Lin Mu had never tried this method since he got the experience of this pre-Qin Qi practitioner, and this time he had the opportunity, Lin Mu naturally wanted to try it.

Moreover, Tian Yuan Dan is the most common of the fifth-level pills, and the difficulty of refining is not great, just enough for Lin Mu to experiment.

The conference provided each contestant with enough medicinal materials to refine two copies.

Two servings of medicinal herbs may not seem like much, but there are more than 100,000 people here, and that is more than 200,000 servings.

Even if Xijizhou is rich in medicinal herbs, it is not easy to gather these more than 200,000 servings of medicinal materials.

And don't look at the two copies prepared here, but for most Dan masters, these two copies are not enough at all.

Because alchemy itself has a failure rate, and the more advanced the pill, the higher the failure rate.

Generally speaking, the failure rate of Wupin Pill is about half. If this Dan Master is experienced enough, two pills will be enough. If you fail, then you don't need to go to the next round, and even if you do, you will still be eliminated.

With a wave of his hand, Lin Mu put a pill directly into the Dan furnace in front of him.

The Dan furnace and flame in the first level are all provided by the craftsman's union. Of course, you are willing to use your own Dan furnace and flame, and no one cares about you, but Lin Mu doesn't want to expose his heavenly fire at this time.

Although there was no monitoring array in the middle of the release, Lin Mu was still willing to sail the 10,000-year-old ship carefully

While controlling the flames and melting the medicinal materials in the Dan Furnace, Lin Mu used the Divine Sense Knife to leave a formation pattern of a spirit gathering array in the melted medicinal liquid.

This thing is not easy to say, but it is extremely difficult to actually do.

Because Lin Mu not only had to control the flames to melt the liquid medicine on the one hand, but also had to control the Divine Sense Knife on the other hand, and carve the formation patterns on the liquid medicine.

This dual-purpose is already very difficult, and neither of these two aspects can be wrong, because whether it is a mistake in the control of the flame or a mistake in the depiction of the formation pattern, it will eventually lead to the invalidation of the elixir in this furnace.

In less than a quarter of an hour, fine beads of sweat could already be seen on Lin Mu's forehead.

And in just such a short period of time, Lin Mu already felt the exhaustion and emptiness of his divine sense.

"It seems that the divine consciousness cultivation of the pre-Qin Qi cultivator has definitely reached an extremely high height. After experiencing it firsthand, Lin Mu realized how difficult it was.

Another half an hour passed, the liquid medicine finally melted, and the formation pattern of Lin Mu's carving was also completed.

However, when it came to this, Lin Mu still did not relax in the slightest, because Cheng Dan was the most critical moment.

Especially now Lin Mu not only wants to become a pill, but also to fuse the formation patterns in the medicinal liquid to make it really work, this step is the key among the key. Otherwise, even if it becomes a pill, this furnace of pills will be wasted.

"Condensation!"

Lin Mu took a deep breath and pinched Cheng Dan's hand.

Lin Mu looked at the constantly fused Dan liquid, and he was also very nervous. After all, this was the first time for him to refine the Dan according to a new method, and if he succeeded, then Lin Mu's Dan Dao cultivation would most likely enter a new realm from now on.

Moreover, Lin Mu will also become the first person to create an era, because although the pre-Qin Qi cultivator came up with such a method. But before he could really succeed, he was already dead, so Lin Mu was the first person to experiment with this method.

Seeing the continuous fusion and blending of the Dan liquid, Lin Mu was also relieved.

"Boom!"

However, at the moment when the elixir was about to take shape, the elixir suddenly exploded.

"Humph!"

The pill exploded, and Lin Mu also snorted and took half a step back.

Looking at the scorched Dan furnace, Lin Mu also sighed in his heart.

"Hey, it's just a little bit!" Lin Mu was also very sorry in his heart, seeing that he was about to succeed, but he fell short at the last moment, such a thing would be uncomfortable for anyone.

"Could it be that the formation pattern is carved too deeply?" Lin Mu muttered as he stood in front of the Dan Furnace and looked at the scorched patch.

"Boom!"

"Boom!"

