The "Slave War" probably broke out between the 9th and 10th centuries of the Apocalypse calendar, which means that the history of Doom Fort probably dates back to 800 years ago, which is several times longer than the history of Corland City.

As old Jimmy deduced, the first owner of Doom Castle was probably a powerful goblin slave owner at the time, so he built a war castle right at the end of the Sea Wall Mountains, blocking the land route between the kingdoms of Gilago and Dagon.

"Strange, giant rat swarm and dark demon rats, why would they use this as their lair?"

The deeper they went into the dungeon, the more puzzled everyone became, in the history of Doom Castle, I don't know how many adventuring teams there were, because of horror legends, they searched Doom Fort because of horror legends, but they never found that there were dark demon rats here, even if the detection level of those adventurous teams was very bad, it wouldn't even be able to find such a large litter of giant rats, right?

Besides, the Dark Rats are underground creatures, and they must have migrated to this dungeon recently, so where did they come from?

With these kinds of questions, everyone continued to search into the depths of the dungeon, because the giant rat group was frightened by the explosion of the previous "Little Forbidden Spell", they had already run away at this time, and everyone did not encounter any attacks along the way.

Finally, when everyone searched the deepest part of the dungeon, an underground warehouse used to store supplies, they finally found the reason!

The warehouse that was originally used to store materials was transformed from a natural cave, with a slightly semi-circular irregular space, and now, the rocky ground of the warehouse, which was relatively flat, has collapsed by nearly half, revealing a dark hole!

The gold thief crouched on the edge of collapse. rubbed his fingers against the broken hole of the rock, twisted the stone powder on his fingers, and turned back to the crowd: "The collapse time of this cave will not exceed half a year, it should be between three and four months!"

As he spoke, he sniffed the slightly dull, foul-smelling air in the warehouse, and added, "That flying head has also entered here!"

It all seemed to make sense, a few months ago, the depths of the dungeon had collapsed for some reason, so much so that a certain flying head and a colony of giant rats had run up from underground.

Everyone looked at each other. In unison, he said, "Ruins!?"

It's not strange that there will be giant rats underneath, but the appearance of dark demon rats and flying head barbarians is obviously not normal, this kind of supernatural monsters, most of them are mutated by the influence of some special environment, especially the flying head man. This thing is almost inseparable from the corpse, but where is the corpse from underground?

The Great Bang of the Leylines more than 1,700 years ago!

Countless under the influence of some mysterious force. Historical remnants sunk into the ruins of the ground!

Although Jialan has been here for this time. I have almost searched through the large library of Kemo University, but the information about 1700 years ago is only vague myths and legends.

Among these unknown myths and legends, many of them mention a strange phenomenon, that is, when the leyline explosion occurred, the sky collapsed, the space was shattered, and a large amount of mysterious energy buried in the depths of the leyline was released.

Huge Arcane torrents, elemental tides. Spilling out of the shattered chasm between heaven and earth, an inexplicable vision of heaven and earth was formed, and mysterious energies infected plants and animals, causing them to mutate unpredictably.

Entire continents crumbled and shattered into pieces. One after another, the magnificent cities slowly "sank" into the ground under the influence of mysterious forces.

Note!

In an ancient biographical file, Jialan sees that some cities "sink" very slowly, even for days or even weeks, as if they were a pair of mysterious palms that pressed them into the ground and planted earth on them.

Those who possessed powerful supernatural abilities seemed to be imprisoned by the energy released by the Leyline Blast and suddenly disappeared en masse.

On the contrary, those civilians who had no strength were not affected too much, but instead evolved under the attack of the elements, adapted to the environment with a high concentration of elements, and thus survived.

Some religious people swear that this is the divine punishment of the gods, using divine power to erase the filth of the world and those blasphemers, and re-open a new era, which is why all species were not wiped out in the leyline explosion.

For a "non-believer" like Jialan, this kind of rhetoric is naturally nonsense, but there is no reasonable explanation for it for the time being.

However, the information mentioned in these dossiers proves that a large number of pre-civilization cities were "sunk" into the ground during the earth-shattering collapse more than 1,700 years ago, forming a large number of largely well-preserved ruins and underground urban agglomerations.

