On the day when he practiced the Bone Tong Dan, Long Chen asked Meng Qi, Chu Yao, Tang Wan'er, Lu Fang'er and Gu Yang to take it as soon as possible to assist in the medicinal power and open up all the tendons of the bones.

The bones are connected by tendons and veins, but they only link external bones, and the bone marrow part of the bone is connected to blood vessels.

However, to sacrifice the bones, especially for the whole sacrifice, relying on the input of blood vessels alone is far from enough. A channel must be opened up in the tendons and veins to reach the depths of the bone marrow.

The power of this type of elixir can be directly injected into the bone marrow through the tendons and veins, nourishing the bones at the fastest speed and facilitating the absorption of the bones.

This speed is hundreds of times faster than the blood output speed, so those who reach the bone sacrifice realm all open a channel on the tendons and veins to sacrifice and refine bones.

Generally, strong people in the bone sacrifice realm sacrifice to refine their bones one by one. Each time they only need to open up a vein, so the bone-opening pill they use is enough, even the more garbage low-grade pills they use are enough.

Long Chen chose the full sacrifice, which must be opened at one time to open up all meridians and connect all bones. Then he gritted his teeth and used the Qilin Fruit as the main medicine to refine the bone-opening pill. Otherwise, the medicine will not be able to reach the power and cannot be penetrated at one time, which will be troublesome.

However, with Fengque Zi Yan and Qilin Fruit, the bone-opening pill refined by Long Chen is only a fourth-level mid-level, which is also the best among the middle-level, and can be compared with the fourth-level top-level pill, which is enough for them to open up the passage of tendons and veins.

During the period when the four women took the pills and went into seclusion, Long Chen did not delay at all and began to practice.

Swallowed a large amount of Sanhua Tongjin Pill, and at the same time opened the divine ring to absorb the spiritual energy from the outside world, assist in the practice, and take a two-pronged approach.

Three days later, when Meng Qi and others refined the pills, Long Chen also entered the fourth level of Yijin. Long Chen discovered that eating pills while practicing would make the practice twice the result with half the effort. Unfortunately, he didn't have so much time to practice.

Meng Qi and others did not accidently open up the tendons and veins in their bodies. This must be thanks to the powerful medicinal power of Qilin Fruit.

In the past three days, Guo Ran also broke through to the bone-forging realm, but it was just a breakthrough, so Long Chen needed to consolidate his realm before he could take the Bone-Tong Pill, otherwise the foundation would have flaws.

And Aman and Long Chen secretly handed over the corpses of Fengman Beast and Ziyu Fengque to him, and asked him to go away and find a hidden place to eat them. Never let the little Ziyu Fengque see them.

Aman ran away with two huge corpses excitedly. Long Chen told him to eat the purple-feathered phoenix bird first, eliminate all the evidence of the crime, and then deal with Fengman Beast.

These are two powerful fifth-level monsters, and they have ancient bloodlines, which are much stronger than the fifth-level monsters outside. For Aman, this is like a timely help.

Although time was tight and Long Chen did not carefully check Aman's body, he still felt that some kind of power was slowly awakening in Aman's body.

This made Long Chen more and more convinced that Aman is a barbarian. They don’t need to practice, they just need to eat constantly to become the strongest warrior.

There are probably only barbarians like this kind of a terrifying race. Long Chen fought for two corpses so desperately for Aman. What he needed most was flesh and blood.

The flesh and blood of the two monsters were handed over to Aman, but their bones were left by Long Chen because their bone marrow was the essential raw material for refining bone sacrificial pills.

There is violent energy in the bone marrow of the monster. Long Chen needs to eliminate the violent power in the bone marrow, leaving the most essence, and making the raw materials for the bone sacrificial pill.

The quality of the bone sacrificial pill is often related to the quality of the main medicine. Long Chen believes that the bone sacrificial pill refined with the bone marrow of the two ancient monsters is definitely much better than the bone sacrificial pills sold on the market.

During the time when Long Chen extracted bone marrow and refined marrow powder, Long Chen arranged a task for Guo Ran, Tang Wan'er and others. He gave six people seven pill recipes to see which pill recipe they could get together in the medicinal materials in their hands.

These seven pill recipes are all recipes for bone sacrifice pills. Long Chen knew seven different recipes based on the Dan Emperor's memory. If this news spreads, it will definitely make the outside world crazy.

Because in the outside world, there is only one kind of prescription for the bone sacrificial pill, the medicinal materials for the bone sacrificial pill are extremely scarce. Major sects are desperately planting, but the supply is still in short supply, and the price of the bone sacrificial pill has always remained high.

This is why countless powerful bone-forging experts can only sacrifice one to two bones, because the price of bone-sacrificing elixir is too expensive, so expensive that it is unbearable.

Just because there is only one type of elixir recipe, the consumption of the medicinal materials on it is too high and the supply is in short supply. Even if you work hard to plant it, you cannot meet such a large demand.

Because the medicinal materials on the bone sacrificial pill will take at least more than a hundred years, otherwise the medicinal effect will not be met and will not meet the requirements.

Long Chen wrote seven pill recipes in one breath. If he said it, it would definitely shock the entire alchemy world.

However, the five people in front of him were all the people Long Chen trusted the most, and Long Chen was not afraid of this secret being leaked.

