During the time that Zi Teng was out, Da Zhuang and Zi Yan had already reached the verge of breaking through, and they were only one chance away from fusing the demon soul.

And this human soul pill is their opportunity.

In less than half an hour, I saw the reflection behind the two of them, which was originally an empty and dark space, but with the continuous enhancement of the soul power in the body, a trace of light appeared in this space, and then, a little phantom gradually emerged.

This is the process of the two people's demon soul images that are about to be generated, and it is also the process of transforming the soul power in the body into the demon soul power.

When the soul power is completely transformed into the demon soul power, the demon soul will be completely stimulated, and then it will merge with the soul base.

As time passed, although the images of the two of them were still extremely illusory, they were gradually able to make people see the form of the images.

Needless to say, as a direct descendant of the Zi family, the demon soul that appeared was the Zi family's Huoyun Demon Soul.

As for Da Zhuang, Zi Teng's face was faintly worried.

Although the image of the great demon soul has also appeared, it is not very stable, sometimes appearing, sometimes disappearing, if there is nothing, even the speed of the transformation of the demon soul power is much slower than Zi Yan.

"Alas, although Da Zhuang is diligent, he is much weaker from the foundation, if he can't improve the demon soul, the road ahead will be extremely difficult!"

Seeing Da Zhuang's sweaty and gritted teeth, Zi Teng couldn't help but shake his head and sighed, he could see how much Da Zhuang had paid in this cultivation journey, but the congenital deficiency of this bloodline demon soul was indeed a hard wound for Da Zhuang.

Da Zhuang's bloodline demon soul is an earth-attribute intermediate demon soul, even if he cultivates to the end, it is only good to be able to reach the Heavenly Soul Realm, and in addition to Da Zhuang's own cultivation qualifications, it is even more difficult when fusing the demon soul.

Da Zhuang's ability to cultivate to the peak of the Soul Condensation Stage so quickly also relied on his perseverance and almost masochistic penance.

In fact, Zi Teng was already thinking of a way for Da Zhuang, and he also had an Earth Pole Ascension Soul Bead and an Earth Attribute Demon Soul of the Pan Demon Realm in his hand, which he had prepared for Da Zhuang.

It's just that Yi Dazhuang's current situation is unusable, because his soul base and Ben can't withstand the energy given by these two things.

Just like Zi Ning'er and Lin Ruoxue, the two girls both used the Aoki Soul Spirit Egg and the Cold Water Soul Spirit Egg to strengthen the soul base respectively.

And when Yun Qing used the Wind Pole Ascension Soul Bead, he had also reached the peak of the Earth Soul Realm, and his soul base was already as solid as a rock.

Since the basic demon soul itself is too weak, it is impossible for Da Zhuang to upgrade the demon soul directly like Duan Tianya and Bai Zhiqing, and the only way is to find a way to strengthen the soul base.

And there are only two ways to do this, as far as we are concerned.

The first choice is, of course, to be able to find the Underworld Soul Egg, but that kind of thing is really hard to find.

The second thing to do is to use the "Soul Ascension Yanji Dan" that can strengthen the soul base.

However, this elixir cannot be refined with Zi Teng's current cultivation, because in order to raise the soul base that can only withstand intermediate demon souls to the level of being able to withstand high-level demon souls, it is necessary to refine the corresponding level of Panpin Pill, that is, to reach the Panpin level Soul Ascension Yanji Pill.

And Zi Teng can only refine the earth-grade pill at the highest, because no grade of pill must be supplied with the corresponding amount of demonic soul power, otherwise he will not be able to control the energy of the pill itself.

Therefore, for Da Zhuang, Zi Teng can only take one step at a time, and pay attention to the things that can improve Da Zhuang's soul base as much as possible.

Fortunately, at this moment, the image of the big strong demon soul has been completely revealed, and the fluctuations on his body have gradually stabilized.

Seeing this, Zi Teng breathed a sigh of relief, and then gave Fat Tuo a hand, motioning him to sit down and stare at the situation of the two of them.

Fusion of demon souls requires a process of gradual adaptation and continuous fit, Zi Teng estimates that it will take at least a few hours for Zi Yan and Da Zhuang to completely transform.

Therefore, Zi Teng also planned to use this time to refine some more Human Soul Pills, and in the year of his absence, Fat Tuo and Da Zhuang, including Ning Er at home, could also have enough cultivation resources.

Before alchemy, Zi Teng remembered the situation on Fat Tuo's body again, first looked up and down on Fat Tuo's body, and then asked in a low voice: "Fat man, when you fused the Demon Soul, did you feel that something was wrong? Or when you broke through to the Soul Transformation Realm, did the Demon Soul change anything?"

"Bah...... No. "Fat Tuo also thought about it.

"How is it possible?"

Seeing that Fat Tuo's answer was quite straightforward, Zi Teng was even more confused, frowned, and asked, "Then after you broke through, did you feel anything wrong?"

"Something is wrong? No, ......"

Fat Tuo was also puzzled, but after thinking about it, he said, "Ah, there really is." ”

"Oh? Zi Teng's eyes lit up and he said curiously.

"Uh......"

For some reason, Fat Tuo's face was red before he said it, and he couldn't help scratching the back of his head, and said, "I feel that I can eat it now, does this count?"

