Although the cassia seed medicine king in front of him has not yet grown to the realm of holy medicine, the seeds that bear it can also be used in medicine, and this random seed can be called a miracle medicine with an anti-heaven effect in the world, especially for eye problems.

Ye Feng took the seeds on this cassia seed medicine king, the seeds were black and brown with purple stripes, blooming with purple light, with a trace of refreshing and refreshing aura emanating out, and he could sense the rich essence of heaven and earth contained in it.

In the alchemy pavilion of the Huangtu Holy Land, there is a pill recipe of Tongming Dan, and the seed of the Cassia Medicine King on the pill is the main medicine, and there are some secondary medicines in addition to it, which are also indispensable.

Fortunately, the remaining secondary medicines in this elixir valley existed, and Ye Tu led Ye Feng and the others to pick the remaining secondary medicines, so that the medicinal materials for refining Tongming Dan were complete.

After collecting all the medicinal materials, Ye Feng and the others left the Elixir Valley, preparing to refine the Tongming Pill.

There is an alchemy master named Li Yuan in the Huangtu Holy Land, and he has been staying in the Huangtu Holy Land as an alchemist.

Ye Tu took Ye Feng and them to the Alchemy Pavilion and invited Li Yuan out.

Li Yuan looked to be over sixty years old on the surface, he had cultivated to a high level, and he was dedicated to cultivating on alchemy, so his alchemy attainments were extremely profound. His duty in the Imperial Atlas Holy Land is to be responsible for refining all kinds of pills, and what is important to him is the research and refining of the peerless pills, as for whether this holy land has changed hands and whether it has changed dynasties, he is concerned.

"Elder Li!" Ye Tu walked over and saw Li Yuanhou and said in a respectful tone.

In the past, Ye Tu had no less contact with Li Yuan when he was in the Imperial Diagram Holy Land, for example, when he came to the Alchemy Pavilion to receive the elixir, he had dealt with Li Yuan, so the relationship also seemed very familiar.

"Hehe, don't dare, now that you have ascended to the position of the Holy Lord, you will still call the old decay by his name in the future." Li Yuan said with a smile.

Ye Tu smiled, and he said: "Even if I take over the position of the Holy Lord, but Elder Li, you are worthy of me calling you Elder Li in terms of seniority and ability contribution." ”

"The junior Ye Feng has also seen Elder Li." Ye Feng stepped forward and spoke.

Li Yuan's eyes narrowed slightly, he glanced at Ye Feng a lot, and said sincerely: "The dragon among people is destined to rise into the air." I don't know what the little friend is doing with the old man? ”

Ye Feng smiled, and he said, "I heard that Li Lao's alchemy technique is unique, so I am naturally sure that Li Lao can refine a furnace of spirit pills for me when I come here." ”

"Oh? I don't know what the elixir to be refined by the Dao is? Li Yuan asked.

"Tong Ming Dan. My mother can't see in both eyes, and I need to be treated with the Bright Pill to treat my mother's eyes. Ye Feng said truthfully.

Li Yuan nodded, and he said, "Tongming Dan is not difficult to refine. Presumably you have already gone to the Elixir Valley to collect all the main and secondary medicines, right? However, the source of this alchemy water source is also very crucial. The water of the lower grade mountain spring, the liquid of the middle grade spiritual spring, and the liquid of the upper grade holy spring. If there is a high-grade water source, the level of this Tongming Pill will also increase. ”

After hearing this, the Holy Maiden of Yaochi on the side opened her mouth and asked, "Old Li, can the Holy Spring of Yaochi work?" ”

"What? Yaochi Holy Spring? It's a great source of water. This Yaochi Holy Spring definitely has a quality improvement for the refining of the elixir. Li Yuan's face was startled at first, and then he spoke.

"I happen to have the Yaochi Holy Spring here, so please ask Li Lao to use the Yaochi Holy Spring to refine the Tongming Dan." The Holy Maiden of Yaochi said, she took out a white jade porcelain vase and handed it to Li Yuan.

