Ling Yufeng knew that as soon as he appeared anywhere in the two floors above, he would immediately startle the snake.

Once the grass is startled, then what awaits Ling Yufeng is a siege by a group of people.

Although Ling Yufeng had made preparations before he came, he knew that the later he fought these mercenaries, the more beneficial it would be for him, especially now, he hadn't gotten rid of the last few surveillances in the office on the tenth floor, and he hadn't gotten to the place where the Heavenly Drill was placed.

So now he has to be very cautious not to expose it.

The way to sneak into the office on the tenth floor was very simple, Ling Yufeng easily pried open the elevator shaft connecting to the top floor, and then jumped upwards with his strength, and then kicked on the opposite wall with inertia, and with the help of the elevator cable, Ling Yufeng successfully came to the elevator door opening position on the 10th floor.

Ling Yufeng, who had reached the 10th floor, did not continue to climb up the cable, but fixed his body tightly on the cable with his feet, and then gently pried open the elevator door on the 10th floor. Then a swallow fluttered its wings and appeared in the corridor of the 10th floor.

Ling Yufeng knew that in the office on the 10th floor, there should be two people monitoring everything in the entire building at this time.

At the same time, Ling Yufeng also knew that in the lounge on the 10th floor, there were now 10 mercenaries gathered there. And his first target is the ten mercenaries.

Exposing his whereabouts before achieving his goal was very disadvantageous for Ling Yufeng. But now, if he wants to get rid of all the surveillance, he must first kill the ten mercenaries. Only by giving priority to taking out more enemies in the first time can your own safety be guaranteed and the ultimate goal can be more easily achieved.

The corridor of less than 100 meters was too close for Ling Yufeng. Ling Yufeng leaned against the door of the lounge and listened carefully, there was no movement inside, only some breathing sounds could be heard, Ling Yufeng knew that these people must be resting at this time, for them, so many people guarding one thing is absolutely safe, so their vigilance is not very great.

Ling Yufeng gently pushed open the door, the door was not locked, these mercenaries did not lock the door in order to make it easier for something to happen.

Ling Yufeng entered the lounge and saw ten people leaning on the sofa and some sitting on chairs, but they all had their eyes closed, and they seemed to have fallen asleep.

One of them simply lay on the ground.

The corners of Ling Yufeng's mouth rose slightly, he walked up to the first person, and with such a light press on his neck, that person immediately fainted.

In the same way, Ling Yufeng quickly stunned nine people.

When he waited for the tenth person, suddenly that person opened his eyes and saw Ling Yufeng.

"Who are you?" As soon as he said this, Ling Yufeng's fist had already hit him.

But that person actually avoided it, followed by one of them, turned over, stood up, and suddenly grabbed a wine bottle in his hand and threw it towards Ling Yufeng.

Ling Yufeng dodged the wine bottle like this, followed to the person, and punched him in the temple, and the person immediately fainted.

With a "pop", the wine bottle fell to the ground, and the sound sounded.

"Not good." Ling Yufeng secretly screamed in his heart, he knew that the sound of this wine bottle breaking would definitely attract the two people who were being watched in the office.

Soon Ling Yufeng heard footsteps, it seemed to be very chaotic, and it seemed that there were more than two people coming.

After opening the door, Ling Yufeng rushed in the direction where his footsteps sounded, but apart from the sound of the wind that drove up, there was no sound under his feet.

Closer, closer, closer. Listening to the sound of footsteps echoing at the end of the corridor, Ling Yufeng knew that on the side around the corner, at least four mercenaries were rushing towards him.

Suddenly, the footsteps in the hallway suddenly stopped, just around the corner of the hallway. It seemed that the mercenaries on the opposite side were really old and spicy, although they didn't know that Ling Yufeng had arrived here, but for the terrain that was so convenient for ambushes, they still adopted the most cautious way to deal with it. Such an enemy is really difficult to deal with.

Ling Yufeng also slowed down slightly at this time, sinking the center of gravity of his body slightly, and at the same time, his hands touched his belt and took out two narrow daggers.

There was only less than 5 meters left from the corner, and Ling Yufeng could even hear the other party's rapid breathing. At this time, the other party is adjusting his heart rate and status, and it seems that the other party is about to start acting.

The mercenary on the corner moved quickly, rolling and sliding quickly on the ground, and then immediately hid in the corner of the corridor on that side. Moreover, he clearly saw Ling Yufeng's figure in the middle of the corridor here.

