One-third of the task has been completed, and Mu Feng has a certain understanding of this task. Basically, there are two difficulties in this epic quest issued by Assal. One is how to successfully infiltrate the stronghold heavily guarded by the Demon Legion, and the other is the ability to take on the boss alone!

If it weren't for the fact that she had played the Rogue class and was known as the Star Evil of the Thief Dynasty, she now has Fluttershy, who is not in a team to help find her way. Mu Feng's difficulty in infiltrating the fortress will increase by several levels.

But in the end, when he faced the legendary boss, it was a real display of combat strength, and no one could help Mu Feng. In the last battle with Phelps, Mu Feng's finally broke through the shackles, and his combat strength in the game improved again.

As the second link of the mission, the strength of the fortress that Mu Feng needed to infiltrate this time was much stronger than the previous one. Outside the fortress, there are no more demonic creatures roaming around. In their place, there are neat patrols of the undead.

The demons did not send the demons to patrol, but sent the undead who would never get tired and would complete the task diligently. Each patrol squad has an undead knight, four ghouls, and a necromancer.

Mu Feng was on the edge of the fortress and tried to attack a patrol team, and obtained the strength data of these patrols.

The Undead Knight should be the captain of this patrol, the elite of the battlefield, with a large realm range, when it finds Mu Feng, it will launch a charge skill to rush towards Mu Feng. Ghouls are cannon fodder creeps, and the necromancer in the back can easily bring the dead ghoul back to life.

Mu Feng needs to kill the Undead Knight first to prevent his mount, the Skeleton Horse, from trampling and stunning himself. Then there are the necromancers who can resurrect ghouls, and when these two are killed, the remaining four ghouls are not a threat at all.

Just like last time, Mu Feng tells Fluttershy to infiltrate first, while she slowly cleans up the patrols from the perimeter.

Compared to the unorganized abandonment of demons, these undead are obviously much more organized. When the undead knight found Mu Feng, he would launch a charge and blow the horn at the same time, and the patrols around him within a certain range would be alarmed and pounce towards Mu Feng!

Two or three groups of patrols are not a problem, but Mu Feng is afraid of attracting more, so he should try to be more careful, only lead one team over at a time, and slowly eliminate and advance.

I don't know how many years ago, there was a terrible battle here. Outside the fortress, there are many ruins of engineering equipment. Mu Feng used these siege weapons as a cover, trying not to let the demons above the fortress find out his traces. Even the Undead Patrol tried to lure the back of the ruins to kill.

This stops and hides, and finally he touches the bottom of the fortress! Fluttershy's figure is also visible, and she has turned on her stealth to scout all the surroundings of the fortress.

"How's it going, what's the catch?" Inevitably discovered, Mu Feng could only stand as close to the black wall of the fortress as possible, the gray cloak made him almost integrated with the city wall, and he couldn't act easily.

"There is no entrance to the fortress other than the main entrance...... Maybe I didn't find it. Fluttershy says apologetically.

"No?" Mu Feng's heart was Ling, did he want to let Mu Feng sneak in from the main entrance? If there is invisibility, Mu Feng is not afraid, but not this time...... Wait a minute! Mu Feng suddenly thought of a skill that he hadn't used for a long time, maybe this time it could be used to give it a try!

"Poof! ~"A stone fell outside the gate of the fortress, alarming the four elite demons guarding here.

"Roar! ~Enemy Attack! The four demons looked in the direction where the stone had fallen, and saw a gray figure fleeing. The four demons didn't even think about it, they directly brandished their weapons and chased after them!

"Success!" At this time, Mu Feng had already arrived at the door. As for the figure that escaped, it was just his doppelganger!

Mu Feng's clone skill, when released, can be invisible for a short period of time, and the clone created can cause the same damage as Mu Feng, but it has to bear 400% damage. In the face of an evenly matched battle, Mu Feng summoned a clone, and the opponent could basically kill his clone in an instant by throwing a skill. When fighting the boss, the range skill that rubs against the corners and corners is also lost instantly. After all, this is just a clone, but it doesn't have Mu Feng's powerful dodge ability!

Mu Feng used the real short-term invisibility to let the clone seduce away the group of demon guards who couldn't tell the real clone. When those demon guards rushed over, Mu Feng's true body happened to be revealed, but it was only a matter of a moment. Mu Feng immediately used the blade twice in a row to shuttle, and then flashed directly behind the door, and no one could see it.

"That's amazing!" Fluttershy never imagined that Mu Feng would be able to use such a brief period of invisibility. In this world, only the former Emperor of Thieves Star Evil should be able to do it! Back then, Mu Feng used the thin body of a thief to brush the existence of various demon god-level bosses!

"Alright, don't be amazed just yet, let's move on......" Mu Feng said with a smile as he continued with Fluttershy.

In order to make it easier to defend and difficult to attack, the fortress was entered through the gate and faced a new section of the wall, but fortunately, there were several small gates on top of the wall. In normal times, this small door is open, and it will be closed in wartime. Enemies who have worked so hard to break through the gate will be caught between two sections of the city wall, killed by the demons' strange ranged abilities!

"Poisonous!" The Demon Legion is almost undefeated in its ability to sweep across the universe, and in addition to its innate strength, many branches of demons also possess this super intelligence. You can get a glimpse of the whole panther from the special machinery made by the demons.

"yes, yes!" Fluttershy even claims to be, but takes a picture of what she sees with the intention of passing it on to Frost. If Sky Castle also has such a design, the defense capability will inevitably be improved again!

When you enter the hinterland of the fortress, all you see are demonic monsters. The fortress is indeed strong enough, but there don't seem to be many demonic monsters inside. Could that be why they activated the Undead Patrol? Mu Feng thought secretly in his heart.

Fluttershy explores the path, and Mu Feng follows. If you encounter a small group of enemies, you will find a way to destroy them, and if you encounter a large group, you will have to find out if there is a new route. Groping along the way, Mu Feng and Fluttershy stumble to the center of the fortress.

Here, the number of demons has become even greater. Mu Feng wanted to move forward, but encountered a lot of obstacles.

The mission must be completed, otherwise it will be downgraded two levels in a row. At this time, it takes a month or two to make up for the two levels. If the task fails, Mu Feng can only give up the competition for the rank list, which is definitely not the result Mu Feng wants.

In the center of the fortress, there were many strange buildings, Mu Feng looked around, and suddenly had an idea.

He crept into the shadow of a building, and climbed up the rock through the jagged rocks! The demons who came and went, completely unaware that above their heads, there was a sneaking enemy climbing!

Using this climbing skill, Mu Feng continued to go deeper, and actually climbed to the top of this building!

"Hey, it worked!" Mu Feng took out a special prop from the package, which was a special rope provided by the people of Celadon friendly! At the beginning, celadon and Huarong loved the world, and this thing played a big role!