"Yuanxin Grass, Haoling Vine, Empty Cloud Spiritual Liquid, Nine-Leaf Lianxin Flower ......"

Wu Tianyi searched for all the materials for refining Haokong Dan one by one, as if he had just discovered it, the materials for refining seven or eight pins of pills on the shelves here were far more than those prepared for five or six pins of pills.

"It seems that Xiao Yezi still put a lot of thought into these preparations!"

Wu Tian said with a smile on his face, but as soon as the words fell, Ye Ti's voice rang out proudly, "That's natural! Master, I have worked hard for the little monk, you must not let me down!"

"Hehe, I'll do my best!"

Wu Tian shrugged his shoulders, and while carefully observing the various materials in his hand, he asked again, "Xiao Yezi, you actually prepared the refining materials for the eighth-rank pill for me, do you think that I can break through to the eighth-order alchemist?"

"Weishenme, can't you?"

Ye Ti quickly replied, "As long as you kid work hard, I believe in you! You are the heir I chose for the old master, can't even an eighth-order alchemist reach it?"

"Uh......"

Hearing this, Wu Tian couldn't help but smile bitterly.

He knew very well in his heart that there was a gap between the seventh rank and the eighth grade, not to mention that he could only be regarded as a seventh-order alchemist now.

In the Qingcang Continent outside, although seventh-order alchemists are rare, they are not a few, after all, they often refine a seventh-order pill by chance, and they will be named seventh-order alchemists, but if they are eighth-order, it is not something that can be achieved at will!

As far as Wu Tian knew, in the entire Qingcang Continent, including the Helian family's Shui Lan family, and so on, the number of eighth-order alchemists had not exceeded twenty.

Don't look at it, twenty seems to be a lot, but there are hundreds of billions of people in the entire Qingcang Continent, and among these hundreds of billions of people, I am afraid that there is not even a little wave, and it can only be said that it is just a little droplet.

"I'll try!"

Wu Tian took a deep breath, calmed down, temporarily put aside the words of the eighth-order alchemist, and concentrated his gaze on the material in front of him.

"By the way, although Purple Thunder Yuanyan is good at attacking, but for me now, alchemy also has a certain promoting effect, after all, Purple Thunder Yuanyan also belongs to a kind of Lingyan, but unfortunately it doesn't seem to have any ranking among the top ten Lingyan. ”

"Hmm...... If I use Purple Thunder Yuanyan to refine the pill now, what will happen?"

Wu Tian said almost to himself, he had always forgotten that he actually had an alchemy furnace, which was given to him by Elder Aomei in the Linglong Condensation Tower, and when he got the Purple Thunder Yuan Yan, he used the Purple Star Furnace to refine a lot of Guiyuan Pills, but later on, because of one thing after another, he almost forgot about it.

Now, in his spare time, he can't help but think of the existence of the Purple Star Furnace.

However, compared with the Qiankun Ding in front of him, the Purple Star Furnace is probably really a lot worse.

The most important thing is that the Purple Star Furnace is just an ordinary alchemy furnace, and it does not have any spirituality, and this alone cannot be compared with the Qiankun Ding.

"And what about Purple Thunder Yuanyan......?"

Wu Tian was a little confused, what he had thought before was that Purple Thunder Yuan Yan and Qing Soul Yuan Yan were both offensive spirit flames, but now Wu Tian was a little hesitant.

"Little monk, don't think about it!"

As if seeing Wu Tian's hesitation, Ye Ti's voice echoed in his ears again, "That Purple Thunder Yuanyan is only useful for refining pills below the fifth grade, if you want to refine the seventh-grade pill, it won't have much of a promoting effect at all!

"Red Lotus Yuanyan?" Wu Tian was stunned for a moment.

"Not bad!"

Ye Ti quickly replied, "The Red Lotus Yuan Yan is the most suitable for alchemy among the Seven Colors Yuan Yan, even if you refine the Eight Rank Pill, it has an extremely strong auxiliary effect!"

"Doesn't that mean you say it in vain?"

Wu Tian said angrily, "Among the seven-colored Yuanyan, I only have mastered the purple thunder and the green soul now, according to the ranking of red orange, yellow, green, blue, and purple, the red lotus Yuanyan should be ranked first, how can it be so easy to be encountered by me, let alone control!"

"Hey, huh?"

Ye Ti smiled strangely and said mysteriously, "Maybe that?"

"What do you mean?" Hearing this, Wu Tian's heart suddenly moved.

"Hehe, little monk, you'll know when the time comes, let's concentrate on alchemy now!"

Ye Ti said with a smile, but then his tone changed and he said, "By the way, little monk, your Purple Star Furnace is useless, that thing is only suitable for refining low-grade pills, and it is not of much use for high-grade pills, maybe it may not be able to withstand it and cause the furnace to explode!"

"Fryer ......"

Wu Tian couldn't help but smile bitterly, but he understood Elder Aomei's behavior very well, after all, although he was quite talented in alchemy at the beginning, who would have thought that Wu Tian could not help but improve his strength very rapidly over the years, and now in an environment like the Colorful Xuan Palace, he could start trying to refine the Seven Rank Pill?

