Seeing the fifteenth figure slowly walk up to the second floor, Su Tingbai retracted his gaze silently after a long time, and looked at the black scales shining with cold light in his arms in a little stunned, and his thoughts were mixed for a while.

After so many things, Su Tingbai already knew that the arrival of the fifteenth must not be accidental, and it was most likely a fateful arrangement, or it could be said that it was deliberately arranged by Heavenly Dao.

Knowing Su Tingbai's every move, she has a magic weapon that can help her, and even has a lot to do with Chu Yi.

He seemed to know a lot about the past they didn't know yet, but he was full of mysteries......

So, in the past events of Su Tingbai and Feng Cheng, what role does Fifteen play?

Wait, now is not the time to think about this!

Su Tingbai shook his head, quickly came back to his senses from his distant thoughts, took a light breath to stabilize his mind, and then walked up to the second floor quickly.

After her delay, she found that it was almost one o'clock in the morning, Su Tingbai hurriedly glanced at the wall clock on the wall, lifted the woolen carpet in the room, revealing the spell array drawn in advance underneath, and hurriedly placed all the props in her arms in their corresponding directions in turn, lit incense and painted talismans in one go, and finally added the black dragon heart protection scales that Fifteen had just given her, and a powerful spirit gathering array was officially completed.

This spirit gathering array is half a bedroom as big, the whole is a circle drawn with cinnabar, there are many complex and mysterious patterns and symbols inside, Zhen, Li, Dui, Kan, Xun, Kun, Qian, Gen eight directions each have different magic weapons, and the center of the formation in the air is hung with the heart scales, faintly visible wisps of spiritual energy from the eight directions of the formation flow out, connected with the heart scales, forming a large net that envelops the entire array.

After the entire formation was completely awakened, a faint blue light burst out in an instant, and the aura inside reached an unprecedented abundance, Su Tingbai just got closer, and he couldn't help but sigh in his heart, Straight This heart scale is really a good thing. Then she didn't waste much time, stepped forward and carefully helped Feng Cheng up from the bed, let him lie flat in the formation, and she sat down cross-legged on his right side, and after a brief pranayama, she began her formal work today.

*

The preliminary work of changing the demon pill was prepared in a bit hasty, because of the lack of time, Su Tingbai deliberately gradually increased the dose every time he gave Feng Cheng the spiritual power in the demon pill. Fortunately, he has a good physical foundation, and he has always had Su Tingbai's own spiritual power nourishment before, if this is another person who is suddenly made up so suddenly, it is estimated that he will not be able to get out of bed for ten days and half a month.

However, it is not so easy to really change the demon pill, the first step is to transfer most of the energy contained in the demon pill to Feng Cheng, so that his body becomes a temporary spiritual power container, and then send the weakened demon pill into his dantian.

The transfer of molecules from a region of high concentration to an area of low concentration until they are evenly distributed is physically known as the phenomenon of diffusion. Spiritual power, as a molecule that has not yet been discovered by most human beings, is naturally the same. The concentration of spiritual power in the demon pill is low, and the concentration of spiritual power in the body of the seal is high, so when the demon pill enters his body, the spiritual power in the body of the seal will involuntarily rush to the demon pill, when the two reach a balance, it is equivalent to forming a stable and perfect spiritual power storage area in the body of the sealant, every corner of his body will be filled with spiritual power, and these spiritual powers are firmly locked in his body, and the demon pill will no longer easily leave the body and return to the original owner, that is, Su Tingbai's dantian.

In the process of extracting the spiritual power in the demon pill, the original owner of the demon pill not only has to bear the pain and discomfort caused by being out of the body for too long, but also has to pay attention to whether the aura will leak at all times.

Once the aura in the formation is leaked, the slightest mistake is very likely to be wasted, and the reason why Su Tingbai would rather not take a nap and practice quickly these days is that he doesn't want to go wrong in this. However, now that she has the Black Dragon Heart Scales, she can concentrate all her energy on the first step, which is not only a lot easier, but also greatly improves her success.

After making all the preparations, Su Tingbai quickly entered the state, decisively pulled out his divine sense and slowly pushed out the demon pill in his dantian from his body, using his spiritual power to concentrate on it, patiently and meticulously pulling out the spiritual power little by little, and stringing several connected spiritual power lines between it and the seal, and then triggering the effect of urging the flow of spiritual power in the formation, speeding up the speed of spiritual power transmission, so that it could enter the body of the sealant faster.

With the blessing of the Black Dragon Heart Scale, all this went extremely smoothly, and the sealed body did not have any rejection reaction. Seeing that the situation was very good, Su Tingbai's heart finally relaxed a little,

But before her heart could be completely put down, in the next second, Feng Cheng, who was supposed to be asleep, moved suddenly, his fingers curled up suddenly, and he seemed to be a little uncomfortable and snorted, his eyes were still closed, but his eyebrows were tightly frowned.

Su was startled when she heard this, and quickly pulled out a hand to hold Feng Cheng's vein, and when she learned about his physical condition at this time, her heart sank.

Breath disorders, vibrations in the six pulses, mental instability, and all of these happened at the same time in a short instant......

Sure enough, she was still too hasty, no matter how Feng Cheng said it, she was still just a mortal body, how could she withstand the huge infusion of spiritual power in such a short period of time, it was nothing at first, but after accumulating too much at once, the body began to be unbearable.

Glancing at the demon pill that still had half of the spiritual power left, Su Tingbai gritted his teeth, quickly calculated the critical value of Feng Cheng's body's ability to withstand in his heart, slowed down the speed of indoctrination, and extracted the spiritual power used to assist the demon pill to appease Feng Cheng's chaotic and turbulent mind at the moment.

In the end, I don't know how long it took, just when Feng Cheng's body was about to be unable to bear it, Su Tingbai finally stopped the action of transmitting spiritual energy into his body, and extremely slowly pushed the demon pill, which had dimmed a lot, towards the direction of his dantian.

Finally, when the first light crossed the sky outside the window, Su Tingbai completed the entire process of changing the demon pill.

Because she had to take care of both the demon pill and the seal, her spiritual power had already been exhausted, and she dragged the sealant back to the bed with the last bit of strength, and threw everything in the formation into her sleeve in one go, and before she had time to take a look at the heart protection scales that had exploded several cracks, Su Tingbai fell to the bed like this, and fell asleep in an instant.