With this group of hard-working miners, it would be easy for Poor Dao to find the castle of the dead. I first followed the team of mine trucks, walked for a long time, about dozens of miles, and came to a large smelter, where the scene was even more spectacular, and the iron furnaces about four or five meters tall were in full swing.

These blast furnaces are very peculiar in shape, looking like an oval egg, with a mouth for feeding and tapping molten steel in the middle, and a square base made of special materials below. There were four exits on the four sides of the base, and the four fire-type skeleton mages were desperately trying to heat the blast furnace with the hell fire they had worked so hard to cultivate. There were also a dozen skeleton mages around them who were meditating, apparently recovering their magic.

In addition to them, there was a particularly short skeleton standing at the base of the iron furnace, closely watching the situation in the blast furnace, as if he was a technician, and all the mages below were under his command. The reason for this conclusion is that at this moment, I saw that the molten iron in a furnace was just boiling to the fire, and the short skeleton in charge jumped off the base and began to direct the skeleton mages to produce iron.

He first stopped the heated mages and told them to meditate, and then instructed the other mages to use the levitation technique to float the furnace up, turn it on its side, and pour the molten iron into a pre-prepared mold from the outlet of the molten iron. The mold was just made of sand, and it was crude, and it was roughly in the shape of a long strip.

After the molten steel is poured. After the furnace was cleaned of some slag, it was put back. Then several carts full of ore came over, and the mage continued to use the levitation technique to float the ore in the carts and send them into the furnace. At this time, four other mages were already standing at the exit of the pedestal. So the iron-making work continued.

The whole process was very skillful and smooth, and it took less than half an hour to complete it completely. Obviously, they have been cooperating for a long time to have such a tacit understanding. Poor Dao roughly estimated that this furnace of molten iron is about 1,000 catties, to say the least. There are about dozens of these blast furnaces here. The high efficiency, the large quantities, and the fact that they work around the clock mean that their yields must be quite impressive.

And the most surprising thing is that those skeleton mages can insist on practicing a furnace of iron before resting, are they still skeleton mages? You must know that they have always been known for their weak magic power. Even many mages say that they have tarnished their reputations, and if they hadn't been able to fire two Hellfire Bullets, no one would have taken them as a dish.

Legend has it that the average magic level of these guys is also a magic apprentice, and the smarter ones can reach the level of a junior mage. This is already a rarity. And what is the level of mana of a junior mage? If you die, you can throw dozens of head-sized fireballs.

And if you want to practice a furnace of steel, my most conservative estimate is that you need the magic power of a high-level mage or above, or even a magician. The skeleton mage can reach this level, and there is not a single one out of ten thousand. But there are dozens of blast furnaces here. Skeletons around. There are thousands of mages, which means that there can be thousands of such high-level mages in just this one place! What kind of concept is this?

Besides, within a radius of thousands of miles, there must not be only one such subway for refining ore, right? If you count them all, then how many such mages must be there? Anyway, at least tens of thousands of memorizations, where did they all come from? Poor Dao's eyes were on fire, if these mages were gathered, how terrible would it be? So Huh, Poor Dao's interest in the master here has increased again, I really can't wait to meet this guy. He's so talented.

This is the place where the rough iron embryos are produced, and after the iron embryos have cooled, there are naturally skeletons to collect them and transport them to other places. Poor Road then followed the long queue of transport vehicles and followed them again. This time it was a long road, hundreds of miles, before I came to their next processing site.

On the road, from time to time, minecarts from other directions joined, and the carts were also full of rough iron embryos. This proves my suspicion that there are similar iron-making sites elsewhere. Moreover, judging by the number of minecarts added, it seems that there are really not a few such mines.

Just by looking at what I've seen along the way, I really admire the man who invented the skull mining method. The cost of these skeletons is simply too cheap and too cost-effective. Hundreds of miles of road, such a heavy thing, if you rely on people to transport, not only with livestock, but also need to manage food, shelter, and wages. And the efficiency is also low, this more than 100 miles of human beings have to walk for several days, and they have to rest and sleep at night.