It must be known that the youngest seven-rank alchemists outside are already in their forties, more than double Wu Tian's age......

"What about this Qiankun Ding?" Wu Tian asked.

"Qiankun is naturally different!"

With Ye Ti's words, Wu Tian could feel a fluctuation in the spiritual connection between him and Qiankun Ding, as if he was very dissatisfied with Wu Tian's words.

"Look at it, even Qiankun is a little dissatisfied!"

Ye Ti smiled and said in a condensed voice, "Qiankun is refined by the old master himself, and it is also refined with my own body, how can it be compared to those garbage alchemy furnaces? Let me tell you, as long as you cultivate enough, Qiankun can help you refine the Nine Rank Pill, you know?"

"Okay, I see!"

Wu Tian nodded, and at the same time used his spiritual power to appease Qiankun Ding, and then said, "Xiao Yezi, if I want alchemy outside, do I have to come in?"

"Of course you don't have to!"

Ye Ti replied, "Now that Qiankun has recognized you as the master, when you are outside for alchemy, Qiankun can naturally go out at any time!"

"That's right, that's pretty much it!"

Wu Tian bowed his head lightly and didn't ask anything more, and Ye Ti quickly quieted down......

In the quiet environment, Wu Tian held his breath and began to try the first refining of the Seven Rank Haokong Pill.

With the previous precipitation of alchemy experience, Wu Tian can be said to be familiar with the way this time, such as Yuanxin Grass and other materials flew into the Qiankun Ding under his control, and the Qiankun Ding also erupted a scorching flame at this moment, although there is no one that does not belong to any kind of spiritual flame, but it is much stronger than other ordinary flames, and the most important thing is that these flames are born with the Qiankun Ding, and there is no need for Wu Tian to separate part of the true yuan to output like ordinary alchemists, so as to reduce the dispersion of spiritual power......

However, even so, when refining the alchemy, Wu Tian also needed to be distracted to control the size of the flame, after all, in different alchemy processes, the strength of the flame also had a crucial impact on the success or failure of the alchemy.

The alchemy room was completely quiet, and he could only hear the slight sound of the continuous melting of various materials in the Qiankun Ding, and Wu Tian was also a little nervous at this time......

Haokong Pill is one of the more difficult to refine among all the seventh-rank pills, but because of its special effects, it is the first choice of every seventh-order alchemist.

However, the more you choose, the more you can fail!

Among the seventh-order alchemists, there are often no more than one-third of them who can refine Haokong Dan.

"No matter what, I must work hard! It's just a seven-rank pill, if this can't be refined, how can I refine the nine-turn yin-yang pill for Sister Mei and the two elder brothers in the future?"

Wu Tian's expression was unprecedentedly firm, and he was concentrating on all the changes in the Qiankun Ding at all times, and the true yuan in his body continued to output without interruption......

Time is also passing in the process of Wu Tian being so serious......

Seeing that all the materials in the Qiankun Ding had completely dissolved into liquid, Wu Tian's eyes suddenly lit up, and he suddenly waved his right hand, and he had already prepared a drop of empty cloud spirit liquid to drip into it in time......

The most special thing about the refining of Haokong Dan is that it is necessary to grasp the timing of the dripping of the Empty Cloud Spirit Liquid......

If it is early, it will waste the medicinal effect, and if it is too late, it will not be able to integrate the effect of the empty cloud spirit liquid into other materials, and the control of this timing is one of the most critical parts of whether Haokong Dan can be successfully refined......

Zizizi......

A slight sound spread, and the rich medicinal fragrance instantly spread, like a drop of cold water dripping into hot oil......

"Not good!"

At this moment, Wu Tian's face changed suddenly, and suddenly the entire Qiankun Ding trembled, and then all the medicinal liquid inside erupted instantly, making Wu Tian's expression full of hope extremely disappointed......

"Failed!"

"What's going on? Could it be that I didn't inject the Empty Cloud Liquid at the wrong time?"

Wu Tian frowned, feeling the spiritual fluctuations spreading from the Qiankun Ding, and couldn't help but feel helpless......

"However, I came according to the process recorded in the Yin Yang Dan Sutra, is there anything I don't understand?"

Wu Tian was puzzled, but soon he cleaned up his mind and started a new round of Haokong Dan refining......

Time kept passing, and Wu Tian's refining of Haokong Dan almost didn't stop......

However, the failures again and again made him more and more disappointed, and each time he completely failed when he was dripping into the empty cloud spiritual liquid, which simply made Wu Tian as confused as a second monk......

Sitting in place with hard thought, quietly looking at Qiankun Ding, all the steps when refining the Haokong Pill came to mind, from the selection of materials at the beginning, to the dripping of the empty cloud spirit liquid at the time of failure, I don't know how many times I repeated it, but Wu Tian just couldn't figure out where the reason for his failure was......

As if forgetting the passage of time, Wu Tian was like a wood carving, and he didn't move for a long time......

I don't know how long it has been, but suddenly a wave of mental fluctuations suddenly spread in his mind, making Wu Tian's eyes suddenly light up, and he suddenly exclaimed, "I understand, so that's the case!!"