Su Huan had studied the contents of the Nest Calamity's Egg Soul Replacement Plan recorded in the Old Dragon Codex.

However, the top researchers of the human race, in the long process of studying the soul replacement plan of the nest plague egg, have obtained some useful secondary research results in advance before reaching the final results.

That is, the soul replacement plan of the second-level calamity nest creation involving the main brain, the stem brain, the split brain, and the branch brain.

Su Huan's purpose this time is to complete the soul replacement plan for this brain, let the ice cave ghost replace the soul of this brain, and completely realize the control of this brain through the ice cave ghost that has been subdued by himself and established a spiritual bond.

Although the Brain does not have the perverted ability to create an army of Hive Plague, the Branch Brain controls an army of Hive Plague created by the Hive Nest.

However, once they are replaced by the pet of the human master, not only will they become beings similar to the pet of the human master.

It will also retain complete control of its army of Hive Plagues.

In the process of realizing the plan to replace the soul of the branch brain, all the connection between the branch brain and the superior division brain and even the supreme master of the disaster nest will also be completely severed.

As the hub of the first-line nest plague army of the plague nest control, as this connection is severed, the connection between the nest plague army under its command and the higher-level control units will also be severed.

That is to say, as long as Su Huan successfully captures this brain, the army of the nest disaster controlled by the branch brain will completely lose contact with the disaster nest.

Under the layers of control of the control units at all levels of the nest of the disaster, it is completely out of control and is only controlled by the brain.

Subduing the Zhina, so as to control this nest disaster is Su Huan's ultimate goal, but the role of the branch brain itself is dispensable.

However, it is not easy to successfully realize the distracted soul replacement plan.

First of all, it is necessary to subdue a ghost horror species that is at least mature, and act as the main body to replace the soul of the branch.

There are only dangerous creatures of the ghost type, and they are the most proficient in the mysteries of the soul.

Soon, the Ice Cave Shadow had already integrated the soul body into the body of the Zhi Brain.

In the brain domain of the branch, the Ice Cave Shadow saw a scene that shocked it greatly.

The brain domain is the sustenance of all souls, and it is also the place where all thoughts and hearts are located.

As dangerous creatures of the ghost type, entering the brain domain of creatures is almost an innate ability.

There are also ordinary people who call this ability possession.

However, if the target's soul power is too strong, once the ghost enters its brain domain, it is likely that it will never be able to come out again.

Therefore, ghosts are usually reluctant to enter the brain domain of powerful beings at will and face the soul bodies of living beings.

Originally, as the soul body of the mid-level horror species, it was also the place where the Ice Cave Shadow tried its best to resist and face.

However, the soul of this branch brain was in a state of sleep at this time, which gave the Ice Cave Shadow the courage to enter its brain domain.

Unlike ordinary fainting and loss of consciousness, even if a living being is no longer conscious, its soul can never sleep, and the soul and consciousness are two completely independent and different components.

It's just that most living beings don't have the talent for souls, so they can't use or even perceive the existence of souls at all.

This leads to the frequent fallacy of mistaking soul and consciousness for oneness.

The way the soul is presented is usually very much related to the appearance of the living being, and this is the so-called "birth from the heart".

But at this time, the soul that appeared in front of the shadow of the ice cave was an out-and-out monster.

It's as simple as the branch brain, and the image is completely different.

A twisted fusion of countless hideous and crazy souls, stitched together, it is like an indescribable thing made of a pile of wriggling insect repellents, full of twisted, weird, and evil aura.

Even the Ice Cave Shadow, a perverted race that feeds on living souls, is insignificant in the face of this existence.

What made the Ice Cave Phantom Shadow breathe a sigh of relief was that the twisted soul in front of him was indeed in a state of deep sleep as Su Huan said.

Otherwise, with the powerful soul fluctuations that the other party naturally exudes even in a deep sleep.

The Ice Cave Shadow felt that it might be easily devoured by the other party's soul, and it also merged into the large, twisted figure.

Be a part of the other person's twisted soul.

"Ice Cave Shadow, do you see the soul of the brain?" A voice suddenly reached the heart of the Ice Cave Shadow.

"Quack!" The Ice Cave Shadow indicates that it has seen the twisted soul and can move on to the next step.

At this time, Su Huan, who was standing next to the body of the brain, had already taken out a large number of bottles and cans to sharpen his knives.

These things are all materials that Su Huan prepared for himself to successfully capture the Zhi Brain this time.

After Su Huan got the response of the ghost of the ice cave, he immediately took out a large bottle of dark purple liquid medicine and poured the branch brain from the sky to the end.

The purple liquid was extremely corrosive, and as soon as it was poured on the brain, there was a corrosive sound.

But there was no trace of corrosion left on the brain.

