"Of course, the situation in the underground world is more complicated, and we are also using our lives to investigate the news for you, so the fee is naturally a little higher."

The big werewolf rubbed his hands and said obscenely, he looked at the bag of gold coins in Lin Han's hand, his eyes were full of greed, Lin Han suspected that if he didn't give it to this guy, this guy would jump out of the cabinet and grab the bag.

"Hehe, that's right, that's right, come to the respected undead lord, this is your intelligence, and by the way, I will send you another news, there are several dangerous areas here, such as the Evil Eye Cave, if you have enough strength, you can go there to see."

The big werewolf greedily counted the gold coins in the cloth bag, and he couldn't care about Lin Han at all, but fortunately, this guy told Lin Han all the 4 coordinate points before counting the gold coins, and there were also 4 more points of light that were constantly shining in Lin Han's fog of war, and Lin Han could find these special buildings as long as he moved towards the location of the light points.

However, Lin Han still cared more about the information that the big werewolf gave him, those dangerous places should be the dungeon area, and the Evil Eye Cave, there is no doubt that it is the gathering place of the Evil Eye. For the evil eye, Lin Han is still very interested, itself reduces the enemy's defense ability can be superimposed with the disintegration ray during the battle, if the disintegration ray is combined with their ability several times, the enemy's defense can be completely emptied.

At that time, the enemy will take the full damage of Lin Han's troops, which is an extremely fatal problem, and a big problem that the mid-level troops can crush the low-level troops is their high defense, if this defense is removed, the middle-level troops will also become extremely vulnerable when facing the low-level troops that exceed their own number.

Lin Han had seen this situation more than once, and the Minotaur himself was also considered an extremely strong melee class, but in the face of the high-defense Darkblade Overseer, he was actually helpless, and if he couldn't kill the Darkblade Overseer in a few rounds, they would face Lin Han's crazy counterattack.

And if there is really such a copy, it is very likely that the class of troops produced will be the evil eye, and Lin Han also began to wonder, should he give his troops such a team of evil eyes? This is not delusional, in the eternal realm, players can not only bring troops of their own race, but after the troops are mixed, there will be a small or large-scale reduction in morale, which is not a problem for Lin Han, players can lead different troops through different heroes to avoid this situation, as long as there are no two different races of troops in one hero unit, there will be no morale punishment.

The most important thing is that Lin Han, as a player of the Graveyard Clan, does not have such a problem as zài whether it is the Underworld Clan or the Graveyard Clan, and the only thing to worry about is the morale of the Evil Eye after he really joins the Evil Eye.

The deeper the exploration of the underground world, the more Lin Han felt that this underground world was huge, the area they explored was already very large, but it was only a small corner in the map of the underground world, which showed how vast this world was.

The more this happened, the more excited and nervous Lin Han became, because once he had enough strength to conquer the entire underground world, this world would be his strongest support. But the more this is the case, the greater the danger he faces, monopolizing an underground world, which will make any player or even a guild crazy, if this news spreads, Lin Han is sure that one day, he will become the primary enemy of the players of the entire dark camp.

Develop! Develop! Lin Han suddenly felt that he was carrying a big burden, if he wanted to ensure the safety of the underground world, he had to make his power stronger, this was just a starting point, and the future continental battles would require strength, without strength, let alone fighting with other guilds, he would not even be qualified to protect himself!

"Lord, what's wrong with you?"

Oriana, who fought with Lin Han, found out that Lin Han was wrong for the first time, his fighting style was changing, the special control mode would be used in every battle, Oriana felt it, Lin Han was practicing, and every battle was almost a lossless situation, and the number of dark spirit shooters and dark blade overseers controlled by Lin Han was also increasing, but Lin Han not only did not have a little difficulty, but became more and more familiar with this control method.

"Oriana, you start cleaning up the area here, I'll have to go back to town first."

When Lin Han's troops were all crammed with a mess of troops, Lin Han finally had the idea of returning to the city, there were a lot of recruitment class buildings in the underground world, especially the caveman lair, this kind of first-order army recruitment building didn't know how long it had accumulated here, almost every caveman lair had more than 100 cavemen waiting to be recruited.

Lin Han didn't let go of these low-level troops, mosquito legs are also meat, he is in urgent need of troops now, even if it is dozens of units of cavemen, as long as Lin Han brings them back to the town, he can convert 1-2 units of dark spirit marksmen, so cumulative, that is also a very considerable number.

And after filling his own troops, Lin Han asked Oriana to wait for him in that area, and he returned to the town with this group of troops, where he had important things to do besides sacrifices.

