The map has a mountain-like icon, but unlike a normal mountain, it has several curves drawn on it.

"This place is a volcano, it's useless, and it often smokes, so I marked it out for ease of identification, using it as a coordinate point!" Qin Manwu said.

"Volcano, it's still smoking!" Jiang Xingchen's eyes lit up when he heard this, and a documentary he had seen in his previous life was replayed in his mind, talking about the hardships of Indonesian workers collecting sulfur mines!

"Sulfur, good thing! I remember that rubber seems to be usable, and if you get phosphate rock to make matches in the future, you should also use it, and this thing can also be used for sulfuric acid in the future...... Look for it a little further away from the volcano, maybe there are hot springs, and you can make money by making a hot spring tour or something......"

The more Jiang Xingchenyue thought about it, the corners of his mouth also curled, and he nodded at the location of the volcano and said, "Give me this volcano?"

"What?" Qin Manwu and Jun Buyan were stunned for a moment, and looked at Jiang Xingchen in surprise, don't you want a valuable mine, what do you want a useless volcano for?

"Jiang Xingchen, you don't have to be polite to us, this is my father's ...... for rewarding you for solving the drought in Great Qin" Qin Manwu immediately persuaded, in her opinion, Jiang Xingchen just didn't want to accept gifts, and deliberately shirked, but she didn't expect Jiang Xingchen to really value the volcano.

These days, Qin Manwu has been suffering from gains and losses, and the business on the desert side has been interrupted because of the war, not only the losses on his side are huge, but Jiang Xingchen is even worse, at least a few hundred million yuan a year is gone.

Of course, tea, spirits, honey and these things do not worry about no buyers. What she is worried about is whether Jiang Xingchen will give all the quotas to the Wang family in the future and sell them directly overseas. After all, the Southern Wilderness will definitely not be able to sell the price in the sand sea.

It's not just Qin Man Dance. The old man was also a little stunned, he didn't think that Jiang Xingchen was refusing in disguise. This kid took Moon Shadow's cold iron ore. How could he not accept Daqin's gift.

He was stunned what Jiang Xingchen wanted a volcano for, with his understanding of this kid. This volcano definitely has a role.

"Boy, is there anything you need from this volcano?" the old man asked casually.

The old man's question, Qin Manwu and Jun Immortal reacted, and looked at Jiang Xingchen suspiciously, waiting for an answer!

Jiang Xingchen smiled and nodded, "There should be sulfur near the volcano, I need this thing!"

"Brimstone, what is that?" the old man was curious.

"A yellow ore that can be used for many things......" he looked at the old man. Jiang Xingchen continued: "It can also be used as a medicine to treat diseases! Sulfur ointment is quite effective in treating eczema or something. ”

"What?" the old man's mouth opened in an instant, and ore can also be used as medicine, no mistake.

"What kind of expression do you have, is it strange for ore to be used as medicine! You are still a great doctor, don't you even know this......" Jiang Xingchen looked at the old man with some disdain.

"No......" The old man felt a little confused and asked, "What's that...... How can you eat that thing?"

"Why can't you eat it...... Salt is a kind of mineral, and the salt of the Great Qin Kingdom is all dug from the salt mine! Alkali is also a mineral, which steamed bun is not used...... Also, our Xingchen Collar zuò tofu doesn't just use brine. It's the same with gypsum! These minerals are edible! And raw gypsum has the effect of removing fire and accumulation, don't you know?"

Don't look at Jiang Xingchen who made the sheep intestine and syringe, he really hasn't had much in-depth knowledge of medicine, and he really doesn't know that the drugs in this world are basically herbs. There is no use of minerals.

"Raw gypsum can remove fire accumulation, are you mistaken?" the old man grabbed Jiang Xingchen excitedly. As a great physician, he is quite obsessed with medicine. At first, I studied for decades for a abdominal pain disease.

If what Jiang Xingchen said was true, it would be amazing. This is equivalent to breaking the perception of traditional medicine for countless years.

Jiang Xingchen was frightened by the old man's expression, and the old guy was so excited only a handful of times. At that moment, he said, "What's that...... Hehe. I'm talking nonsense, I can't do it accurately, I don't know if it will work......"

Jiang Xingchen didn't dare to say that he was dead, although he knew the medicinal value of the gypsum in his previous life. But who knows that in this life, there is a difference between the two worlds, and he has not found the most common thing such as saltpeter until now, and who knows if there is any essential difference between the human body.

"Don't worry if it's okay or not, just try it!" The old man laughed, and he didn't care about asking about the volcano, he patted Jiang Xingchen hard, and said loudly: "If it really happens, then the entire medical community will take a big step forward!"

When the words fell, the old man turned around and ran. He had to write to Huang Shi and Qingyun right away, and let these two guys do their job. He couldn't find the raw gypsum here, so he had to ask the stars to send it to Yellowstone.

He believed that Huang Shi and Qingyun would definitely be shocked when they saw this letter!

