The Undead Death Domain is essentially a type of plane, but as a layer in the Void Spirit God Emperor's Mausoleum, it naturally also has the function of guarding the mausoleum, so the rules of this plane itself will suppress and exclude all outsiders, just like the suppression of outsiders by those exclusive planes "God Kingdom" that are controlled by the true gods.

Of course, the plane of the undead dead realm cannot really be compared with those exclusive divine kingdoms such as "Tang" and "Dragon Domain" with the sovereignty of the true god, so although it also has the rule suppression of outsiders, it is not as serious as in the realm of true gods, and the suppression effect in this regard is not as rigorous and perfect as the rules of the plane in the realm of true gods.

But even if the repression is not too severe, it can still play a role.

For example, Howl, when fighting in this undead realm, the strength he can exert will be forcibly suppressed by at least 20%.

The endless undead dead qi in this plane will consume Howl's own power all the time, and every bit of his spiritual power must be used to resist the erosion and damage of the undead dead qi when used, resulting in the original 100% power of spiritual power can only exert a maximum of 80% of the utility when actually used.

Originally, an extraordinary person like Hal who had reached the level of the third-level ninth-order extreme realm had already stood at the limit of the third-order level, and he was only one step closer to the fourth-level true god realm, and he was an opponent like the Ghoul Dragon Lord and the Death Knight Lord, although both sides were third-level and ninth-order, but in fact, there was some gap in Petz's strength.

If the Transcendent Realm of the Third and Ninth Orders is regarded as a stage, and a progress bar expressed as a percentage is divided, Hal has cultivated to 99% of the progress of this stage, while the Ghoul Dragon Lord and the Death Knight Lord are at the 30th right of this stage.

Although they are also at the third level and the ninth order, the strength of the two sides is still high and low.

Normally, even if Hal is one against two, he can steadily suppress the Ghoul Dragon Lord and the Death Knight Lord, and even if he is given enough time and the other party does not run away, then he still has a probability that he can kill these two undead lords on the spot after paying some price for his injuries!

But the actual result of the battle now is that Hal and the two undead lords have a draw, and even faintly fall behind, thanks to the armor protection of the spell spirit machine and the sharpness of the armed system, as well as the occasional use of the power of the "Simulated Crystal Wall Lv.4" and other exception-level sealing crystals, which has stabilized the battle.

This is actually because Howl's strength cannot be 100% used in this undead plane.

The undead realm plane suppresses the rules of outsiders, and the undead creatures who are the native members here naturally know this as long as they have enough wisdom, and as powerful undead of the third and ninth order, the ghoul dragon lord and the death knight lord have basically never talked nonsense with the enemy, but their wisdom and vision are qualified.

Therefore, when the mimic ghoul dragon slime rushed towards them and launched an attack, the two undead lords were so surprised, because they found that the endless death qi of the undead realm itself did not suppress those two enemies in any way!

Of course, in addition to this, they were actually very surprised at how the two enemies were able to transform into the undead so perfectly. Even the Ghoul Dragon Lord and the Death Knight Lord themselves, if it weren't for the fact that they had witnessed the mimic transformation process of the two slimes all the way because they were always watching the battlefield, they would not be able to see the true details of each other's bodies just by their perceptions!

The two mimic drakes didn't care what their enemies thought, and as soon as they joined the battlefield, they unceremoniously opened their mouths and spewed two mouthfuls of dark green rotten dragon breath towards the Ghoul Dragon Lord and the Death Knight Lord.

Although the power of death and the power of corruption contained in these two dragon breaths did not have any additional restraint effect on the two undead lords because they were the bodies of the undead, the destructive power of the dragon breath itself was still invisible, and the two undead lords were unwilling to force it and had to retreat separately.

This gave Hal a chance to get out, he didn't choose to take advantage of the situation to pursue, but jumped directly into the spatial map and jumped into the open mouth of a white slime beside him.

Then the white slime launched another spatial jump without stopping, and disappeared directly under the noses of the two undead lords who were just about to make a move after reacting.

Only the two mimic ghoul dragons were left to confront the two undead lords. A moment later, under the cautious gaze of the two undead lords, the two mimic ghoul dragons actually reverted to the appearance of the gray slimes they had seen at the beginning, and then disappeared completely from front of them with a faint ripple of space.

After perceiving it and making sure that no trace of the enemy Rao could be found, the Ghoul Dragon Lord and the Death Knight Lord glanced at each other, and then silently directly used their strength to forcibly tear open the spatial passage, returned to the original battle position located hundreds of kilometers away, and joined the other two Undead Lords.

After the space was transferred, the Ghoul Dragon Lord and the Death Knight Lord immediately looked at the entire battlefield, but they could only see the devastated land with energy fluctuations and ice crystals and scorched earth, but there was also no human girl on this side.

The Lich King looked at the two undead lords who appeared in front of him, and slightly tightened his staff, and the dark blue soul flame in his eyes flickered slightly on the skeletal-like dry face exposed under the tattered robes and cloak.

"Did the intruders over there also escape?"

"Looks like it's the same here?"

"Untraceable ......"

"Then order it to go down, and let the undead of all levels keep a close eye on the area where they are, and send a letter to us as soon as they find any trace of the intruder. ”

"Yes, that's it!"

Soul voices converged in the void, and the four undead lords exchanged information with each other, and then quickly reached a consensus.

And it was at this time that more high-level undead breaths appeared, and the void was directly forcibly torn out one after another, and then figures came out of it.

Vampire King, Bone Monarch, Death Worm, Ghost Shadow, Necromantic Eye, Carrion Tyrant...... All kinds of undead monsters that are familiar to the public in many stories and legends, or have never heard of them at all, have stepped out of the torn spatial rift and appeared here.

