Back inside the cave dwelling, Han Li first went to check on Demon Light. Seeing that he was still in secluded cultivation and that nothing unusual was happening, he returned to the inner chamber. He went to the table, took out paper and pen, and began to draw.

With the light movement of the pen, slender lines emerged, gradually forming an octagonal box blueprint, which looked quite mysterious and complex.

After drawing a front view, Han Li glanced at it briefly, put it aside, and took out another piece of white paper to continue drawing.

Before long, seven or eight box blueprints, drawn from different angles, were all spread out on the table.

Han Li scanned these blueprints and nodded with satisfaction, raising two fingers to rub his slightly sore brow.

After a while, he took out another piece of white paper and continued to draw the symbol array that Jingyang Shangren had engraved on the ground.

"Huh, isn't this the 'Eight Elements Disentanglement Array'..." Just then, a voice suddenly sounded from behind.

"Fellow Daoist Crab, do you recognize these blueprints?" Han Li asked without stopping his hand.

He knew without turning his head that it was Fellow Daoist Crab.

A trace of confusion flashed in Fellow Daoist Crab's eyes, as if he didn't know why he would call out this name.

"I don't know why, but it seems that as soon as I see these patterns, I naturally remember them," he said after a moment of hesitation.

"Oh, could it be that some of the memories sealed by your original master have suddenly awakened?" Han Li asked again upon hearing this.

"I don't know," Fellow Daoist Crab shook his head.

He stepped forward, picked up the previous blueprints, examined them carefully for a moment, and suddenly said, "There's something wrong here. The intersection point of the array patterns is distorted by a fraction, which will affect the actual function."

"Do you know how to make this thing?" Han Li asked quickly, delighted.

"As long as there are materials, it can be made," Fellow Daoist Crab said without hesitation, nodding.

After saying that, he took the pen from Han Li and began to write stroke by stroke on the white paper.

After a while, he handed a long list of items to Han Li and said, "Once these materials are prepared, I can create this Eight Elements Key."

"Eight Elements Key..."

Han Li muttered to himself, scanning the various materials written on it, thinking that no wonder Jingyang Shangren didn't worry about him learning this Eight Elements Disentanglement Array. If he didn't know the material ratios, he couldn't even make this Eight Elements Key.

But precisely because of this, Han Li felt even stranger, why did Fellow Daoist Crab know these things?

However, judging from Fellow Daoist Crab's previous expression, it was clear that he himself seemed to have the same confusion.

"This Eight Elements Disentanglement Array seems to only be useful in some special cave treasures. I wonder what Fellow Daoist Han wants to unlock?" Fellow Daoist Crab suddenly asked.

Upon hearing this, Han Li thought for a moment, flipped his palm, and took out the section of tail bone he had obtained from the giant rat.

As he handed the tail bone to Fellow Daoist Crab, his eyes were fixed on his eyes and expression, trying to see some subtle changes.

As a result, Fellow Daoist Crab only frowned slightly, showing a hint of doubt, and took it over.

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

"If you hadn't told me in advance, I wouldn't have been able to tell that this thing is a cave treasure," Fellow Daoist Crab said, handing it back after looking at it for a moment, shaking his head.

"If I hadn't seen something with the exact same aura as it at the auction, I wouldn't have discovered that it was a cave magic weapon. Once I have prepared these materials, I will have to trouble you to help me refine it," Han Li nodded and said.

"It's no problem," Fellow Daoist Crab said.

After that, Han Li asked for more information about the materials for the Eight Elements Key, and then hurried out of the cave dwelling, going to Jukun City again.

...

More than two months later.

On the ground inside Han Li's cave dwelling, a small symbol array had already been engraved.

Fellow Daoist Crab held an octagonal box in his hand. With a "snap," he opened it and placed it upside down in the center of the symbol array.

"Fellow Daoist Han, put that cave treasure on top..." Fellow Daoist Crab said, looking back at Han Li.

Han Li flicked his wrist, took out the section of tail bone, and placed it on the inverted box.

"The incantation to unlock the array..."

Before Han Li could finish speaking, he heard Fellow Daoist Crab say, "Just knowing the incantation is not very meaningful, you have to coordinate the operation of your inner magic power."

"Fellow Daoist Crab can say this, so you must know how to operate the magic formula, right?" Han Li said with a smile.

"Leave it to me," Fellow Daoist Crab nodded and said.

After saying that, Fellow Daoist Crab pinched his fingers with both hands, his lips constantly opening and closing, and began to chant silently. The content of the incantation was exactly the same as that recited by Jingyang Shangren.

After a moment, he pointed his fingers with both hands, and a white light flew into the beast bone.

The surface of the tail bone first flashed with emerald light, and then bloomed with a layer of dazzling silver light, like flowing water spreading across the surface of the bone, turning the entire tail bone into a snow-white, translucent color.

At the end of the tail bone, a copper coin-sized flower pattern then emerged.

Han Li's heart stirred slightly at the sight of this.

