Dio, who didn't know what Tower and Buck were calculating, easily cleaned up the remaining minotaur warriors and returned to the cast-iron castle.

When he returned to Aisha's side, there were only a few scarred Hydras left in front of the wall. That's it, it's these hydras who rely on their powerful regeneration ability to survive.

But that's already their limit.

Under the combined attack of the dwarven spearman, the dwarf mage and the dwarf bombardier, the strongest and most capable hydra finally fell hard.

Seeing that the last enemy was finally knocked down, the dwarven guards who had gritted their teeth for a long time cheered in unison, and then they all collapsed to the ground.

First the extremely fierce Minotaur guards, and then the extremely powerful Hydra, the dwarven guards who fought against two strong enemies in a row had already done their best. Even so, at the last moment, they were already relying on their lives and will to barely resist the enemy's offensive.

So after successfully defeating the enemy army, these already exhausted dwarven guards naturally fell as well. Fortunately, with this level of physical exhaustion, as long as you take a good rest for a while, you will be fine.

However, when the dwarven guards went to rest with the help of their compatriots, the big men standing on the city wall were all very heavy-faced.

After being silent for a long time, Werther Cast Iron, as a lord, said in a deep voice, "What do you think? ”

"There is no doubt that this is to weaken our defense capability while testing our specific strength."

Elder Pixar said with an annoyed expression, "As long as we do this two or three times, our city walls will be useless." ”

From the moment the appearance of these troops composed of several creatures that originally belonged to the underground world, these bigwigs present had already realized that this was just a temptation.

However, when the strategic magic "Earth Shake" cast by the minotaur magician appeared, everyone fully understood the enemy's sinister intentions.

It is far easier to destroy than to build.

Even with the help of the gnomes, it would not be easy for the dwarven craftsmen to build such a tall wall. However, the city wall they had worked so hard to build was easily collapsed by a strategic magic of the enemy, which would naturally seriously hit the enthusiasm of these craftsmen.

But that's not the most serious problem! The most serious problem is that the location where the cast-iron fort is located is underground!

Although the cast-iron fort was built on a huge solid rock from the beginning, and this giant rock has been solidified and strengthened by the dwarves many times, the dwarves are not worried about whether the "shaking of the earth" will have much impact on the cast-iron fort. However, the cast-iron fort with a solid foundation is not afraid of "shaking the ground and shaking the mountains", which does not mean that other places are not afraid either.

For example, the rock formations above the cast-iron fort!

"Click-la-la-......"

With a soft thud, a series of rubble, with a bit of gravel, fell right on Lott Cast Iron's head.

This made the other people's faces even more ugly.

"Back when the cast-iron fort was built, we cleaned and strengthened the rock formations above. After clearing out the potentially dangerous pillars and contoile stones, the entire rock layer was solidified with magic. ”

Witt Cast Iron said slowly: "So in a short period of time, we don't need to worry about whether the rock formation above will collapse directly. ”

"In other words, if the enemy continues to use the earth to shake the mountains, there is a good chance that will happen, right?"

Elder Pixar asked with a grim face.

"Let's open a little, Elder."

Baker Bronze Finger was a little helpless and persuaded him: "If we were still in Platinum City, we would probably have been buried alive by the enemy." ”

If the rock formation above the cast-iron fort collapsed, it would only cause a lot of trouble for the dwarves. For the gnomes who originally lived in the grottoes, the collapse of the rock layer above Platinum City was like the collapse of the sky, an absolutely unsolvable problem.

After all, the gnomes aren't as good at burrowing as the dwarves.

Therefore, after realizing that the enemy army had the possibility of directly using "earth shaking and mountain shaking" to collapse the entire grotto located underground, Elder Pixar, who had always had enough confidence in the defense of Platinum City, turned his face so ugly.

It was only then that he understood why Roman, who was the former patriarch, had always emphasized that he should not rely too much on the defense system of Platinum City, but should intercept the enemy as much as possible outside the territory and take the initiative to drive the enemy away.

This is because Roman, as the patriarch, has long been aware of the key points of Platinum City.

And this has always been a psychological blind spot for the high-ranking people of the two races, including Werther Cast Iron.

Whether it is races such as dwarves and gnomes who later relocated to the underworld, or races such as cavemen and minotaurs who originally lived in the underworld, they usually don't mess around like the minotaurs.

Caverns of various sizes that could be used to build settlements were already a valuable "resource" for the various underground races that intended to live here.

Even if there are cavemen who are able to dig caves to expand their living space, the number of such caves is still very limited. Therefore, if any race dares to deliberately collapse a cave that can be used for life, it will inevitably be besieged by other races.

Over time, this situation has become taboo for all races living in the underworld. Therefore, neither the dwarves nor the gnomes who have lived in this underground world for a long time have considered the aspect that the enemy will use the strategic magic of "earth shaking and mountain shaking" as a means of attack in this underground world.

However, the various demon races, including the Minotaur race, have different purposes from dwarves, gnomes, and other races.

Since the purpose is to completely eliminate the other races, these demons don't care if the various races living in the underground world will besiege them. In the same way, because the purpose is to dominate the underground world, the demon race as the leader does not mind destroying part of the underground world, so as to bury the underground races living in it together......

Because they don't care, when they do it, the generals of the demon clan don't think about the impact of doing so at all.

Roman, as the former patriarch of the dwarf clan, was aware of this in the battle with the demons, and would propose such a hostile policy to the elders led by Elder Pixar. But it was precisely in order to implement this policy that he would die in the confrontation with the fallen angel after giving up his geographical advantage.

