The alchemy on both sides was in full swing, and the movements on both sides attracted everyone's amazement.

In the immortal realm, most people know some Dan Dao truths, and they can even refine some superficial pills. Chen Feng and Ren Danshi's series of fire-controlling duels are all breathtaking.

Non Dan Shi obviously also has an extremely excellent Dan Dao inheritance, the fire control method is exquisite, and the control of flames is also like an arm.

"It seems that the origin of this Nondan Master is probably not ordinary!" Gong Xuan thought to himself in his heart, and his eyes became wary when he looked at the Nondan Master.

"However, this Chen Feng's fire control hand duel is even more exquisite, and it is probably not a simple existence to be able to create such a fire control hand duel!" Gong Xuan thought again in his heart: "This time the dragon fights, and it is not known who will kill the deer." ”

It's just that the materials Chen Feng chose were too poor, which also made Chen Feng's winning chance directly less than 30%. After all, in refining elixir, technology is important, but materials are also an indispensable link!"

Gong Xu's thoughts, Chen Feng naturally wouldn't know. At this moment, he was completely immersed in refining the elixir.

This time, what he wanted to refine was a poison pill called the Heart Devouring Pill. This kind of heart-devouring pill is a pill that comes from the inheritance of Taiqing Daode Tianzun, and it is a pill that has never appeared in the fairy world.

The reason why it has not appeared in the immortal realm is not because this Heart Devouring Pill is too difficult to refine, but because the toxicity of this Heart Devouring Pill is too special, and even if it is Taiqing Daode Tianzun himself, he can't develop an antidote!

What's more important is that the materials of this Heart Devouring Pill are also very common, and if you know the refining method, ordinary third-level alchemists can easily refine it.

Back then, when Taiqing Daode Tianzun created this elixir, he was afraid that once the pill of this Heart-devouring Pill spread, it would cause immeasurable harm to the immortal world. When the time comes, an alchemist who can refine the Heart Devouring Pill will even be able to poison some Nine Heavens Xuan Immortal-level cultivators. At that time, the immortal world will be panicked, even if it is a Nine Heavens Xuan Immortal powerhouse, he must always be on guard whether he will accidentally eat the Heart Devouring Pill.

In order to prevent such a thing from happening, Taiqing Daode Tianzun did not pass on the Dan Fang of the Heart Devouring Pill, but only recorded it in the inheritance.

Before, Chen Feng thought about it in every possible way, and finally decided to refine this Heart Devouring Pill. Just because Chen Feng has been refining pills over the years, he has learned very few poison pill refining methods, and most of them have been obtained in the cultivation realm, so naturally they can't compare to the background of the non dan master.

In the battle of life and death, how could Chen Feng joke with his life?

The Dan fire is rolling, can you hear the roaring sound coming from the alchemy furnace?

Everyone's breathing was very slight, and they were afraid that someone would accidentally disturb the performance of the two fourth-level alchemists.

In this way, time passed little by little, and in the blink of an eye, more than an hour had quietly passed.

On that side, the momentum on Nondan Shi's body suddenly shook, and then he saw him play the mantra of receiving Dan with a red face.

I saw the Dan furnace open, and a purple-black pill flew out of the Dan furnace, and was grabbed by the non Dan master with an immortal yuan.

Then, when Master Nondan's hand moved, he saw a jade box taken out by him. The jade box opened, and the elixir was carefully placed in the jade box by the non Dan master. From beginning to end, Master Nondan didn't even touch the elixir.

The pill fell into the jade box, and the color of the jade box changed rapidly, and suddenly it became pitch black as ink.

"It's so poisonous, if the jade box touches it, the poison actually penetrates into it, no wonder this non dan master didn't touch it with his hands from beginning to end!"

"Hmph, my elixir has been completed!" Ren Danshi snorted coldly at Chen Feng, and said mockingly: "When will your elixir be good, but it won't take more than two hours to be good." ”

Chen Feng stared at Tian Danding intently, and the fire control hand in his hand did not stop, but his mouth responded with no saltiness: "What's the hurry? Since the regulation is two hours, as long as I don't exceed it, you and I will not be able to distinguish the winner or loser!"

Master Non Dan looked at Chen Feng coldly, but he didn't speak again.

Gong Xu, as a referee, was also the time to express his position at this time: "What Elder Chen said is right, Dan Dao martial arts, as long as the pill is completed within the specified time, it is not considered a failure." Now there is still more than half an hour before the end, and Elder Chen himself will grasp the time!"

"Hehe, I'll let you live for a while!" With a hideous face, Master Ren Dan sat up on the spot and observed Chen Feng refining the pill.

Knowing oneself and knowing the other, if Chen Feng refines the poison pill for a while, both sides will have to take the other party's pill. At this time, if you look at it a few more times, you will always be able to see the name.

It's just that he forgot that Chen Feng's materials have already entered the Tiandan Ding, even if the Nondan Master wants to steal one or two, it is impossible. I had to snort coldly, close my eyes and wait.

Chen Feng's movements were unhurried, as if there was no anxiety at all. The fire control hand fought smoothly, making the Xuan Lonely Purple Flame in the Tiandan Ding roar endlessly.

Time passed again, and in the blink of an eye, the two-hour deadline was extremely close. Those who were originally optimistic about Chen Feng were all hanging in their hearts.

At this time, Master Nondan's face also showed a sense of pride: "There is only a little time left, you probably won't be able to refine it!"

"Who said that?" Chen Feng said quietly: "My Dan has also become!"

While speaking, Tian Danding roared, and saw Chen Feng's hands make a move, and a white pigeon-egg-like pill flew out, and was grabbed by Chen Feng in his hand.

"Since it is a poison pill, and you dare to hold it in your hand, this shows that the toxicity of this pill is not strong! I will win this competition!" Seeing this, Master Nondan's heart was settled, and he couldn't help but show a smile on his face.

At this moment, Gong Xuan also spoke: "It's time!"

At the same time, the hourglass suspended in mid-air dropped the last drop of sand.

Everyone's expressions were awe-inspiring, and their eyes turned to the two fourth-level alchemists.

The time to decide life and death is coming!

"Now, the two sides exchange pills!" Gong Xu's expression was grim, and he slowly spoke: "Each side has two hours to study each other's pills and configure the antidote. After two hours, regardless of whether the antidote is configured or not, the elixir must be taken!"

Both nodded their heads in understanding.

"Now, you can exchange antidotes!" As he spoke, Gong Xu's hand flipped over, the hourglass turned up and down, and the timer began again.

Chen Feng and Ren Danshi's eyes were both cold, and the moment to decide life and death had come!

Tomorrow, the teaching and research department will come to our school for research, and the teaching and research staff will listen to my class, so I have to prepare a public class temporarily, and it is estimated that it will be one or two o'clock in the morning, so I can only write a chapter and pass it on to relieve my hunger. Kneel down and beg for understanding!!!! (Anyway, it's really okay for me to take public classes!)