Han Li breathed a light sigh, extending his palm upwards and gently raising it.

The purple copper furnace, supported by an invisible force, floated gracefully upwards, suspended three feet above the ground.

Then, he opened his mouth and exhaled a ball of Infant Fire, which immediately surged forth like a cloud of fire, condensed but not scattered, enveloping the purple copper furnace.

With a "shua" sound, the ancient runes and flame patterns on the surface of the copper furnace lit up simultaneously, and the entire furnace body began to turn crimson red.

Seeing this, Han Li made a beckoning gesture with one hand, and the Candle Ling Grass floated up leisurely, landing in his palm.

The next moment, a bright cyan light shone from his palm, and a miniature cyan vortex slowly rose, emitting bursts of whistling sounds.

The Candle Ling Grass spun rapidly in the vortex in his palm, as if it had fallen under a stone mill, and was quickly torn and ground into powder by this force.

Accompanied by a soft sound, the purple copper furnace lid suddenly opened in the flames, and the powdered Candle Ling Grass immediately flew into it.

Han Li waved his hand, and the copper furnace immediately began to spin rapidly in the flames.

Time passed bit by bit, and a rich medicinal fragrance began to arise in the secret chamber.

Han Li kept his eyes fixed on the changes on the alchemy furnace, continuously adding spiritual medicines according to the records on the pill formula, while constantly adjusting the temperature of the Infant Fire.

After a full day and night, the firelight in the secret chamber gradually subsided.

With a "clang" sound, the purple copper furnace slowly landed on the ground.

Han Li stood up, walked to the alchemy furnace, gently waved his hand, and opened the furnace lid, and an extremely rich medicinal fragrance immediately filled the air.

He frowned slightly, leaning forward with a somewhat nervous expression, and looked inside the furnace.

Inside the alchemy furnace was a patch of black, with only a layer of unformed medicinal powder, without a single pill in sight.

Unsurprisingly, the first batch of pills had completely failed.

Han Li reached out and grabbed a bit of the medicinal powder from the copper furnace, carefully grinding it in his palm for a moment, then brought it to his nose and sniffed it lightly, vaguely understanding what had happened.

He was afraid that the heat had not been controlled properly, so that when the pills were condensing, the temperature was not high enough, ultimately leading to the failure of the refining.

After understanding the reason, he was not annoyed, and after resting for half a day, he began the second refining.

…

A dozen days passed in a row.

Inside the secret chamber, nine small piles of black powder were piled on the ground in front of Han Li, looking very much like nine drum-shaped graves.

He had failed in nine consecutive attempts at refining pills.

Although he had been mentally prepared for this, the continuous nine failures, most of which were due to poor control of the heat, could not help but make him feel a bit frustrated and depressed.

He had previously thought that as long as the fire was increased when the pills were condensing, he could ensure the pills would form, but the result was that as soon as the pills condensed, they would disintegrate into powder again due to the excessive temperature, still the charred kind of carbon powder.

Therefore, after the ninth failure, Han Li did not continue refining, but stopped and carefully considered the countermeasures.

The timing of pill condensation was fleeting and too short. It was almost impossible to grasp the key to the changes in heat for a while. According to this situation, it was estimated that he would have to experience at least a dozen more failures before he could gradually find a clue.

From this, it could be seen that the high value of Earth Alchemists was also reasonable, after all, each of them was supported by a mountain of gold and silver, bit by bit.

But the problem was that he did not have so many medicinal materials for him to try. If he failed again, all the high-grade spirit stones he had spent before would be completely wasted.

But how could he grasp this fleeting opportunity?

Han Li gently rubbed his eyebrows, and suddenly, a flash of inspiration, a strange look in his eyes.

He made a hand gesture with both hands, and the sound of chanting rang out in his mouth. With a buzzing sound behind him, a faint golden round wheel of about a foot in size emerged, which was the Mantra Treasure Wheel.

On the Treasure Wheel, fourteen semi-transparent Time Dao patterns flickered with incomparable agility, emitting a strange law fluctuation from it, and the air flow in the entire secret chamber became slow.

With a thought in his mind, Han Li controlled the influence range of the law fluctuation within a foot in front of him, so as to minimize the consumption of immortal spiritual power as much as possible.

Then he opened his mouth and spat out a ball of Infant Fire, which lifted the purple copper alchemy furnace and slowly rotated it in mid-air.

The speed of the flames rising around the alchemy furnace also slowed down a lot. Han Li could even see the trajectory of each inch of flame swaying, and the red patterns on the alchemy furnace lighting up little by little.

He began to control the spiritual medicine, turning it into medicinal powder, and then adding it to the furnace for refining.

The whole process was slowed down more than three times under the influence of the Mantra Treasure Wheel.

At the same time, the changes of the spiritual medicine in the furnace also became slow, so that Han Li could see everything very clearly through the Bright Clarity Spirit Eyes.

Some of the things that were not very clear before were now clear.

Seeing this situation, Han Li immediately put away the Mantra Treasure Wheel, after all, it was not affordable to maintain the operation of this wheel, even if it was only a foot in range. He had already basically grasped those key moments of condensing pills. As long as he urged the Treasure Wheel around these moments, it should help him seize some fleeting opportunities.

Time passed bit by bit, and the refining process, which originally took a day and a night, was lengthened by nearly a double. Han Li seemed to have re-refined the Unified Origin Pill several times. The insights and understandings he gained were more than the previous nine times combined. Especially in controlling the heat when condensing pills, it also became much easier.