"Damn. ”

When Zi Teng heard this, he directly gave the fat tuo a bang, and scolded with a smile: "Stinky boy, what is this? You are already very good at eating." ”

Hearing what Zi Teng said, Fat Tuo seemed to be a little unconvinced, and he was also anxious: "But, but I'm taking pills!"

After speaking, he added: "It's those pills you gave me last time, when I fused the demon soul, I took them all in one go?"

"What?

Zi Teng couldn't help but be surprised when he heard this, he remembered that when he first went to the Diling for trial, he did prepare a lot of pills for Fat Tuo and Da Zhuang, and as soon as Fat Tuo entered Diling, he was directly teleported to the medicine garden, where he had been eating elixir spirit fruits and low-level demonic beasts, and the elixir had no chance to use it.

That is to say, there are a lot of pills left in Fat Tuo, although they are all low-grade pills, they are not a peak of the soul condensation period that can be eaten at one time, even if it is for a breakthrough!

But before Zi Teng had time to ask more, he heard Fat Tuo say again: "It's not just those pills, but also those magic crystals that I got in the underground tomb, I have also eaten a lot." ”

"What, and the magic crystal, can you eat that thing?" Zi Teng was even more shocked when he heard it.

"I thought I couldn't at first, but the pill that my dad prepared for me was not enough, and I was in a hurry to eat all the pills you gave me in one go, but it was still not enough, I had no choice but to take out a piece of magic crystal to try, but how could I have time to refine the magic crystal at that time, so I had to put it in my mouth and hold it. Fat Tuo explained.

"Swallowed the Crystal?"

Zi Teng swallowed and foamed fiercely, and said in surprise: "Fat man, are you a demonic beast?"

In Zi Teng's impression, only the Demon Beast could directly devour the Demon Crystal.

In fact, hearing this, although Zi Teng still felt a little incredible, it could be roughly analyzed that Fat Tuo may have eaten something during the time in the medicine garden, which caused a special energy to accumulate in his body, but it was stimulated when he fused the demon soul, which caused the mutation of the demon soul and had the power to devour.

And that's not all.

According to what Fat Tuo said, those magic crystals he swallowed should have any attributes, doesn't that mean that Fat Tuo can devour any kind of energy at will to strengthen himself?

"Devouring ......"

As soon as he thought of that ability, Zi Teng couldn't help but shake his head and sighed: "This kid, it's really a stupid person with stupid luck, if the demon soul can be stronger in the future, then how much more can it be?" This made Zi Teng secretly envious.

But there is one point, Ziteng sneered, this is another money-burning goods.

Although the power of devouring is strong, there must always be something for him to swallow, right?

Take the current fat tuo as an example, if there are enough resources of the same level, he will not be the current point of cultivation.

Zi Teng had already thought that after he left, he would leave all the low-level magic crystals on his body to Fat Tuo, and he really wanted to see what Fat Tuo would become in a year with these things.

"Fatty, since you have such an ability, you should make good use of it, but don't eat anything far beyond your own cultivation, do you understand?"

After a general understanding of Fat Tuo's situation, Zi Teng didn't forget to tell him, and when he saw Fat Tuo nodding his head like a rattle, he couldn't help but shake his head again and sighed, and then he was ready to start alchemy.

Seeing Zi Teng take out a few more brocade boxes, Fat Tuo was also excited, but this time he consciously gave way to the side, and then focused on Da Zhuang and Zi Yan.

And Zi Teng, this time, directly took out three human yuan fruits.

This Human Soul Pill is different from other pills, it only needs one main medicine, the Human Yuan Fruit, which is nothing more than refining the essence and then condensing it into an elixir, which couldn't be simpler for Ziteng.

And a human yuan fruit can only refine three human soul pills at most, unlike other pills, the best state can produce nine pills.

But if you want to produce nine pills, it also varies from person to person, the more intelligent the level of alchemy, whether it is the number of pills or the quality of the pills, the higher the quality of the pills, Zi Teng took out three human yuan fruits at a time, I think he has enough confidence in this.

When the three Human Yuan Fruits were controlled by Zi Teng and levitated, the Nine Turns Heavenly Flame also reappeared.

As Zi Teng's trick was played, the transparent space appeared, and the flames were scorching......

Three hours passed in a hurry, and when Zi Yan woke up first, Zi Teng's front was already a brocade box thrown to the ground, and the Dan bottles in front of him had been placed in a row.

And when Da Zhuang withdrew from cultivation, the Dan bottle became a pile.

The time it took for Da Zhuang to fuse the demon soul was twice as long as Zi Yan's, that is, six hours.

In these six hours, Zi Teng has become more and more proficient in refining human soul pills, and the human yuan fruits that he obtained in the medicine garden at the beginning, in addition to the ten that were given to Apu and others, the remaining sixty-eight have all become human soul pills, except for the first two only seven pills, the rest are all nine pills, a bunch of medicine bottles, a total of six hundred and eight human soul pills.

"Six hundred and eight!"

Looking at these pill bottles, Da Zhuang and Zi Yan had long forgotten the excitement brought by the breakthrough just now, and the three of them swallowed fiercely, their eyes shining.