The liquid medicine also seems to be absorbed into the body of the branch brain.

But Su Huan knew that this special solution called "Alien Soul Detachment" was not absorbed by the body of the branch brain, but was integrated into the brain domain of the branch brain, and the medicinal effect was also used on the soul of the branch brain.

The effect of this solution is to separate all the abnormal souls in the living beings' bodies from the main soul body.

As the "alien soul detachment" invaded the brain domain of the branch brain, the abnormal soul bodies on the soul body of the branch brain that were sewn into its main soul body fell off from the main soul body of the branch brain one after another, just like the dust on the table and chair that was poured down by a basin of water.

The abnormal soul body all fell off, and after receiving the report from the ice cave ghost, Su Huan opened another bottle of solution again and poured it on the body of the brain.

This bottle is the "Alien Soul Dissolving Liquid".

The effect is to dissolve the alien soul that has escaped the control of the main soul body into the original soul source.

Soon, a large number of abnormal souls that had detached from the main soul body of the branch brain were all disintegrated into a black translucent amber-like soul origin.

The phantom shadow of the ice cave immediately pounced on the soul origin, devouring a large number of soul origins like a whirlwind, and while the aura of the whole body became a little stronger, the body size also expanded several times.

At this time, the main soul body of the branch brain was still in a state of sleep.

The bottle of "Brain Soul Sleeping Liquid" that Su Huan initially let the Zhi Brain forcibly swallow was a strange medicine that future researchers had researched specifically for the soul of the Zhi Brain.

It is only when the soul of the branch brain is completely about to be replaced that it may awaken from the powerful effects of the sleeping fluid.

Su Huan took out a bottle of potion again and poured it into the mouthparts of the brain.

This time, it is a special potion that greatly weakens the soul power of the brain.

The Ice Cave Shadow trembled and floated in the soul brain domain of the branch brain, looking at this behemoth, which was being corroded by strange energy, trembling and twitching, as if it might wake up at any moment.

But it didn't wake up in the end.

Immediately afterwards, Su Huan sprinkled a bottle of potion on Zhi Brain again.

This time, it was a potion that temporarily enhanced the soul energy of the Ice Cave Shadow.

And when he just saw the elixir that weakened the soul power infiltrating into the soul brain domain, he avoided the move of a snake and scorpion, but at this time, the phantom of the ice cave rushed towards the buff energy that penetrated this time.

The soul body of the Ice Cave Shadow expanded in an instant, and it instantly expanded several times again like a balloon.

It's almost as big as the Brain Soul Body.

Immediately afterwards, a cloud of energy like viscous blood penetrated into the brain domain, drop by drop, dripping on the soul body of the branch brain.

The Ice Cave Shadow hastened to avoid it, feeling that it would not be good to be touched by these energies.

Zizizizi!

Dark red plasma-like energy drips down on the soul body of the branch brain, and a strong corrosive sound emitted.

Streams of imprints emerged from the soul body of the branch brain, and were corroded into black qi and completely dissipated.

Outside, Su Huan poured a bottle of dark red viscous liquid into the mouthparts of the branch brain again.

Repeated several times like this, the black qi that emerged from the soul body of the branch brain suddenly decreased sharply, and finally disappeared.

"The stigma of the nest plague has finally been resolved!" Su Huan, who was rewarded by the Ice Cave Phantom, was moved, and poured in a few bottles of liquid medicine again, which were all potions that increased the success rate of the Ice Cave Phantom Shadow replacing the brain soul.

"Let's begin, Ice Cave Shadow! Devour its soul! You're the new brain! ”

The branch brain, which had already been unable to hold it back, instantly pounced on the branch brain.

Tear apart the souls of the brains piece by piece like a hungry wolf biting its prey.

At the moment of life and death, the branch brain finally woke up from its slumber.

It screamed and frantically tore at the Shadow of the Ice Cave.

But the abnormal soul body that it was sewn onto the main soul body had already been out of its control, and its soul power had decreased sharply, and there was no one in ten.

These souls were also completely fused and absorbed by the Ice Cave Phantom, and the Ice Cave Phantom obtained the secret medicine amplification, and the soul energy was greatly enhanced.

Under the elimination of the other, the main soul body of the brain was easily suppressed, and it was not the opponent of the Ice Cave Shadow at all.

Each time the Ice Cave Shadow tore a soul fragment off its body, its aura weakened a little.

And the aura of the shadow of the ice cave is also stronger.

The two huge soul bodies were like two fierce beasts in nature, constantly tearing at each other's flesh and blood.

Whoever loses resistance first in the end will eventually die!

What frightened the main soul of the branch brain the most was that the connection between it and the superior split brain and even the disaster nest was cut off for some reason!