The shadow of the bark outside the tree hole is mottled and tangled, as if it were real.

The Four Elephants Circle is working well.

Xu Mu's purpose in doing this is very clear.

The low-lying land, the spiritual milk of the earth, sooner or later there will be a battle!

He wanted to use Qi Huanzhang's "gift" of his cyan pill furnace to refine the Realm Breaking Pill!

In the face of that unknowable opportunity to become an immortal, when it comes to competition, there will inevitably be fights!

If you can't fight the enemy too late, you can use the powerful medicinal power of the Realm Breaking Pill to forcibly improve your cultivation, so as to win more opportunities!

It's just that, until now, he doesn't know what the chance to become an immortal is!

Earth Spirit Milk?

Return to the ruins of the divine book?

Or, in the depths of the Xuantian Secret Cave, which is rare to enter once in 600 years, there is something else?!

Xu Mu took a deep breath and took out something from the storage bag that was shining with ice blue aura again.

Blue Rank Spirit Stone!

At present, his spirit stone inventory has more than 1,500 purple-rank spirit stones and nine blue-rank spirit stones.

A blue-rank spirit stone has a hundred times the energy content in it that of a purple-rank spirit stone.

If it is calculated according to the proportion, it can be exchanged for one hundred purple-rank spirit stones.

However, when exchanging between markets, blue-tier spirit stones usually appear at a premium.

One blue-rank spirit stone can be exchanged for at least one hundred and ten purple-rank spirit stones!

The reason is that the energy contained in the Blue Rank Spirit Stone is more refined, and the energy that can be provided when refining is also faster!

Back then, when Xu Mu and Zhao Lian were in the White Bone Forbidden Land, they had used the blue-rank spirit stone to resist the attack of a second-realm cultivator, and they persevered until Feng Peining and Chen Shuixuan's help!

On weekdays, Xu Mu only used purple-rank spirit stones to cultivate, but now at a critical moment, he could not tolerate reluctance.

In this one-zhang square tree hole, there is nothing, and there is no Mingyi earth fire that can be used for alchemy in the alchemy room of Tianyan Sect.

In his current situation, there was only one way for him to work.

That is to use the Cylene Fire Heart Flame Technique granted to him by Zhang Chunfeng, and use the Heart Fire to forcibly refine the pill!

Suddenly, when he mentioned the Flame Technique, Xu Mu sighed in his heart.

He finally figured out why Zhang Chunfeng would accept him as an alchemy boy, and why he would pass on the Flame Heart Flame Recipe to him!

Even Qi Lao Qi Huanzhang gave him "Qi Dan Essentials", I'm afraid it's not for no reason!

"They...... Nine times out of ten, I have already calculated that I am going to refine the pill in the Xuantian Secret Realm!" Xu Mu sat cross-legged and arched his hand in the direction of Tianyan Sect, sincerely thanking him in his heart!

Since coming to the other world, he has never been negative along the way.

And his good friends, teachers, and commanders, didn't cheat him z.br>!

Xu Zhilang, Xu Wei, Shen Yingxing, Chen Shuixuan, Qin Xin'er, Ruan Feihong, Lei Wanjun, Chen Yajiu, Lei Huan, Wang Buying, Zhao Lian, Feng Peining, Zhang Chunfeng......

Pictures that were either warm or touching kept flashing through his mind, making Xu Mu's mood more and more peaceful.

The sword finger in his left hand flipped and lit at the cyan pill furnace.

Smack!

Dan furnace lid, down in response.

Xu Mu took a deep breath and ran the Flame Heart Technique, creating a crimson flame in the palm of his left hand.

The flame was not large, only half a foot in size.

But with the improvement of his cultivation to the realm, he can barely use the heart fire alchemy!

After three breaths, Xu Mu's left hand ran the Flame Heart Flame Technique, attracting the heart flame and coming to the cyan Dan furnace.

Smiling slightly, he reached out with the sword finger of his right hand and tapped it lightly on the storage bag five times.

At the same time, he silently recited in his heart the "Qi Dan Essentials" written by Qi Huanzhang with great effort.

