Long Junhai laughed heartily, then said, "I'll take anything. The more precious, the better!"

"If that's the case, I'll be completely relieved. I've used up all the gold coins on me, so I'll mortgage these magic crystals to you." The man in red was now very respectful to Long Junhai, because he knew that the other party's strength was far above his, so he would not offend Long Junhai at all.

Long Junhai smiled upon hearing this, and then said, "That's great. I also want to improve the environment here. The wind and sand have been too strong lately, and I'm afraid this oasis won't last much longer. So I plan to build a large magic circle, and your crystals are just perfect for it."

Long Junhai took the crystal and said to the people waiting in line outside, "Do you want to help me control the sandstorms? Ordinary people get 100 gold coins a day, while magicians or warriors get one magic crystal. The higher your strength, the more magic crystals you get! This opportunity is rare!"

As long as Long Junhai opens his mouth, no one is unwilling to help. Not to mention that he pays such a high salary, even if he doesn't pay, there are still many people willing to help!

In fact, Long Junhai can control this desert by himself, but because he doesn't want to show his strength completely, he hides it temporarily. If he relies on the power of ordinary people to accomplish it, it can also improve everyone's living standards.

What Long Junhai wanted everyone to do was actually very simple, which was to help him set up a magic circle. Because the magic circle needed to have needle holes arranged in different positions to ensure that it would not collapse for a long time, so using manpower was the best thing to do at this time.

Long Junhai gave everyone the most solid magic circle formation. Ordinary people can complete it with magic crystals. Magicians and warriors are more efficient. It is basically not difficult for everyone, just a little running around.

Long Junhai said at this time: "Everyone work hard, as long as you follow my instructions, you will definitely benefit from it!"

Long Junhai would set up certain formations at certain distances, so that all the formations could be combined together when the time came.

However, this process only lasted for ten days, because after ten days Long Junhai had no magic crystals left, so he could only let ordinary people work. He still had a lot of gold coins in his hands, at least enough to support him for several years.

Moreover, Long Junhai was not in a hurry. In just ten days, the wind and sand around the oasis had become much smaller.

Now that the man in red had no magic crystal left, he took out his other belongings, including various magical instruments, rare minerals, herbs, etc. Long Junhai accepted them all because that was his rule.

But after so many days, the man in red still hadn't made a breakthrough, because he encountered a big bottleneck and couldn't figure out the reason.

So in the end the man in red couldn't help but ask Long Junhai. After all, only a master like Long Junhai could answer his questions.

"Mr. Long, I have some questions that I don't understand. Could you please answer them?" the man in red asked respectfully.

"Ask whatever you want, but the prerequisite is that you can give enough money. The specific amount depends on how much your question is worth." Long Junhai said with a smile.

"I want to ask how magic power can transform quantitative change into qualitative change!" As a great magician, the man in red has to face this only hurdle that he cannot overcome. Once he crosses this hurdle, he will be one of the top masters in the world!

"This question is just average. If you want to hear the answer, you'll need at least one million magic crystals." Long Junhai said with a smile.

"So expensive!" said the man in red in shock.

"Of course it's expensive. After I explain it to you clearly, you can directly break through to the realm of the great magician. Do you think it's expensive? Do you think it's worth it? If you can't break through to the great magician level, I can return all the magic crystals you gave me without asking for a penny! Of course, there is also a cheaper answer, 10,000 magic crystals at a time, but this requires you to have some profound insights, and it is hard to say whether you can break through to the great magician level!" Long Junhai said with a smile.

The man in red was stunned for a moment, then said excitedly, "One million magic crystals is indeed not expensive, but I don't have that much assets right now. Can I buy it on credit? I have about 300,000 crystals in assets. I'll consider it as interest. When I have one million magic crystals, I'll pay you. How about that?"

"Of course there is no problem." Long Junhai said with a smile.

The man in red was stunned for a moment, then asked nervously, "Mr. Long, are you really that confident? What if I never come back? Wouldn't you be in big trouble?"

"What did you lose? I just lost some magic crystals, but it made me see you clearly. It will be difficult for you to become stronger in the future. Are you sure you will never have any questions that need to be answered in your lifetime? Do you think you can buy an answer with one million magic crystals at that time?" Long Junhai asked with a smile.

"You are right, my knowledge is too short-sighted! This is all my assets, please help me solve my doubts." The man in red said more respectfully.

"It's very simple. Quantitative change leads to qualitative change. The reason why there is no qualitative change is that the quantity is not enough. Although this method is time-consuming and labor-intensive, it is the easiest to do. As long as you have perseverance, you can achieve qualitative change in thirty to fifty years." Long Junhai said with a smile.

"Thirty to fifty years? I'm already in my forties. If I wait another thirty to fifty years, I won't have much time left! Is there a way to shorten the time?" The man in red asked excitedly again.

"Of course there is a way, but that's the second question. I can help you break through in 20 years, or in 10 years. Of course, the fastest way is to help you break through in one day. It all depends on whether you have the money." Long Junhai said with a smile.

The man in red was shocked beyond words when he heard this. He had never thought that Long Junhai could say such a thing! He couldn't believe it was true! But since Long Junhai said this, he must have his reasons and confidence.

"Mr. Long, how much money should I give you if I choose to break through within one day?" the man in red said nervously.

"Haha, considering your current situation, I can't give you more than that. How about I let you be my slave for thirty years?" Long Junhai asked with a smile.

"Thirty years of slavery? This..." The man in red was a little embarrassed, because being a slave for thirty years was still a very painful thing.

At this time, Long Junhai smiled and said, "You don't have to be so embarrassed. I am also very entangled because I have to take a certain risk. If you die outside, I will really lose a lot!"