The enemies invading the underground castle have been completely annihilated, and the lord of the castle has gained 6,428 experience points.

  [Usable trap count: 3/20]

  "After all, the family foundation is still too weak."

  Looking at the system prompt in front of him, Zhan En let out a long sigh and shook his head helplessly. He had almost used up all the traps he had set up over this period of time just to deal with fewer than 50 invaders. If it happened again, Zhan En would probably have to rely on himself to resist. Moreover, what made Zhan En even more depressed was that after killing so many elites, he only gained a little over 6,000 experience points. But in return, he had almost used up all his traps, which was simply not worth it. Although these traps were very powerful, they also had durability limits, and using them once would deduct a lot of durability. Furthermore, the traps themselves required a lot of materials and money, so it could be said that Zhan En had lost a lot of blood and treasure in this battle.

  But thats not surprising, according to the experience calculation rules of the dungeon system, enemies killed by traps will only give players one-third of the experience. Only invaders killed by the players monster legion will be calculated with full experience value. This is of course to guide players to spend money summoning a monster legion instead of setting traps - this shameless system design has gone too far!

  Thinking of this, Zhan En let out a cold hum and reopened the system panel in front of him. Soon, the information about the underground castle quickly emerged.

  Dungeon Construction System

  Castle Lord: Zhan En

  Rank: 3rd Rank

  Progress: 4028/15000

  Dungeon resource quantities: Ore (5100), Mercury (3700), Gemstone (1650), Crystal (5850)

  Special Resources: Sulfur (300), Lumber (5)

  Subordinates: 23 people

  [Own buildings: Underground City Heart, Study Room, Bedroom, Nest, Blackstone Beacon Tower]

  Buildable Buildings: Grand Library, Training Grounds

  The dungeon level has been upgraded to three.

  Magic slots +1, Population base +1

  Get brand new architectural drawings

  Blueprint: Dungeon (Whip, Wooden Horse, Candles. Nothing is more thrilling and exciting than playing bondage games in a dark, damp cave. Watching the once proud enemy lower their head in humility, begging for your forgiveness and mercy in a low voice, that kind of electrifying pleasure is simply intoxicating and irresistible) —— Ability Overwhelm, Captive Count +1

  Blueprint: Dark Sanctuary (This is where eternal darkness resides, this is where the evil shrine lies, offer your sacrifices, open the gates of the otherworld, let the guardians of death descend upon this land, praise your greatness and glory) ——— Unlock: Large-scale Summoning

  Blueprint: Forge Workshop (Weapons, Traps, Equipment. For soldiers, shiny equipment is always better than second-hand goods stripped from corpses. The forge workshop is the foundation for building a strong army. Remember, tattered soldiers will never stand on the corpse of heroes) —— Refine +1, Special Construction Conditions

  Its been three years already...

  Looking at the underground castle system in front of him, Zhan En narrowed his eyes. The first three levels of the underground castle were just for players to practice, and from now on, it was the real beginning of the underground castles grand construction. And as for Zhan En, whether he could build a massive underground castle army, conquer the entire North Land, and march towards the surface world, all depended on whether he would be able to put in the effort from now on!

  "Master."

  Just then, the door of the study opened and Zhan En saw Enoia walk in, bow to him, and only then did she speak.

  "The battle has ended and the dungeon did not suffer too much damage. The goblins are currently conducting a cleanup. According to your orders, we have captured Miss Eris."

  "Thank you."

  Upon hearing Enyas words, Zhan nodded his head and then looked towards the girl in front of him.

  "But anyway... I have to say, its quite impressive that you were able to defeat her. If Im not mistaken, she should be a high-ranking sorceress."

  For Eris, to be honest, Jain also found it quite troublesome. So he would let Vilna work with Enyo together, and Jain even made preparations for himself to take action if the two were not enemies. Its just that I didnt expect Enyo to clean up the opponent by herself, which really surprised Jain. After all, from the data, this should be a very difficult thing.

  After arriving in this world, Zhan Yan had also used the system to compare the combat power of the real world, and thus knew its division standards. Among them were the following stages.