As the flames outside the furnace slowly subsided, Han Li moved his mind and retracted the Mantra Treasure Wheel into his body again.

He waved his hand and summoned the alchemy furnace to his front, waved his hand to open the furnace lid, and poured out the contents of the furnace with some trepidation and expectation.

A burst of lead-black dust fell from the furnace mouth with a "簌簌" sound. Then, the sound of pills rolling inside the furnace wall rang out.

Han Li was immediately overjoyed, turned the entire alchemy furnace over, and reached out to catch it.

Seven or eight longan-sized, round, light golden pills rolled out of the furnace and fell into his hand.

According to the records on the pill formula, the number of pills in a successful batch of Unified Origin Pills should be between fifteen and sixteen. From this, it can be seen that Han Li's refining of pills this time was still not completely successful.

However, Han Li was very satisfied with this. After all, he originally intended to use these ten times of refining pills as experiments. Therefore, it was not easy to accumulate experience to do so.

Moreover, with the help of the Time Wheel, the success rate of refining this pill in the future will also be greatly increased.

He looked at the pills in his hand again and again, and then took out a porcelain bottle to store them. Finally, only one pill remained, which he picked up and put in his mouth, and then closed his eyes slightly and practiced the Mantra Wheel Transformation Scripture.

Whether this medicine is successful or not still needs to go through this final test.

…

Two months later, a cyan figure descended from the sky above the spiritual fields below Crimson Cloud Peak, revealing Han Li's figure.

The pills he had previously refined had excellent effects, so he had been staying in the secret chamber, taking pills while continuing to cultivate. The speed had obviously increased, and he had only left the seclusion today.

In the spiritual fields, Sun BuZheng and others were busy inside.

Meng YunGui had already returned and was also busy there.

Most of the spiritual fields near Crimson Cloud Peak had been cleaned up, and the neat rows of fields were quite spectacular.

After the fire miasma receded, not only did the climate recover, but the spiritual field veins here had also returned to normal, no longer only able to grow fire-attribute spiritual materials as before.

Han Li nodded secretly. The spiritual fields here were close to the main spiritual vein of Crimson Cloud Peak, and the spiritual power was quite abundant. Growing some spiritual medicines should grow quite quickly.

He landed silently, and Meng YunGui and others did not notice. After all, he did not hide his tracks, and he was soon discovered by one person.

"Elder!" the man hurriedly saluted.

Others heard the sound and immediately saw Han Li in mid-air, hurriedly put down their work and saluted together.

"Elder Li, you're back." Meng YunGui, Sun BuZheng and others had been with Han Li for so long that they roughly knew something about Han Li's temperament, and their speech was no longer consistently rigid.

"Well, I just came back and came to see. You continue to work. Meng YunGui, come with me." Han Li waved his hand, letting everyone continue to work, and turned to fly towards the mountain.

Meng YunGui agreed and followed.

A moment later, the two arrived at the cave dwelling.

"I've made you run around for me these years. It's been hard on you. How's the harvest?" Han Li said directly without talking nonsense.

"Elder Li, where are you talking? Being able to work for you is a great honor for this disciple, so I don't think it's hard at all. By the way, this is the harvest of these years. Please take a look, Elder." Meng YunGui said quickly, and then took out a storage magic tool and handed it to Han Li respectfully.

Han Li took the storage magic tool, and his divine sense entered it.

After a moment, a surprised look appeared on his face, and he nodded and said, "Well done."

He originally asked Meng YunGui to look for spiritual medicine seeds, but it was only a temporary whim, and he did not have much hope.

After all, Meng YunGui's cultivation was too low, and the level he could reach was limited.

But Meng YunGui's harvest was far beyond his expectations. Each of the seeds he found was quite extraordinary. Among them, there were many auxiliary medicines needed for the Unified Origin Pill he had refined before. If these seeds were planted, he could save a lot of spiritual stones when refining the Unified Origin Pill in the future.

In addition, he also found several unfamiliar seeds among them, which looked like stones, and the surface was distributed with many granite-like textures, but faint traces of life could be clearly transmitted from them.

"Elder Li, you are too kind. I was just lucky." Meng YunGui said modestly, but he couldn't help but show a look of joy on his face.

Han Li pondered for a moment, waved his hand and took out some seeds and handed them to Meng YunGui. Some were found by Meng YunGui, and some were from himself.

"You plant these seeds in the spiritual fields at the foot of the mountain and take good care of them." he said.

"Yes, this disciple understands." Meng YunGui took the seeds and said.

"Also, don't slack off in looking for seeds. Continue to do so. This magic weapon will be given to you for self-defense." Han Li took out another storage bag and handed it to Meng YunGui, and ordered.

"Thank you, Elder! Please rest assured, YunGui will definitely live up to his mission." Meng YunGui immediately agreed, and then turned and left.

Han Li stood in place for a moment, turned and came to the medicine garden in the cave dwelling.

He took out several seeds, some shaped like earthworms, some crystal clear like jade, like jade beads, and some the size of peas, with uneven surfaces, looking like a small clod of earth at first glance.

These seeds were some of the auxiliary spiritual materials needed for the Unified Origin Pill and the Spring Rain Pill.

Han Li carefully planted these seeds, watered them with spiritual liquid, and stopped after being busy for half a day.

Looking at the gradually expanding medicine garden, Han Li couldn't help but show a slight smile.

Then, he summoned the Giant Ape Puppet and told it to take good care of these newly planted spiritual seeds, and then turned and left the spiritual medicine garden.