Lu Zhen knows very well how much water his identity as a divine envoy is, once these people see the problem, the result will be difficult to say, and he can't even save his life. And the only way to convince them of this is to make greater achievements that benefit the people of the Rahab tribe, and believe that they are indeed the messengers sent by the Immortal Heaven to help them.

But it is not easy to do this, at least for a while before, Lu Zhen had no clue at all. But now, after listening to Heza's words and tasting the stone, he had an idea.

"This stone was found near the tribe, right?" Lu Zhen glanced at the other party and asked.

Hezha nodded: "Yes, when we were grazing before, we found that some cattle and sheep would always lick the cliff there after eating grass, and someone tasted it because of curiosity." It turned out that the rocks had a somewhat salty taste. We rarely have access to salt, so we have to use this stone instead. Hezha said, looking at the small jar in Lu Jin's hand with a little greed, the refined salt in it was much better than the stone.

Lu Zhen nodded slightly: "Since these stones are salty, have you ever thought about turning them into edible salt?" ”

"This ...... How is this possible? Hezha suddenly showed a look of disbelief: "Actually, we did have this idea when we found out that the cliff rock has a salty taste. But no matter what we do, it's still just sand and gravel, and it can't be imported at all, so we can only lick it like it is now. ”

"If I say I can help you get salt out of the stones, would you believe it?" Lu Jin's eyes flashed, staring at the other party and asked.

Hezha was stunned at first, but soon, there was a little more excitement in his expression, and he immediately stood up from the ground and shouted at the surrounding people: "Everyone be quiet, I have something to say!" ”

Lu Zhen didn't expect this person to react so fiercely and quickly, and he was stunned. And the other Mongolian people in the Lahe Department were also quiet, and the laughter and singing just now suddenly stopped, and everyone's eyes looked at him, leaving on the two of them, even Hehu'er was puzzled.

Nor did he sell it, but immediately announced, "Our messenger has just told me great news, and he says he can help us get salt out of this salty stone!" The problem that has plagued us for years is finally being solved! ”

Hearing him say this, the clansmen were full of disbelief at first, but then, one by one, they showed excitement, and then cheered loudly, and at this time, their eyes when they looked at Yang Zhen were already full of eagerness and reverence.

The problem of salt shortage among the grassland tribes has indeed plagued them for too long, and even if they can go to the Central Plains to loot, it is impossible to grab too much salt. As for trading with the Ming people in exchange for salt, it is not something that these poor small and medium-sized tribes can do, so in the past few years, the only thing they can do is to suffer.

It's so gratifying that someone can solve this existential problem now. If it were just ordinary people who say this, they would feel a little unbelievable, but when it was said by the oracle, the situation was completely different, and almost everyone thought it would be true.

And they were still suspicious of Lu Zhen before, but at this moment, they finally let go of their prejudices, and their eyes were full of enthusiasm for believers looking at the gods.

Being stared at hopefully by these people, Lu Jin was a little overwhelmed, and at the same time he was a little complaining in his heart, why couldn't he hide things like this, and he was 100% sure of the things he hadn't completely decided on at once?

In fact, in addition to the excitement and his upright character, what is more important is that he needs to have such a credit. If Lu Zhen can really help the tribe solve the salt problem, then as the person who brought him to the Lahe Division, the credit will naturally be great, and maybe he can replace Mu Dai as one of the three elders.

Lu Zhen couldn't see the calculation for a while, and he was now facing a big problem, because Hehu'er had already walked over with several important people in the clan, and he also looked at him expectantly: "Divine envoy, what you said is true?" Can you really bring salt to our tribe? ”

"Probably yes, as long as the stones are on the edge of your tribe." So far, Lu Zhen has no choice but to bite the bullet, and this is also his chance to protect himself.

After a pause, he continued, "But I've lost my mana, so I'll need your help to get salt. ”

"There's nothing wrong with that." Hehu'er immediately waved his hand and said, "As long as you can bring salt to our tribe, all of us here are willing to obey the gods that have sent you." ”

"Yes, we are willing to obey the messenger!" The clansmen chimed in. Only Mu Chai's and a few other people's faces looked a little gloomy, looking full of worries.

Lu Jin, who had no way out, had no choice but to stand up: "In this way, I will take someone over tomorrow to take a look, I hope everything can be as I wish!" ”

When the crowd heard this, there was another burst of cheers.

