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Demps looked at Feng Yu and asked, "Can those big machines work for a long time?"

"No problem, those big rollers are equipped with high-torque diesel engine power and backup motor power at both ends. In other words, each giant rotating shaft has two oils, two electrics and four machines.

And their work only requires two of them, that is to say, each rotating shaft has a set of backup equipment.

Special engineers are responsible for maintenance of these power rotation tasks, so that they can continue to work.

What's even more powerful is the large rollers themselves. They are forged with the latest demon-repelling alloy and carved bit by bit with fine gold turning heads. They can crush bones and will not wear out for how long they work continuously. "

"Our technicians are getting better and better."

“With a solid industrial foundation, there are more tricks that can be played.

Speaking of which, our use of energy is still insufficient. If we have enough energy to squander it, we can completely build this space into a space with ultra-high temperature or high microwaves and high-energy rays.

In that case, there wouldn't even be a need to defend, and it would be impossible for the undead to rush out. "

"This is already very good. Since the beginning of records, Gerien has been shrouded in the clouds of plane war. The war with plane creatures, especially the war in the underworld, is completely acceptable."

Even Anthony, who was not very fond of expressing opinions, gave a rare nod.

At this time, in half of the plane gate, a large number of undead magicians rushed out of the plane gate, floating in the air of low-level undead, and flew in the direction of Feng Yu and the others.

The laser generator was turned on by the warriors, and laser beams were directed at these undead magicians with magic shields on.

Anti-aircraft guns and machine guns also began to fire, shattering the shields of these undead magicians and exploding into a pile of bone fragments in mid-air, which spread to the low-level undead group below.

Facing anti-aircraft guns and machine guns that could break through low-level magic shields even if they were not equipped with magic-breaking bullets, the low-level undead magicians were blown up one by one before they could even get through the halfway point.

However, the warriors of Cattail City had no time to be happy. The underworld was trying their best. Low-level undead and undead magicians that kept appearing seemed to be inexhaustible, and they kept emerging from the gate of the plane.

Weapons, spare weapons, barrel reloading, barrel reloading, weapons operator rotation, if the attacks in the Underworld don't stop, the attacks in Cattail City can't stop.

Fortunately, due to targeted preparations, whether it was weapons or soldiers, corresponding arrangements were made, and the Tiejun's response was relatively stable.

Except for the fact that the soldiers were nervous at the beginning, there was a lot of waste caused by unnecessary excessive firepower.

After fighting for an hour and rotating twice, the soldiers' mentality stabilized and they began to show off their skills, accurately killing the undead magicians one by one.

The fiercest battle between Cattail City and the Underworld has officially begun.

This fight lasted for more than half a day, and the undead still continued to rush out of the gate of the plane and swarmed towards the warriors of Cattail City.

However, due to the limited size of the plane gate and the lack of space inside the fortress, the undead have nowhere to go and no way to hide.

In this way, this intensity of attack was resisted by Cattail City.

Because of the various protective measures, although the soldiers of the Iron Army worked harder, they have not been injured since the beginning of the war.

Feng Yu was holding a cup of tea and stood in the observation room looking at the undead that were still pouring out from the plane gate. He also had a headache: "The undead are really made of steel. It has been almost a day and a night, and all the broken bones and scum have been transported out. There are dozens of big cars, and they still don’t stop.”

Dempsey, who had also not slept all day and night, was eating snacks and said: "Where is this? During the sub-dimensional war, the underworld fought against all the planes almost by itself.

What it relies on is these tireless and large numbers of low-level undead armies. This is called the real skeleton sea tactic, and it tortures all the major planes to death. "

In the underworld at this time, the Archmage of the Undead gritted his teeth and let out a silent roar. A small but very solid soul was separated from the soul fire of its skull.

"Ah ~ sooner or later I will kill all these despicable natives on the main material plane."

Splitting the soul is a huge pain even for strong men like them, and it is accompanied by a weakening of the soul and a decrease in strength in a short period of time.

If it weren't for the current situation, it wouldn't do this, because it's afraid that the other undead bosses will take the opportunity to eliminate it.

But at this moment, all the big guys in the underworld gathered around it, and it did it without hesitation, because it knew that before they broke through the fortress of the main material plane, it was almost impossible for the big guys in the underworld to fight among themselves.

Because every strong person in the underworld knows that the current situation no longer allows them to be disunited.

In the sky of the underworld, those planar barriers that sparkle with electric light, like cumulonimbus clouds, are becoming brighter and brighter at this moment, and more and more electric light breaks through the clouds.

That's because the plane barrier is undergoing drastic changes, and the space in the underworld is shrinking rapidly, because the original energy of the underworld plane is rapidly losing.

When the original energy of the underworld plane cannot support the plane barrier, the plane will become smaller and smaller until the original energy can no longer maintain the integrity of the plane barrier.

At that time, the underworld plane will be crushed by the rampant energy of the plane barrier, and they will either rush into the plane gate and fight the strange weapons of the main material plane, or they will have to be completely shattered together with the entire plane.

Under the protection of the underworld bosses, the Archmage of the Undead sat there quietly, investing his consciousness in the split soul fire, controlling this small group of soul fire, and sticking it to the body of a low-level undead. The leg bone entered the gate of the plane.

Not surprisingly, this unlucky low-level undead, surrounded by his companions, fell onto the surface of the gravel machine and was crushed into pieces by the huge rollers.

But the soul fire, which was as solid as jelly, got rid of the low-level undead first, squeezed into the gap of the stone crusher, and appeared under the huge roller of the stone crusher.

Through soul perception, the Archmage of the Undead discovered that a large number of broken bones fell down and landed on the sloping ground, and then followed the water flow and fell into an advancing conveyor belt.

The conveyor belt is made up of pieces of iron mesh, which filters out a large amount of water sprayed into the undead group by high-pressure water guns, and transfers the remaining broken bones out.

The soul fire split from the Undead Archmage penetrated under the conveyor belt through the gap, and moved along the conveyor belt, intending to find a way out of the fortress.