As he expected, this section of giant rat tail bone was one of the four cave treasures "Flowers, Birds, Fish, and Insects" refined by the third-generation master of Bai Zao Mountain, the "Flower Branch."

"This item has been unsealed. Fellow Daoist Han only needs to refine it slightly, and then you can open it," Fellow Daoist Crab picked up the tail bone, handed it back to Han Li, and said.

"Thank you for your trouble," Han Li said, nodding.

After taking the "Flower Branch," he looked at it for a moment, then sat down cross-legged, clasped his hands together, placed the jade bone in the palm of his hand, and began to refine it.

About two hours later, Han Li suddenly opened his eyes, raised his hand to wipe the sweat flowing from his forehead, and stood up from the ground.

His eyes could not hide his joy. After looking at Fellow Daoist Crab, he gently stroked the "Flower Branch" with one hand.

He saw that the section of jade bone trembled with light, began to become illusory and transparent, and the brilliant silver light blooming on it turned into a light gate about ten feet high.

"Fellow Daoist Crab, why don't you join me in seeing what wonders are inside this cave magic weapon?" Han Li said with a smile.

After saying that, he took a step and stepped into the silver light gate.

Fellow Daoist Crab was about to step into the light gate when his figure suddenly paused slightly, then returned to normal and stepped into the light gate, his figure then disappearing.

After entering the light gate, Han Li's figure appeared on a wide grassland.

His eyes scanned the area, and he saw a dense forest at the end of the grassland directly in front of him. It was filled with faint smoke, making it look hazy and unclear.

Han Li was not in a hurry to enter the forest. Instead, he flew along the edge of the cave.

The sky inside the cave was not high, only ten thousand feet. Above that, there was a thick spatial barrier that prevented people from continuing to fly upward. The edges of the surrounding area were also the same, restricting the space of the entire cave within a certain range.

After a round of inspection, Han Li found that compared to Jingyang Shangren's "Fish Branch," the area inside this "Flower Branch" was much larger, but the concentration of spiritual energy inside was basically the same.

After the inspection, he took Fellow Daoist Crab and flew down into the forest.

As soon as he entered the forest, Han Li clearly felt a faint evil aura lingering in it.

There was a white path on the ground in front of him, covered with various strange patterns, winding into the depths of the forest, and the source of those evil auras seemed to originate from it.

Han Li couldn't help but frown slightly and bent down to examine it carefully.

After looking at it for a moment, he discovered that the white path on the ground was not paved with white stone slabs or beautiful jade, but with human and animal bones of different sizes and shapes.

"No wonder the evil aura on the giant rat's corpse was so strong. It actually had such a habit..." Han Li couldn't help but sigh.

Along the white bone path all the way inward, the evil aura in the forest began to weaken a lot. Many spiritual flowers and exotic grasses appeared on both sides of the road. Some of them Han Li recognized, and there were also many that he had never seen before. It seemed that their medicinal age was not short.

Han Li was not in a hurry to identify and collect them. Following the path all the way inward, he came to a purple bamboo forest that was only a few hundred feet in size.

Purple smoke rose in the forest, and the spiritual energy was dense. He could vaguely see a two-story pavilion-like building. There was no trace of evil aura around it. It looked like a fairy residence, with a bit of immortal air.

Blue light flashed in Han Li's eyes, and he carefully examined the purple bamboo forest. Seeing that there were no restrictions inside, he stepped in.

After the two entered the bamboo forest, they walked hundreds of steps and saw a fenced courtyard in front of them. Pushing open the courtyard door, they saw a small pond in the courtyard, with purple smoke tumbling and rolling inside. In the center, there were also purple-golden lotus flowers planted.

"It seems that the core of this cave treasure is this pond and these purple-golden lotus flowers inside," Han Li said thoughtfully, standing on the edge of the pond.

"That's right, the foundation of this cave is here," Fellow Daoist Crab also nodded in agreement.

After saying that, the two walked along a purple bamboo arched bridge over the pond and came to the two-story pavilion on the opposite bank of the pond.

He saw that the pavilion as a whole was also constructed of purple bamboo, and the bottom foundation seemed to be planted on the ground. He could vaguely see some light purple roots. The outside of the building was covered with purple light, and at a glance, he knew that there were restrictions attached to it.

"This purple bamboo building is quite interesting. It borrows the power of the purple-golden lotus flowers in the pond and fuses with its roots. Once the restrictions are forcibly broken, the pavilion door may be opened, but it will definitely damage the foundation of this cave," Han Li said, retracting the blue light in his eyes and turning to Fellow Daoist Crab.

"That doesn't matter. As long as the Nine Spirits Soul-Seizing Technique is slightly modified, the pavilion restrictions can be opened without damaging the purple-golden lotus flowers," Fellow Daoist Crab said.

"Fellow Daoist Crab said it so easily, so you must be fully confident. Then I will trouble you once again?" Han Li said with a smile.

Fellow Daoist Crab didn't refuse, just nodded silently and began to activate the magic formula to break the restrictions.