In the elixir area, before returning to its original place, the voice of ink dust suddenly sounded in Zhang Yu's sea of knowledge.

"Xiao Yu, how much can you exchange all your current spirit stones for high-grade spirit stones?"

"It's about 10 million. Zhang Yu thought for a while.

"More than 10 million? It's a lot, but if you want to buy all those elixirs, it's still far from enough, just a seventh-level elixir is worth millions of high-grade spirit stones. It seems that the old man has to take action. Mochen sighed lightly.

"Master, are you going to start refining the elixir?" Zhang Yu said with a happy face.

"If I didn't come, would I still let you come? Just your three-legged cat's alchemy, if you don't refine thousands of fourth-level pills, you don't even want to compete with others!" Mo Chen glanced at Zhang Yu and said.

"Hehe, there is a master, then it will be my turn to sacrifice ugliness. Zhang Yu said cheekily, not feeling embarrassed.

As the relationship between master and apprentice gets closer and closer, Mochen is also a teacher and friend to Zhang Yu, and there is no restraint between the two at all.

"You kid, you don't respect teachers more and more, it's really a bad day. If I am unlucky, I will send you a message later, and I will give me three copies of each elixir, and I will try to refine it in the shortest possible time. Mo Chen said helplessly.

"Sixth-level high-grade elixir Nirvana Soul Elixir, master, you really want to refine this elixir, its success rate is not very high, and it consumes quite soul power!" Zhang Yu couldn't help but exclaim.

For this Nirvana Soul Pill, Zhang Yu can be regarded as quite understanding, it has only one effect, and it can increase the probability of the Martial Sect powerhouse breaking through the Netherworld Realm!

You must know that if the Martial Sect wants to break through to the Voyeur Yin Realm, it must comprehend the most basic laws of life and death, and the role of the Nirvana Soul Elixir is to allow the peak Martial Sect to experience a death experience in the form of a soul. Although it was only a sixth-level top-notch elixir, the difficulty of refining it was almost comparable to that of an ordinary seventh-level elixir.

In particular, its refining steps are quite cumbersome, and the control of soul power is extremely harsh, and the slightest carelessness will lead to the loss of previous efforts.

As far as Zhang Yu knew, even if it was a seventh-grade alchemy master, the success rate of refining was less than forty percent, and some were even lower.

This also leads to the fact that the Nirvana Soul Pill is basically in short supply in Zhongzhou, except for those super forces who have their own exclusive alchemy masters who can refine the Nirvana Soul Pill by themselves, other small forces, or those who are scattered and strong, if they want to get the Nirvana Soul Pill, the most important way is through auction bidding.

Once when he was in the Blood Plains, Zhang Yu originally wanted to let Mo Chen refine it, but he couldn't even collect all the elixirs needed for refining, and it was impossible to talk about refining pills.

"You still need to say this, but in my current state, even if I want to refine the Seven Rank Pill, I am a little weak, not to mention that I can't catch up with the time. The reason why I asked you to buy three copies is just to be prepared. If I have a physical body, the success rate of refining the Nirvana Soul Pill is only about seventy percent, even if there is only one soul body left now, I don't believe it, I can't refine one furnace of the Soul Pill with three parts!" Mo Chen said proudly.

"Hehe, it's still the master's thoughtfulness. Zhang Yu patted his ass without a trace.

"Hurry up and get down to business, I'll go back and hurry up to make alchemy." Ink Dust urged.

"Obey!" Zhang Yu finished speaking, and began to go to the elixir area again to purchase the elixir he needed.

A total of eleven sixth-level elixirs are required for the refining of the Nirvana Spirit Pill, but fortunately, except for the Dead Soul Grass, which is relatively out of the way, the others are relatively common, and they are all collected without wasting much time.

Even if Zhang Yu had a bronze VIP token, after discounting, the three elixirs cost him a total of 4.8 million high-grade spirit stones, which almost made Zhang Yu cry in distress.

This time, Zhang Yu's total net worth has shrunk by nearly one-third, and he now only has 10 million or hundreds of thousands of high-grade spirit stones left.

"Okay, don't pretend, you kid, as long as the three copies can be successfully refined, all the costs will be recovered, although this Wanjin Chamber of Commerce is not the largest auction in Zhongzhou, but there will definitely be countless strong people to participate in it at that time, any Nirvana Soul Pill, it will not be a big problem to auction more than one million high-grade spirit stones. Mochen said.

"Then master, can you refine a hundred pills in one furnace? If you can, won't we make a fortune!" Zhang Yu asked in surprise, his saliva almost flowing to the ground.

"Poof, do you really dare to think that this is a second- or third-grade low-grade elixir, and you can refine dozens of pills in a casual furnace? If you are lucky, it is estimated that it will only be about ten, and if you are unlucky, it is possible to have one!" Mo Chen's face I am afraid that I don't know you.