Without exception, their bodies exude a heavy or eerie powerful aura, and carry a dense and extremely dead aura.

At a glance, a full thirty-six powerful undead lords gathered on this battlefield that had been reduced to ruins.

Even the worst of them is the Transcendent Level of the Third and Seventh Order, which has entered the threshold of mastering the mysteries of the concept of law. Even the top powerhouses of the third and ninth orders like the Lich King are not a few.

"Are you late......"

Among them, the vampire king, whose face was so pale that there was no trace of blood, but his face was almost indistinguishable from that of ordinary humans, glanced at the gloomy undead all over the ground, and sniffed the faint trace of living breath in the air, showing regret with a look of disappointment, and then turned his head to look at the Lich King with his blood-colored cold eyes.

"Since you were the first to come into contact with the invaders, do you know where they went?"

The Lich King's withered bark-like face stiffened into a strange and eerie smile, and he spoke in a low, unpleasant voice, "Unfortunately, we want to know the answer to this question as well. ”

These new undead lords were all attracted by the energy fluctuations caused by the battle between Hal and Lily and the Lich King.

The undead lords in the Undead Realm are not in harmony with each other, and it is not uncommon for them to fight with each other, not only because they have a bad relationship, but also because they are using this way to pass the long and boring time.

The dimensional environment in this realm of the undead is very monotonous, and death, decay, and desolation are the biggest themes here. Because of their low intelligence, the low-ranking undead are either asleep or wandering around the land in ignorance, but they don't know what their troubles are.

And the high-level undead with a high degree of intelligence, because of their long existence time with no end in sight, in addition to sleeping like those low-level undead, they can only take the initiative to find something for themselves to do.

Of course, the racial habits of the undead are different from those of normal beings, they are not keen on the entertainment of normal human beings, they hate the living and worship death, and the so-called 'entertainment' used to pass their time is often not very good in the eyes of normal people. Fighting each other is one of them.

In this realm of the undead, it is a very common phenomenon for the undead to fight each other, and then the winner devours everything from the loser to grow. There are quite a few high-level undead who have grown up from low-level undead step by step through this cruel way.

However, at the level of high-level undead, they rarely really fight each other to the point of completely separating life and death.

On the one hand, it is because it is difficult for high-level undead to be destroyed, and on the other hand, it is because of the interference of the will of the plane with the undead death plane.

As the guard of the mausoleum, the undead realm is originally used to defend against foreign enemies, and all the undead in it are members of the mausoleum guardians. Therefore, it is impossible for its dimensional will, that is, the spirit of the ethereal realm, to watch the undead inside really consume each other.

The low-level ones are fine, but the high-level powerful undead, if they are lost because of infighting, it will be a pity and a waste.

Therefore, the spirit of the Ethereal Spirit Realm intervened in this plane.

In normal times, the spirits of the Ethereal Realm actually don't mind the undead in the Undead Realm killing each other, but when outsiders break in, these undead lords must temporarily put aside all past grudges between each other, so as to join forces against the foreign enemy

Therefore, at the beginning, when Lily and the others started a war with the four undead lords including the Lich King, the high-level undead lords in other regions did not care about it, and thought that two more high-level undead lords were happening, which made them accustomed to chatting and fighting.

It wasn't until as the battle time went by that they gradually realized that something was wrong, and then they also clearly received the "order" from the will of the undead plane (the vest identity of the ethereal spirit spirit), and this time they immediately tore through the space and descended directly on the battlefield at the expense of their strength.

It's a pity that the Lich King locked the space in this area before, which to some extent also hindered these undead lords who wanted to jump over from a distance, so that they could not use the space jump to directly join the battlefield in the first place.

The area where Hal fought the Ghoul Dragon Lord and the Death Knight Lord just now, although there was no Lich King to make a move, was actually equipped with means to block the space.

And this kind of space blockade is naturally from the handiwork of the brains. In order to prevent other high-level undead lords in the undead realm from more distant places from getting involved halfway.

......

Not to mention the situation on the side of the undead lord, after Hal was sent into the slime's "dimensional stomach" space, Lily, who had been fighting with the Lich King and the ghost banshee for an unknown amount of time on the other side, was also easily out of the battlefield with the help of the "dimensional stomach" spatial ability of the white spirit slime under the cover of two high-level undead who suddenly appeared.

Then, a mimic undead slime was left lurking in the outside world to act as a teleportation coordinate for the "dimensional stomach" space, and the rest of the slimes were in hiding.

The space inside the "dimensional stomach" is Zheng

After combining with Lily and exchanging information on their respective situations during the battle, Hal and Lily turned their attention to the four gray slimes in front of them that exuded the aura of death.

They are the four White Spirit slimes who participated in the experiment after trying to devour a large number of undead and refining the power of the undead, and after completing the adaptation and evolution of the power of the undead.

Feeling the breath of death that came from the four slimes that even the defense mechanism rules of the undead death plane itself could deceive the past, the two nodded with emotion.

"The first stage is considered a success, so let's move on to the second phase?" Halley suggested to Lily in a resolute manner.

"Hmm. Lily had no problem with that.

So, the two of them each looked at their corpse watches.

"Lotus (No. 81), let's start the second phase of the experiment. ”

"Yes. 』

The two Lv.3 Inheritance Exclusive Brains have all been answered.

There was a slight fluctuation in the space within the "dimensional stomach" that only those who were extremely sensitive to perception or had a sense of the power of space could detect. Subsequently, several different kinds of undead suddenly appeared in this space.

As soon as these undead appeared, they smelled the breath of living people on Hal and Lily not far away, and the originally relatively quiet state immediately turned into a little crazy, like a hungry wolf smelling the smell of meat.

Hal and Lily didn't care much about the reaction of the undead, because they were just "test subjects" when they appeared here.