Back in the cave, Han Li first took a look at the Demon Light, and after seeing that it was still in retreat and cultivating, and nothing abnormal, he returned to the inner room, came to the table, took out a pen and paper, and began to draw.

With the slight movement of the pen end, slender lines emerge, gradually forming an octagonal square box drawing, which looks quite mysterious and complicated.

After drawing a frontal picture, Han Li looked at it for a while, then put it aside, took out another blank piece of paper, and continued to draw.

In a short time, seven or eight square box drawings carved from different angles were all spread out on the table.

Han Li's gaze swept over the drawings, he nodded in satisfaction, raised his two fingers and kneaded the somewhat sore eyebrows.

After a while, he took out another blank piece of paper and continued to draw the talisman that the Yang Venerable Master had engraved on the ground in the foreground.

"Hey, this is the 'Eight Yuan Liberation Array'......" At this moment, a voice suddenly sounded from behind him.

"Fellow Crab Daoist, do you know these drawings?" Han Li asked as he kept carving in his hand.

He didn't have to look back, and he knew that the person who came was a crab man.

A hint of confusion also flashed in the crab man's eyes, as if he didn't know why he called out this name.

"For some reason, it seems that when I see these patterns, I naturally remember them. He hesitated for a moment before he spoke.

"Oh, could it be that the memories that your original master sealed for you suddenly awakened somewhat?" Han Li asked again when he heard this.

"I don't know. The crab man shook his head.

He stepped forward, picked up the previous drawings and carefully studied them for a moment, and suddenly said, "There is something wrong here, the interlacing points of the formation pattern are distorted by a point, which will affect the actual function." ”

"Do you know how this thing is made?" Han Li was overjoyed and hurriedly asked.

"As long as there are materials, they can be made. Without the slightest hesitation, the crab man nodded and said.

With that, he took the pen from Han Li's hand and began to write stroke by stroke on the white paper.

After a moment, he handed Han Li a long list of names and said, "Now that these materials are ready, I will be able to create this eight-element key." ”

"Octadal Key ......"

Han Li muttered, his eyes glancing at the various materials written on it, and said in his heart, no wonder Master Jingyang was not worried that he had learned this eight-element solution, if he didn't know the material ratio, he wouldn't even be able to make this eight-element key.

But it was precisely because of this that Han Li felt more and more strange, why did the Crab Dao people know this?

However, looking at the previous expression of the crab Daoren, he knew that he himself seemed to have the same confusion.

"This eight-element solution array seems to only be useful for some special cave treasures, I wonder what Han Daoyou is trying to unravel?"

Hearing this, Han Li thought about it for a moment, flipped his palm, and took out the coccyx that he had obtained from the giant rat.

When he handed the tailbone to the crab man, his eyes were fixed on his eyes and face, trying to see some subtle changes in them.

As a result, the crab Dao man just frowned slightly, showed a hint of doubt on his face, and took it.

"Fellow Crab Daoist, do you recognize this thing?" Han Li asked directly.

"If you hadn't said it in advance, I wouldn't have seen that this thing was a treasure of the cave. The crab man looked at it for a moment, handed it back, shook his head and said.

"If I hadn't seen something at auction that had the exact same breath as it, I wouldn't have found it to be a magic weapon. When I prepare these materials, I will have to trouble Daoist friends to help me refine them. Hearing this, Han Li nodded and said.

"It doesn't matter. The crab man said.

After that, Han Li asked for some more material information about the Eight Yuan Key, and then hurriedly left the cave mansion and went to Jukun City again.

......

More than two months later.

On the ground inside Han Lidong's mansion, a small runic array had already been carved.

The crab Dao man was holding an octagonal square box in his hand, and with a "snap", he opened it and buckled it upside down in the center of the talisman array.

"Han Daoyou, put that Cave Heaven Treasure up......" The Crab Daoist glanced back at Han Li and said.

With a twist of his wrist, Han Li took out the coccyx and placed it on the upside-down box.

"The mantra of the dissolution ......"

Before Han Li could finish speaking, he heard the Crab Daoist say, "I just know that the mantra doesn't have much meaning, and it has to work with the mana in the body." ”

"Crab Daoist can say that, I guess he knows how to operate the technique, right?" Han Li said with a smile.

"Leave it to me. The crab man nodded and said.

After that, the crab man pinched the mantra with both hands, his lips continued to open and close, and began to chant silently, and the content of the mantra was exactly the same as that recited by the Venerable Master Jingyang.

A moment later, Dan saw a finger of his hands, and a white light flew into the beast's bones.

The surface of the coccyx first flashed with an emerald light, and then a layer of dazzling silver light bloomed, spreading on the surface of the bone like flowing water, making the entire coccyx turn into a snow-white and transparent color.

At the end of the tailbone, a pattern of a flower the size of a copper coin emerges.

Seeing this, Han Li's heart moved slightly.

