As the saying goes, cheap is not good, and good is not cheap.

The low cost of the magic guide shell makes their combat effectiveness really a bit scum.

It took less than two minutes for the three magic guide shells to appear and be split into parts by Red, and Red didn't even use their skills.

In other words, if the security measures in the bunker are at this level, the rest of the adventure should be easy and enjoyable.

But Hela tells them that it is the heart of its function that restricts the strength of the magic guide case, which means that with the heart of a more powerful demonic beast, a more powerful magic guide case can be created.

Therefore, there is still the possibility of encountering a strong enemy, so don't be careless.

It's right to think about it, after all, this bunker is said to be prepared to fight the Demon King, and judging from the level of the Demon Guide Shell that has been encountered so far, the Demon King will not exceed level 35 at most.......

Such a weak demon king conquers the world? Is it funny?

And those three magic guide shells should be equivalent to the alarm system, just to investigate, in case of undecided situations, they will naturally call for support, and if they continue to stay in place, they will likely be overwhelmed by the army of magic guide shells.

This is very similar to the real situation, if something happens somewhere, the film police must be sent over to see it first, and if the film police can't figure it out, they will call special police, armed police, and so on.

There is no loot to speak of when the magic guide case is killed, except for the hose that reaches the magic power, which can be sold for two 'scrap iron' dollars, you can also find a transparent jar filled with green liquid and use it to soak the heart, which is the core of the magic guide case.

This thing is a veritable 'shell'.

Therefore, the three of them casually looked around, so they picked the direction from which the magic guide shell came from and followed the passage, so as not to be surrounded by more magic guide shells.

On the road, An Yizhi also took the time to ask Hela about the history of this dungeon world, especially the part of the demon king and the brave.

However, the materials on Hela's side are things that can be found in any library in this dungeon world, and there are many places where there are unknowns.

According to her, there will be periodic 'demon kings' in this dungeon world, and there are a total of three times with a clear historical record, and there may have been a number of them in the past, but most of them are legends, and there is no clear record.

There is no exact pattern for the time when the demon king appeared, but there are still precursors for the appearance of the demon king.

That's the abnormal behavior of the monsters.,The monster communities that are usually hostile to each other and even prey on each other suddenly honestly and peacefully.,This is the precursor to the appearance of the demon king.。

Because the strongest and most special ability of the Demon King is to control monsters, he can make the monsters that are usually scattered in an orderly manner, plus the number of monsters in this copy world is still a big threat.

However, the first two appearances of the demon king did not cause much damage, mainly because the demon king itself was too weak, and it was easy to be decapitated by the people at that time, as long as the demon king died, the monsters would also return to a scattered situation.

But the third time, that is, the one more than 300 years ago, was different, the power of the demon king was unprecedentedly strong, and none of the brave men who ran to practice the decapitation tactic succeeded, and he swept across the continent, bringing everything within his reach into his rule.

The Confederation and the Empire, which were still unitary at the time, were almost completely wiped out, and this bunker was the last refuge and fortress.

The story is more cliché after that, the last brave man and the demon king fought a decisive battle above the bunker, now known as the place of the final wilderness, and the powerful shock wave and the aftermath of the battle burned everything above, and the brave and the demon king both hung up, and the world was peaceful again, which is really gratifying.......

Fart.

After this Demon King's attack, the original unified country soon split into the current empire and federation, and the war has been burning from more than 300 years ago to the present.

An Yizhi felt that the people of the empire came to this bunker to use the bunker to achieve some kind of war purpose, maybe the bunker was buried with the 'final battle weapon' that was ready to be used to fight the demon king at that time?

Not to mention what the current situation is, there are still many unsolved mysteries about this history.

For example, how did the demon king appear, who is the surname, and why does it appear periodically?

Another example, who is the brave? How did he kill the Demon King?

None of these details are recorded, and unless you ask someone who lived through the battle at the time, no matter how you look for information, you will only get the 'result' and not the 'process'.

Obviously, the 'process' was deliberately concealed by some high-ranking people, as for the purpose.......

Forget it, let's continue to concentrate on the current adventure.

–‐‐——–‐‐——

On the other side, on the side of the Imperial Army-

Compared with An Yizhi and the others, who came in through the ventilation duct and were considered uninvited guests, the Imperial Army had obviously already found out where the bunker was safe.

Protected by about thirty soldiers, the Duke of Westford and four young girls stayed in the center, marching in such a formation in a wide passage.

Their target is the core of the bunker, which was once the command post used by mortals to fight the Demon King, and the control room of the entire bunker.