"I'm just going to say it, don't take it seriously. Zhang Yu smiled and said, "I'll send a message to Lin Yan and the others right now and ask them to come over." ”

"No, they're both back. ”

Sure enough, as soon as Mo Chen's words fell, two familiar figures appeared in front of Zhang Yu's eyes.

"Hey, Brother Yu, you're back so early. Seeing that Zhang Yu was already waiting for him in place, Lin Yan was a little embarrassed.

"I just arrived not long ago, how was the shopping?" Zhang Yu said casually.

"Hey, don't mention it, it's unbearable!" Lin Yan said dejectedly, looking extremely frustrated.

"What's the matter, is there any trouble?" Zhang Yu hurriedly asked.

Lin Yan is also one of his brothers, if he really suffers any grievances in the Wanjin Chamber of Commerce, Zhang Yu will definitely go to Li Sheng to ask for an explanation, I believe that in order to win his favor, Li Sheng will definitely 'act impartially'!

"Don't say it, it's a shame to say it. Lin Yan waved his hand and said reluctantly.

"If you say it, just say it, there are still things to be seen between you and me. Oh...... It's not like you're chasing other girls and being given that by others!" Zhang Yu said jokingly.

But Brother Yu, if I say it, you must promise me a condition. Lin Yan suddenly changed his words.

Hearing what Lin Yan said, Zhang Yu suddenly smelled a smell of conspiracy, "You tell me about the matter first, as for the conditions, let's talk about it later." ”

Seeing that Zhang Yu was not fooled, Jian Wangui on the side smiled and said: "Look, I just said that Zhang Yu will not be deceived so easily, haha, it seems that I won." ”

"Brother Yu, you're too stingy, hey, can you still play happily in the future?"

"Of course, but only if you tell me what you want to buy first. ”

"Then I can say, I fell in love with a weapon in that weapon area, but I'm still close to pressing all my net worth, can you help me make up for it?"

"Do you want to buy a mysterious weapon? Don't you already have the Earth Demon Fist? Also, how much are you talking about?"

"Hehe, I want to buy that Dao weapon Sky Splitting Axe, Brother Yu, you can fund me with tens of thousands of spirit stone spirits, I guess I can buy it." Lin Yan said shyly.

"Get out!"

Zhang Yu shouted angrily, then turned around and left, leaving Jian Wangui there laughing.

"Is it so big of a reaction?" Lin Yan muttered in a low voice, and hurriedly followed.

......

After everything was arranged, the ink dust suddenly came out and stood in front of the Dan furnace.

Looking at the elixirs in front of him, his eyes also showed a look of reminiscence.

Since losing his physical body and lingering for a long time, except for the last time he refined the Dragon Pill for Zhang Yu, he hadn't refined this high-grade pill for a long time.

Even so, for the refining of the Nirvana Soul Pill, except for the fact that the technique was a little jerky at the beginning, all kinds of refining methods quickly naturally appeared in his mind.

Looking at the ink dust that was refining the medicinal power like a cloud, Zhang Yu also had a heartfelt admiration in his heart.

Under the control of Mo Chen's huge soul power, every subtle step was controlled by him with extreme precision, and clumps of purple or cyan elixir essence were quickly tumbling in the Dan furnace.

In particular, the technology of ink dust fire control is even more perfect, so that even if Jian Wangui does not know the art of alchemy, he is secretly speechless. This was the first time he had witnessed Mo Chen's refining of pills, but his admiration for Mo Chen, in Lin Yan's words, was as gushing as the water of the Yangtze River.

There was no mistake in the refining of the elixir, and it soon began to take the crucial step of melting the pill.

At this time, even Mochen's face appeared solemn.

"Hey!"

The ink dust drank low, and the seal in his hand kept flying out, imprinted on the colorful pill blank in the Dan furnace, and between the wriggling, an extremely rich fragrance suddenly emanated from the Dan furnace, refreshing people's hearts!

"It's almost done!" Zhang Yu whispered in his heart.

"Bang!"

However, before Zhang Yu was happy, there was a muffled sound in the Dan furnace, and the Dan furnace shook violently, and even a few cracks appeared.

The essence of the elixir that was about to fuse turned into a black residue in an instant, floating in the Dan furnace.

"Hey, it's still a failure. Mochen said with a slight disappointment, but he quickly recovered from the disappointment, after all, he didn't want to succeed once.

Carefully put each elixir into the Dan furnace in a certain order, looking at the elixir that quickly withered and melted in the flames, Mo Chen's expression became solemn again.

After about two hours, all the impurities of the elixir in the Dan furnace were refined, and only the most essential part remained.

After taking a deep breath, Mo Chen, who was highly concentrated, began to melt Dan for the second time!

Having learned the lesson of his first failure, this time, he was more cautious with every step, almost perfect.

And in order to be able to fuse all kinds of medicinal power in one time, his soul power almost did not stop for a moment, constantly playing one complex method after another!