After Ding Qi entered the middle area of the Demon Realm Forbidden Land, Ding Qi sacrificed the Yin Fire Furnace.

He was now in an open field rarely seen in the dense forest, and the Yin Furnace gradually grew larger and rotated slowly in the air under the urging of Ding Qi.

There are quite a lot of holes in the Dan furnace, and there is a faint light on it.

With the injection of Ding Qi's mana, the Yin Flame Furnace quickly became several zhang in size.

There are spiritual patterns flashing on this Dan furnace, and between the turns, the holes of the Dan furnace exude inexplicable power, and all kinds of forces in the forbidden land of the Demon Realm converge towards the Yin Fire Furnace under the echo of the holes.

After approaching the Yin Flame Furnace, these forces were enveloped by the spirit patterns on the Dan Furnace. Most of them were blocked out of the Dan Furnace, and only a very small part of them were collected by the spirit pattern.

A quarter of an hour later, the power that had been gathered by the spirit pattern emitted a faint, faint fire.

"This is the Yin Fire. Ding Qi looked curiously at the glimmer of fire condensed under the power of the spirit pattern, and thought of it with curiosity.

Yin fire is not a rare thing in the immortal cultivation world. In many places where the power of the Yin attribute gathers, there are companions. However, they are extremely dispersed and cannot be used directly, requiring further collection.

Soon after, under the spirit pattern of the Dan furnace, a trace of yin fire condensed was sucked into the belly of the Dan furnace by the hole in the yin furnace and stored.

Ding Qi looked at the Yin Fire stored by the Dan Furnace, and his face was quite satisfied: "At this condensation speed, it will take about a day to fully store." ”

He couldn't use so much to refine a Nian Dan. According to what he knew, as long as the condensation was condensed, half of the reserves of the Yin Fire Furnace should be enough to use.

However, it was the first time for Ding Qi to refine the elixir in the Yin Fire Furnace, and he planned to collect more of them, just in case.

With the first trace of yin fire, it is stored in the Dan furnace. These are the holes of the Dan furnace. The yin fire in the gathered power was gradually extracted.

The time of the day passed quickly.

Ding Qi looked at the Dan Furnace floating in the air, quietly spinning: "The Dan Furnace has been completely filled, and it is time to get out of this forbidden land of the Demon Realm." ”

At this time, the spirit pattern on the outside of the Dan furnace was gathering a trace of yin fire. However, this yin fire, no matter what, can no longer be absorbed by the aperture and enter the Dan furnace.

Ding Qi knew that this was a sign that the Yin Fire was full.

Not far from the Dan furnace. There are several corpses of demon beasts.

On this day, Ding Qi also encountered several demon beasts in this forbidden land of the demon realm. However, these demon beasts are not powerful, and Ding Qi can easily solve them.

After collecting the Yin Fire this time, Ding Qi planned to go to the scattered cultivation gathering places of several nearby countries and buy the remaining spiritual grass for refining Yi Nian Dan separately.

In this way, he could return to the cave mansion of the Yunluo Spirit Vein. Refining elixir.

Subsequently, Ding Qi urged the Yin Flame Furnace in the air. The Dan furnace quickly became smaller and fell into Ding Qi's palm.

He rubbed the furnace and sent it into the brass ring.

After this. Ding Qi quickly left the forbidden place of the Demon Realm and rushed to the few scattered cultivation gathering places that he knew.

A few days later, Ding Qi returned to the Yunluo Spirit Vein again.

After gathering the scattered gathering places of several surrounding countries. After going through everything, Ding Qi will refine the Yi Nian Dan, and all the spirit grass he needs will be gathered.

Inside the cave. Ding Qi took the Yin Flame Stove out of the storage vessel. Then, Ding Qi pinched out one recipe after another in his book, and the lid above the Dan furnace floated above the Yin Fire Furnace with a muffled sound.

Pale cyan flames emerged from the furnace body, rushing out half a foot high.

Ding Qi looked at the flames in the furnace, and pinched out the magic trick in his hand again, and the flames in the furnace floated out from it and gathered under the Dan Furnace Dan.

A flame, raging beneath the furnace.

The temperature of this yin fire is not high, and it is much inferior to the true fire condensed in the body of the foundation building monk, or the spiritual fire of the spiritual fire technique.

Even the temperature of ordinary mortal fire can't catch up.

However, refining a Nian Pill can only be refined with the unique yin attribute power of this flame.

After taking a few glances at the yin stove on the ground, Ding Qi picked up a piece of paper and read it several times.

The content recorded above is the method of refining the Yi Nian Dan.

Ding Qi put down the paper after making sure that there was no mistake in the content he had memorized in his heart and the refining method recorded above.

Subsequently, pieces of spirit grass and jade bottles were taken out by Ding Qi from the storage magic vessel. These things are all things that Ding Qi needs to use to refine the elixir.

When Ding Qi took out the last bottle of spiritual liquid from the copper ring ring, dozens of things were already placed in front of Ding Qi.

This time to refine the elixir, it takes so many things. It doesn't seem to be simple to refine this Nian Dan.

However, Ding Qi didn't seem to be too worried, and he would fail to refine.

"Fortunately, Yi Nian Dan is a rare pill in the world of cultivating immortals, which can become a pill with the method of refinement. Otherwise, with this elixir, the complexity of the materials is not something I can refine. Ding Qi couldn't help but smile when he thought of this.

In the process of refining the general complex elixir, only the monks above the foundation can grasp the timing of adding various raw materials by relying on the divine sense.

Refining the elixir is not a difficult task for a monk who has divine consciousness above the foundation. However, for innate cultivators, the refining process of the elixir was a little complicated, and it was difficult to refine it successfully.

For example, the Gathering Spirit Pill refined by Ding Qi was limited to the pills taken by the innate cultivators, and the refining method was not too complicated, and Ding Qi also failed to refine it at first.

The Nian Pill that Ding Qi wanted to refine used dozens of materials, and it was already obviously a complex elixir. However, the refining method of Yi Nian Dan is completely different from ordinary pills.

The refining of Yi Nian Dan does not have much requirement for the heat of the pill, or the timing of adding various raw materials. Ding Qi only needs to put all kinds of raw materials into the Dan furnace one by one in advance, and then start refining them by hand.

Even the dosage of various spirit herbs, as long as there is not too much deviation. More or less, it will not affect the success of the elixir refining.

This similar method of refining elixir is known as the method of refining in the world of cultivating immortals.

In fact, the main function of this alchemy method is to use a series of auxiliary drugs to quench the medicinal properties contained in the main medicine, and interact with some auxiliary elixirs to condense into Dan.

The changes in the medicinal properties themselves are not as complicated as some other alchemy methods.

This made Ding Qi so confident that he could successfully refine Yi Nian Dan. (To be continued......)