Compared with the previous porcelain refining, the communication with the blacksmith Martin is much simpler, after all, the way of making iron and steel is basically the same, nothing more than the difference in process temperature. And there is no need for Martin to worry about the workouts, which will be left to the hydraulic machinery of the future.

It's just that unlike building a porcelain kiln, this time there is no way to build an iron-making blast furnace in the city, because the biggest drawback of hydraulic equipment is that it is subject to natural influences. In particular, large blowers and hydraulic hammer forging machines require strong water impact, and Storm Castle does not have the ability to build artificial canals for the time being, and the only one that meets this is the banks of the Seine.

If it was the winter of the past, not to mention the construction of large projects outside the city, it would be very dangerous to even go out of the city. But this time, he repelled the Ice Demon's tentative attack, and also severely damaged the Ice Demon. What's more important is that with Gandalf, the archmage, in charge, it is not surprising that the ice demons will not dare to attack again this winter, and it is indeed as Duke thought, there is no shadow of the ice demons on the periphery of the monster valley, as if they have all disappeared.

However, in order to ensure safety, almost half of the Storm Legion's troops have been deployed outside the city to defend. The Storm Troopers, in particular, have already pulled the cordon patrol line to the edge of the Monster Valley. It was only after the previous group of knights could not accept training with ordinary soldiers that they withdrew, and now the Storm Troopers were only one hundred and twenty men, and they could only be used as sentry scouts.

But when the cavalry is the most deterrent, it is actually the charge of the large army, once the war horse is run, it is the heavy tank of this era, so how can Duke find a way to expand the cavalry legion, at least to reach the number of thousands, otherwise he can't even beat the mountain city, how can he fight against the super cavalry regiment of the empire or the Holy See?

On the other hand, Bruno's progress is also very smooth, the interlocking transmissions have almost been assembled, taking this opportunity Duke to give Bruno the design of the crank, as long as it is combined with the existing waterwheel, then the hydraulic equipment that surpasses this era will be born.

However, if you want to officially put it into production, it should take ten days and a half months, and there is no hurry to wait for Duke. You must know that the gradual exploration and development of the Middle Ages for hundreds of years has been broken through by yourself in just ten days and half a month, although it is standing on the shoulders of giants, but it is also amazingly efficient, and people still have to learn to be satisfied.

Duke stood by the river, watching the workers build the blast furnace in full swing, and there was an indescribable sense of accomplishment in his heart. After all, this is a change created step by step by relying on one's own efforts, and it is also a change that transcends the entire era.

"Little Duke, what are you doing here?"

The sudden female voice in his ears shattered Duke's reverie, and there was only one Storm Castle that could call him that, and that was Hera.

"Why are you here?" Duke quickly turned around and asked in surprise, when did this woman come with her?

"Because I'm curious about what you're doing, is this about ironmaking, I can't see that you still have this talent. ”

"Ironmaking, you're too backward, I'm steelmaking, and soon the best quality steel in the whole of Europa will be produced here!"

When he said this, Duke had an unconcealed pride on his face, and what he was doing was worthy of pride.

"Better than the Dwarven Master's steel?" Hera asked curiously.

Dwarven Master?Duke was subconsciously stunned when he heard this title, this was the second time he had heard something from other races, could it be that like the previous goblin technology, the dwarf master of this world had already developed blast furnace steelmaking?

It seems that I really have to learn about the technology of other races in this world, and maybe I can avoid a lot of detours. After all, Duke is not omnipotent, and being able to transform these things is already squeezing his potential.

"It's only a matter of comparison to know. Although Duke didn't know how the dwarven master made steel, he was very confident in the steel he was about to play, so he answered with confidence.

Seeing that Duke was so interested, Hera also nodded with interest and set her eyes on the construction site by the river.

The two of them stood in the cold wind by the river for a while, and then they saw Hera clasp her hands on her chest and say, "It's so cold, sister, I'm going back to the castle, are you with little Duke?"

When Duke heard this name, Duke always felt a strange feeling. Because I learned from Gandalf's small talk. After cultivating magic and fighting spirit in this world, the lifespan will be greatly extended, and Gandalf looks like he is in his forties, but he is actually seventy or eighty years old. However, as an archmagister, it is possible to live up to three hundred years, and Gandalf can still be called young.

In other words, although Hera looks like a thirty-year-old royal sister, with the strength of the big witch, even if she is a little younger than Gandalf, her age is estimated to be sixty or seventy years old, you can be my grandmother on the earth, and you are embarrassed to call yourself a sister?

Of course, this is just Duke's inner muttering, he knows that no matter what the world, age is a forbidden area for women. And Gandalf has repeatedly emphasized that Hera is a crazy woman, if she really makes her grandmother angry, and there is no magic contract constraints, she will be killed at that time, thanks to it, you still have to endure it when you should endure it!

The two of them walked side by side in the snow, which made many workers curious about this scene, this woman who suddenly appeared very close to the lord, could it be the future lord's wife? But this is a matter between nobles, and ordinary workers gossip in their hearts at most, and no one dares to ask anything.

"Tell me, what is the purpose of your visit to Stormcastle?"

Halfway through, Duke suddenly said something like this, which made Hera, who was originally curious and watching the scenery, stunned for a moment.

However, she quickly returned to normal, and just smiled and said, "There is no purpose, just curious about Storm Castle, so I came over to have a look." ”

"Hera, we don't speak secret words, and you don't believe what you say. ”

After hearing this, Hera turned her head, looked at Duke with a charming look, and even put her hand on his shoulder and said: "Little Duke, I'm really curious why you have changed so much, and you are even about to catch up with your genius brother that day, you must know that your reputation in the imperial capital is not very good." But since you've asked so, I'll have to tell you. ”

"I came to Stormcastle this time to do you a favor, and I guess you have to thank me for your success. ”

Help?Do you control the magic array?But even Gandalf doesn't want to do this, is Hera willing to do boring things?

"How can you help?"

"Help you take the position of Duke of Otto. ”