Mortal blood!

Lin Fan's expression was very anxious.

This made Cui Yu curious.

After carefully looking at Lin Fan for a while, Cui Yu discovered that Lin Fan was not very old, but his level was at the early stage of foundation building like him.

This seemed to make Cui Yu think of something, and he looked at Lin Fan with a touch of contempt.

"Fellow Daoist Lin is really impatient. Do you know that refining a large amount of source power will damage the foundation of your own path?" Cui Yu said with a strange expression.

Lin Fan was stunned.

He refined the original power just to raise the level of "Five Elements Chaos Sword Technique" to the top grade, not just for the sake of speed.

At this moment, although Cui Yu misunderstood Lin Fan, this became his biggest cover-up.

"Ahem, fellow Taoist, I don't know something. I am of Xuan-level bloodline. I am extremely lucky to be able to successfully build the foundation. If I can use the power of the source to break through to the pill-forming stage, I will naturally give it a try."

Lin Fan coughed lightly and said quickly.

What he said is complete nonsense.

Cui Yu believed it.

It is certain that at a young age, Lin Fan is already a cultivator in the foundation-building stage. Moreover, he is also very persistent in his original power.

If Lin Fan's cultivation did not rely on the power of the original source, Cui Yu would not be able to find a reason to convince himself.

"Hey, there is really a difference between cultivating immortals and cultivating immortals. Since Fellow Daoist Lin knows the dangers of the original power, I naturally won't say anything more."

Cui Yu sighed softly.

Seeing that Lin Fan still looked eager, Cui Yu said again: "I do have a method to extract the perfect source of power. But, I won't give it to you in vain."

"Make an offer!"

"A thousand pieces of low-grade spiritual stones."

Cui Yu seemed to be smiling but not smiling.

Lin Fan did not hesitate: "Deal!"

"this……"

Cui Yu was slightly startled.

He became more and more convinced that Lin Fan was the kind of immortal cultivator who would do anything to speed up his cultivation.

Cui Yu looked normal on the surface, but deep down he was quite contemptuous of Lin Fan.

With a flip of his palm, Cui Yu threw a jade slip to Lin Fan.

"This is my experience in researching the power of origin. There are methods on how to extract perfect power of origin. You can read it carefully after taking it."

"In addition, the original power extracted by us cultivators is not very pure. Therefore, every time we refine the original power, certain impurities will remain in our bodies."

"If things go on like this, these impurities hinder our bodies and block the foundation of our path."

"As long as Fellow Daoist Lin can extract the purest power of the perfect origin. Even if you practice with the power of the perfect origin, it will not affect the foundation of the avenue."

When Lin Fan heard this, his eyes suddenly lit up.

An indescribable joy emerged from deep within him.

"Is this true?"

"Of course. But, when will you give me those thousand low-grade spiritual stones?"

After a little trick on Lin Fan, Cui Yu looked secretly happy.

Lin Fan was so angry that he almost vomited blood.

A thousand low-grade spiritual stones!

This is not a small amount for those who are cultivating immortals in the foundation-building stage.

Although, Lin Fan has more than 300,000 low-grade spiritual stones.

However, no one would give away the spiritual stone in their hands in vain.

"Fellow Daoist Cui is really good at making money. However, since I have promised you, I will not regret it."

Lin Fan sneered and angrily threw ten middle-grade spiritual stones to Cui Yu.

The perfect source of power can eliminate the damage caused by the source of power to the foundation of the avenue. This method of extracting the power of perfect origin is of high value to all immortal cultivators.

Not to mention a thousand low-grade spiritual stones.

Even a thousand top-quality spiritual stones may not be available for purchase.

The reason why Cui Yu used the low price of a thousand low-grade spiritual stones to sell the method to Lin Fan. It was just that Lin Fan was certain that there was no way to obtain the perfect source of power.

But Cui Yu didn't know at all that Lin Fan's mysterious copper bottle was a good thing to strengthen the original power.

On the surface, Lin Fan suffered a big loss.

Only Lin Fan himself knew that Cui Yu was the one who suffered the big loss.

"Fellow Daoist Lin is someone who keeps his word, but I was mistaken."

Cui Yu smiled proudly and put away Lin Fan's spirit stone.

After a pause, Cui Yu smiled again and spoke.

"Actually, you should have guessed that the value of the Xiaosancai Spirit Gathering Array is more than 30,000 low-grade spirit stones."

"I just used the Xiaosancai Spirit Gathering Formation to find a fellow Taoist who can see through Nuanyang Baoyu for help."

Lin Fan seemed to have a normal expression, but he was constantly making calculations in his heart.

"Although I have obtained a method from Cui Yu that can extract the perfect source power. However, it is too time-consuming for me to extract the source power myself."

"It would be great if we could get some original power from Cui Yu."

Although, Lin Fan desperately wanted to trade with Cui Yu.

But he didn't dare to agree to help Cui Yu rashly.

After pondering for a long time, Lin Fan said: "Fellow Daoist Cui, I don't know what you need me to do? If you need to fight hard, I think it's better to forget it."

Cui Yu was slightly startled.

Then, he quickly explained with a smile.

"Haha, Fellow Daoist Lin is over-worrying. I just need Fellow Daoist to help me place the array eye in the center of a piece of Warm Sun Jade. I have tried countless methods but can't succeed. This matter is not difficult for Fellow Daoist."

This time, Lin Fan did not hesitate.

"If that's the case, I can help. However, I also need the power of the source. Can Fellow Daoist Cui sell me some?"

"this……"

Cui Yu was embarrassed for a while.

The original power in his hands is not enough even for himself.

How can there be any extra to sell to Lin Fan?

Thinking that Lin Fan was the only person who could help him, Cui Yu hesitated again.

"I have not extracted much origin power, so I can't sell it to you. However, I still have some defective origin power that I can give to you."

"Of course, there are a lot of impurities in those defective origin powers. But, fellow Daoist Lin, don't worry about the destruction of the foundation of the avenue. Those defective origin powers can fully meet your needs."

Lin Fan looked stunned.

Cui Yu was fooling him by passing off inferior products as good ones.

If he didn't have the mysterious copper bottle in his hand, he would naturally not do such a loss-making business.

But now, Lin Fan doesn't care about these.

Even if it is defective origin power, it only needs to be strengthened by the mysterious copper bottle, and the purity will be greatly improved.

It is enough to reach the level of perfect origin power.

What's more, these defective origin powers are given away for free.

This is simply a great thing for Lin Fan.

However, Cui Yu saw that Lin Fan didn't speak for a long time, and thought that Lin Fan would refuse.

"Fellow Daoist Lin, please think about it carefully. Those defective original powers can fully meet your needs. Moreover, there are quite a lot of them. I'm giving them to you for free." Cui Yu said anxiously.

Lin Fan was overjoyed, but still didn't speak.

Seeing this, Cui Yu became more anxious.

"If you agree to help me with this, you can choose a set of protective formations that I made by hand, how about it?"