But then, a series of explosions disrupted Lin Mu's thoughts.

There were hundreds of explosions, which meant that hundreds of people had exploded to refine the pills.

"Why have so many people failed?" Lin Mu frowned when he heard the continuous explosions.

Lin Mu has seen that among the Dan Masters who came in with him, there are also some Dan Masters who are close to, or even surpass the Five Rank Dan Masters.

The reason why they didn't directly enter the second round was because they didn't want to be exposed, and on the other hand, because they weren't on the register and couldn't prove their alchemy cultivation.

It stands to reason that even if there is a 50% probability of failure, it is impossible for so many people to fail at the same time.

In the end, Lin Mu set his sights on the medicinal materials provided by the craftsman union to himself and others.

After inspecting the same medicinal materials as the forest trees, I finally found the greasy in the medicinal materials.

Lin Mu took out an inconspicuous red fruit from a pile of medicinal herbs and said, "I see. ”

This red fruit is called a burst fruit. It is indeed one of the essential medicinal materials for refining Tian Yuan Dan, and the reason why Tian Yuan Dan can instantly replenish spiritual energy is mostly the reason why it explodes instantly.

But there are two kinds of popping fruits, one is this dark red, and the other is light red.

The dark red color is of course the best, but it is also difficult to find. However, the crimson ones are also the most difficult to control. Moreover, the dark red one must also be refined separately first, and the explosiveness in it can be fully stimulated before it can continue to be used in medicine. Otherwise, the excitation will not be complete, and the final result will be explosive.

And Lin Mu failed just now because he didn't fully stimulate the explosiveness in it.

In fact, this is mainly because Lin Mu is sloppy, in his opinion, the craftsman union will not do anything about medicinal materials. And the crimson one is hard to find, and the craftsman's union will not be so wasteful.

But it was this kind of inherent thinking that led to the failure of Lin Mu's first alchemy.

After discovering the reason for the failure, Lin Mu did not stop and directly started the second refining.

This time, Lin Mu first refined the burst fruit into a slurry, and then used the characteristics of the flame to fully stimulate the bursting nature in it.

Then he put the other medicinal materials into it one by one, but this time the forest trees were very careful, and each medicinal liquid forest tree was carefully examined, until it was determined that there was no problem, and then he continued to start refining.

With the experience just now, Lin Mu is much more familiar with the road this time.

However, the consumption of divine consciousness has not decreased in the slightest because of the light road of the forest.

The time given by the first level of the craftsman's union is two hours, and it has already taken more than half an hour just now, and this has taken more than half an hour.

But fortunately, all the formations and elixirs have been completely melted.

"Condensation!"

Lin Mu took a deep breath and pinched Cheng Dan's hand again.

The liquid medicine and the formation pattern surged in the Dan furnace, and in front of the forest trees, little by little, it condensed into a round pill.

"Buzz!"

Finally, the liquid was shocked, and it was finally condensed into eight pills that were not very good-looking.

Lin Mu grabbed the eight pills in his hand.

"The appearance is a little worse, and it's just a high-grade pill, not a high-grade pill. Just practice a few more times and you should have no problem. Lin Mu looked at the eight pills and muttered to himself.

In fact, it is not easy to succeed the first time, after all, the method of forest experiment is a cross-era method for the Dan Dao realm, and it is already very difficult to succeed.

Lin Mu put the eight pills into a jade bottle, and then put them in a array plate in front of the pill room, and let the array plate transmit the pills to the judges.

Lin Mu finished all this, and the time was just right.

Lin Mu came out of the Dan room and saw many people, all of whom were disgraced and depressed.

Obviously, these people were all people who didn't find the problem in the medicinal materials, and the two alchemy attempts ended in failure.

Defeat means that they have lost the opportunity to continue fighting.

Of course, there are people who succeed, but there are very few of them.

And not only that, there are many people who can't help but have no damage on their bodies, and their expressions are also complacent. Apparently they found out about the problem with the herbs in the first place.

"It looks like it's all Hidden Dragons and Crouching Tigers there. Lin Mu glanced at it, and those who succeeded the first time also raised some vigilance in their hearts.