But skeletons are different, and under the shroud of the canopy of death, the energy they consume can be quickly replenished. So I don't know how tired I am to work, and I don't have to match animals, just add a few more skeletons, anyway, there are many of them. And there is no need to pay salaries, take care of food and housing. They arrived in a day and a half on the road of more than 100 miles, because they walked all the way down, and they didn't have to waste any time to rest. So, they can be called the best workforce in the world.

While sighing at the super cost performance of the skeleton, Poor Dao began to look at the newly emerged workshop in front of him. The area here can be greatly stretched, occupying a radius of dozens of miles. There were busy skeletons everywhere, and they were working in the field, never repairing the house, as if they weren't worried about the rain.

The periphery here is still an iron furnace, but this time it is a refining furnace, and the shape is similar to what I saw at the beginning, that is, the four fire-burning mages, and their strength is obviously a notch higher. They put the raw iron in it and smelt it again into fine iron, and cast the fine iron into the raw blanks of various shapes. There are armor, there are weapons, and there are other strange parts, but I don't know much about them.

What caught my attention was that the armor of these weapons was very large, especially the armor was extremely thick, in my estimation, the height of the person using it must be at least about four meters, and the strength would be about 10,000 catties to be able to wield such a large weapon easily. I really can't imagine where to find these giants? Even if there is an occasional little, it must be limited, but according to the current production method, hehe, the number of armor weapons is definitely tens of thousands.

These things are cast as mere blanks, which are then sent to the back for finishing. Look at the horde of skeletons. It was so difficult to grind, frustrate, and so on around those huge battle equipment, and it was too difficult to process those huge blanks with frustration and grinding with the power of skeletons, even if they could keep working without eating or drinking, it would take several months to get one piece right.

A large part of the reason why this area is so large is that they are so slow that there are skeletons grinding their weapons everywhere. The screeching sound endures, staggered, and can be heard far away. Poor Dao is like this, before you see it, you hear its voice first.

After a casual tour of the place for a while, I noticed an interesting thing, here, the technicians in charge of the command are also very short skeletons. They never work, they only command. Obviously, they are all people with high intelligence and autonomy, and I have seen them stop and seem to be communicating with each other with their spiritual powers.

Poor Dao then began to guess their identities based on this, judging from their short stature, they are not dwarves, goblins are sandmen and other dwarf subhumans, but among the dwarf subhumans, there are only goblins and dwarves who are good at casting. I carefully observed their bones. The bones are very small, and they don't look like they have strength at all, so it's clear that they are not strong dwarves.

Thinking of this, Poor Dao immediately concluded that the identities of these guys were definitely a group of goblin undead. And after judging that they were goblins, it suddenly reminded Poor Dao of something. I remember the first time I met the Dead Princess, Fnia, on the outskirts of the Elven Forest, in search of the lost city of Atlan, the capital of the Goblin Kingdom.

Over the years, there have been a lot of poor living goblins, but this is the first time that undead goblins have been discovered. The goblin race gives the impression that they believe only in machines and do not believe in gods. As a result, they rarely practice magic, so that their mental power is generally very low, so their chances of automatically becoming undead are simply negligible.

Of course, it's not the same if there is a necromancer to help, they can also become skeleton soldiers. However, their short stature is really not suitable for hard work, whether it is fighting or moving things, they basically belong to the waste wood clan, so almost no necromancer will stupidly summon goblin skeletons, it is simply a waste of magic power.

However, a large number of goblin skeletons have strangely appeared here, and it seems that each of them has preserved the memories of his life, and can also be responsible for commanding, obviously the upper class here. So it immediately reminded me of the vanished royal city of the goblins. Could it be that the people inside have all turned into undead, and then excavated all the way and built the current castle of the undead?

Poor Dao thought that this possibility was quite big, and I heard that there were several human powerhouses who were buried together at that time, in addition to goblins, there must be mages among them, and it is difficult to guarantee that the mages inside are in a desperate moment of crisis, and urgently turn themselves into necromancers. As long as there is one of them, then everything will be easy to say in the future. The soul in the enclosed space can't get out, so it's not up to him?

Thinking of this, Poor Dao strengthened his judgment. However, this is only speculation after all, and it needs to be proven by facts, so Poor Road can't wait to find the passage from here to the next location, follow a group of skeletons that deliver the finished product, and continue to approach the castle of the dead. Quack, the legendary lost city, I'll pull it!