The feast ended after such an exciting news, and many of the people of the Raha tribe were full of hope for the future, thinking only of coming tomorrow to see how powerful the oracle could be to bring scarce salt to themselves and the tribe.

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Jumping off the horse and looking up at the stone cliff several meters high and standing alone on the Gobi of the grassland, Lu Jin's heart was nervous for no reason.

Early this morning, he was called up, and then, accompanied by almost all the Rahabs, he hurried to this place, less than five miles from their station, and saw this stone cliff.

"This is it, oracle. Our stones are all picked up here. Hezha explained to him.

Lu Zhen nodded, then stepped forward, and after carefully observing the cliff, he wiped it with his hand, and then put it in his mouth and tasted it. Sure enough, there was something bitter and salty on it.

In this way, this cliff stone does have its own salt, or a mineral with sodium chloride. For a liberal arts student, Lu Jin's understanding of chemistry has come to this point.

But this does not prevent him from judging in this matter. Because as far as Lu Zhen knows, even in later generations, in addition to synthesizing, the table salt that people eat is more well salt than boiling it with seawater as some people think. The well salt is produced by minerals, and it looks a little similar to this cliff.

Of course, it is impossible for Lu Zhen to understand the methods of accurately extracting sodium chloride from minerals in later generations, but he still has some memory of the methods of separation, filtration and other experiments he did in middle school. Moreover, he didn't think that some impurities left in the salt from the cliff rock would have much effect and harm, which was much healthier than licking the stone like they did, right?

Thinking of this, Lu Zhen didn't hesitate any longer, and immediately beckoned the Zhongmeng people who were ready to move, and asked them to chisel some gravel and bring it back to the tribe.

Although they didn't understand Lu Jin's intentions too much, everyone still obeyed the order, and after bringing back a few hundred catties of gravel, they brought water from the river next to them, set up a pot, and put the stones in it to boil first.

Seeing that Lu Zhen actually asked everyone to boil stones, although others didn't say it, Hezha was a little uneasy, and found an opportunity to ask him in a whisper: "Divine envoy, is this really useful?" ”

"Don't worry, as long as this stone is as I expected, it will surely give you salt to use. However, there are a few more steps to follow. Lu Zhen smiled and said.

After boiling like this for a long time, Lu Zhen saw that there was less than half of the water left, so he let people go to the fire, and then ordered someone to take out the stones inside, and then covered a stack of gauze in his backpack on a bucket, and ordered someone to slowly pour the boiled water on it.

When the bucket of water was full, there was already a layer of sand and gravel on the gauze, Lu Zhen threw it to the Mongolian people to wash it, and then poured the water in the bucket into another clean pot and let them continue cooking, and this time, he meant to boil all the water.

For this series of orders, the people of the Lama tribe naturally followed the infallibility, but they felt more and more puzzled in their hearts, they had done so many things, and completely boiled the water, didn't this make everyone busy in vain? It was only because Lu Jin's identity as a divine envoy was supported behind him that everyone hoped that they could really make salt, so they endured it for the time being.

Their thoughts naturally fell into Lu Jin's eyes, and to be honest, he was a little vague about whether this matter could be done or not. So in the next cooking process, he stayed on the side, refusing to leave, and his eyes were firmly fixed on the very broken pot.

He's just a separation experiment for middle school students. It is based on the fact that sodium chloride is highly soluble in water, and filtration and other means. As long as the stone does contain sodium chloride, some salt can always be extracted by this simple method of separation. But if your judgment is wrong, it's hard to say.

After adding firewood several times and boiling for more than an hour, the large bucket of water was finally completely dry, and while ordering someone to remove the pot, Lu Zhen had rushed over quickly, carefully examining the bottom and edge of the pot. When he saw the layer of fine particles attached to it, he finally breathed a sigh of relief, and he finally succeeded.

"That's the salt." Lu Zhen dipped a little of his finger and showed it in front of everyone's eyes.

He Hu'er and a few others had also rushed over, and when they saw the particles on Lu Jin's fingers, their expressions also changed suddenly, and then they impatiently reached out and dipped some of them, and then put them in their mouths to taste them.

Then, under the gaze of many clansmen, Hehu'er and the others showed ecstasy on their faces at the same time, and only after a while did they cry out: "It's salt, the gods really brought us salt!" ”

Lu Zhen looked at the jubilant Mongolian people around him, and he knew that he had completely gained a foothold in the Lama Department this time, and it also made them completely believe that they were the identity of the divine envoy.

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Keep begging... Asking for support...