Inside the cave, Zhang Chu began to alchemy.

Yeyan and Bai Yan gave Zhang Chu a hand, and a copy of the materials of the Shenglong Pill was placed in Zhang Chu's hand.

Ye Yan, Bai Yan, the hot pot was completely quiet, for fear of disturbing Zhang Chu.

Zhang Chu calmed down and adjusted his state.

Soon, Zhang Chu took a deep breath, put the fuel into the furnace, and patted his hand lightly.

Call!

Behind the Dan furnace, a mysterious purple flame burned.

Zhang Chu slowly closed his eyes and felt carefully, this flame was completely different from the flame he had when he was alchemy in the outside world.

The same is charcoal, the charcoal flame here is even hotter, and even, there is some mysterious power hidden in the flame.

"It seems that this heat needs to be carefully adjusted." Zhang Chu thought in his heart.

At this moment, Zhang Chu's divine soul was completely in communication with the flames in the Dan furnace.

Fire control, this is the first step of alchemy, after all, it is a different fire, and Zhang Chu needs to get used to it for a while.

A few minutes later, Zhang Chu's divine soul was finally able to completely control the flames inside the Dan furnace.

At this moment, Zhang Chucai spoke: "King Kong Fruit! ”

Ye Yan hurriedly handed the prepared medicinal herbs to Zhang Chu.

After the first medicinal herb entered the Dan furnace, Zhang Chu was suddenly slightly stunned: "Huh? ”

"What's wrong?" Yeyan asked in a low voice.

Bai Yan hurriedly poked Ye Yan: "Shh, don't speak, you can't be disturbed when you are alchemizing." ”

Zhang Chu didn't pay attention to Ye Yan, but he did feel that something was wrong.

During the alchemy in the outside world, after the vajra fruit enters the Dan furnace, the medicinal power will gradually dissolve under the scorching flame, and many medicinal powers will seep out on the skin of the vajra fruit.

But this time it's different.

This time, the vajra fruit had just entered the Dan furnace, and the medicinal power was like explosives, and it exploded directly in the Dan furnace.

Of course, with Zhang Chu's control over the flames, the Dan Furnace would definitely not explode, but the medicinal power in the Dan Furnace was surging and abnormal, and it was difficult to control.

Even Zhang Chu felt powerless.

"My God, how do you feel that refining the Ascending Dragon Pill with this kind of pill is as difficult as the four-grade pill?" Zhang Chu muttered in his heart.

In fact, Zhang Chu's alchemy technique has been certified by the heaven and earth of the second-grade pill, but it does not mean that Zhang Chu is only a second-grade pill master.

Strictly speaking, Zhang Chu is actually a four-rank Dan master.

Because according to the standards of the alchemy world, as long as you can refine the four-rank pill once, then you can count it as a four-rank pill master.

Although Zhang Chu had never refined the four-pin pill, the fragment of the divine soul that Zhang Chu devoured in the alchemy space before had really refined the four-pin elixir.

Therefore, Zhang Chu was very familiar with the difficulty of refining the four-pin pill.

At this moment, only one pill was put into the furnace, which already made Zhang Chu feel difficult.

However, Zhang Chu did not give up, but wholeheartedly controlled the Dan furnace and restrained the medicinal power in it.

After about ten minutes, Ye Yan couldn't wait, she whispered to Bai Yan, "Huh? Why did you wait so long and still don't want a second herb? ”

Bai Yan also frowned and was puzzled: "I remember, the last time I refined the Ascending Dragon Pill, it didn't take so much effort. ”

Of course, the two sisters' voices were very small, and it did not affect Zhang Chu.

Finally, Zhang Chu spoke: "Long Xulan! ”

This time, Bai Yan hurriedly handed another herb to Zhang Chu.

More than ten minutes passed.

Zhang Chu reluctantly added four flavored medicinal herbs to it, but at this moment, Zhang Chu finally couldn't control it.

With a pop, the flames suddenly burst out from the Dan furnace.

The flame was so fierce that it was like a fire dragon, and it burned towards the tail of the hot pot.

Call......

The flames shrouded the tail of the hot pot.

"Woohoo!" Hot pot jumped up in fright, hurriedly dodged, and hid behind Yeyan with his tail down.

Then, the hot pot thief looked at Zhang Chu awkwardly, his face full of fear.

However, Zhang Chu's Dan furnace suddenly smoked, the fire was directly extinguished, and all the medicinal power was lost.

Zhang Chu sighed and shook his head: "Hey, no......"

Ye Yan was a little disappointed: "The medicinal materials here, can't they be alchemy?" ”

Zhang Chu nodded: "Yes, the medicinal materials here have very strange medicinal properties, and they are very different from the outside." ”

"Forget it, let's not bother with that, we don't have to pick herbs." Yeyan said.

Zhang Chu muttered: "But I always feel that the medicinal materials here are more sufficient, and it stands to reason that it should be easier to refine the pill." ”

"Try again?" Bai Yan asked Zhang Chu.

Zhang Chu shook his head: "No, I have to think about it carefully." ”

He wanted to reminisce about the feeling of alchemy just now, and want to understand what the problem was.

Otherwise, it will not work if you waste medicinal materials vigorously.

At this time, Bai Yan said: "Then let's sleep first, maybe we can sleep for a while, and we can think it out tomorrow." ”

Yeyan also said: "Yes, after a tired day, it's time to rest, and when you are full of rest and your brain is active, you will think of it at once." ”

Zhang Chu felt that what the two of them said was very reasonable.

So, Zhang Chu temporarily put the Dan furnace aside, left it alone, and then slept with them in his arms.

Next to it, the hot pot was guarding the bonfire, very depressed:

"Hey, in the past, I always joked that my grandfather couldn't find a woman, but now it's okay, people have fun."

"This is the real dog abuse......

The bonfire is very vigorous, with three flames, and constantly makes all kinds of strange sounds.

The night passed quickly.

Early the next morning, Zhang Chu pushed Bai Yan who was lying on his lap away, and found that the hot pot was lying next to the fire and had not woken up yet.

So, Zhang Chu came to the Dan furnace alone and thought about the medicinal properties of these herbs again.

At this moment, Zhang Chu suddenly felt that two soft balls pressed on his back.

You don't have to guess Zhang Chu to know that it's Yeyan.

This one who is a sister is much more generous than her sister.

Sure enough, Ye Yan's voice came from Zhang Chu's ears: "How is it?" Have you researched it? ”

Zhang Chu shook his head slightly: "If you just think about it, you still can't think of it......"

"In this way, let's collect some low-end medicinal materials during the day, I look at the valley, there are many low-end medicinal materials, I will use the low-end to study it first."

In this valley, common herbs such as motherwort, large green leaves, and nightshade are growing one by one.

Before, Zhang Chu disliked this kind of thing and was relatively low-end, so he didn't collect it.

But now, Zhang Chu needs to use them to understand the properties of medicine.

When Bai Yan and Ye Yan heard this, they immediately said, "Okay! ”

After a little breakfast, the three of them reappeared on the hillside in the valley with hot pot.

Not only is there plenty of medicinal herbs, but it also has a wide view, and you can see the place where Taniguchi's white apes are stationed from here.

However, Zhang Chu and the others did not plan to go to those white apes for trouble, and taught them a lesson, and they would be fine in the future.

This time, Zhang Chu and the others collected medicinal materials much faster, and large tracts of ordinary medicinal materials were loaded into the Star Tower by Zhang Chu.

It was only noon, and Zhang Chu felt that those medicinal materials were enough.

At this moment, Ye Yan suddenly pointed to the white ape station in the distance and shouted, "Zhang Chu, look, there are people!" ”