Mortal blood!

Originally, Lin Fan planned to take advantage of the time spent in seclusion to practice so that his physical body could reach perfection in the later stage of integration.

But now it seems that the five elements natal sword and the spiritual loss must be solved as soon as possible.

Otherwise, it would be a big trouble for Lin Fan who was trying to enter the Mahayana stage.

"I don't know much about Gu worms. I just don't know how much Shuhun knows about Gu worms."

Lin Fan thought for a while, then with a thought, he summoned the spirit of the book.

In recent years, if Lin Fan had nothing important to do, he would usually not disturb Shuhun.

Let him stay in "The Self-cultivation of the Book Soul" and immerse himself in reading.

"I have met the master. Congratulations on the great increase in strength. The impact of the Mahayana period is just around the corner."

As soon as Shuhun came out, he quickly flattered Lin Fan.

Even if there was anger in Lin Fan's heart, he was too embarrassed to express it.

"Okay, there is no need to be polite between you and me. I am looking for you this time, but I have something important to ask."

Lin Fan was not polite either.

With a thought, the Five Elements Life Sword shot directly towards the book soul.

"Master, wait a minute. If you want to ask anything, just ask. Why bother?"

Book Soul was horrified and quickly begged for mercy.

Lin Fan smiled lightly and said: "Why are you nervous? I won't really kill you. Look at my natal sword. The last time I fought with others, it lost its spiritual power. I have nourished so much in my Dantian. God, my spirituality has not recovered much. Can you help me see if there is any way to recover?"

"this……"

Shuhun calmed down and examined it carefully.

Not long after, he looked at Lin Fan and smiled slightly: "The master's magic weapon was injured by a Gu insect, right? However, this Gu insect is quite powerful. It actually has the potential to become an insect fairy."

Lin Fan was secretly surprised.

But he didn't interrupt Book Soul, letting Book Soul shake his head and continue talking.

"Master, the venom of this kind of poisonous insect is very powerful. It is similar to your formation that specifically hurts people's soul."

"If the master can devote himself to studying the formation and integrate that Gu insect into the formation. If he becomes an formation soul, the power of the master's natal formation will definitely increase a lot."

Although Book Soul did not immediately solve the problem of the Five Elements Life Sword, Lin Fan was moved by the idea of ​​adding more array souls to the Sky-Slaying Kuangsha Formation.

"The natal thing of the immortal cultivator can have the spirit of the weapon."

"Xiao Yu'er's Gu insect is very powerful. If I can integrate it into the formation, it will become the formation soul."

"Then, when I fight with others in the future, my strength will definitely improve a lot."

"However, I can't remember this. I have to take the time to study the formation. After my formation attainments reach a certain level, it won't be too late to integrate into the Gu insect as an formation soul."

Lin Fan thought secretly for a while and silently kept this matter in his heart.

"Master, you just said that you want to solve the spiritual problem of the Five Elements Sword. In fact, in my opinion, it is very simple."

"This...how is this a simple method?"

Lin Fan looked extremely curious.

If Shuhun can solve this matter, it will definitely help him a lot.

"Master, I just said that I asked you to integrate that Gu insect into the formation as a matter of formation soul. I didn't just say it casually."

"After that Gu insect becomes the formation soul, the master only needs to let the formation soul take away the mucus on the magic weapon."

Lin Fan looked overjoyed.

Shuhun is indeed a knowledgeable guy.

This method really kills two birds with one stone.

"Your idea is good. However, it is not an easy task to make the Gu insect the soul of the formation."

"What can you do?"

Lin Fan looked at Book Soul curiously, but Book Soul smiled mysteriously.

"Master, do you still remember those Tianque gold pages and Tianque silver pages you gave me before?"

"In the past few years, I have studied the Tianque Golden Page and the Tianque Silver Page for my master, and I happened to find a way to integrate the Gu insects into the birth formation for my master and become the formation soul."

Lin Fan was overjoyed again.

Unexpectedly, Shuhun really gave him a big surprise this time.

"How sure are you?"

Lin Fan asked curiously.

"This... what the master said, the natal formation is your master's formation. The master should personally take action on this matter. As for me, I just give a few random words to the master, and you don't need to take it to heart, master."

Shuhun explained awkwardly.

Lin Fan thought carefully for a while and felt that Shu Hun's words were reasonable and did not continue to embarrass Shu Hun.

Next, Lin Fan discussed in detail with Book Soul how to integrate the Gu insect into the natal formation and make it the soul of the formation.

In a blink of an eye, several months passed.

Lin Fan went from a formation master who knew nothing about formations to one who was proficient in formations.

However, his formation theory made rapid progress under the guidance of Shuhun.

If it is not compared to actual operation, Lin Fan asks himself that his theoretical knowledge of formations is not weaker than any formation master.

"Master, the way of formation is extremely mysterious. Master, please understand in detail what I have told you."

"In addition, Master's formation attainments are really poor, so I ask Master to practice more diligently. After passing my assessment, it will not be too late to integrate the Gu insects into the birth formation."

Shuhun looked cautious.

Lin Fan was not angry this time.

After nodding, he asked a few more questions that he didn't quite understand and were unsure of.

After Shuhun answered in detail, Lin Fan let Shuhun leave.

"The book soul has provided me with a new direction for cultivation."

"Before, I didn't pay much attention to the Heaven-killing Crazy Sand Formation. Now, I must pay attention to it."

Lin Fan muttered secretly.

At present, there are still more than four years before the five-year period agreed upon by him and Long Xiao and others.

Excluding the time for traveling, it is still four years at most.

Lin Fan plans to enter a state of retreat next.

First, refine the Dragon Body Tempering Pill and raise his physical realm to the late stage of fusion.

Second, patiently study the formation and try to refine the formation plate.

In this way, although it will take more time, these are all things Lin Fan has to do.

Cultivation does not have time. In a blink of an eye, three years have passed.

That day, Lin Fan, who was meditating in the secret room, was suddenly awakened by a powerful spiritual power fluctuation.

The next moment, he rushed out of the cave at a high speed.

After a few flashes, he arrived at the barren mountain hundreds of thousands of miles away from Wangyue City.

At this moment, a thundercloud quickly appeared in the sky that was originally filled with wind and snow.

Seeing this, Lin Fan summoned two red flame golden scorpions with a thought.

"I didn't expect that you two are so well-matched. After swallowing a large number of ancient spirit-feeding pills over the years, you finally broke through to the fusion stage."

"Okay, the next step is the most critical fusion thunder tribulation. As long as you survive the fusion thunder tribulation, you will be in the real fusion stage."

"As for the matter of protecting the law, leave it to me."

Lin Fan smiled faintly.

With a wave of his hand, several sets of protective formations have been activated by him.

Seeing this, the two red flame golden scorpions screamed excitedly at Lin Fan.

But the thunder tribulation in the void would not be polite to them at all.

After a loud bang, two bowl-thick thunder tribulations shot directly at the two red flame golden scorpions.