"Ah~" A scream echoed through the underground tunnel, and a dark rune knight casually waved his two-handed greatsword, which was comparable to the length of a person, and threw aside the dwarven corpse strung on the weapon, and the corpse slammed into the tunnel wall, splashing countless blood, and then slowly slid to the ground.

It has been several days since Nicholas's undead legion attacked the dwarven capital of Blackstone City, but the progress has not been particularly smooth, although they have achieved quite satisfactory results in the initial sneak attack, but when they go deep into the dwarves' underground tunnels in all directions, the undead legion's offensive has slowed down significantly.

Dwarven warriors are good at defense, especially in their own homeland with the help of those narrow terrain can give full play to their advantages, and because Black Rock City is deep underground, the undead legion such as the frost bone dragon, Beamon bone beast and other super-large combat units can not enter at all, and just by putting ordinary skeleton warriors into the battle, the undead creatures cannot give full play to the advantage of the number of the undead legion in a narrow space, so in the end, Nicholas can only use the lich in his hand, Dark Rune Knights and Giant Bone Golems form squads to attack the dwarves.

Nicholas's method was very effective, and soon his army won a phased victory, and they attacked the center of the dwarven Black Rock City, which is the most lively and prosperous commercial area in the dwarven kingdom, where the dwarven king Reynolds also lived, and when Ryan and his people entered the black stone city, it was also here that the blacksmith smelted the mysterious ore.

The dwarves who had lost their business district came to their senses, and instead of fighting positional battles with the undead legions, they began to use their advantages to play hide-and-seek with the undead. After tens of thousands of years of excavation by the dwarves, Black Rock City has long had countless tunnels, not to mention outsiders, even the dwarves themselves have no way to completely record these tunnels in their hearts, and in the face of the undead legions that invaded the hinterland, this complicated traffic has also become the last resort to block the enemy army.

The Dark Rune Knight walked along the tunnel for a while, and entered a relatively spacious area, where a lot of wine barrels, food, and a few pieces of damaged equipment were left behind, and it was obvious that there were dwarves passing here not long ago, but there were three entrances to the passage in front of the Black Rune Knight.

The Dark Rune Knight stood in the center of the spacious area, and when he set off, there were a total of 3 lichs, 5 dark rune knights, and 20 giant bone golems, as well as some undead creatures such as elite skeleton warriors and banshee revenants, but in the face of the dwarves' countless passage entrances, the entire undead team had to choose the strategy of dividing their forces to pursue, and as a result, the dark rune knight went alone, and it was time for him to make a choice.

The Dark Rune Knight was a human holy knight during his lifetime, and Nicholas raided the Royal Knights' Cemetery on the day of Catherine and Fernando XIII's wedding, stealing more than a thousand dead holy knights' corpses and transforming them into powerful undead creatures by the demigod lich himself. These Holy Knights were all strong men who were proficient in military and martial arts, and with the support of the Holy Force, they could exert great combat power, and now after becoming undead creatures, the demigod Lich replaced the Holy Power with the Dark Power, allowing these Dark Rune Knights to launch even more terrifying evil attacks.

It is precisely for this reason that these dark rune knights have independent thoughts, just like those lichs, but they are no longer warriors who fought bloody battles against the evil dark forces, but have become one of the most hated undead creatures in life, which is probably the greatest sorrow of these heroes.

The Dark Rune Knight only stayed for a few seconds before making his choice, as it found that there was only one entrance with traces of dwarves passing, and it was clear that those dwarves had escaped from this passage. According to the order of the Lich Lord Nicholas, the Dark Rune Knight should find a passage to connect this plane to the Netherworld while weakening the dwarven resistance as much as possible, and when this passage connection is found and successfully opened, the legion of the half-demon lord Kuze, who has come from the abyss in the center of the earth, can enter this continent, at that time the human race will be too busy to take care of itself, and the undead legion can act more unscrupulously.

"Click!click!" The footsteps of the Dark Rune Knight could be heard far through the empty dwarven tunnel, which was the biggest feature of the underground tunnel, and if you didn't have a special talent, you couldn't hide your whereabouts at all.