Therefore, after understanding the situation, the thinking of the current high-level members of the dwarf clan is in a very contradictory state.

Whether to fight or flee, it doesn't seem to be very suitable......

"Alright, everyone, calm down!"

At the critical moment, Witt Cast Iron said categorically: "In the honor of the dwarves, I promise that the rock formation above our heads will never collapse before the Cast Iron Fort collapses!" ”

Witt Cast Iron's statement immediately calmed the whole field.

Although some people, led by Elder Pixar, still had some worries in their hearts, after Witt Cast Iron swore in the name of the dwarves, they could only put these uneasy thoughts aside for the time being.

At this time, if they asked Witt Cast Iron if he was sure, it would be tantamount to questioning the reputation of the dwarves, and it would not be a joke.

So everyone can only put this matter on hold for now.

"The question now is how do we compensate for the collapse of the wall."

After taking out the cigarette stick and taking a puff of cigarette, the calm Witte Cast Iron decisively changed the topic.

"I have a proposal for that."

Dio, who had been listening for a long time, interjected at the right time. And his words immediately attracted everyone's attention.

"Don't sell it! Speak up, talk fast! ”

Baker Copperfinger, who also wanted to change the subject, asked eagerly.

"A building called a bunker can effectively increase our combat effectiveness."

While explaining to Witt Cast Iron and the others, Dio quickly drew a simple diagram of the bunker on a piece of paper.

It is also thanks to the fact that the bunker is not a very complicated building in the first place, so Dio, who is not good at architecture, can draw a sketch of the bunker so easily.

Looking at the simple structural drawings drawn by Dio, some people with certain attainments in architecture, including Delrk, were all looking at each other.

Although Dio's structural drawings are indeed very simple, and there are some mistakes, this does not prevent everyone from seeing the excellence of this so-called "bunker".

"Very good design indeed!"

Elder Pixar, who also saw the advantages of the bunker, gave a rare compliment.

In fact, in this world of magic, bunkers don't provide much protection, and there is a lot of magic that can pose a threat to such simple bunkers. But Elder Pixar and others didn't care about this, because the design of this so-called "bunker" essentially provided them with another idea of tactical thinking, and this was valued by Lott Witt and others, who were good at defense.

After figuring out the purpose of the bunker, these people began to think about other defensive tactics in their minds, such as street fighting......

"Above all, the bunker is another system of defense that is independent of the city walls. With or without walls, we can place bunkers on the perimeter for ranged units such as crossbowmen or archers. ”

Pointing to the building on the picture, Dio explained very calmly.

In fact, Dio didn't actually enter a bunker to observe. His knowledge of bunkers comes more from some history books and certain games. Therefore, the structural diagram drawn by Dio inevitably has some assumptions and mistakes.

But among the people present, there are not many people who know how to do it. The dwarves with a talent for prospecting are naturally ignorant of architecture, and the gnomes who once built the Platinum City are also masters of engineering and architecture. Therefore, after seeing Dio's simple structure drawing, these masters naturally corrected the wrong parts in their minds, and then came up with the correct drawings.

"That's amazing!"

As the leader of the gnome bombardiers, Zaggs, who forced his way over, laughed happily and said, "With this thing, my brethren can bomb the enemy as much as they want, without worrying about the enemy's counterattack!" ”

As soon as Zaggs said this, the high-ranking members of the dwarf clan, led by Baker Copperfinger, all supported their heads. They all subconsciously thought of such a picture: when the enemy was blown up all over the sky, the overjoyed Zags accidentally let the explosive bomb in his hand fall to the ground, and then the entire bunker was blown up into the sky......

"Well, in this way, the security of other troops has been improved a lot."

Baker Copperfinger could only smile bitterly.

"We don't have enough archers or crossbowmen, and mages are better suited to moving in groups, so the best troops to be in bunkers are the dwarf bombardiers."

Lott Cast Iron said matter-of-factly.

"Right, right! Our dwarf bombardiers are the strongest, hehehehehe......"

After hearing Lott Cast Iron's words, Zaggs laughed directly with his hands on his hips.

"Okay, okay, I don't know when the next wave of the demon offensive will come, let's hurry up!"

Witte Cast Iron, who was smoking, interjected in time.

Baker Copperfinger and the others, who were a little troubled by Zaggs, nodded hurriedly, and then took action one after another. Witt Cast Iron hurriedly arranged for men to inspect the rock formations above, so that after Aisha left with Dio, Zags was soon left alone on the wall.

After laughing, Zaggs soon found that he was the only one left in this place, but Zaggs, who was often given a cold shoulder by everyone, didn't care about it. He had anticipated this situation as soon as he had begun to study gunpowder and had succeeded in producing it.

"Why don't you understand the charm of gunpowder? As long as I can figure out how to store and use gunpowder more safely, then the day when ordinary people can also use gunpowder weapons will come sooner or later! ”

Looking at the bomb that was caught under his arm, Zaggs's eyes lit up with confidence.

In this regard, the dwarven guards, who were not far away, subconsciously took a few steps back, and looked at Zags with awe-filled eyes.

Dangerous elements running around with fish bombing tools can't be provoked, they really can't be provoked!

If it weren't for their duty, the dwarven guards would have run away long ago......

Zaggs, who seemed to notice the eyes of the dwarven guards and felt that he was a genius, let out a cold snort full of disdain, and slowly left with the steps of not recognizing his six relatives.