Familiarize yourself with one of the texts that I had already memorized, which was the herb monarch and minister compatibility method needed to refine the Realm Breaking Pill.

Five jade boxes, delicately ingested from the storage bag, were opened one by one.

The five-flavored herb exudes a refreshing medicinal fragrance from the jade box.

The sword finger of his right hand moved again, and he clicked on a jade box, and there were words in his mouth.

[Bitter vine flowers, like yin and dislike yang, the vine withers for thousands of years before blooming a flower, one is the best, two are gods, and three are immortals! To the flowers and leaves, the vine can be used as medicine, for the calming lead, the medicine is bitter, and the sex is slightly cool! 】

Shout!

The rhizome of the bitter vine flower that was inch long was the first to be sacrificed by him and sent to the bottom of the washed and clean cyan pill furnace.

The strange thing is that as soon as there is a temperature at the bottom of the Dan furnace, the rhizome of the bitter vine flower has changed!

Under Xu Mu's gaze, it quickly melted and turned into a ball of liquid!

The color of the potion was crystal clear, like a colorless crystal, not at all the turquoise color he had originally envisioned!

"Perhaps, this is the effect of the alchemy elixir!" Xu Mu didn't know much about alchemy, and now he was just reading from the book.

If you want to really understand the secret, I'm afraid you will have to wait until he becomes a real alchemy master!

Shout!

A piece of green frost grass was beaten by the frost, and under the attraction of a wisp of purple mana, it flew out of the jade box and came to the bottom of the Dan furnace, covering the colorless and transparent medicinal liquid.

As Xu Mu's mana output increased, the firepower of the Heart Fire Flame became bigger and bigger!

Underneath the cyan pill furnace, it has become red, and it is extremely hot!

After more than ten breaths, the old leaves of the green frost grass were baked by the heart fire, and the rhizomes of the bitter vine flowers fused perfectly at the bottom of the cyan pill furnace, turning into a crystal clear green liquor.

Step 1, Perfect!

Xu Mu exhaled, stabilized his mind, and moved his right hand sword fingers again according to the method of refining the Realm Breaking Pill and adding medicinal herbs.

The lid of a larger jade box opened, revealing the fiery red color inside.

Of the forty-nine fiery red flower beads in the 100-day yellow flower, seven jumped out of the jade box.

Just like the milk swallow cast into the forest, it was put into the Dan furnace by Xu Mu.

The seven stamen beads bounced around at the bottom of the Dan furnace for a while before they entered the green liquor, which frightened Xu Mu so much that he didn't dare to gasp.

After a while, Xu Mu wiped the fine sweat on his forehead, used his mana, and increased his heart fire again!

The seven pill beads of whooping yellow turned into seven fiery red silk threads in the turquoise liquid light cluster.

However, no matter how much Xu Mu increased the size of the flames, the seven fiery red silk threads never disappeared.

Xu Mu closed his eyes and meditated, recalled the description of refining the Realm Breaking Pill in "Qi Dan Essentials", and put his mind at ease.

This is the miracle of using the alchemy of the centennia yellow stamen beads, which can improve the pill and medicinal power!

"Nine-leaf cucumber, as long as the root of the cucumber." Xu Mu muttered a sentence in his mouth, took out a wisp of mana, and threw the ink-colored root into the Dan furnace.

Twenty breaths passed, and the root of the cucumber melted, turning into a mass of ink-colored spiritual liquid, next to the turquoise spiritual liquid, and there was no mutual fusion.

"Purple Stem Qingling Grass, the roots, leaves, and flowers are all removed, and only a purple stalk is used!" Xu Mu read the text silently, and moved again with the sword finger in his right hand!

Shout!

The purple stalk flew into the Dan furnace, one end inserted into the inky spiritual liquid, and the other into the turquoise spiritual liquid.

"This is the moment!" Xu Mu let out a low snort, and the sword finger of his right hand flipped over.

Bang!

The heavy lid of the furnace is tightly covered on the Dan furnace.

Immediately, his right hand turned into a claw, reached to the left side of his body, grabbed the blue-rank spirit stone, and frantically refined!

Boom!

