Xu Mu jumped off the stone bed, tidied up his clothes and came to the door of the small courtyard.

Open the door.

He bowed to Zhang Chunfeng and greeted him respectfully.

"Good morning, master! Are you looking for a disciple?"

"Yes. I am alchemy today. Not? Good boy, good! Cultivation has been improved?!"

Zhang Chunfeng smiled gently, asked Xu Mu to excuse himself, waved his sleeves and walked in front.

Xu Mu followed in small steps, and a confident smile unconsciously appeared on his face.

"The disciple cultivated a little yesterday and broke through the ......."

Zhang Chunfeng crossed out a wisp of divine power and probed on Xu Mu's body.

After a moment, he nodded in satisfaction.

"Shui Xuanxuan's disciple's vision is still good! Whether it's you or Qin Xin'er, you're very spiritual!"

When Xu Mu heard Qin Xin'er's name, he looked a little surprised. Z.br>

"Master, have you ever been to Qianyuan Temple?"

Zhang Chunfeng smiled, slowed down a little, and reached out to grab a wisp of aura like fairy mist in the air.

"Of course. The statue of the patriarch of the Sanqing Hall of Qianyuanguan, that is what I erected with your master......

At this point, he seemed to remember something, and said no more.

Xu Mu is very particular about his sense of proportion in his interactions with people, and he guesses that Zhang Chunfeng may have something unspeakable, so he didn't ask questions.

After half a cup of tea.

Xu Mu's face turned dark, and he took out a purple-level spirit stone from the storage bag and handed it to the hunchbacked old man who was in charge of guarding this place.

"Uncle Qi, this is a spirit stone today, please accept it with a smile."

The hunchbacked old man arched his hand towards Zhang Chunfeng, and with a smile, he snatched the spirit stone that shimmered with purple light from Xu Mu's hand.

He rubbed it in his hand and solemnly put it in his pocket.

"What are you talking about, stinky boy? What is called Xiaona, old man, I am all for the sect! These spirit stones can't get into my personal pocket!"

Zhang Chunfeng was not surprised by the words of the hunchbacked old man, and walked in front of him with his hands behind his back.

Xu Mu helplessly apologized to the hunchbacked old man and took a jade pendant talisman.

"Master, you're always waiting for me......

After coming to the innermost alchemy room, Xu Mu handed the door ban card to Zhang Chunfeng.

Zhang Chunfeng flicked his sleeves and played a wisp of lilac mana, which hit the door ban card.

The door ban sign flew lightly from Xu Mu's hand and pasted it to a groove on the stone door.

After a few moments, the jade token and the stone gate merged into one, and they were no longer separated from each other.

Squeak.

Exclusive to Zhang Chunfeng's alchemy room, the stone door opened through the middle hole, revealing a blue and shining Dan furnace inside.

When he went inside to watch, Xu Mu was very surprised.

He has been cultivating for a long time, and he has seen a lot of various materials.

But even so, he couldn't tell the material of this Dan furnace.

Xu Mu entered the alchemy room, rubbed a few handfuls on the Dan furnace, and asked Zhang Chunfeng:

"Master, what is this Dan furnace made of?"

Zhang Chunfeng sat cross-legged on a gray futon in front of the Dan furnace and stroked his beard.

"I don't know what the specific material is, but I know that this is a Dan furnace inherited from ancient times. However, according to my master, there is a mysterious bronze ...... in this furnace."

"I wonder if they're related?" Xu Mu listened to it and suddenly remembered the mysterious bronze he had obtained in Jingyue Lake.

After that, he involuntarily touched the Sheshen Sword on his waist, and Shennian crossed out, hooked up to the Sheshen Sword, and felt the fluctuating sword intent in it.

Zhang Chunfeng interrupted Xu Mu's thoughts and ordered him to go to the beast head on the side of the Dan furnace and rotate the beast head to the right for half a circle.

Call!

As the beast's head rotated, a crimson earth lung fire was born under the belly of the cyan pill furnace!

Xu Mu took half a step back and designed this refinement

The people of Danfang expressed their sincere admiration from the bottom of their hearts.

"Master, how big is this flame? Do you need to adjust it again?"

Zhang Chunfeng waved the dust and taught Xu Mu the method of observing the temperature of the Dan furnace.

"You can judge the size of the flames according to this method."

