The white bones and rotting zombies are equipped with powerful engines that are steaming white.

Gears, bearings, and robotic arms constitute their once again powerful core.

The Undead Monarch could no longer control his divergent thoughts.

But he also knew it in his heart.

It's definitely not something that can be easily built.

With Holdo's current alchemy knowledge, most of them can't be replicated.

Perhaps the alchemy apprentice has to be promoted to a higher level to achieve this.

Suppressing the restless thoughts in his heart, Nishizawa said casually, "Celia, accompany me to the Grand Arena for a walk." ”

"Yes. When the zombie girl heard this, she immediately put down the work of sorting out the books, picked up the white-boned chicken beside her, and obediently followed her monarch.

In the big arena, there are still many people.

Because the reserves of magic crystals were quite abundant at this stage, Nishizawa simply let go of the summoning circle in the Great Arena for military training.

With the current combat power of the Great Tomb, as long as you don't summon more than two lord-class enemies, you can easily deal with it.

When the Undead Monarch arrived, he signaled to Oliver, Laurent, and other undead spirits that they didn't need to salute, and then sat down on their bone thrones.

A bone throne was also built in the stands of the Great Arena, which naturally served to give Nishizawa a place to sit while watching the battle next to him.

If the owner of the great tomb could only stand, wouldn't it be smiling and generous.

At the same time, Nishizawa also revealed his demonic fire ring, gently rubbing the smooth surface of the gem.

A trace of escaping soul energy was absorbed by the gem itself, and the green flame inside became brighter and brighter.

A gem that can become stronger on its own, the more Nishizawa thinks about it, the more he feels that he has earned it.

If only there were a few more of these gems...... The Undead Monarch couldn't help but sigh.

As soon as his idea came to him, the honest decapitator placed a few new magic crystals on the inlay, and the black crack appeared again.

But this time, something was wrong.

It's not the meaningless cry of dwarf and bad devil wah-wow-wow-wow.

Nor is it the bloodthirsty barking of Cerberus.

First came a voice.

"I feel it, this is where my men died!"

"Guard, get through this rift first!"

In the next moment, a huge demon with a height of more than two meters passed through the void crack and stepped on the hard ground of the Great Fighting Arena.

But how Nishizawa looked and felt that he was thrown over.

[Giant Shield Terror Guard: Boss Level 7, Rare Qualification.] 】

This large, two-meter-tall man has a huge head, white fangs that protrude outwards like a wild boar, and a muscular body.

His hands were still clenched in his grip on a huge shield like a door, which almost covered his chest and abdomen.

His legs are recurved and equally muscular, so you can't ignore the amazing bouncing.

The moment this demon of hell's leader class appeared, he let out an angry roar at all the undead, but instead of rushing directly to kill him dumbfounded, he directly erected his huge shield in front of his soft chest and abdomen.

Combined with the two words coming from the void crack, Nishizawa stood up suddenly.

If I'm not mistaken, this time a demon lord has arrived!

This lord class is here for the Cerberus feeders who died in the Great Tomb before!

Nishizawa immediately said, "Celia is ready, once the lord class passes through that rift, directly use your strongest attack ability to try to inflict the greatest trauma on him!"

The Dark Princess nodded obediently, and when she turned to the void rift, her eyes had turned completely gray and dead silent.

The Undead Monarch stroked his Demon Fire Ring, but he didn't intend to use it.

Most high-level demons are extremely resistant to fire, and it would be unwise to use Infernal Flames on them.

However, if you can kill this lord, the demon's fire may be greatly improved, and it may be able to cause damage to the demon's lord class in the future.

Nishizawa rubbed his fingers and directly applied the madness buff to the undead in the Great Tomb.

He then took out a skull from his bosom, which was a "useless skull" grown in Bonn, which was specially used to release the spell of the "Cranial Donor Skullmaster".

White light flashed, and spell energy poured into the bodies of the strongest undead.

Led by the Undead Monarch, the undead of the Great Tomb are on the lookout.

There was no fear in their hearts, but a strong competitive spirit.

Isn't it the lord class?

Nishizawa's idea was more straightforward, it would not be difficult to fight a lord class with the current strength of the Great Tomb, and it would also boost morale after victory.

Why not.

The onslaught that the Dreadhor Guardians had envisioned did not come.

He glanced suspiciously at the undead waiting on the opposite side, and moved half a step to the left.

Then another two-meter-tall figure appeared from the void crack and was about to step on the ground of the Great Arena.

"It's now!"

Without waiting for Nishizawa to give an order, the Deep Dark Princess directly took out the big killing weapon that she relied on the most.

A fleshy palm with a diameter of five meters!

With Celia's current ability, she can grow this huge palm in any visual space within a radius of twenty meters!

This huge palm, which relied on the growth of flesh and blood and could quickly appear in the time of a breath, appeared directly above the figure's head, slapping it into a ground of minced flesh.

Nishizawa's soul fire jumped instinctively.

There was absolutely no way that the lord class could have been killed so easily.

Sure enough, the words in sight speak for themselves.

[Giant Axe Demon Guard: Death, Boss Level 9, Rare Qualification.] 】

The soul fire in the undead monarch's eyes turned pale red.

The demon lord was clearly more cunning than he expected.

Isn't it true that demons are crazy people with world-destroying minds?

Why are you learning to use your brain with demons now?

"Hahaha, stupid undead, do you really think I'm as brainless as that guy with a dog?" A loud laugh came from the crack in the void, "Times have changed! High-level demons are not brainless idiots!"

The next moment that emerged from the void crack was not the Demon Lord himself, but a demon more than three meters tall, with horns on his head and strange patterns painted on his body.

[Portal Archdemon: Commander Level 3, mediocre qualifications. 】

[Innate ability: Stabilize the void. 】

At the same time as this great demon appeared, the void crack that had begun to shrink because the magic crystal was about to run out immediately stopped shrinking, and not only that, but it also had a tendency to expand outward!

Stabilize the Void?

Nishizawa immediately reacted, this kind of portal archdemon is the vanguard of the demon army's unscrupulous invasion of the human world.

Their special natural abilities are useless in war, but they can stabilize the Void Passages, allowing the creatures of Hell to come to new worlds to begin their destruction.

Nishizawa immediately ordered, "Celia, shoot that big demon to death!"