The mana that urged the Flame Heart Technique was suddenly increased by him to more than three times, and the flames under the cyan pill furnace swelled in an instant!

The crimson fire mass born by the heart fire burned violently, enveloping the entire cyan pill furnace inside!

Thirty breaths passed, the whole body of the cyan pill furnace became red, and the rhizomes of the purple stem Qingling grass began to condense and shorten.

What made Xu Mu uncomfortable was that he didn't expect the temperature of the heart flame to be so high that it almost ignited his beard three feet away.

A stick of incense

Go, there was a change in the cyan furnace.

Under the connection of the purple stem Qingling grass, the ink-colored spiritual liquid and the turquoise liquid appeared to merge and merge!

From two masses of liquid that do not interfere with each other, they slowly merge into one and turn into a dark green color!

It's just that, in the dark green liquid, there are seven fiery red silk threads and two purple points of light.

At this time, the preliminary preparations are basically over!

"The next step is to make pills!" Xu Mu let out a turbid breath, held his breath and concentrated, not daring to rush his heart violently.

Because, according to the records in "Qi Dan Essentials", the elixir is divided into four levels and nine grades.

According to the difficulty of refining, from high to low, there are four levels of "Heaven, Earth, Xuan, and Yellow".

The Realm Breaking Pill is a spirit pill available to low-level cultivators, and it is classified as a yellow level.

Among the nine elixirs, according to the erysipelas and medicinal power conversion rates carried when the pill is formed, it is divided into upper grade, middle grade and lower grade.

Among them, the first, second, and third grade elixir do not contain erysipelas, and belong to the high-grade elixir.

Fourth, fifth, and sixth-grade elixirs, the erysipelas content is very low, and they belong to the medium-grade elixir.

The seventh, eighth, and ninth grade elixirs have a low erysipelas content and belong to the lower elixir.

The medicinal power transformation efficiency of the first-grade elixir is one hundred to two hundred times that of the nine-grade elixir!

Generally speaking, according to the evaluation system of Tianyan Sect.

An alchemist like Xu Mu can be regarded as qualified if he can become a Dan Nine Pins, and he can be called Excellent if he can become an Alchemist with eight Dan Pins.

If you can alchemy and form, the grade of the elixir is above the sixth grade, you can have a separate alchemy room.

The sect will spare no effort to provide materials and focus on cultivation until it grows into an alchemy master!

For some reason, Xu Mu was a little distracted, silently thinking in his heart, and the corners of his mouth couldn't help but smile!

"If it is according to my talent, if Cheng Dan becomes a product this time, when Tianyan Sect pays tribute to the ancestor master, then he must not stand in front of the sect master?!"

Hahaha!

The sound of pleasant laughter came out of his mouth, and reverberated in the hollow of the tree.

Time passed little by little, and in the cyan pill furnace, the dark green herb spirit liquid gradually became viscous.

With the surging heart fire, it rolled incessantly at the bottom of the Dan furnace, gradually dividing into seven oval dark green objects.

"This is the prototype of the Realm Breaker!" Xu Mu's face was happy, his eyes looked at his hands, his hands looked at his heart, and his heart looked at the cyan Dan furnace.

The blue-rank spirit stone in the palm of his right hand was once again strengthened by refining strength, and the surging energy poured into his body, impacting his body so much that he couldn't help shaking.

The left hand technique was linked, and the fire ball that was born from the fire heart flame technique was urged to six times the original size!

Seven dark green objects, the amount of water contained in them became less and less as the firepower increased.

After a few rolls, it has gradually become a perfect circle!

"Cheng Dan is now!" Xu Mu let out a loud shout, and threw away the blue-rank spirit stone with his right hand.

Running the Big Dipper Star Yuan Gong, he slammed a fierce palm at the cyan pill furnace.

In the cyan pill furnace, the pressure has skyrocketed!

Seven pills, instantly formed after one palm!

Unfortunately, he didn't have time for ecstasy yet.

There was a "bang" sound, and his whole body was submerged in a large cloud of black smoke that instantly gushed out from the Dan furnace.

His body was hit by the sound wave of the explosion and he fell backwards, spurting a mouthful of blood on his back!

The fryer is ......!