After putting away the black soil, Li Yan led Tie Dan and Dog Dan to Li Na and Zhao Xuan, wanting to see how they were cleaning up.

Although there are many dwarf mines on this iron mountain, it is actually a large mine cave, and almost the entire mountain has been hollowed out by those dwarves, but the structure of this mountain is very peculiar, and the dwarves have many years of mining experience, and the entire mine is built very strong, so that there is no need to worry about the danger of collapse.

Although Li Na and Zhao Xuan are two women, they have been serving the Carlin family and have always been Zhao Lin's good helpers, so it is naturally not a problem to do this. And those slaves were encouraged by Li Yan to regain their freedom, and everyone was full of energy, so they didn't need to watch at all.

However, when cleaning up the mine, they found that there are not many places that can be used in this mine, and the first few tens of meters of the mine cave is a residential area composed of a vacant land and a stone cave, where those dwarves eat and live, and this place can be used to raise blue-eyed rabbits if they clean up well, but it is not good to go inside, but it is diagonally down in it, and it has been filled with water.

However, just these places cleaned up outside are enough to raise a lot of blue-eyed rabbits, at least tens of thousands of them will not be a problem.

Those dwarves have to live in the mine for many years, so the design of this mine is similar to the general small city, not far from the water source, there are certain drainage facilities, and the place is spacious, close to the cave entrance, although there is water in the mine, but it is still very dry here, it can be said to be the best place to raise blue-eyed rabbits.

Li Yan is also the first time to see the true face of this dwarf Iron Mountain, the whole Iron Mountain is not very high, the altitude is only about a thousand meters, and it stretches for only a few thousand miles, forming a semi-ring, enclosing the Loess Plateau in the middle, and there is only one way to enter and exit the Loess Plateau, which is to go out from the opening of the semi-circular mountain range.

And Li Yan's castle is built on the mountain, part of it is still on the hillside, and the back is the iron mountain, and the dwarf mine cave is halfway up the mountain, and the terrain is not low.

Behind the Iron Mountain, there is a notoriously murderous place on the mainland, known as the Yunmeng Swamp, one of the five forbidden places on the mainland.

The land on this hill was dark brown, and there were weeds growing on the east and west, but they were not growing very well, and they looked like they were about to die, although there were a few trees with crooked necks, and they were also malnourished and polio.

Seeing this, Li Yan couldn't help but sigh, he knew why those big nobles sent him here, and why Zhao Lin scattered all his wealth to buy materials before he came here, this is a dead land, no matter how hard they work in the future, it would be good to be able to get a full bite to eat, if the Carlin family wants to start a new business here, it is tantamount to a fool's dream.

Looking at the busy Zhenghuan mine in the distance, Li Yan walked forward quickly, and soon he arrived at the mine, but Li Na and Zhao Xuan were directing the slaves in the mine, and they didn't notice Li Yan's arrival.

Although this mine cave was built by the dwarf race, the entrance of the cave is very tall, more than three meters high, more than five meters wide, there is a large open space inside, and the large and small caves are secretly spread on the cave wall of the entire space, this is simply a city in the mountains, even if it is inhabited, it can also live tens of thousands of people without a problem.

Li Yan was shocked by the love image in front of him, he really didn't expect that those dwarves could create such a cave city, which was really shocking.

Looking at the inside of the mine, it was all arched with stones, and this is still a mine, and it is obviously an underground base.

Li Yan nodded involuntarily, this place is really good, as long as this place is sorted out well, not only can it be used to raise blue-eared rabbits, but it can also be used as a secret base, but it also takes a time to sort it out, and now they don't have that time to do this.

At this moment, Li Na also saw Li Yan, and hurriedly walked over and said, "Young master, why did you come here, it's very dirty here, you better go back to the castle." ”

Li Yan smiled slightly: "It's okay, just to see what it's like here, Grandma Li Na, how many caves like this are there on this mountain?" ”

Li Na hurriedly said: "There are only two caves of such a large size on the mountain, one on the castle side and the other on the other side of the mountain, the scale there is similar to here, and the rest are small passages, and there are dozens of small passages like that. ”

Li Yan nodded and said, "Are these caves all connected?" How deep is this cave? I want to build a fence here, otherwise there will be no way to catch blue-eyed rabbits here. ”