This giant rat tailbone was indeed as he expected, it was the "flower branch" of one of the four cave-heaven treasures "flowers, birds, fish and insects" refined by the third-generation mountain master of the Hundred Mountains.

"This thing has been unsealed, and Han Daoyou only needs to refine it a little before he can open it. The Crab Dao Man picked up the tailbone and handed it back to Han Li, saying.

"I'm tired. Han Li nodded and said.

After he took the "flower branch", he looked at it for a moment, then sat down cross-legged, put his hands up and down, buckled the jade bone in the palm of his hand, and refined it.

After about two hours, Han Li's eyes opened, he raised his hand to wipe the sweat from his forehead, and stood up from the ground.

His eyes could not hide the joy, and after glancing at the crab man, he gently swiped on the "flower branch" with one hand.

I saw that the light of the jade bone trembled, and began to become void and transparent, and the brilliant silver light that bloomed on it turned into a door of light that was a few feet high.

"Fellow Crab Daoist, let's take a look with me to see what's going on inside this Heavenly Magic Weapon, right?" Han Li said with a smile.

With that, he took the next step and stepped into the silver light gate.

The crab man stood in front of the light gate and was about to step in, his figure suddenly stagnated slightly, and then returned to normal, and when he stepped into the light gate, his figure disappeared immediately.

Inside the light gate, Han Li's figure appeared on a spacious meadow.

His gaze swept over, and he saw a dense forest at the end of the meadow in front of him, and a faint smoke rose from it, which looked hazy and unrecognizable.

Han Li didn't rush into the woods, but flew along the edge of the cave first.

The sky within the cave is not high, but it is just ten thousand feet, and there will be a thick space barrier above, making it impossible for people to continue to fly upward, and the same is true of the surrounding margins, limiting the space of the entire cave to a certain range.

After inspecting the circle, Han Li found that compared to the "Fish Branch" of the Master Jingyang, the area inside this "Flower Branch" was much larger, but the concentration of the Heaven and Earth Spiritual Qi inside was basically the same.

After the inspection, he flew down into the woods with the crab man.

As soon as he entered the woods, Han Li distinctly felt a faint evil aura lingering in them.

There was a white path on the ground in front of him, paved with strange patterns, that snaked into the depths of the woods, and it seemed that the source of the evil aura was from this.

Han Li's brows couldn't help but frown slightly, and he leaned down to take a closer look.

After looking at it for a moment, he found that the white paths on the ground were not paved with white slate or jade, but with human and animal bones of different sizes and shapes.

"No wonder the evil aura on that giant rat's body is so strong, and it still has such a fetish......," Han Li couldn't help but sigh.

Along the path of the white bones all the way inward, the evil aura in the forest began to lessen a lot, and a lot of spiritual flowers and plants appeared on both sides of the road, both those that Han Li knew and many that he had never seen before, and it seemed that the age of medicine was not short.

Han Li didn't rush to screen and collect, and followed the path all the way inward, and came to a purple bamboo forest with a radius of no more than a few hundred zhang.

The purple smoke rises in the forest, the aura is dense, and you can vaguely see a two-story attic-style building, and there is no trace of evil qi left around, it looks like a fairy aura, quite a bit of the appearance of an immortal residence.

A blue light flashed in Han Li's eyes, and after carefully inspecting the Purple Bamboo Forest, and seeing that there was no prohibition in it, he stepped inside.

After the two entered the bamboo forest, they walked hundreds of steps, and saw a fenced courtyard in front of them, and when they opened the courtyard gate, they saw a small pond in the courtyard, in which purple smoke was billowing and rolling, and there were purple and golden lotus flowers planted in the center.

"It seems that the core of this Cave Heaven Treasure is this pond and these purple golden lotus flowers inside. Han Li stood at the edge of the pond and said thoughtfully.

"Yes, the foundation of this cave is here. The crab man also nodded and agreed.

With that, the two walked along a purple bamboo arch bridge erected above the pond and came to the two-story attic on the other side of the pond.

I saw that the attic as a whole is also built with purple bamboo, the bottom of the foundation seems to be planted on the ground, and some lilac roots can be vaguely seen, and the purple light outside the building is drenched, and at a glance you know that there is a prohibition attached to it.

"This purple bamboo building is quite interesting, borrowing the power of the purple golden lotus in the pond and fusing part of it with its roots. Once the ban is forcibly broken, the door may be able to open, but it will definitely damage the foundation of this cave. The blue light in Han Li's eyes retracted, and he turned to the Crab Daoist and said.

"This doesn't matter, as long as you make a slight adaptation to the Nine Spirits True Technique, you can open the attic ban on the premise of ensuring that you don't hurt the Purple Golden Lotus. The crab man said.

"Crab Daoist said it so easily, I think I am completely sure, then I will have to thank you again?" Han Li said with a smile.

The crab Dao man didn't refuse, just nodded silently, and began to urge the law to break the ban.