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"My lord, are we really going to do this?" In the testing ground of Rollin's territory, Kao looked at the drawings in his hand, and his hands trembled slightly.

"Of course. Li Yunfei smiled slightly, and said as he looked at the test field that had been expanded again in front of him, at least the size of ten football fields.

At this time, there were ten giant warehouses under construction at the same time, and he had already opened up five more test sites of the same area.

"But my lord, ten blast furnaces is not a small number, and a lot of materials are needed, and the wind alchemy items alone add up to tens of thousands of gold coins......," Kao said worriedly. has been with Li Yunfei for so long, and he also has a certain understanding of his family's financial resources.

Although the Earldom of Rollin is not a rich territory, it is also somewhat productive and quite rich. But even if you have money, you can't afford to spend it like this.

Li Yunfei said indifferently: "You don't need to worry about the gold coins, as long as these blast furnaces are built on time." Also, how did you study the baking soda powder that I told you before?"

Seeing Li Yunfei's appearance as a local tyrant, Kao instantly understood that his master was going to send it!

Thinking that those novel ideas could be studied in the future, Kao couldn't help but get excited in his heart, and immediately said: "Lord Hui, since you said it last time, I have been researching little by little, and now I have preliminary results, and I have made edible baking soda ......."

Hearing this, Li Yunfei's eyes couldn't help but light up, this Kao is really a talent! Although he had already told him the complete production process, he had really done it under the humble conditions of this world. If it was in the world of the previous life, he would definitely be a highly executed scientific researcher.

Kao paused, then said cautiously, "But...... The cost is a bit high, after all, we can't form a large-scale production ...... A spoonful of baking soda costs about fifty silver coins, which is the cost of half a gold coin......"

Li Yunfei waved his hand and said, "I'll go to Uncle George to get 10,000 gold coins later, which will be used exclusively for the production of baking soda, if it's not enough, I'll ask for it again." ”

It doesn't matter if the cost is high, if it can be produced on a large scale, the cost can be reduced. And his current positioning of this soda drink is not an ordinary person, but an upper-class aristocrat.

I believe that those aristocrats who live extravagantly and are drunk and dreaming of death will not be able to resist this novel drink at all. One and a half gold coins are nothing to them at all, and face is the most important thing.

What's more, Li Yunfei hasn't drunk a sparkling drink for a long time, so he also misses it very much.

"Yes, sir. However, these things take time, and it may not be possible to give you a satisfactory answer in a short period of time. Kao bowed, apologetically. The current conditions could be said to be beyond his dreams before, and under such good conditions, he was not able to meet the needs of the Earl at once, which made him a little ashamed.

"It's okay," Li Yunfei said with a smile, "I'll give you enough time and money, you can get it out at any time, and besides, you can pay attention to these craftsmen yourself, and find malleable talents, which can be promoted and trained." ”

This soda drink was originally an idea he came up with at random, and it was nothing if it could be achieved or not.

Now for Li Yunfei, what is most lacking is talent in this area. If you can discover some new talent through Kao, it is definitely more important than the success of the experiment.

Although the gold coins and materials of the Principality of Waldo have not yet been delivered, Li Yunfei can't wait to expand his test site. Fortunately, in the previous family secret room, there were still tens of thousands of gold coins in the collection, which was enough to last until the payment arrived.

And the expansion of the site by his own earl and the recruitment of workers again is an excellent opportunity for the people of the Rollin Territory. Everyone knows that the Earl never treats his subordinates badly, even if he is an ordinary craftsman, it is much better than farming.

For a while, even many craftsmen from other aristocratic territories flocked to Honghe Town to sign up for this recruitment.

Of course, Martin and the others naturally raised the recruitment threshold a lot again, and strictly checked the identities of all craftsmen, so as not to have some ill-intentioned people mixed in.

At this time, it can be regarded as a big business, and these things naturally don't need to be asked by Li Yunfei personally.

After arranging the affairs of the test site, he immediately turned over and got on his horse, without any entourage, and came to the Bone City alone.

Li Yunfei had already made up his mind to travel in the wilderness, so he had to be fully prepared before setting off. This time I came to Bone City for exactly that.

The city of bones is still as bustling as ever, full of people coming and going. Except for a few tens of percent more patrol soldiers, it was no different from before.

The central city of Roland is home to hundreds of thousands of people, but it does not seem crowded at all, and it has to be said that it is due to the rule of the Grand Duke of Roland.

Wearing a yellow robe with a wide hood, Li Yunfei shuttled through the crowd for a while, and after a while, he had quietly come to a deserted street.

The street is extremely wide, but there are very few pedestrians, and most of them wear various colored robes and large hoods, which looks mysterious and mysterious.

Aside from a few low-rise bungalows, the most striking feature of the street is a huge black tower at the end.

The tower is circular in shape, almost 70 meters high, and without a high spire, it would almost be a towering building. In the entire city of bones, apart from a few watchtowers, this tower is the tallest building.

It is no exaggeration to say that this tower is even the tallest building in the entire Roland Megacity.

On top of this tower, there is also a striking symbol of the cross between the staff and lightning, which is the symbol of the unified organization of all magicians and the magic guild in the entire Roland Giant City!

This is the headquarters of the Roland City Magic Guild, the Roland Mage Tower!

Li Yunfei dismounted on the street, casually tied the horse to the side of the road, lifted his hood, and walked towards the tower.

Contrary to Li Yunfei's imagination, there was not a single guard at the entrance of this tower, and from time to time there would be a variety of people wearing robes coming in and out of it. Some of these people were magicians in earthy yellow robes, and most of them were young men in white robes.

When the white-robed magicians encountered the magicians in earth-colored and yellow robes, they all immediately bowed their heads respectfully before daring to leave.

Seeing Li Yunfei in a yellow robe appear, many people showed a look of surprise, and seemed to be a little unbelievable about Li Yunfei's age.

It was just that the white-robed ones were still respectfully saluting Li Yunfei.

Li Yunfei smiled, nodded frequently and returned the salute, as if he had returned to his own home, and strode in.

After entering the mage tower of this magic guild, he found that the space inside was even bigger than what looked outside, and it seemed that some kind of space magic was used.

On the wall around the Mage's Tower, there is a spiral staircase that continues upwards and seems to reach the top. And on each floor, there are a large number of rooms.

At the bottom, there is more of a white-robed person who is busy, and gradually going up, you can vaguely see some robes of other colors. It's just that I can't really see it, and obviously there are some magic barriers in it.

Looking carefully at the wall next to him, he saw that some seemingly random patterns on the wall seemed to be distributed according to a specific law, faintly containing huge energy.

This magic guild really has some doorways!

Li Yunfei nodded secretly.

At this moment, a shrill voice suddenly came from his side: "Where are you from, kid? How dare you pretend to be a quicksand mage!Who is your teacher!?"

Li Yunfei turned his head to look, and saw a man who was nearly thirty years old, with a mustache on his chin, and also wearing a yellow robe, who didn't know when he appeared beside him, and was looking at him with contempt.

Li Yunfei smiled slightly and said, "I don't have a teacher, only an old friend, I heard that he is in this mage tower, I came to find him today." ”