  (Non-human)

  Normal human level

  ★★ (Above ordinary human to elite)

  Two and a half stars (Almost Excellent)

  ★★☆ (High Elite to Master)

  Three Stars (Almost Master)

  ★★★☆ (Grandmaster to Legendary)

  ★★★★ (Near Legendary)

  ★★★★☆ (Legendary to Demigod)

  ★★★★★ (Demigod)

  When dividing these classes, the dungeon system simply takes into account the opponents own strength and does not consider equipment, weapons, or other additional attributes. In a way, it is the most intuitive expression method. According to this system, Enyos combat power is only one and a half stars, while Iris combat power is between two and a half to three stars. In theory, even if you add a Vilna, it would not be easy to deal with high-ranking mages who have reached the level of three-star combat power.

  But what Zhan Yan didnt expect was that Enya actually single-handedly took down Eris? How did she do it? Even if the dungeon system itself didnt calculate equipment strength, Enya didnt have any particularly powerful weapons either, except for her innate lightning magic +1, and she shouldnt have had much combat power.

  "Hoo... hoo... hoo..."

  Upon hearing Zhan Ens words, Enya suddenly seemed to think of something and revealed a few hints of an eerie smile.

  "Thats right, Master. If she were an ordinary high-ranking wizard, I would indeed be in a difficult position. But fortunately, that Miss Eris is not an ordinary wizard... but a magician."

  "Pffft!"

  Upon hearing this, Zhan En almost spat out the water in his mouth. He finally understood why Enoyas smile was so sinister.

  Mages are a group of very special spellcasters who possess supernatural bloodlines, their bodies contain powerful chaotic magic, and whats more, the most special thing about mages is that they dont need to rely on any external forces, just a gesture and an action can trigger spells, and its unlimited use!

  The most distinctive feature of the mages is that they can manipulate a flame called magic flame, which is not an ordinary flame but a magical fire bursting out from their internal blood vessels. Any creature that touches this flame almost has no choice but to surrender. From this point of view, Elise, as a high-ranking mage, is indeed not a pushover.

  Of course, the mages are not without their flaws, and their physical condition makes it impossible for them to learn various spells like other spellcasters. However, this is not a problem for the mages, as many times, they can achieve similar effects with just their own magical flames.

  From this point of view, Elise is indeed a very powerful spellcaster. Not to mention Enya, even if the same high-ranking mage encounters her, theres nothing good to eat. Why can Enya not only retreat unharmed but also easily defeat Elise?

  As mentioned before, the mages flames are abnormally powerful. Any creature that comes into contact with these flames will not have a good outcome.

  Any "organism".

  Thats right, the mages flame has a very distinctive characteristic, that is, it is completely and utterly a collection of negative energy!

  If they were living organisms, the invasion of negative energy would naturally be fatal to them. The reason why other spellcasters cant beat the spellcaster is also due to this. Negative energy is one of the most troublesome things, and any living organism will want to stay away from such a life-threatening thing. Even if you use a spell that is immune to negative energy, it has a time limit - but the spellcasters magic flame is inexhaustible. In this sense, the spellcaster is much more difficult to deal with than other mages.

  But Enyo was different, Enyo from head to toe, inside and out, was a thorough undead creature. And it was precisely because of this that Elises magical flame strike was just a comfortable hot bath for her, not only did she not suffer any harm, but also gained a temporary surge in power, as a result, Elises attack not only failed to achieve the expected effect, but instead strengthened the opponents power... It was only natural that Enyo would smile so eerily.

  Its no wonder that if she were to switch with anything else, Elise would be a dead end. But Enyo just so happens to be an undead creature. This is the only natural enemy of mages...

  This is really a case of blaming oneself rather than society.

  In the depths of his heart, Jain mourned Elises bad luck for three seconds before quickly throwing it to the back of his mind. After all, as the master of the underground city, he still had many things to do. As for the trouble that was Elise, it wasnt too late for Jain to deal with her when he got around to it.

  "After the battlefield cleanup is done, dont rush to restore the traps. Have Bixie lead the goblins to dig out a 4x6 space on the south side. Its about time we built a prison anyway. We cant have our little loli mage lady without a place to sleep."

  "Alright, Ill go and do it right away."

  After listening to Zhan Ens command, Enya nodded and turned to leave. It wasnt until then that Zhan En turned his head, looking towards the shadow in the corner of the study wall. At first glance, it seemed like there was nothing special about that place, but Zhan En could clearly feel a gaze as cold as a sword blade emanating from there, coldly sizing him up.

  "Next, theres something I need you to do, Miss Verna..."

  With a gentle smile, Zhan En first stretched out his hand to push up his glasses before speaking slowly and deliberately.