After Xu Mu silently recited the trick several times in his mouth, he pinched the trick and sent a wisp of divine thought to the cyan pill furnace.

The scene inside the cyan pill furnace clearly appeared in the bottom of his heart.

In the Dan furnace, the herbs placed by Zhang Chunfeng had just shown signs of melting at this moment.

Xu Mu scratched his head and said tentatively:

"I see that the herbs in the Dan furnace are changing, and they will not melt. According to the disciple's judgment, it seems that the firepower is a little less?"

Zhang Chunfeng nodded, and waved a few wisps of mana at the cyan pill furnace with the dust in his hand.

In the cyan pill furnace, those herbs were separated by mana and shattered into powder.

"Then you try to turn the beast's head to the right again to increase the power of the fire in the lungs."

Xu Mu agreed, came to the side of the beast head, held the beast head and turned it to the right again for half a week.

In the lower part of the cyan pill furnace, the fire of Xuanyang rose violently.

Visible to the naked eye, the belly of the Dan furnace began to slowly turn red.

Several kinds of herbs in the Dan furnace were gradually roasted into crystal clear liquid balls by the high temperature.

"This is alchemy!" Xu Mu's heart shook, he understood that Zhang Chunfeng's move was teaching him the method of alchemy!

Zhang Chunfeng waved the dust while teaching Xu Mu earnestly.

"Look closely. Alchemy is like refining people, and it is similar to cultivation! Don't be impatient, can't be impatient, can't be slow!"

Xu Mu's heart was shaken, as if he had an understanding!

I found a futon and sat cross-legged and understood what Zhang Chunfeng said.

At this time, Zhang Chunfeng deliberately soothed the alchemy technique, and took advantage of the time of alchemy to guide Xu Mu's cultivation method.

Xu Mu exhaled lightly, and slowly operated the mana in the dantian, circulating between the Dao bases.

Suddenly, he blessed his soul and thought of a wonderful method!

If he could refine the Dao Foundation like an alchemy and refine a new foundation stone, then there would be no conflict between Xuan Dao and Kendo in his body at that time!

Thinking of this, Xu Mu's heart felt like a lightning bolt was split, and his thoughts suddenly brightened!

The Yin and Yang Taiji Diagram at the bottom of Taiwei Lake is the best reference object for him to refine the Dao Foundation!

Zhang Chunfeng noticed that Xu Mu was distracted, coughed lightly, and instructed Xu Mu to adjust the size of the flame again.

"This elixir I have refined, called the Realm Breaking Pill, has a miraculous effect on the monk breaking through the barrier that has been difficult to break for a long time!"

Breaking Realm Pill, when refining, pay attention to the combination of civil, military and fire, and finally use divine thoughts to attract the Dan liquid to collect juice, and the Dan can be done!

Xu Mu retracted the throbbing thoughts in his heart, stared at Zhang Chunfeng's technique and carefully memorized it, and muttered to himself:

"Master, every time you refine the pill, do you need to constantly adjust the size of the earth fire?"

Zhang Chunfeng pulled up his sleeves and hugged his hands roundly.

In the cyan pill furnace, the liquid beads of herbs have already fused with each other and condensed into a clump!

As his technique changed, the condensed pills became more and more constricted.

"No, I don't. With my current cultivation as an advancement, I usually use my heart fire when I am alchemy!"

"Heartfire! If you can learn to condense your heart fire, you won't have to pay spirit stones for alchemy in the future!" Xu Mu was moved when he heard it, and the small abacus crackled.

Zhang Chunfeng glanced at Xu Mu, and his face became gentle.

After snorting, he waved the dust and beat the cyan Dan furnace standing on the fire of the earth's lungs nine times!

Then, in Xu Mu's stunned, he lifted the dust up slightly, and the lid of the Dan furnace "slammed" down.

Eight crystal-clear milky white elixirs leaped out of the cyan pill furnace and landed in Zhang Chunfeng's palm.

"Cheng Dan!" It was the first time Xu Mu had been so close

Seeing people alchemy, I couldn't help but be excited in my heart!

Zhang Chunfeng sighed lightly, and used his mana to sweep out the remaining herb dregs in the cyan pill furnace.

"Nothing to fuss about. Originally, it was supposed to be nine pills......

