Gently touching the sawdust-stained fingers on the chain, the cold touch made Li Youdao frown slightly, "Wow." There was a soft sound, and nothing happened when the fingers made contact with the chains.

"It's finished?" It's a bit incredible, this seemingly unsolvable dead end has been broken like this?

"There are still some problems," staring at the chain in front of him, Li Youdao wiped all the dust off his hands: "This seems to have found a substance that can be isolated from absorption, but this kind of wood chips is as inconvenient as the previous mixture to coat the whole body, and even in terms of the rarity of the material, this kind of wood may be less." ”

"It's a little hard to do!" Even if Li Youdao knew the key point, he couldn't do anything with these materials, the reason was that it was impossible to wrap people in wood, right?

"Maybe it can be used as the main ingredient of the house...... thought of a possibility, but then Li Youdao shook his head again: "Even if it is made into a house, it doesn't make much sense, it can only work when you rest at night, and it can't solve the problem of recovery during the battle, but since you have found the key point, you can take some more back, and brainstorming may be able to find a way." ”

Thinking of this, Li Youdao walked directly to the third floor of the mine, since he knew what substance worked, then the easiest way is to obtain more materials to conduct experiments, although Li Youdao has the advantage of memory, but in the final analysis, he is not a professional, so it is more feasible to analyze and study after looking for materials.

Applying the stealth technique to himself, Li Youdao directly opened his speed at full speed, shuttling through the three-layer mine, the entire three-layer is divided into three branches, if it is the first time to come here, it is estimated that it will be difficult to choose.

But Li Youdao, who knows the terrain well, did not have such concerns, but directly chose the one on the far right.

The figure is flickering, and the eyes are gloomy, because the zombies on the third floor have just been cleaned up before, so the third floor at this time is relatively quiet, just some new zombies that wander over or occasionally emerge from the ground.

Most of the time it's a little empty: "It's here." Looking at the moment of Mithril Tree in front of him, Li Youdao walked forward for a distance and stopped in a relatively open place.

There are several entrances to the Corpse King Palace, but the only one suitable for humans to drill into is this place under his feet, thanks to the mutant zombies, if they don't dig everywhere, Li Youdao really has no way to enter the Corpse King Palace.

Opening the first class and focusing the beam into a line, Li Youdao took a closer look at the cave, there are often mutant zombies hidden in it, probably because this cave is too wide, some mutant zombies use this cave as a habitat.

After taking a few stones and throwing them into the cave, Li Youdao squatted aside and listened carefully.

"Roar!" Sure enough, when the stone was thrown into the cave, a roar of rage came out, followed by a bald face and a dark green tongue.

"Pounce!" Li Youdao, who had been prepared for a long time on the side, naturally would not be frightened by this scene, and stabbed out the demon in his hand, and completely turned him into a cloud of blood mist before the other party could leak half of his body.

It's just that after this roar, he came up with several roars one after another: "Oh? More than one? ”

A little unexpectedly, although this situation is not much, but it happens occasionally, the demon subjugation flashed, killing the zombies who tried to rush out of the cave, and the whole mine finally fell silent again.

A few more stones were thrown down, and this time there was no sound except the echo of the impact of the stones.

"It should be fine." He carefully illuminated the inside with a searchlight, and after finding that there was still no movement, Li Youdao supported his arms and went down to the bottom of the cave little by little.

The whole tunnel is not very long, but it is too winding. Even if it was forcibly expanded by the huge body of the Corpse King, it still required some climbing skills.

Feeling that he was about to approach the Corpse King Palace, Li Youdao turned off the headlamp on his head, in fact, Li Youdao no longer needed such lighting equipment, but just now in order to attract zombies with light, he turned it on, and at this time, he was about to approach the Corpse King Palace, so it was naturally closed.

Although the entrance is narrow, the exit is wide, which may be due to the fact that there is no ore near the Corpse King's Palace, and although the soil is still relatively hard, it does not need to be so harsh in terms of excavation range.

Listening to the sounds nearby, although Li Youdao is not afraid of the corpse king, once it is found in the corpse king hall, it is not a good thing, and Li Youdao is not sure if there is a mutated corpse king in it.

If there is a corpse king of the comprehension realm, I am afraid that my stealth technique will lose its effect.

After a while, he didn't hear any sound, and Li Youdao entered the corpse king hall little by little.

What caught the eye was an extremely tall and wide area, and the entire Corpse King Hall covered an extremely vast area, and in terms of a single round area, it was not even smaller than the third-layer mine cave.

It's just that compared to the winding fork in the third level of the mine, the terrain here is extremely simple, a large square clearing.

There is nothing in the middle, and there are no veins in the surrounding stone walls, all of which are made of earth and stone, which looks monotonous and gloomy.

On the surrounding stone walls, there are densely packed corpse kings, each of them with trapped hands, some of them looking motionless, and some of them subconsciously swinging their arms, as if they are struggling.

In the middle, you can occasionally see some corpse kings who have broken free from their shackles wandering around, these corpse kings have no more consciousness to speak of, and when they are not in a state of battle, they are actually no different from wooden stakes.

Therefore, those corpse kings who occasionally drill out are purely lucky, which is also a reason why there are very few second- and third-layer corpse kings, and most of the corpse kings who break free are wandering around here.

Looking at the situation of the Corpse King Palace, Li Youdao had been here several times in his previous life, but for some reason, he didn't pay too much attention to this place, at this time he came to the side of the cave wall and compared the sawdust in his hand with the wooden bars on these walls.

"Well, it should be a substance, what kind of wood is this?" Taking advantage of the fact that there was no corpse king around, Li Youdao gently broke a small piece of wood and put it in his hand to look at it carefully.

This slight noise did not attract the attention of the Corpse King here, because the entire Corpse King's Hall was filled with the sound of chains rattling, which was nothing compared to this sound.

"The wood is very tight, there is no obvious smell, which should be similar to some wood from the outside world, maybe it can be found in the forest." took a few more pieces of wood, and Li Youdao tried to do it as slightly as possible in this process, but fortunately, these woods were already a little damaged by other corpse kings, which saved Li Youdao a lot of things.