Due to the terrain conditions, the team was composed of Jia Lan and others and was selected to carry out the mission.

  Before setting off, Jia Lan took out a crystal mirror and handed it to Casey, Dave and several senior mercenaries who came after hearing the news.

  Jia Lan explained to them that in case of emergency, they would contact them through this "communication mirror".

  After properly arranging support and logistics, the team went deep into the dungeon of Doom Castle again.

  Surprisingly, even though the team included three gold-level warriors and a standard silver team, they were still repelled by a group of giant rats.

  This performance embarrassed Kenmet.

  In order to maintain the reputation of the golden two-headed dragon and vent their emotions, they decided to completely eliminate all monsters in this dungeon.

  When the team entered again, they were surprised to find that the strong light emitted by the "Staff of Eternal Light" illuminated the surrounding environment very clearly.

  Not only did the giant rat group disappear without a trace, but even the bodies of the giant rats that died in the battle were gone.

  Jia Lan looked suspicious.

  He was well aware of the power of the forbidden fireball he had cast earlier.

  Despite the amazing momentum, after experiencing the extreme splitting and elemental dispersal, the remaining "element resonance" effect no longer posed a fatal threat.

  Otherwise, in such a narrow space, their team would probably have died.

  "Did the bodies all get swept down by the air wave?" Kenmet peered down in confusion.

  There was silence in the darkness, as if the dark demon rats and giant rats had been completely wiped out by the small forbidden spell.

  "Maybe the bodies were dragged away by rats." Old Jimmy speculated, "Dark Demon Rats even eat rotten corpses, there is no reason for them to let go of those tempting roasted giant rat corpses!"

  "Dark Demon Rats eat rotten corpses because of food shortage. But this place leads directly to the surface, not the deep underground world. The rats can go out to find food. If they need food so urgently, why have they never left this dungeon to attack the hired workers of Doom Castle?"

  "Afraid of light? Although rats hate strong light, light will not harm them!" Jia Lan frowned and questioned, "And the sense of smell of rats is much more sensitive than that of dogs. They can't fail to notice that there are so many people gathered in Doom Castle. I suspect that there may be something under this dungeon that can control these giant rats."

  As a librarian, although Jia Lan rarely participates in battles, it does not mean that he lacks understanding of the ecology and habits of various creatures. He has dissected a lot of creatures by himself.

  When Jia Lan first saw the so-called "dark demon rats" by Kenmet, Old Jimmy and others, he found that these demonized giant rats should be the descendants of the low-level "violent rats" common in his time.

  However, the descendants of these violent rats seemed to be infected by some evil power and had undergone serious mutations.

  Something that can control the dark demon rats?

  Old Jimmy, Kenmet and others looked at each other.

  The dark demon rats are evil monsters. I'm afraid only the devil can control evil monsters?

  With Jia Lan's reminder, the team became more alert.

  They did not relax their vigilance because there was no rat in the spiral staircase.

  After some exploration, they arrived at the bottom of the spiral staircase, which was 80 meters deep.

  Sure enough, except for some dilapidated and rotten debris, no giant rat corpses were found here.

  Walking out of the spiral staircase, they came to a small rock hall with a small area.

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  The ground was covered with a thick layer of soil that flowed into the dungeon with rainwater, making the ceiling of the small rock hall look particularly low.

  Originally, there should be a passage or door leading to other areas of the dungeon in the small rock hall.

  Now, except for a huge rat hole that led to an unknown place, nothing was found.

  After Kenmet's 'Golden Level Thief' patrolled the small hall, he checked the symbol on the door lintel exposed one foot above the ground, then looked up and said, "The rat hole leads to the prison area and the warehouse area. The several roads buried by the soil should lead to the interrogation room, the execution room and the guard lounge respectively."

  The dungeon layout of the noble castle is similar. The place closest to the exit is usually where the guards responsible for guarding the prisoners are located, while the area of ??the interrogation room, the execution room and other areas is often not large. No wonder even the giant rats are not interested in them and are unwilling to dig holes and build nests here.

  "In addition, I roughly understand why the original owner of the castle chose to build a dungeon near the sea wall mountain range!"

  The 'Golden Level Thief' scraped the dirt on the wall with a dagger, revealing the rock wall below: "This is not artificially excavated, but rebuilt and repaired on the basis of the original cave, so this dungeon is so deep..."

