Ye Xuan took out the identity token and gave it to the steward of the alchemy office, and the steward respectfully led Ye Xuan to the Yellow Rank Alchemy Room.

And explained: "Mr. Ye, these six Yellow Rank Alchemy Rooms, which pay six reward values every month, are not currently used, you can pick one, and then you will settle it after you use it up." ”

Ye Xuan asked, "Aren't Yao Bingshi and Chu Ying refining here?" ”

The steward said: "The two of them are in the Xuanjie Alchemy Area, not in this area. ”

Ye Xuan suddenly said: "Okay, I know, then I'll choose the one on the far left." ”

The steward handed Ye Xuan a token and said, "This is the forbidden token of this alchemy room, you can rest assured that this prohibition is good in terms of defense and sound insulation, you just have to rest assured that alchemy." ”

Ye Xuan took the token, said goodbye to the steward, opened the prohibition of the alchemy room, and walked in.

A one-meter-high Dan furnace is located in the center of the room, and there are four faucets for fire on all sides of the Dan furnace, and there are all kinds of things such as futons and Bigu Dan.

The overall feeling is not bad, Ye Xuan embedded the token into a card slot, the prohibition was activated, and four flames erupted from the dragon's head, and in an instant, a wave of heat filled the alchemy room.

Ye Xuan exclaimed: "What a terrifying vitality, the quality of this alchemy furnace is also much better than that of me in the sect." ”

Ye Xuan took out a part of the Xuanyuan Dan herbs, and after the heat in the furnace reached a certain temperature, he put the herbs into it in turn.

Two hours later, the Dan Cheng, three mid-rank, four lower-rank pills.

After a short rest, Ye Xuan continued to fire the alchemy, and in the blink of an eye, five days passed, Ye Xuan took out some pills and gave them to the manager of the alchemy office, asking him to help exchange the reward value, make up for the lack of reward value in the pharmacopoeia, and then return to the alchemy room for alchemy.

In this way, Ye Xuan repeated the alchemy day after day, exchanged reward values, and studied the pill prescription.

Half a month later, the prison snake woke up, Ye Xuan told the prison snake about the Qinxin mansion, and asked some about the prison snake.

Another half a month has passed, and Ye Xuan's refining Qi Refining Pill has become more and more handy, with the rate of each furnace becoming a pill as high as seventy, and the Xuanyuan Pill and Tuojing Dan have also reached the point of perfection, basically two-thirds of the pills in each furnace are mid-level pills, but this cultivation is still in the seventh layer of Qi training, and there is no improvement, but there is a slight increase in spiritual power.

Ye Xuan set aside the pills he usually needed to use when cultivating, so he replaced all the pills with reward points, and reluctantly paid off all the reward values and spirit stones he owed.

After Ye Xuan paid off all the spirit stones he owed, he felt an inexplicable sense of relief in his heart, and said to the prison snake: "The foreign debt has been paid off, and it has been more than a month, and the remnants still have not made any progress at all, do I really want to stay here for three years?" ”

The prisoner snake said: "If this Danfang is so easy to deduce, it is estimated that it has already been calculated, so don't be frustrated." ”

Ye Xuan said: "I also know that it is not easy to deduce, but I have tried more than a hundred methods, but none of them work." ”

The imprisoned snake said, "Then why don't you learn from other refining pills?" ”

Ye Xuan said: "I also thought about it, but there are so many Danfangs, even if there are them, they are not what I can afford now." ”

The snake said, "Yes, it's like looking for a needle in a haystack. ”

Ye Xuan sat on the futon and pondered, and suddenly a flash of inspiration flashed in his mind, and said: "I'm really stupid, it's better to study what kind of medicinal materials this myelin cleansing pill is made of, it's better to figure out what the use of this myelin cleansing pill is, and after figuring out the use, I will prescribe the right medicine, so that I can push it back." ”

Later, he called Xiao Er and asked him if he had a complete version of the "Copper Skin and Iron Bone" exercises.

Xiao Er replied: "There is a book of "Steel and Iron Bone" exercises in the courtyard, but there is no "Copper Skin and Iron Bone" exercises. ”

Ye Xuan said suspiciously: ""Steel and Iron Bone"? You show it to me first. ”

Xiao Er promised, and it didn't take long to give Ye Xuan a copy of the exercises of "Steel and Iron Bone", and Ye Xuan looked at it.

Then he asked, "How much reward value does it need to redeem this exercise?" ”

Xiao Er said: "Thirty reward values are fine." ”

Then Ye Xuan changed the exercises, and then flipped through them, and was overjoyed after reading them: "It turns out that this is the practice of refining the body, and the previous book of "Copper Skin and Iron Bone" is more like a martial arts secret book, even if you practice according to the original exercises, it is difficult to cultivate to the realm of Dacheng." ”

The previous exercise only needed to be carried out according to the department, and only the method of cultivation was explained, and nothing else. And the exercise book that Ye Xuanxin obtained not only has the method of cultivation, but also has some cultivation perceptions, such as which realm to cultivate, which pill will be more effective, what matters to pay attention to when cultivating, etc., which are extremely detailed.

After Ye Xuan carefully studied this exercise, he sighed with emotion: "It turns out that this is the case, according to the description of the exercise, it is divided into four stages of skin training, bone forging, tendon extension, and finally casting marrow, from the outside to the inside layer by layer, after each layer of cultivation is completed, you can go to the next layer of cultivation, and the cultivation of "Copper Skin and Iron Bone" to the end of the blood and qi retrograde, is because of the lack of a ring of steps to expand the scriptures, directly from forging bones to casting marrow, so the casting of marrow is not successful, but leads to qi and blood retrograde, exploding and dying. ”

The prisoner snake said: "Since the cause of the explosion and death has been found, what use is this for the supplement Dan Fang?" ”

Ye Xuan said: "If my expectations are not bad, this casting marrow is to exchange blood, using the new blood created by the bone marrow to replace the old blood, so the name of this pill is called the Washing Marrow Pill." ”

The serpent said, "I see. So what's next? ”

Ye Xuan said: "Since I have deduced the effect of this myelin cleansing pill, then I can find a pill pill prescription similar to him, and then use the pill prescription to launch the medicinal materials of the marrow washing pill." ”

After finishing speaking, Ye Xuan called Xiao Er again and asked Xiao Er to find two hematopoietic pills for Ye Xuan.

After Ye Xuan took the two pills of "Red Blood Pill" and "Blood Condensation Pill", after getting familiar with the pills, he went to exchange for some of the required spirit grass, and then returned to the alchemy place for alchemy.

After three days of practice, Ye Xuan took two kinds of pills respectively, carefully experienced the changes in his body, and then wrote down and analyzed all these changes.

Ten days later, he exchanged two more blood-forming pills, and he still scrutinized them accordingly.

A month later, after Ye Xuan had clearly understood all the principles and pharmacology of the hematopoietic pill he had redeemed, he began to try to fill in the pill prescription for "Washing the Myelin Pill".

Because in the short period of time that Ye Xuan left the Lieshan Sect, the Lieshan Sect disappeared two disciples of the foundation building period for no reason......