The necromancer finally handed over the key to Ye Feng.

After Ye Feng got the key, he successfully entered the Third Heaven of the Holy Emperor Diagram!

In the third day, Ye Feng saw one majestic hall after another in the void clouds, one of which had an extremely strong aura, Ye Feng knew that the people in the hall must be the guardians of the third level.

With a whoosh, Ye Feng flew into the main hall, and through the main hall, he came to a courtyard full of flowers and plants, and he saw an old man in purple in the courtyard. The old man was squatting on the ground planting flowers, and there was another person beside the old man, a little girl in purple!

This little girl was none other than the Purple Gold Spirit Ginseng who was in the Heavenly Desolate Domain's Spirit Void Cave at the beginning! At the beginning, Ye Feng and Gu Niannu helped her choose a name, called Ziyan.

"Could it be that this is the person who took Ziyan away in the first place?" Ye Feng's eyes flashed.

At this time, Zi Yan suddenly turned her head to look at Ye Feng, and pouted, "Brother Ye Feng, you are finally here, I am almost suffocated to death in front of these flowers all day long!"

Ye Feng smiled, "You're not the only one here. ”

As soon as Zi Yan wanted to speak, the old man in purple suddenly laughed: "This little girl has been clamoring to go out all day, but fortunately you came." As he spoke, the old man stood up and turned to look at Ye Feng.

Ye Feng also looked at the old man, the old man had a childish face, kind eyebrows and kind eyes, and always had a little smile on his face.

"Young man, the lion master has already said to the old man, if you really come to the third heaven, the old man will teach you alchemy. The old man smiled and said, "The old man should remind you first, if you can't endure hardship, it's best not to agree to learn alchemy from the old man." ”

"Old-timer, you can rest assured. Ye Feng smiled.

"Okay, you can come with the old man. The old man smiled and walked slowly into the depths of the courtyard, followed by Ye Feng and Ziyan.

On the way, Ye Feng learned that the old man was actually called the old man of purple ginseng, and like Zi Yan, her body was purple gold spirit ginseng, and she was born to control the flames.

Soon, the old man of purple ginseng took Ye Feng to a room full of medicinal herbs, and asked Ye Feng with a smile: "The way of alchemy, the most basic thing, lies in the cognition of medicinal herbs, if you can't even understand the characteristics of medicinal herbs, how can you talk about alchemy?"

Ye Feng nodded, an alchemist, the most important and basic thing is to understand the characteristics of medicinal herbs.

"There are thousands of medicinal herbs in the world, and some alchemists have spent their entire lives only recognizing a small part of them. The old man said: "One of the most common fire-attribute herbs, the fire leaf flower, and another of the most common water-attribute herbs, Water Lingzhi, will have several changes depending on the amount ratio. The ratio of other herbs with complex medicinal properties is even more ever-changing!"

"Grandpa, is alchemy really that complicated?" Zi Yan blinked and looked at the old man with purple ginseng.

"Hehe, if it's not too difficult, aren't there alchemists everywhere in the world?" the old man stroked his beard and laughed.

"Senior, there are many records about medicinal properties in the classics that Master Shi gave me, and I have already written down a lot of ......" Ye Feng rubbed his nose and smiled awkwardly: "It's just that I haven't had time to try the medicinal properties myself." ”

"The third heaven has medicinal herbs, so you can use the herbs in this herb room to try the medicinal properties first. The old man with purple ginseng smiled.

Ye Feng nodded.

The old man with purple ginseng looked at the herbs on the medicine shelf not far away, and said with a smile: "The herbs in the bottom layer are cold flame grass, and the top layer is dragon tongue vine, how many changes will be born between them?"

"Seventy-three!" Ye Feng replied without hesitation.

"It's not enough to just know, you have to match all these seventy-three changes! I want you to match whichever change, you must match which change, otherwise I will prepare them into Long Yansan and let you eat them!"

Long Yan San, which is a kind of medicinal powder prepared with Cold Flame Grass and Dragon Tongue Teng, belongs to one of the seventy-three changes after the combination of two medicinal materials. The dragon flame is extremely intense, and once it is consumed, it is enough to burn through the internal organs of the martial artists of the Mixed Yuan Realm.

Even if a Vientiane Realm martial artist takes it, it will be very painful!

Ye Feng swallowed his saliva, he finally knew why the old man of purple ginseng said that to learn alchemy with him, he must be able to endure hardships.

"Let's start......" The old man of Purple Ginseng smiled, "I'll give you three chances, and after three chances, you must match the Cold Eclipse Powder!"

