"King Yuyan, the old minister has already made preparations, in addition to the necessary disaster food, if you want to obtain cattle, sheep and other livestock, you must pay corresponding labor. ”

Du Ruhui nodded back.

"That's good, Old Du, you wait to report the grain and salt we need in Quanyang, three months. ”

"Yes, King Yan. ”

After Leng Yan told some more things, he entered the back hall.

There are still many problems he has to face, and there is a severe drought in Quanyang County, and this problem must be solved.

Because the exchange of silver is less, and there is no silver mine in Quanyang, silver has become a non-renewable resource, and it has to be circulated in Quanyang County, so it is best to exchange it for food.

When he arrived at the back hall, Leng Yan had been thinking about how to solve the problem of the drought.

These two words just flashed, and they were completely vetoed by Leng Yan, and superstitious practices can't be eaten here in Da Zhou.

Where do I get my water?

Suddenly, there was a flash of cold fire, isn't there a Shiyang River in Quanyang County?

As long as you try to attract the river idea, won't you get it?

But thinking about it, a new problem appeared in front of Leng Yan again,

The dark river seemed to be embedded in a whole boulder, how difficult it was to dig out a road, and the Shiyang River was much more groundless than the two banks, and it took a lot of effort to get the water to the shore.

Well?

Suddenly, Leng Yan thought of a thing left by the ancestors on the earth, although that thing is rarely seen in modern times, or has lost its practical function, but it does not prevent that thing from playing a huge role in ancient times.

"Waterwheel!"

It's a waterwheel, as long as you can get the ancient waterwheel out, this drought crisis can definitely be solved, and the more Leng Yan thinks about it, the brighter his eyes become.

There is obviously no waterwheel in this world, if there were, the people of Quanyang would have used it a long time ago, where would there be a drought to such a degree,

Besides, if there is really a waterwheel, how can a place within a radius of 3,000 miles from Quanyang not be contested?

It would be nice if I could build some waterwheels, thinking of this, Leng Yan began to think,

In ancient China, the waterwheel was slowly accumulated from generation to generation, and it was not until Zhuge Liang's hands that it slowly became mature, but many improvements were still made in later generations.

"Hey, it seems that it is really difficult to summon a person who can build a water wheel!"

After thinking about it for a long time, Leng Yan shook his head helplessly,

His original intention was to summon more opportunities now, to see if he could summon a car builder by luck, but now it seems that there is very little hope.

"Wait, isn't there an exchange system? there are more than 10,000 things there, maybe there will be a water wheel."

Thinking of this, Leng Yan hurriedly summoned the summoning system.

Clicking on the exchange column, Leng Yan couldn't help but have a little headache, it was densely packed with things, and it was even more difficult to find a technology.

"System, can't you give me a category?

He muttered to himself helplessly,

Unexpectedly, something magical happened, just after Leng Yan finished speaking, the exchange column slowly changed, the materials and other things slowly moved together, and the tool materials also slowly gathered together.

"....... I still be like this? Then you didn't say it earlier, I wasted so much time in the first place!"

Leng Yan looked at the things sorted out on his face and scolded angrily,

Especially when he saw the neatly placed grain, salt, and forage, it took him two hours to find these three things.

It's a pity that the system didn't pay attention to Leng Yan's resentment.

"Are there any cheats here, such as how to build a waterwheel, etc., if any, get me out. ”

In the end, Leng Yan chose to give in, in fact, he figured it out, this system is very reasonable, as long as he says something, the system will do it, but he didn't know it at the time.

Sure enough, as soon as Leng Yan's words fell, the exchange panel flashed again,

A book of yellow-skinned and quaint cheats appeared in front of him, and the first place was exactly the method of making a waterwheel that Leng Yan needed.

"Oh yes, this is too expensive!"

Leng Yan hurriedly looked at the price with joy, but it didn't matter if he saw it, he was suddenly taken aback.

I saw that the secret book for making a waterwheel was written underneath

"Two thousand taels of silver or two thousand prestige. ”

What can you do with two thousand taels of silver?

With the exchange system, there will definitely be no problem in feeding the people of Quanyang for a few months. However, now a technology to make a waterwheel costs 2,000 taels.

"System, can it be cheaper!"

Since he knew that the system could understand what he meant, Leng Yan began to bargain, he didn't know that firewood, rice, oil and salt were expensive, and now he could save a little bit.

"Ding, remind the host that you can't bargain for exchanging items, they are consumable items, only the host can learn them, join the host to create a waterwheel, without the host's permission, even the skilled craftsmen of this world can't learn and steal. If the host finds it expensive, he can choose to exchange 1,000 taels directly for a waterwheel. ”

The system was not cold this time, although it did not reduce the price of Leng Yan, but finally gave the reason why the price could not be reduced.

"The watermill is so expensive? Leng Yan rejected the system's kindness without even thinking about it, after all, technology is king.

"However, isn't this exchanged technology a patent on the earth? If I am not willing to teach technology in this world, then I am the only one who can build a waterwheel, and no one else can learn it?"

Leng Yan thought for a moment and finally knew why a book of technology would sell so expensive,

This is simply a copy of the patent plus technical protection plus exclusive monopoly!

Not only that, but if other forces want to build a water wheel in the future, they must also obtain his consent, and then they can collect a lot of patent fees?

Thinking of this, Leng Yan no longer hesitated, and spent two thousand summon points to exchange for a book of cheats for making a waterwheel.

After the exchange, Leng Yan instantly felt a warm current flow into his mind, and the steps of making the waterwheel were clearly imprinted in his brain, and he felt that he was now a super master of making a waterwheel.

Even the manufacturing methods of tools such as water hangers, water mills, and water mills were deeply imprinted in his mind.

At this time, there was a knock on the door, and the person who came was Du Ruhui,

"King Yuyan, the list of necessary supplies for three months needed in Quanyang County has been listed, you see?"

"Oh, bring it in. ”

After a while, the door slowly opened, and Du Ruhui walked in with a long list in his hand.

To Du Ruhui's surprise, Leng Yan was also writing something at the moment.

"Old Du, wait a moment!"

Leng Yan glanced up at Du Ruhui before he said slowly.

As a modern earthling, his calligraphy is very ugly, and after a while, Leng Yan finished writing, looking at his work, and coughed a few times embarrassedly.

"Elder Du, a day later, you go to the county government treasury to redeem some reserves, and also, you can help me find these things, and you can find as many as you can. ”

Leng Yan said, handing over a densely written piece of paper.

Although Leng Yan's words are very ugly, he can still see what is written on it clearly.

"All kinds of wood, oil, etc."

In fact, the most used to make waterwheels is wood, that is, in modern times, some waterwheels used iron, and in ancient times, even wedges were made of wood.

Although Du Ruhui didn't know what Leng Yan wanted so much wood for,

But King Yan's words were holy decrees, and after he nodded yes, he withdrew.

After Du Ruhui walked out, Leng Yan called out the system panel again, and these cheats had successfully aroused his interest.