Yes, Yu Wujian changed his words and said back to the point: "I called you over today, I have something to ask you......"

Speaking of this, Yu Wujian paused, and the expression on his face stopped talking.

In this regard, Long Tianchen had already prepared, and he said with a face as usual: "Master, it's okay to ask!" ”

Yu Wujian hesitated for a moment, and finally seemed to have made a decision, he said: "That's the case, the medicine I treated for you last time, it's called Quenching Body San, the recipe was seen on an ancient prescription, and at that time, your serious injuries were cured, and it was obvious that the effect was very good!" But I don't know why, but then I used animals to test the medicine, but all of them died without exception, and they were poisoned, and I don't know what the problem is. So I thought ......"

"Master! You're not going to ask me to test the medicine again, are you? Long Tianchen was a little surprised, he didn't ask about last night.

Yu Wujian shook his head and said, "Of course not! Now that we already know that there is a problem, how can we joke with human lives! The last time I tried the medicine with you, it was only because you were seriously injured and difficult to treat, so I had to do it! Now the situation is that there is something wrong with the recipe and you are cured, and I wonder if I missed a link! For example, is there something unusual about your body, so Quenching is only effective for you? ”

I have to say that Yu Wujian is indeed shrewd and sophisticated, and he is right in one word! Of course, Long Tianchen has something special, he also knows what the problem is, and he also reminded Yu Wujian at that time, obviously Yu Wujian didn't pay attention to his words, or paid attention to it but didn't solve the problem!

"There's nothing unusual about me, could it be that there's something wrong with the recipe?"

"It can't be!"

Yu Wujian shook his head categorically: "The source of the formula is absolutely reliable, it should be that something went wrong in some part of the brewing!" I want to try again, you are on the side to help, this quenching body is scattered, I have to boil it out! ”

"Me?"

Long Tianchen was stunned for a moment, and said, "The disciple doesn't know anything about this, how can he help?" ”

Yu Wujian said: "You were in the medicine at the time, and you felt it most truly, and you must know some subtleties better than me. You don't have to do anything, just watch from the sidelines, and if you think there's something different from last time, just let me know! ”

Long Tianchen wanted to refuse, because it was just a waste of time for him, and it was better to hurry up and recover. However, Yu Wujian had just agreed to let him enter the Heavenly Sword Tower to cultivate, and he couldn't wipe his face for a while. After a moment of hesitation, he asked, "How much time will it take?" ”

"Three days at the least, seven days at the most!"

The time was not too long, compared to being able to enter the Heavenly Sword Tower to cultivate with peace of mind, Long Tianchen felt that it was still acceptable. And he knows where the flaws of the quenching body are, and when the time comes, he will point it out at the right time, and I believe that the time can be shorter.

With this in mind, Long Tianchen nodded in agreement.

"Without further ado, you come with me, and we'll start now!" Yu Wujian acted in a hurry, and after greeting Long Tianchen, he turned around and walked outside the tower.

Looking at Yu Wujian's hurried back, for some reason, Long Tianchen suddenly remembered Bai San's words, his eyes couldn't help but fall to Yu Wujian's buttocks, and a thought couldn't help but pop up in his mind: "Really not wearing underwear?" ”

Long Tianchen shook his head vigorously, threw the absurd thought out of his mind, and followed Yu Wujian away.

Follow Yu Wujian to the cave where he healed last time, a round iron container with a diameter of two meters is placed in the middle, the container is filled with clear water, a tall wooden barrel is placed in the clear water, and the wooden barrel is also full of liquid, there are a few vine-like things floating on it, and the faint cyan juice continues to seep out, slowly dyeing the water into a blue color!

The fire under the iron container was blazing, and a fire-burning disciple stood aside, adding firewood from time to time, the clear water in the container was already boiling, and at this time it was bubbling up, and a wave of heat was emitted, filling the entire cave.

Fortunately, this cave is more peculiar, and the surrounding stone walls and the top are full of transparent cavities, so that the heat can be volatilized, and the smoke will not be dispersed. With Long Tianchen and Yu Wuji's ability, there was naturally no uncomfortable feeling when the true qi was running, but that fire-burning disciple was only a three-ding cultivator, but his brain was so hot that he sweated, and from time to time he was choked by the smoke and coughed a few times.

It seems that Yu Wujian is prepared, and the boiling and quenching powder has already begun.

Yu Wujian didn't speak, just stood quietly, Long Tianchen didn't know what to do, so he had to stand aside.

After half an hour, the water in the barrel finally boiled, and the vine-like matter completely melted, and the barrel was green and quiet!

"A total of 18 kinds of medicinal materials are required to boil and quench the body, among which the green vine must be boiled with cold water, which is mild in medicinal properties and is often used as medicine or neutralization! Next, you can put in other medicinal materials, first of all, three-color flowers, which have the effect of invigorating blood and soothing tendons. ”

As he spoke, Yu Wujian picked out three plants with red, yellow and green leaves from the pile of medicinal herbs on the side and threw them into the medicinal solution, and then instructed the fire burning disciples to increase the fire, and the medicinal liquid boiled more intensely, and the three-color flowers quickly sank away.

However, Yu Wujian didn't make the next move, just watched quietly.

It didn't take long for the red, yellow and green three-colored liquid to spread along with the boiling water, and the original cyan penetrated into each other, and the hissing sound sounded continuously, and from time to time there were several waves in the barrel rushing up the water column.

After half an hour like this, the abnormal noise disappeared, the four colors of blue, red, yellow and green also stabilized, and Yu Wujian began to invest other medicinal materials again.

In addition to the green beard vine at the beginning, the next seventeen kinds of medicinal materials, for each one, Yu Wujian will explain the name of the medicinal materials and briefly introduce their functions.

Long Tianchen is a little white in this regard, what Yu Wujian said, he didn't ask for much understanding, just write it down.

Yu Wujian does not only put in one herb at a time, sometimes he will also put in two or three at the same time, the interval is different, some only need one stick of incense, and some are one or two hours apart.

Although Long Tianchen was a layman, he also saw that the time of putting in medicinal materials was very particular, because every time Yu Wujian carefully observed the color of the medicinal solution and the amount of various medicinal gases evaporating on it to determine the time of application. And the fire requirements are also very strict, sometimes it needs to be hot, sometimes it is warm, and the disciples who burn the fire are sweating profusely!

When all the eighteen medicinal herbs were put into the barrel, the whole day passed like this, and it was completely dark.

The liquid medicine in the wooden barrel has been reduced by half because of the evaporation of water vapor, and the liquid medicine is colorful, slimy, gurgling and tumbling, and all kinds of medicinal gas on it are diffuse, and it looks foggy, just like when Long Tianchen was injured and soaked.