Inside the secret chamber.

Han Li's body shuddered slightly, and then he found himself back in the real world once again.

As the crystalline wall in front of him gradually dissipated, the True Eye on the Treasure Wheel of Time also slowly closed, and the Dao patterns on the wheel became dim and lusterless once more.

Han Li retracted his single-handed incantation, and took away the Treasure Wheel of Time, the Purification Bottle of Time, and the golden sand that filled the sky, a pensive look on his face.

After a while, he raised his hand and wiped his cheek, and the "Long Wu" mask emerged.

He formed a hand seal with both hands, and then entered the No Constancy Alliance's transaction system, skillfully posting mission information to purchase various materials for the preparation of auxiliary medicinal liquids for the Nine Serenities Devil Eyes cultivation.

After completing the posting, a light shone on his right middle finger and index finger, and flower patterns emerged. A burst of silver light shot out, creating a silver light gate about ten feet high in front of him.

With a flicker of his body, he flashed into the gate and went straight to the outside of the spirit herb garden.

The medicinal fields were now full of spiritual energy, and more than a dozen giant ape puppets were still busy at their respective tasks. The newly opened medicinal field area had been expanded considerably.

Han Li slowly entered along the ridges of the fields, and saw that the spirit herbs planted earlier had basically adapted to the environment inside the garden. Only a few of the inherently precious spirit herbs had leaves that were slightly scorched, appearing somewhat wilted.

After summoning a giant ape puppet, he flipped his hand and took out a jade bottle, handing it to the puppet and instructing it to drip a drop on these scorched spirit herbs every half month.

After giving the instructions, Han Li continued to walk slowly inward, arriving at the area where the Far-Sight Grass was planted.

The age of the Far-Sight Grass planted here was basically over tens of thousands of years, which was suitable for preparing spiritual liquid.

However, according to the "Nine Serenities Devil Eyes" scripture, the longer the age of various medicinal materials, including the Far-Sight Grass, the better, and the more effective the auxiliary medicinal liquid that was refined.

Han Li took off the dark green small bottle from his chest, shook it slightly, and then tilted the mouth of the bottle to pour it towards the Far-Sight Grass.

A drop of emerald green spiritual liquid dripped down in mid-air, and just as it was about to fall, Han Li flicked his finger in the air, causing it to explode into a cloud of glittering mist, which was evenly sprinkled on the seven or eight Far-Sight Grass below.

Han Li silently watched the glittering droplets, like morning dew, covering the leaves of the Far-Sight Grass, and after pondering for a moment, he continued to walk towards the depths of the herb garden.

In a corner of the inner garden, there was a patch of purple-black spirit fields resembling a swamp. The Dao Soldier Mother Beans growing inside had grown a lot, shrouded in a purple mist that flickered with electric light, appearing somewhat blurry.

However, checking the aura emanating from them, there were no abnormalities.

Going further into the inner garden, most of the spirit fields were newly opened. Although they had been watered with spiritual liquid and had undergone maintenance and transformation, they still appeared somewhat empty because no spirit herbs had been planted yet.

"Fellow Daoist Han, please forgive me for being presumptuous..." At this moment, a voice suddenly came over.

Han Li turned around and saw Mo Guang walking towards him along the spirit herb fields.

"Fellow Daoist Mo Guang, please speak freely," Han Li said.

"Although the treasure of a cave heaven can have the circulation of heaven and earth spiritual energy, it is, after all, different from the true void of heaven and earth, and it ultimately has its limits. Once too many spirit herbs are planted, exceeding the limit that this place can bear, the circulation of the cave heaven spiritual energy will be unsustainable, which may cause the spiritual energy to decay and the cave heaven to wither," Mo Guang said.

"I have already considered this point, and I am going to add some restrictions to the cave heaven this time," Han Li nodded and said.

"Fellow Daoist Han is always meticulous in his work, and I was overthinking it," Mo Guang said with a smile.

"Fellow Daoist Mo Guang's kindness is appreciated, how could I not know? I removed some baleful aura earlier and collected it. I was originally planning to go to the bamboo building to give it to you later, but I didn't expect you to come over first," Han Li said, raising his hand and tossing it.

A black storage bag drew an arc in the air and fell into Mo Guang's hand.

"Then thank you, Fellow Daoist Han," Mo Guang said, a look of surprise on his face after a brief investigation.

"It's nothing, let's go back to the bamboo building first," Han Li said, waving his hand.

The two arrived at the pond in front of the Purple Bamboo Pavilion. Mo Guang said that he wanted to continue cultivating and returned to the building first.

Han Li walked around the edge of the pond alone for two laps, taking out round stones engraved with runes at some special locations and throwing them into the water, occasionally splashing ripples.

After throwing all the suppressing formation stones, he turned his wrist and took out a Green Bamboo Cloudflight Sword, carefully carving around the pond's ground. Each time the sword moved, it carried the undying sword energy containing immortal spiritual power, deeply piercing the ground.

Before long, a huge and complex rune formation pattern appeared around the pond.

Seeing this, Han Li exhaled a long breath, turned his wrist, and put away his long sword. A light flashed in his palm, and a transparent crystal stone appeared. The immortal spiritual power contained within this stone was almost solidified, and it was actually a middle-grade immortal essence stone of extremely high quality.

He clenched the crystal stone in his palm, frowned slightly, and a trace of reluctance flashed in his eyes.