Cold erosion powder is also one of the seventy-three changes after the combination of two medicinal herbs.

Ye Feng took a deep breath and took the Cold Flame Grass and Dragon Tongue Teng from the medicine shelf, and then he used the devouring qi to devour a few fire attribute primordial stones, and then, he opened his palm, and a flame appeared in his palm.

The old man's eyes flashed, and he said in his heart: "What the lion master said is right, this son can really use the Dao seed to transform the fire attribute yuan stone into the flame used in alchemy. ”

At this time, Ye Feng had already put the two herbs into the Demon Ding, and then wrapped the flames with the Heaven and Earth Yuan Qi to calcine the herbs to fuse the medicinal properties of the two herbs. The whole process is very important to control the flame temperature and calcination time, and if there is a slight error, the desired change in medicinal properties cannot be obtained.

Not long after, the two herbs in the Fu Demon Ding fused together and turned into a purple-black medicinal powder.

The old man with purple ginseng sneered, "You've wasted an opportunity!"

Ye Feng took a deep breath and released his soul thoughts, and this time, he wrapped the flames with his soul thoughts!

Compared to using Heaven and Earth Yuan Qi to indirectly control the flames, the Soul Mind could more accurately control the temperature of the flames and the time for calcining the herbs, which was incomparable to other alchemists.

The other soul masters who became alchemists basically used the fire attribute formation to alchemy.

Ye Feng's choice is more than that of ordinary soul masters, the first way, he can use the Devouring Dao Seed to devour the fire attribute Yuan Stone, so that the power of fire is generated in the body, and the second way, he can use the fire attribute formation.

He was not proficient in the powerful fire attribute formation, so he chose the first method. The fire attribute formation he has now is just the human-level formation fire array that Gu Niannu transmitted to him at the beginning, and the power of the flame is not great, not as good as the flame generated by the first method.

After wrapping the flames in his soul thoughts, his control over the flames was noticeably stronger, but this time he still failed.

"You have one last chance. The old man said.

"Brother Ye Feng, if you fail, you have to eat Long Yansan!" Zi Yan laughed.

Ye Feng took a deep breath, sat cross-legged on the ground, and suffocated to recall the process of refining medicine powder just now, and it was a long time before he started refining medicine powder again.

This time, he had finally succeeded in refining the Cold Eclipse Powder, and he couldn't help but laugh.

"Don't be too busy rejoicing, it's just one of the changes. The old man with purple ginseng smiled and said, "Next, refining Long Yansan, you only have two chances!"

Ye Feng looked at the old man with purple ginseng deeply, and said secretly: "Count you hate!"

"Let's get started......"

As the old man's words fell, Ye Feng began to dispense medicine again.

This time, he actually succeeded in the first attempt!

The old man's face changed slightly, and he said in his heart: "Hasn't this kid really prepared the medicine powder by himself?"

"Senior, what's next?" Ye Feng asked.

The old man with purple ginseng spoke of a change again.

Ye Feng once again made it out at one time.

In the next few hours, Ye Feng actually matched all the changes, and they were all one-time successes.

The old man of purple ginseng took a deep breath and praised in his heart: "Master Lion is not mistaken, this son is really an alchemy wizard!"

Next, the old man with purple ginseng kept asking questions, and Ye Feng kept solving them.

The herbs in the herb room are constantly decreasing, all of them have been prepared into medicinal powder by Ye Feng, and after the training of the old man with purple ginseng, he already has a deep understanding of the ratio between herbs and herbs.

Immediately after, the old man with purple ginseng began to ask Ye Feng to prepare three herbs.

A day later, the old man with purple ginseng increased the difficulty again, and as time went on, the difficulty became more and more difficult.

Ten days later, Ye Feng finally walked out of the herb room.

In the past ten days, he has failed more than many times, and during this period, he has been punished several times by the old man of purple ginseng, and each time he is worse than dead.

The old man with purple ginseng and Zi Yan also walked out of the herb room, only to hear the old man with purple ginseng say slowly: "There are some changes between the combination of herbs, you need to deduce according to the simplest changes, these old men have already taught you just now, you must practice more in the future!"

"Seniors don't worry, juniors will!" Ye Feng said.

"As for the art of fire control, the art of quenching medicine, and the art of becoming a pill, it takes a long time to master these...... You come with the old man, and the old man personally refines the pill once, and how much you can understand depends on your creation. The old man said as he walked towards another room not far away.

Ye Feng and Zi Yan followed.