two rows of iron shelves dedicated to weapons on the field, on which there are many weapons, spears are the majority, and there are some iron eyebrow sticks, giving people the feeling that this is a martial arts training ground.

After the three of them circled around the stone platform, they finally came to the bottom of the palace, where there were also stone steps, but only a few steps, and they walked two steps to the entrance of the palace.

There are two bronze tripods at the door, which are even larger than the last time I saw them in the tomb of Longhe, each of which weighs a thousand kilograms, and I don't know where these people have the enthusiasm to move such a heavy thing in......

"Isn't there air in this chamber, why does this building look old, but it's still so sturdy?" the spirit asked suspiciously, it stands to reason that these things should rot after two thousand years, but why is this underground palace still intact?

"Do you see these yellow-brown powders around this palace? These powders have the effect of insecticide, so that those ants and other small insects can't get into this range," Zhang Jingyang smiled and explained, he still knows a little about this, and its properties are similar to insecticides.

"Not only these, can you touch this pillar and see how it feels?" Li Zimu shook his head and said, these insect-proof powders alone are not enough, although they have some effects, but they will not work well after a long time, so they also need some more powerful protection methods.

"Slippery, it doesn't feel like wood to the touch, but plastic?" said in surprise as he gently stroked the big pillar used to support it, and took a closer look with a flashlight, in addition to the outer layer of lacquer, there was also a layer of transparent material about half a centimeter thick, which tightly wrapped the entire pillar.

"In addition to being used for decoration, paint also has the effect of increasing the strength and longevity of items, and this transparent substance on the outside is also extracted from the tree and then mixed with other things, similar to amber, you should know this, right?" Li Zimu said with the corners of his mouth slightly raised.

Amber is a good thing, a small fly has not decayed after being wrapped in it for thousands of years, and its parts can be clearly seen, which shows how strong its antiseptic effect is, and this thing can be seen everywhere, and it is not very precious.

"So the whole palace is a large amber craft?" said in amazement, Li Zimu's explanation once again refreshed her world view, amber crafts are not unusual, but such a big one, there shouldn't be a second one......

"Let's go, go in and have a look" Li Zimu nodded and said, raised his feet and crossed the threshold directly into the palace gate, the name of this palace is on the plaque above their heads, the three big golden Chu seals look very powerful and domineering, and the name of this palace is named after Xiang Yu's title.

Overlord Palace!