"Master, you are too perfectionist! Being able to turn into eight pills at once is already something that many monks can't dream of!" Xu Mu said on the side.

"Really? That is, you have shallow knowledge......" Zhang Chunfeng pinched a elixir in Xu Mu's scorching gaze and checked the breath.

It's just that his next move really surprised Xu Mu.

Zhang Chunfeng did not give Xu Mu a newly refined Realm Breaking Pill, but put it all into the storage bag.

Xu Mu swallowed a mouthful of saliva, got up from the futon, and bowed to Zhang Chunfeng.

"Master, can you teach me the method of heart fire urging you mentioned?"

"Is that so? Your master won't let me teach you how to practice!" Zhang Chunfeng raised his head slightly and looked at Xu Mu.

"It's very good! Master just didn't let you keep passing on the secret method of my life path, and didn't say that he wouldn't let me learn alchemy!" Xu Mu said with a resolute expression.

Zhang Chunfeng muttered a few words, paced a few steps in the alchemy room, and expressed his approval of Xu Mu's words.

"That's exactly what happened! Then I'll tell you about it, and how much you can learn depends on your own understanding!"

Xu Mu nodded hurriedly, like a scholar who had just entered the hall, sat quietly on the futon, opened his eyes and stared at Zhang Chunfeng to speak.

Zhang Chunfeng stroked his beard and slowly said to Xu Mu that there were only more than 50 words.

"This recipe is called the Flame Recipe, and it's a fragment of what I got when I was young. And you remember: fire is born in wood, gathering weak and strong, the heart is fire, and a thought crosses it......

After reciting the mantra several times, Zhang Chunfeng was afraid that Xu Mu would not understand, so he personally showed him the drill.

"The Heart Flame Technique, although it is a fragment, explains the application of the heart fire very thoroughly!"

When cultivating, it is even more dangerous, and if you are not careful, you may die!

After Xu Mu silently recited it dozens of times, he had a firm memory in the mind of the divine soul and would never forget it again.

Suddenly, Xu Mu remembered something, looked at Zhang Chunfeng and stammered:

"Master! Cao Wuxian came to Tianyan Sect, is this the trick of this skill?!!?"

Zhang Chunfeng smiled, behind his hands, like an abyss.

"If he wants to learn, do I have to teach it?"

As he spoke, Zhang Chunfeng seemed to remember the past, his brows were tightly locked, and his expression was a little displeased.

"If I send my disciples to the Cao Family's Holy Land to learn from them, I'm afraid they may not be willing to teach, right?"

Xu Mu was stunned for a moment, only the mountain shouted "Master is wise"!

As for other things, he didn't understand them, and he didn't dare to comment on them.

Xu Mu learned some secrets about Zhang Chunfeng from the mouth of his cheap uncle Gou Daoyi.

This Tianyan Sect Master, although he has a fairy wind and bones, he has always been a strong person!

It is said that the Emperor of the Northern Yuan Dynasty once came to Tianyanzong to pay a visit, but because he didn't say a word to deal with it, he was directly bombarded down the mountain by Zhang Chunfeng!

At that time, even if there was such a powerful figure as the Northern Yuan National Teacher, no one dared to say anything!

Zhang Chunfeng saw that Xu Mu did not dare to answer indiscriminately, and recognized Xu Muzhi's attitude of advancing and retreating.

"Alas! If your master had half of your eyesight back then, I wouldn't have allowed him to practice swordsmanship......

Xu Mu sighed and helped Chen Shuixuan.

"Although my master is a bit proud, he never owes anything to others...... Master, he may have his own difficulties......

Zhang Chunfeng smiled helplessly, and flicked the five fingers of his right hand outward, extinguishing the Xuanyang Earth Fire that was still burning.

"Forget it, let's not talk about the past! Let's continue to talk about this fire heart flame trick,

The most important thing to pay attention to in cultivating this method is the three slow words!"

The heart should be slow, the hands should be slow, and the mana should be even slower!

In this way, as a monk who urges this skill, there is a 1 in 10 chance of igniting the fire in the heart in one fell swoop!

Hula.

A small red flame quietly danced and burned at the tip of Xu Mu's right hand.

Xu Mu scratched his head and looked at Zhang Chunfeng with some incredulity, "Master, is this the most difficult heart fire in the legend?"

Zhang Chunfeng: "......"