But without hesitating for long, he straightened his body, raised his palm, and threw the middle-grade immortal essence stone out.

It drew an arc in the air and fell into the bottom of the purple-golden lotus flower with a "thud," and then disappeared.

Immediately afterward, a sound of boiling water came from the pond. One after another, large bubbles emerged from under the purple-golden lotus flower, all bursting with a "glug."

Strands of浓郁 purple mist rose from the bursting bubbles, filling the entire pond and submerging even the purple bamboo arched bridge spanning it.

Han Li felt an invisible breeze rising from the center of the pond, blowing in all directions. When it brushed against his face, there was a rich flow of spiritual energy, making him feel refreshed and invigorated.

After standing by the pond for a moment, Han Li's figure suddenly flashed and disappeared from the spot.

Almost at the same time, his figure reappeared in a corner of the "Flower Branch" Cave Heaven, flipped his hand and took out a formation plate that had been refined long ago, installed an ordinary immortal essence stone on it, and buried it deep underground.

After that, his figure flashed one after another, constantly appearing in various corners of the "Flower Branch" Cave Heaven, burying formation plates inlaid with immortal essence stones deep into the ground.

When all the formation plates landed, like a game of chess laid out long ago, the entire cave heaven formation finally took shape.

A metallic tremor sounded with a "buzz"!

Within the entire cave heaven, lights lit up one after another, all the formation plates operating simultaneously, turning into beams of light that shot straight into the sky.

In the center of the pond at the Purple Bamboo Pavilion, the purple-golden lotus flower bloomed with light. Adjacent to it, a flower bud the size of a fist suddenly emerged, and with a flash of golden light, it also bloomed.

"Willing to part with a middle-grade immortal essence stone to exchange for a pair of lotus flowers blooming on one stem, Fellow Daoist Han is truly skillful. For at least a hundred years, you don't have to worry about insufficient spiritual energy in this cave heaven," Mo Guang said, standing in front of the window on the second floor of the bamboo building, looking at the scene in the pond below, his lips slightly curled up in admiration.

Han Li smiled slightly, ignoring what Mo Guang said, and was quite satisfied with the changes in spiritual energy within the "Flower Branch" Cave Heaven.

About a quarter of an hour later, all the abnormal sounds in the cave heaven gradually disappeared.

After Han Li checked the cave heaven in all directions to make sure everything was in order, he returned to the secret chamber.

Having delayed for a long time in the "Flower Branch" Cave Heaven, it was already late at night when he returned. A beam of bright moonlight fell from the round hole in the dome of the secret chamber, illuminating him.

After Han Li silently looked for a moment, he took off the dark green small bottle from the front of his chest and placed it in the moonlight.

……

Spring passed and winter came, and Idle Cloud Valley experienced the four seasons like the secular world. More than thirty years passed in the blink of an eye, and the valley was still as peaceful as ever.

During this period, Han Li gradually purchased various materials for preparing auxiliary medicinal liquid from the No Constancy Alliance, planted them in his spirit herb garden, and slowly matured them with the small bottle of green liquid.

The age of several major spirit herbs, including the Far-Sight Grass, had reached a level far higher than required in the secret technique under the催熟 of the green liquid, making the grade of the spiritual liquid refined by Han Li far exceeded the best condition mentioned in the secret technique.

At this moment, he was sitting in the secret chamber, meditating and adjusting his breath.

It was midnight, and all the lights in the secret chamber were extinguished, the surroundings were pitch black, and only a beam of clear and cold light about the thickness of a child's arm was projected from the hole in the dome.

By the light of the moon, one could see in front of Han Li, there was an open-mouthed, thin-necked white jade porcelain bottle, which contained a little light purple crystal liquid, reflecting shimmering waves of light.

At this moment, Han Li suddenly opened his eyes, and the Bright Sight Spirit Eyes began to operate, with two bright blue lights lighting up in his pupils.

He formed a hand seal with both hands, and a light shone all over his body. Pieces of purple-gold scales grew out of the skin on his body, and the majestic immortal spiritual power in his body was continuously transformed into pitch-black demonic energy, which scattered out from the gaps between the golden scales.

Han Li silently recited the incantation of the Nine Serenities Devil Eyes secret technique, and his hands formed hand seals quickly, raising his finger and wiping it towards the mouth of the porcelain bottle on the ground.

A piece of light purple liquid flew out from the mouth of the bottle, and as his finger slowly slid in the void, it was guided and sprinkled into his eyes.

As the crystal liquid flowed into his eyes, Han Li immediately felt a burst of intense burning sensation in his eyes. He subconsciously wanted to close his eyes, but he still endured it with his strong willpower.

Washing the eyes with the prepared medicinal liquid is the first step in cultivating the Nine Serenities Devil Eyes, and it is also a very important step. It is like cultivating body tempering, which is used to lay the foundation for future cultivation.

Han Li's eyes were wide open, and tears flowed silently from the corners of his eyes, but they were mixed with some turbid impurities that could not be seen normally, leaving 淡白 marks on his cheeks.

After repeated washing, the blue light in his eyes became weaker, but it appeared more transparent and clear. There were many tiny bloodshot eyes at the edge of his eyes.

At this time, the hands that he was forming the seal suddenly changed, and he turned his hands upwards, raising one finger each and pointing it towards his eyes.