"Whew!" When the dark rune knight entered the tunnel less than 50 meters, a large wooden barrel fell from the top of the tunnel, and the barrel was tied with a strong rope, drawing an arc in the air, and smashing towards the dark rune knight, who almost subconsciously raised his hand with a sword, splitting the large wooden barrel, and as a result, all the wine in the barrel spewed out, drenching the dark rune knight with wine syrup.

"him!" several dwarven voices rang out in the tunnel, and several torches broke the darkness in the tunnel and flew towards the Dark Rune Knight from different positions, immediately igniting the wine syrup after touching the latter's body, turning the Dark Rune Knight into a burning man.

"Haha, that's great!"

"This guy killed a lot of our companions, burn it! burn it!"

Several dwarves walked out of hiding with weapons in hand, and they were extremely excited to watch the Dark Rune Knight being devoured in the raging flames. The Dark Rune Knight had been chasing them for more than a day, and many of its fallen dwarven companions had died at its hands, which naturally made the remaining dwarves hate it to the core, so they set a trap against the Dark Rune Knight.

The joyful laughter came to an abrupt end, and the Dark Rune Knight, who was supposed to have died under the flames, walked out unharmed, the black armor on its body still burning in many places, but it did not cause any damage to the armor.

"Ahh......h

"Stupid guy. A cold voice came from behind the black rune helmet, and the dark rune knight swung his great sword, slashing several times in succession, killing all the dwarves who had sneaked up on it before, and then casually raised his two-handed greatsword diagonally, allowing the blood on the sword to flow down the blade to the ground.

A dwarf who was not completely dead was lying on the ground, he barely raised his head and looked up, as if he wanted to see the true face of the demon in front of him, he did not understand why the dwarven clan who had no quarrel with the world would suffer such a terrible price, and he would never understand, because the great sword of the black rune knight swept through his neck, and the dwarf's head flew high and finally fell into the depths of the tunnel, and the dark rune knight took another step and continued to move towards the depths of the dwarf tunnel.

――――――*――――――*――――――"Seventeen, eighteen...... Twenty-one, well, that's probably the kind of people they are. Ryan, who had unleashed his invisibility spell, silently counted the strength of the undead squad in front of him, 4 Dark Rune Knights, 6 Giant Bone Golems, 10 elite skeleton warriors, and 1 Lich in gray lich robes.

Ryan found the undead team about 70 kilometers southwest of the camp on the Cassano Western Line, they were located in the dense mountain forest, and it would have been difficult to find them if it weren't for Ryan's extensive magical eye searching. Judging from the traces left on the dwarven armor before, Ryan believed that this undead team was the one that intercepted the dwarves for help, but Ryan didn't quite understand why this undead team was still near the ambush site, and they weren't worried about attracting Cassano's revenge?

Now that he has found the traces of the enemy, Ryan is not busy avenging those dwarven warriors, he carefully hides his whereabouts, silently observing in the shadows, Ryan hopes to find more traces through this undead team, after all, it is only dawn, and he still has a few hours to spare.

Ryan's wait was not in vain, he soon saw what he wanted to see, the gray-robed lich chanted some spell from time to time, and a large magic circle was faintly visible on the ground under its feet, obviously this lich was constantly charging the magic circle under his feet in order to maintain the operation of the entire magic circle.

Due to the long distance, Ryan can't observe the magic array carefully, so it is not clear what its specific function is for the time being, the only thing that is certain is that the area of this magic array is not enough to bear the energy accumulation required for a powerful killing magic, and it is so far away from Cassano, so the magic array should not be used for Cassano's attacks.

After waiting for more than an hour, Ryan found that the undead team seemed to stay here to maintain the operation of the magic array, which made Ryan's curiosity about the magic array stronger and stronger, with Ryan's current strength, he could prepare a powerful magic to clear the undead team in front of him in one fell swoop before the enemy found out, but in this way, the magic array could not be saved. And the lich was very cautious to set up various magic traps in an area of hundreds of meters around him, and also mixed with those high-level undead creatures to patrol back and forth, Ryan couldn't sneak in without alarming his opponent for a while.