But alas, he no longer had a chance to warn his companions. Two daggers were stuck in his neck and in the socket of his left eye. Even though he was already fast, Ling Yufeng was faster! Just as he had just slid out, Ling Yufeng had already calculated his trajectory and speed, and the dagger moved in response to the sound and hit directly.

Immediately afterwards, the mercenary who had already seen Hades slipped to the ground with inertia, and responded with a message to his companion with facts: Be careful, there is an ambush!

There is an ambush! But how many people are on the other side? Didn't the companion in the monitoring room say that he was alone? But why was it the death caused by two daggers at the same time?

Looking at the companions who had already stormed the street on the opposite side, the remaining mercenaries had lost their due caution at this time, and became suspicious of the number of invading people.

Just when the mercenary on the opposite side was still in shock, suddenly a dark shadow appeared in the corner of the corridor, followed by the sound of a fierce fight.

"!" As another dark shadow quickly flashed in front of him, the mercenary put an end to his life with a swear word.

With the sound of a sharp blade entering the flesh, Ling Yufeng easily dealt with the mercenary in front of him with just a dagger. After roughly wiping the blood on the blade from the other party's body, Ling Yufeng inserted the dagger back into his waist.

I didn't know that there were still a few mercenaries waiting for him, but Ling Yufeng knew very well in his heart that he was going to the office next and get rid of the last surveillance, before those mercenaries realized that he was a threat.

However, what Ling Yufeng didn't know was that the two people in the office on the tenth floor at this time were not ordinary mercenaries, but top-level mercenaries.

With the destruction of the surveillance cameras along the way, most of the time, those mercenaries could barely find Ling Yufeng's whereabouts.

It didn't take long for Ling Yufeng to finally reach the corridor of the office on the tenth floor. Strangely, however, the corridor was unusually calm, with little to no abnormality.

It stands to reason that the mercenaries who are monitoring should already know about his existence, so why didn't they arrange for someone to guard the corridor on the tenth floor?

Are they really so fearless?

At this time, Ling Yufeng couldn't be allowed to think too much, he knew that the more time dragged on, the more unfavorable it would be for him.

Therefore, Ling Yufeng didn't care if there were any traps in the corridor, and rushed directly to the door of the office.

It's also strange to say, the whole corridor is so long, Ling Yufeng was still worried when he walked by, but nothing happened along the way.

Ling Yufeng couldn't care about it so much now, he gently pushed the office door.

With a "snap", the door opened.

Ling Yufeng felt strange, but even if it was the Longtan Tiger's Den, he was going to break through at this time.

So Ling Yufeng still flashed into the office, and the office was dark, which made Ling Yufeng a little difficult.

If he doesn't turn on the light, he can hardly see anything, but if he turns on the light, he will undoubtedly expose himself.

Ling Yufeng crept along the wall slowly, and suddenly his feet seemed to touch something, soft.

Ling Yufeng's heart tightened, he moved lightly with his feet, and he could clearly feel that there was a person at his feet, but this person was motionless, as if he had fainted.

Ling Yufeng slowly squatted down and probed the man's nose and breathing with his hand.

It looks like I've really fainted.

But who is this person? And why did you faint?

Ling Yufeng couldn't figure it out at all now, and he didn't have time to think about it, so he continued to move slowly inside next to the wall.

After moving a distance of about one meter, his feet seemed to have touched something soft, Ling Yufeng could feel it, it was still a person's body.

He continued to crouch down and probed the man's nose, still breathing, and it seemed that he had fainted.

In this way, the curiosity in Ling Yufeng's heart rose, he wanted to know what was going on here?

No matter what, Ling Yufeng found the switch of the light and turned on the light.

As soon as I turned on the light, the whole room suddenly lit up.

Ling Yufeng had also seen the situation of the entire room clearly at this time, and saw two men lying on the ground, and from their appearances, he could recognize that they were in the same group as those mercenaries.

But why he was lying on the ground, Ling Yufeng couldn't see it.

Immediately after that, he saw the few remaining monitoring equipment in the entire building, and after getting rid of these monitoring equipment, he could confidently and boldly dive to the 30th floor to grab the Sky Drill.

In less than ten minutes, Ling Yufeng had all the monitoring equipment done.

As soon as he finished doing this, Ling Yufeng suddenly heard a voice from the ground, and when he saw it, it was one of the mercenaries who moved, and then slowly woke up and sat up from the ground.

Ling Yufeng quickly rushed to the mercenary and punched him in the back of the head, causing the mercenary to faint again in an instant.

The mercenary had just been knocked unconscious, and the other mercenary had woken up at this time.

Ling Yufeng once again rushed to the mercenary with lightning speed, hitting him in the back of the head as well, knocking him unconscious.

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