When the old man ran out, Jiang Xingchen rubbed the place where he was photographed, the corners of his mouth twitched wildly, and he scolded in his heart: "Cheap mouth...... I'm full of food and say why is this done, just tell them that the sulfur is useful, and make it out of medicinal value! Now it's okay, the old man will run to sue Huangshi and Qingyun, if he eats someone to death with raw gypsum, it will be a real sin!

Jiang Xingchen was stunned here, but Qin Manwu and Qun Immortal were relieved, Jiang Xingchen asked for this volcano not to shirk, but to be really useful...... That's when they were amazed that volcanoes were useful.

After a moment of silence, Qin Manwu's thoughts returned to the desert, and the scale and status of the world's commercial banks are completely because they opened up the desert at the beginning, and it is almost the same as the pillar of the world's commercial houses. Ever since the desert accident, she has been wondering how to solve it almost every day.

Originally, she was at a loss, but Jiang Xingchen solved the drought, which made her see hope all of a sudden. Isn't the situation on the other side of the desert also caused by drought and water?

"Jiang Xingchen, over there in the desert, why don't you think of a way!" Qin Manwu said, waiting for a reply with great anticipation.

Jiang Xingchen frowned, shook his head, and said, "Over there in the desert...... I can't fix it yet!"

"How is it possible, haven't you solved the drought on our side!" Qin Manwu immediately asked.

At present, the grain varieties we use are all the best varieties that have been improved by Yuanshi, and their vitality and ability to resist drought are very strong, and they only need a small amount of water. Otherwise, even if nearly 100,000 pressurized water wells are pumped out day and night for 28 days and nights, they will not be able to supply such a large planting area......"

Sighing softly, Jiang Xingchen continued: "This is still on our side, and the difference is even greater in the desert water-scarce areas...... Moreover, the groundwater on our side is shallow, which is easy to perforate. It's different over there, if you want to get water, you have to dig a deep well and take the water between the two aquifers!"

Jiang Xingchen didn't want to have problems with the business over there in Shahai, but now he really couldn't do anything, let alone dig a deep well. He can't even detect and locate it now.

If you want to solve the problem of water in the desert, you have to develop the formation to the next stage, and you have to get a power plant. Digging deep wells is not something that can be done manually.

After listening to Jiang Xingchen's explanation, Qin Manwu knew that it was really impossible to do anything, and he could only shake his head regretfully.

"You don't have to worry, the loss on the other side of the sand sea is only temporary, and we will go again when we are stable. Jiang Xingchen persuaded.

He said so in his mouth, but he didn't think so in his heart, if it was two big forces fighting, it would be normal to fight for ten or eight years. On the other side of the desert, I had no choice but to give up.

To make this heart-wrenching decision, Jiang Xingchen had to comfort Qin Manwu: "In the past few years, we have not opened tea to the inside, so let's sell it in the same place during this time! The price may not be as high as the desert, but we also save the freight!"

Jiang Xingchen said this, Qin Manwu laughed, the things that Xingchen received were expensive, but the freight was really not too much, and it didn't take many carriages.

However, after Jiang Xingchen's persuasion, Qin Manwu's mood was much better! In fact, tea was bought by people in the same kingdoms as the Qiankun Empire, but she was too concerned about the desert before! More importantly, he was worried that Jiang Xingchen would hand over the tea to the Wang family...... Now that she knows Jiang Xingchen's thoughts, of course she is relieved.

After that, the two discussed when to send someone to the volcano to take a look, and Qin Manwu and Jun Immortal said goodbye and left.

Not long after, the old man came back, pestering Jiang Xingchen and asking what minerals could be used medicinally.

Jiang Xingchen can know that raw gypsum is still watched in the health show in the previous life. The brimstone anointing thing was because a buddy went in and said it when he came out drinking. As for what other minerals can be used medicinally, he doesn't know.

The old man didn't believe it, and pestered him to keep asking. In the end, Jiang Xingchen couldn't stand it anymore, so he called Pink out, saying that the old man's cultivation had risen greatly and he wanted to practice with it.

Pink chirped happily when she heard it, and it hadn't moved for a long time.

The old man was so angry that he scolded the street, this little soul is really too damaged, don't take such a play! Practice with Pink, I'm stupid and crazy to say this, that's looking for practice!

Resolutely disagreeing to live with Pink, the old man refused loudly, turned his head and ran out.

Pink finally had the opportunity to move, of course she didn't want to give up, and chased after her...... And then, no more......

Early the next morning, Jiang Xingchen set off for his journey, and the old man was surprisingly silent, sitting in a carriage without showing his face, and not even saying a word.

At first, Jiang Xingchen didn't care, but as soon as the time came, Jiang Xingchen felt that something was wrong. The old fellow couldn't sit idle for a while, and now it's too quiet.

The more he thought about it, the more curious he became, Jiang Xingchen ran to the old man's carriage. He laughed as soon as he entered the door, and the old man's eyes were beaten like Zorro in a mask.

If it's just like Zorro, it's nothing, Jiang Xingchen is pink, how did it beat the old man like this, is it not scientific to clench his wings into fists!

But then, Jiang Xingchen couldn't laugh anymore!(To be continued......)