The war between the Empire and the Federation was indeed frustrated, and the reason for this was that it was impossible to escape the unreliable master and apprentice of An Yizhi and Nikolai.

At that time, Nikolai knew that the Two-Faced One would not be in Ann's hands for long, and he thought about getting him a new staff.

How to say that Nikolai is also the most powerful alchemist in the mortal world, it is impossible to throw too rubbish things to him, that is to disgrace himself.

So Nikolai was very interested in making magic guide staffs, and almost searched for all the old friends he could find. As he passed by this dungeon world, he suddenly remembered that it seemed very expensive to get a staff that could transform freely......

So he asked Olivet to match up and exchange skills with the big guys in the Federation who are good at alchemy.

We all know that Nikolai's current mental state is really not very stable, and when he communicates with his peers about technology, he is called a hilarious skin, all kinds of showmanship, so the alchemists of the Federation take a fancy to the airplane drawings he designed when he was young.

With Nikolai's mind at the time, he would definitely not have imagined what kind of changes the appearance of the plane would bring to this dungeon world.

He happily walked away with the magic staff in his arms, while the Federation worked overtime to study the blueprints left by Nikolai.

The prototype was built in three days, the test flight was successful in a week, and after three weeks, even the production line was specially built.

It is true that these planes are only old machines at the level of the early stage of World War I, and the pilots are all ducks on the shelves, and they find a group of rookies who are not afraid of death to temporarily train for a few days and then go to fight.

But when they appeared on the battlefield, the results were still impressive.

After all, in the inherent concept of this dungeon world, if you want to fly, you must use magic. And the battlefield is heavily diffused with interferon, and the magic power cannot provide lift, a habit left over from the war against the Demon King.

Originally, neither side had any air force units, and the fight was very similar to digging trenches and squatting with artillery against each other, but one side suddenly pulled out planes that could dive and drop bombs......

Although the number of planes was still small, and the breached lines were quickly recaptured in the desperate counterattacks of the Imperial soldiers, the balance of war had inevitably shifted in favor of the Federation.

The empire has also thought of a lot of methods, but they are useless, even if it is imitated, there must be a sample, and it is not magic to make the plane fly.

The former requires subjects such as aerodynamics, while the latter is sufficient as long as it is powerful.

Now the alchemists of the empire are working overtime to try to imitate and restore, but the progress is really bad. So they had to take a turn of their minds and set their sights on the bunker that had been used to fight the Demon King more than 300 years ago.

It's not just a fortress and a shelter, it's also an arsenal of weapons, the most famous of which is, of course, the Wizard Case.

This thing doesn't look like a low level, but the number is definitely large enough, and when fighting against the Demon King, they are all used as cannon fodder to open the way for the brave squad that implements decapitation tactics.

After the war, a huge number of magic guide shells were sealed in bunkers, and if I could activate them for my use, it would naturally be a big help, at least to buy time for the empire to copy the plane.

But the bunker is not something that anyone can move if they want to, and the magic guide shell is not at anyone's command.

If you want to control the bunker, you must have a 'key'.

There are three keys to the bunker, which were given to the king at the time, the brave man who killed the demon king, and the builder of the bunker, Master Olivet, who is now the president of the Adventurers' Guild.

The King's Key had been destroyed when the country had split into empires and confederations, and the Brave Man's had disappeared, while Master Olivet's had been broken into four by him, intended to be kept as a memento and sealed forever.

But the current situation makes him have to come out.

The Federation has planes, and the war is tilted in their favor, and there are already many problems in the empire, and there is a serious struggle for power among the nobles. Even among the four nobles, most of them are on the bright side, one on the back, and one on the back.

Coupled with the growing dissatisfaction of the common people at home with the rule of the aristocracy, the empire is likely to be directly annexed by the Federation under internal and external troubles.

However, it was inconvenient for Master Olivet to come forward directly to the side of the Empire, so he hid the key in the Military Academy, and deliberately found it by these four teenagers and girls, so that they could bring it back to the Empire.

In this way, they can give the key to the Empire, so that they have the strength to fight against the Federation to maintain the balance between the two countries, and thus protect the safety of Saviara, and they can also take themselves out and maintain a neutral position.

However, judging from the results, the federal side also learned the news, so they sent troops out to surround it.

That's the way it went, if it weren't for An Yizhi and they happened to receive the escort task, it would be difficult for the key to be delivered to the Empire, but the other way around......

Let's see how much trouble Nikolai has caused in this dungeon world!

Of course, eighty percent of this account will also be counted on An Yizhi's head, after all, the machine staff made by Nikolai is now in An Yizhi's hand.