In the Tomb of Research, the corpse witch looked at Lin Han quietly, in front of Lin Han were two parchment scrolls, which showed the technology tree he could now choose to upgrade, in addition to town technology, there was also troop technology, what Lin Han cared about was troop technology.

At the end of the class technology, Lin Han clearly saw the technology tree belonging to the underworld class, which was different from the upgrade of the technology tree of the cemetery clan, compared to the upgrade of the technology tree of the cemetery clan, the upgrade of the technology tree of the underworld class was simpler and more powerful.

"Underworld Morph Shift: Researching this technology requires 20,000 gold coins, 30 pieces of wood, 30 units of stone, 30 units of ore, 15 units of crystal, 15 units of gems, and 15 units of sulfur. Time: 6 hours. When this technology is researched, a series of Nether class tech trees will be opened. ”

This was the beginning of the underworld technology, and under this technology, Lin Han saw the true ability of the underworld class - dual form transformation.

"Dual Form Transformation Ability: The Underworld class itself has two different forms, and this ability will be activated after the Underworld Morph Transformation Research, and all Underworld classes will activate the ability-Final Form, which allows the Underworld class to enter the true Underworld Morphology state in a short period of time, and obtain additional attributes and abilities."

This ability is just the beginning, in the following days, Lin Han saw all kinds of research technologies, from the Dark Spirit Archer to the Dark Blade Overseer, different research technologies to improve different abilities, as well as specialized ability technology research, all in all, this is a huge bottomless pit, once it starts, Lin Han will have to invest a lot of resources and gold coins into it.

The underworld form of the Dark Spirit Archer is called the Soul Chaser, and the level has been increased from the 3rd to the 4th level, and the attributes have also been greatly improved, in addition, if Lin Han studies the ability of the technology tree, it will also open the 3 different abilities of the Soul Chaser Hunter - Night Soul Chasing, Evil Spirit Arrow Rain, and Cruel Hunting.

The Darkblade Overseer's underworld form is called Berserk General, and the rank is raised to level 5, and at the same time, it will obtain three abilities: Cruel Blade, Invisible Shield Wall, and Sweeping Might, but if you want to switch between normal form and underworld form, Lin Han also has to pay attention to an additional attribute enabled by the underworld class - dark spiritual power.

As long as the underworld form conversion is studied, all the underworld arms in addition to health and magic power, but also have a special attribute - dark spiritual power, dark spiritual power will only be obtained in battle, the underworld troops will convert the number and strength of the dead enemies into dark spiritual power, and the troops entering the underworld form need to consume dark spiritual power, which is about 1 point of dark spiritual power can support 10 seconds.

"It's going to be a very difficult time now!"

When he saw this series of abilities, Lin Han understood that even if it was a sinkhole, he had to jump down, the real strength of the underworld class was to be opened at the end of this technology tree, and the only way for Lin Han to let the underworld class exert its full strength was to open this technology tree.

However, this technology tree is not open now, and the rare resources in Lin Han's hands do not exceed 10 units, and he got 25 units of rare resources as a reward for his previous tasks, but when he was on the exchange, he sold 20 units of rare resources, so now there is a lack of rare resources.

If he was given a few more days, he could have gathered these resources, but he had one more important thing - to build a store for the undead. This special building itself is going to be built in 2 days, but in the current situation, there is also the advantage of building it first, and now there are things that Lin Han needs very much in the undead shop.

"Ding! Consume the special building blueprint - Undead Shop x1, consume 10,000 gold coins, 30 units of wood, and 30 units of stone to build a special building - Undead Shop! ”

After the architectural drawings in his hand turned into ashes, a building that looked like a skeleton appeared not far from Lin Han, Lin Han walked into the undead shop, and as soon as he looked up, he saw a vampire in a black evening dress smiling at him and said, "Welcome to the undead shop, here, you can buy what you need, as long as you have enough gold coins." ”

"City Return Scroll: Use to summon the user and the troops around the user back to town after 2 seconds of channeling. Limited use: Single. Purchase price: 1500 gold coins/piece"

"Arcane Bottle: Special consumable items. After use, it will regenerate 120 mana for 30 seconds. It can be used in battle, and repeated use will only refresh the duration of the potion and will not stack the effect. Purchase price: 500 gold coins / piece"

"Medical Scroll: Special consumable, recovers 100 health points for all lifeform units within 20 meters of the user, cooldown: 30 seconds. Purchase price: 2000 gold coins per piece. ”