Li Na looked at it and said: "Young master, don't worry, these caves may be connected, this is the habit of the dwarf clan, but the passage is generally built under this mine, in order to ensure that the mountain will not collapse, they will not dig a horizontal passage outside, but now the cave is full of stagnant water, I don't know how deep it is, so it has become a dead end, and the young master can use it with confidence." ”

Li Yan nodded with a smile and said: "That's good, the cave on the other side of the mountain, we can't take care of it for the time being, but this cave is just right, repair the road leading to here, and block the mine road, although there is water inside, don't worry about the blue-eyed rabbits running, but also to prevent those blue-eyed rabbits from drowning." ”

Li Na nodded and said, "Don't worry, young master, I know what to do, this kind of place is not what young master should come to, you better go back." ”

Li Yan smiled slightly and said, "It's okay, I'm not in a hurry, Grandma Li Na, you're busy, I'll go and see the stored water in the mine to see if the water can be used." ”

Li Na nodded and said, "Then I'll go with you, I'm a water mage, and I still know a lot about water, I believe I can help the young master." ”

Li Yan smiled and said, "Okay, there's nothing to do here anyway, Grandma Li, you don't have to work too hard, just come with me." With that, he walked towards the mine.

Li Na followed behind Li Yan, Tie Dan and Dog Dan followed behind them, but Zhao Xuan didn't move, she still had to stay and watch those slaves.

The four of them quickly entered the mine, which was diagonally downward, but the slope was not large, and it seemed that there were railroad tracks on it, but now the rails had been lifted away, and only brown stone paved ground remained.

After walking down the slope for a few hundred meters, Li Yan saw an underground lake.

This place can only be described as an underground lake, the area here is really too large, and by the light that shoots out of the mine, he can't see how big this water surface is, only the sound of water.

At this moment, a ball of white light suddenly lit up beside Li Yan, Li Yan glanced to the side curiously, and found that Li Na was holding a ball of light in her hand, as if she was holding a lamp in it.

But he immediately understood that this was magic, a kind of magic illumination of the light system, without any ability to attack, defend or heal, its only use was to be used as a lamp, and it was a magic that any magician on the continent, even a magic apprentice, could use, because only illumination magic did not have any attribute restrictions.

Li Yan just glanced at it, then turned his head, and carefully looked at this underground lake with the light of illumination, Li Yan now found that it was not wrong to call this place an underground lake, the area of the water surface here was much larger than that of ordinary underground lakes, and it could be used as far as the eye could see.

And what makes Li Yan feel most embarrassed is that there are several small islands on this lake, but the area of these small islands is not large, only about dozens of square meters, and they are connected to the sky and the ground below, just like pillars.

Li Yan said to Li Na puzzled: "Grandma Li Na, do you know what those pillar-like things are for? ”

Li Na smiled and said: "Young master, I am not mistaken, those are the pillars, the pillars left by the dwarves to support the entire mountain range, the platforms there are command platforms one by one, when the dwarves are working, there will be people standing on them, commanding the people below, the water surface you see here, in fact, has been completely hollowed out, it can be said that this is a lake."

Li Yan's eyes lit up, and then he laughed and said: "Great, this is really good, so that we can raise fish here, raise a lot of fish, this is really a natural treasure trove, hahahaha." ”

Li Na glanced around and said: "The young master's idea is very good, but you have to take a good look here, if it is stagnant water here, there is no way to raise fish at all, but it doesn't seem to be stagnant water here, I feel that the water element here is still very active, but the way of this water has become a problem, if there is river water flowing in, then there must be an outlet, otherwise this water cannot be maintained at this water level all the time, but if this water has an outlet, then no matter how many fish fry we put in, You might run away from that exit. ”

Li Yan nodded and said, "Yes, this is a big problem, and I also found this problem in the moat, it seems that this problem must be solved first." After speaking, he turned to Li Na and said, "Grandma Li Na, you can get some water out, I want to take it back and do some research." ”

Although Li Na didn't know what Li Yan meant, she still responded, and then with a movement of her hand, a water balloon with a diameter of one meter slowly rose from the water surface and stopped in front of Li Yan.

After putting away the water balloon, Li Yan felt it and found that there was no hint in the space, it seemed that the water balloon was really stored in it, Li Yan couldn't help but sigh, this space warehouse is really magical, and even the water balloon can be stored.