"Okay, okay, I will definitely refine a furnace of high-grade Tongming Dan." Li Yuan said.

Li Yuan took the white jade porcelain bottle containing the Holy Spring of Yaochi and walked quickly into the Alchemy Pavilion, and Ye Feng and the others followed in.

Li Yuan took over a purple jade color alchemy furnace, this is the famous purple jade furnace in the Huangtu Holy Land, it is an alchemy furnace, this purple jade furnace has been left in ancient times, and I don't know how many elixirs have been refined in the furnace, so the furnace is filled with a fragrance of elixir.

It is rumored that as long as this divine furnace is used to refine the elixir, it will improve the quality of the elixir by one or two, or even higher.

Li Yuan urged the Dao Fire of his own alchemy, and a blue flame formed, which was injected into the Purple Jade Divine Furnace with his control, and then he put the seeds of the Cassia Seed Medicine King and other secondary medicines into the Purple Jade Divine Furnace one by one, and poured the Yao Chi Holy Spring into it, covered the lid of the Divine Furnace, and began to manipulate the Dao Fire to refine the Pill.

The most important thing in alchemy is the control of the fire, the different stages of alchemy, the strength and weakness of the Dao fire, the control of the fire, etc., are extremely important, it is related to whether a furnace of pills can be refined, and whether the quality of a furnace of pills after refining is great.

Therefore, in order to become a qualified alchemist, it is not enough to be called an alchemist without countless alchemy experiences, and at least five years of alchemy experience is required to be qualified to become an alchemist.

Li Yuan has been interested in alchemy since he was a child, so he has been immersed in alchemy for fifty or sixty years, and he can be described as a high-level alchemist.

Even so, every time he made alchemy, he still took it seriously, refining the pill in a serious and rigorous spirit.

Refining this furnace Tongming Pill is no exception, he is very serious, urging his own Dao fire, controlling the size of the fire, always sensing the fusion of various medicinal materials in the purple jade divine furnace and so on.

Ye Feng stood aside, he looked at it seriously, and did not bother, but he had a sense of respect for Li Yuan in his heart.

He looked at Li Yuan's serious look, and couldn't help but think in his heart that the path of cultivation might not only be limited to blindly becoming stronger, but might also be reflected in other aspects. For example, Li Yuan's dedication to cultivating Dan is not another way of cultivating the Dao.

Everyone has a way to pursue, and what Li Yuan is pursuing is this way of alchemy.

Just thinking about it, Ye Feng suddenly smelled a wisp of strange fragrance on the tip of his nose, his heart was shocked, and after coming back to his senses, he looked at the purple jade divine furnace, and suddenly saw that the purple jade divine furnace at this moment had bursts of purple smoke rising up, which was extremely extraordinary, and it contained a refreshing and pleasant smell of strange fragrance.

Is Tongming Dan going to be refined?

Ye Feng thought secretly in his heart, but he noticed that Li Yuan's face was more serious and dignified at this time.

Call!

Suddenly, the purple Dao fire under the Purple Jade Divine Furnace turned into a red Dao Fire, and this red Dao Fire rose directly, actually enveloping the entire Purple Jade Divine Furnace.

After about half a minute, he heard Li Yuan shout softly: "Close!" ”

Li Yuan withdrew his hand suddenly, and the blazing red Dao fire turned into a drop of water in an instant, suspended under the purple jade divine furnace.

Gradually, the droplet-like Dao fire gradually went out.

Li Yuan's method of controlling the fire is simply amazing, and he can't accept it.

In an instant, wisps of sultry medicinal fragrance permeated the Alchemy Pavilion, all emanating from the purple jade divine furnace.

"Old Li, has this Tongming Pill been refined?" Ye Feng couldn't help but ask, feeling apprehensive and excited in his heart.

Li Yuan smiled and said nothing, he walked over and picked up the lid of the Purple Jade Divine Furnace, Ye Feng and the others gathered around to take a look, and they actually saw that there were two thumb-sized purple pills lying in this Purple Jade Divine Furnace, like two purple jade-like pills, and they were all Tongming Pills!