After the Apocalypse, civilization began to revivenation, and archaeology and exploration became the most popular industries in the new civilization, and it can be said that the new civilization was established on the basis of excavating the remains of those previous civilizations.

The excavation and reproduction of any of the pre-civilization techniques will bring a huge change to the new civilization, such as the dwarf's floatship technique, the goblins' steam construction technique, and the dwarven gunpowder technique......

It is precisely because of these techniques that the process of civilization has been promoted, the great integration of races has been accelerated, the emergence of the city-state ruling system has diluted the constraints of the state and race, and a special civilization model of the new era has been formed.

In any case, as those mysterious underground cities are gradually discovered by explorers, archaeologists, and mercenary groups, some truths that have been buried in history are also coming to the surface, and what has surfaced is naturally those creatures that were buried underground in the explosion of the leylines.

All kinds of strange creatures are constantly being discovered by explorers, bringing both cognition and death, and the Dark Demon Mouse is one of the most common monsters in those underground ruins.

Therefore, since there is a dark demon rat in this dungeon of Doom Castle, as well as a rare monster like the Flying Head Man, then there is almost more than eighty percent chance that there is an unknown ruin underneath this!

Everyone except Jialan was excited, because for them, ruins meant danger and death, but they also meant wealth and opportunity, especially if an undiscovered ruin was worth even more incalculating.

"Rope!

"I'm down... There's a hall down here!"

"Be careful! there's a giant rat down there!"

After eliminating a small group of scattered giant rats, there was almost no need for human orders, and all the mercenaries, including the head of Kenmet, were busy, and even the old Jimmy, who was not part of the Golden Two-Headed Dragon mercenary group, instinctively used his experience to start scouting the ruins hidden under the dungeon warehouse.

It was a circular rock hall, and the entrance to the collapse was located right in the middle of the hall, with a drop of about ten meters from the ground and the ceiling, and the thickness of the collapsed rock formation was two or three meters.

I don't know why the rock layer has cracked so thickly, and the remains that have been hidden for many years have been exposed, and recently, it seems that there has been no earthquake near the Sea Wall Mountains.

The dusty floor of the hall is littered with crumbling rubble, and the circular walls are carved with murals and reliefs of unknown content, most of which are already mottled.

Carefully stepping over the rubble, Jialan planned to walk to the wall to look at the mural, hoping to judge the origin of this ruin from the content above, but after only taking a step, he stopped and reminded loudly: "Everyone be careful, something is wrong here!"

He keenly sensed that there was a strange aura in this rotunda, but the underground ruins, something was wrong, and it was normal if everything was normal.

The mercenaries carefully searched the hall and found scattered bones and rotten weapons among the rubble, only four of which were still intact next to the wall, one of which was standing against the wall, with a metal spear pierced through its chest, and hung on the wall.

The bronze spear seemed to be a good thing, and it was still in decent condition when the other metal weapons had decayed, and Kenmet's gold thieves walked over and seemed to try to pull the bronze spear out.

"It's best not to touch it! I wonder if you've ever encountered the undead? Some of the dead bones and the artifacts they used in their lifetimes are very likely to contain their broken souls!"

Jialan reminded: "Of course, those weapons that kill them are more likely to be resentful, and the indiscriminate contact of these creatures is likely to cause the undead to resent the living beings, causing them to regain their activities. ”

The mercenaries looked at each other, and the golden thief withdrew his hand from drawing the bronze spear, although they were all veteran mercenaries who had been experienced in many battles, but in a place like the ruins, the magician's advice still had to be listened to.

Venturing in the ruins, it is difficult not to encounter these supernatural beings, they have seen too many deaths caused by greed, most of them are just like what Tongjialan said, caused by touching the relics of those undead creatures.

Of course, the main purpose of entering the ruins is to find the treasures that are buried in the ruins, and it is impossible for the mercenaries to turn a blind eye to the various treasures scattered on the ground, but it is also necessary to explore the environment before taking the treasures.

Being able to be promoted to gold-level mercenaries alive means their strength in itself, and they naturally won't be as anxious as those junior black iron mercenaries, for fear of being robbed of the treasures they found. (To be continued......)

PS: Lao Sao: Ask for a ticket, what do you think? Try today to see if you can add more to the four chapters you owe!