"Boss, you can only get three of seven pill recipes. According to the amount you said, it may be less than a thousand portions." Guo Ran said with some concern.

Although Guo Ran does not understand the art of alchemy, he knows basic common sense. It is good enough for a normal alchemist to be able to refine two to three finished elixirs.

Only at the master level, you can refine four to five finished pills in one furnace of pill, and it depends on a certain amount of luck.

And those so-called masters are old guys who have been practicing pills for a lifetime, and they are so experienced that they have such a high success rate.

Since there is a success rate, there is a failure rate. Once it fails, the entire furnace will be smashed away and even a single hair will not be left.

So even if one thousand portions of medicinal materials can be refined into three thousand finished pills, it is an extremely amazing success rate.

Three thousand bone sacrifice pills are enough for one person to sacrifice and refine eight bones, but Long Chen asked everyone to choose the full sacrifice. This little pill is obviously a drop in the bucket, so everyone was in a very serious mood.

"Haha, don't worry, I said, I belong to me, you just need to practice with peace of mind.

Three thousand ordinary pills are really nothing, but three thousand fourth-level top-grade pills are different." Long Chen said with a smile.

"Fourth-level top-grade? Can you do it, boss?" Guo Ran was shocked.

"Boy, remember in the future, don't question whether I can do it. This is extremely insulting to a man," Long Chen warned.

"In terms of refining techniques, this bone sacrificial pill is much simpler than the bone sacrificial pill. I am sure to refine the top-grade bone sacrificial pill.

Alas! Unfortunately, this alchemy furnace is too trash and dare not use it with all my strength, otherwise I would have the ability to refine a top-grade alchemy with gorgeous patterns." Long Chen sighed.

Although there are still some alchemy furnaces in my hand, they are all garbage alchemy furnaces. I dare not use them with all my strength, otherwise I will explode the furnace.

Long Chen has not yet achieved it. He can use the alchemy fire as the furnace. Without the alchemy furnace, he can do nothing, so he can only practice it.

"I'm going to start refining elixirs during this period. Meng Qi and Gu Yang, you five are in seclusion with me. I have refined the bone sacrificial pill, and you will immediately start refining bones." Long Chen said.

"Then what am I doing?" Guo Ran asked.

"You are responsible for protecting us. In addition, during this period, brothers from other courtyards will come one after another. You are responsible for picking us up," said Long Chen.

Gu Yang suddenly interrupted and said, "Why don't I be with Guo Ran. If an enemy comes, there will be a way for both of them to take care of you. I feel that someone is secretly peeking at us."

Long Chen pondered for a moment, nodded and said, "That's fine, I have noticed those who secretly peek at us. You don't have to pay attention to it. It should be spies from some forces.

They just come to wait and see, and don’t dare to take action. If they dare to come out to provoke, remember one word - kill, kill without mercy.

From today on, anyone who maliciously provokes us will be killed directly. Regardless of the good and evil, I will be assured and bold as I can kill you!”

"Okay, just wait for the boss's words, Mad, these bastards should teach them some lessons, otherwise they will always treat us as soft persimmons," Guo Ran said with some urgency.

Long Chen glanced at Guo Ran and reminded: "Now don't show off, don't go out to provoke others, and consolidate your state as soon as possible if you have time."

"Hehe, boss, look at what you said, is I, Guo Ran, such an ignorant person?" Guo Ran said with a flattering smile.

However, Guo Ran was really guilty because he had an idea just now, that is, after Long Chen went into seclusion, he would draw out the people who secretly peeped at them one by one. Otherwise, he would be idle and always wanted to find something to do. After Long Chen reminded him, he had to give up his original idea.

"Gu Yang, look at this kid. Now is not the time to talk nonsense. There will be a shocking battle soon. This is related to whether we can leave the secret realm alive." Long Chen said to Gu Yang that compared to Guo Ran, Gu Yang is still relatively stable.

"Boss, don't worry, I will look at him." Gu Yang nodded. Now Gu Yang is like Guo Ran, calling Long Chen the boss, and thinks this title is more intimate.

"Well, I still have four bone-opening pills here. Brothers who have broken through the bone-forging realm are here. You can ask them to open up their tendons and veins first.

At that time, Meng Qi and the others should have sacrificed some of the bones, and then they come out to protect you. Everyone will take turns to sacrifice bones, so that they will not waste time," Long Chen reminded.

"We understand," Guo Ran and Gu Yang said with a serious face.

After giving instructions to the two, Long Chen took the four girls into the tent. The entire tent was ten feet in a radius and was very spacious.

Tang Wan'er had previous experience in refining alchemy with Long Chen, and told the three of them how to assist Long Chen in refining alchemy and how to sort and put the refined powder into a bottle.

With four people assisted, Long Chen didn't need to care about anything, he just needed to refine portions of the medicinal materials into powder.

Most of those herbs are fresh, and their essence has not been lost much. They are full of medicinal properties. Coupled with the strength of purple flames, all medicinal properties are firmly locked in the powder, making Long Chen feel much more comfortable.

However, the workload is very large, and nearly a thousand portions of medicinal materials need to be refined. Long Chen spent a whole day busy before he was finished.

This is still the help of Zi Yan. If it was the previous beast fire, it would not be able to be completed in a month, and it would also lose a lot of medicinal properties. Long Chen liked Zi Yan from the bottom of his heart.
Chapter completed!