  He hit the rock wall heavily with the handle of the dagger, and a few sparks burst out: "Look, this is natural granite, there is no trace of stacking, no wonder the positions of these passages are so irregular, they are originally composed of several natural caves."

  This also explains why the spiral staircase in the dungeon is 80 meters deep. Although digging a spiral stairwell is a huge project, it is a relatively easy choice compared to digging the entire dungeon.

  Kenmete nodded and said, "Keep going inside!"

  The flying head barbarian transformed from the head of the hired worker has long disappeared, but no one cares about its whereabouts.

  Not only was it covered with "tracking powder" by the 'Golden Level Thief', but it was also marked with the 'Secret Mark' by Jia Lan. As long as you follow the tunnel, you can always find it.

  With the 'Golden Level Thief' leading the way, everyone was much easier to move forward.

  Besides, this was just a dungeon for prisoners, not a treasure house for storing treasures, so there was no need to worry too much about the existence of traps.

  They quickly passed through the cave dug by the giant rat and entered the prison area of ??the dungeon - where the prisoners were held.

  The air was filled with a strong smell of dust, mixed with a strange smell of burnt odor and damp and moldy smell.

  Although the fire cloud just now almost collapsed this place, it also formed a strong air flow, so everyone didn't have to worry about suffocating here.

  The prison area was not close to the spiral staircase, so it was relatively dry.

  There was not much wet soil on the ground, only a thick layer of dust, and a lot of claw marks remained on the dust.

  The small cell that was originally separated by logs has now completely turned into a pile of wood chips, which were gnawed to pieces by the giant rats, making the space seem much more empty.

  The ‘Golden Level Thief’ even found a large number of bones in the wood chips, most of which had been trampled into pieces by the giant rats and turned into bone chips.

  But with rich experience, the Golden Thief still judged that this irregular prison area, which was converted from caves of different sizes, originally held at least more than a thousand prisoners!

  "This is the skeleton of the 'little goblin'!"

  Old Jimmy recognized the species of the abnormally short tibia in the hand of the ‘Golden Level Thief’ at a glance.

  He dug out several large and small bones from the wood chips, bone chips and a large amount of granular giant rat feces, and placed them together with the complete tibia of the 'Little Goblin' found by the ‘Golden Level Thief’.

  "Look! Little demons, big demons, bear demons... all the monster families are here!"

  Old Jimmy pointed to three tibias of different sizes placed side by side and said, "The original owner of the castle must have been a goblin slave owner in the chiefdom era, and he must have a powerful slave-catching group under his command! No wonder there are rows of barrack-style buildings in the Castle of Doom, that should be their military camp!"

  Jia Lan had a general understanding of the history of Zilargo County and Dagon County after the "Apocalypse Era" from the books in the library.

  Before the Apocalypse Era, that is, the "Dawn Calendar" era where Jia Lan originally lived, the Kingdom of Zilargo was the territory of the dwarves, and humans were only a "minority race" here, with a population of only about 15％ of the total population.

  The population of dwarves in the Kingdom of Zilargo accounted for about 60％, plus some dwarves and other races, which constituted the population structure of this small kingdom located on the southern coast of the Khorvaire continent.

  The Kingdom of Dagon, which is adjacent to the Kingdom of Zilargo across the Sea Wall Mountains, is the territory of the goblin race, and the number of goblins accounts for more than 80％ of the population structure.

  Due to the harsh geographical environment, the Kingdom of Dagon is more desolate than the Kingdom of Zilargo.

  This is also related to historical issues.

  In general, the ancestors of the goblin race were once glorious. In ancient times, they even relied on their powerful construction and manufacturing skills to once rule the entire Khorvaire continent, and they were well-deserved kings of the continent.

  Unfortunately, due to various reasons, the Dakan Goblin Empire established by the great goblin fell, and the descendants continued to degenerate. The goblin race once became a synonym for ignorance on par with beasts.

  After the Apocalypse Calendar, the goblin civilization gradually recovered, but not as fast as the rise of the dwarf civilization.

  The rapidly developing dwarf civilization requires a large amount of cheap labor, so a war for slave population broke out between the Kingdom of Zilargo and the Kingdom of Dagon.

  The final outcome is obvious. The goblin race and the dwarf race, which were both injured, failed to defeat each other.

  Humans took the opportunity to migrate from the inland areas of the continent, which were full of dangers, to the southern coastal areas on a large scale, and became the main population of the Kingdom of Zilargo, becoming the masters of this place.