Leng Xuan went up the stairs all the way, listening in all directions and looking around. Fortunately, there were no surveillance cameras installed in the stairwell, and after his keen hearing, he found that the first and second floors were empty, without any sound. When he reached the third floor, he suddenly heard the sound of the door, so he hurriedly retreated a few steps, leaning against the wall to avoid being seen.

With his super ear power, Leng Xuan could hear the footsteps of only one person at the entrance of the corridor on the third floor. Immediately after, the crisp sound of a lighter was heard. At the same time, there is also the electronic sound of the mobile phone buttons. After the man talked nonsense with the person on the phone for a long time, he estimated that he had run out of cigarettes, so he hung up the phone and walked out of the hallway.

Leng Xuan waited for a while, and when he saw that no one came out again, he began to walk cautiously towards Lu Shang. When he reached the entrance of the corridor on the third floor, he opened a gap in the door of the safe passage and cast his eyes inside. Leng Xuan saw that there was actually a hall made of transparent glass inside. In the center of the hall, there is a raised circular stage with several steel pipes on it, and two seductive women are performing a striptease. Around the perimeter of the stage, there were many spectators, one by one, reaching out their hands, trying to grab a handful of the stripper's plump body. There were also a few people with thick bills in their hands, shaking them from time to time, apparently trying to exchange them for a night's service.

Maybe it's because this transparent glass also has a good sound insulation effect, so Leng Xuan can't hear any sound. Shaking his head secretly, he looked away again, and at this moment a few people entered the hall, they found a seat and sat in a group, and then beckoned the waiter to come, and without knowing what to say, the waiter left. It wasn't long before the waiter came over with a plate and placed the contents on the table.

Leng Xuan's eyesight was good, and he quickly recognized those things as heroin and marijuana, as well as suction tubes. He was immediately shocked, he didn't expect that there were still drugs here, and they were sold in this way of ordering, and it was estimated that there must be a lot of types and quantities of drugs stored here.

Leng Xuan looked at the process of openly buying and selling drugs, and couldn't help but secretly smack his tongue, for this crime alone, Li Cheng would be shot at least several times. And it's only the third floor, and there are two floors above, and I don't know what kind of dirty business Lu Dao is doing.

Retracting his gaze, Leng Xuan walked upstairs again. This time, though, he wasn't so lucky. Security on the fourth floor is obviously much stricter, and even outside the safe passage, there are special guards. And the waist bulged, apparently equipped with a pistol.

Leng Xuan suddenly had a headache, the security guard stood on the way of the stairs, no matter what method he used, he would be discovered by the other party. After pondering for a moment, his heart was fierce. Anyway, it's already here, and it's absolutely impossible for me to back down. In that case, the only way to solve the problem is to use force.

He was calm, and when the security guard turned his gaze away, his body moved violently, as fast as lightning, and rushed towards the security guard, his hand like a sharp knife, and slashed at the security guard's neck. Suddenly, the security guard's eyes went black and his body fell backwards. Leng Xuan hurriedly caught his body to avoid making a sound when he fell to the ground, and then carefully dragged him to a slightly hidden place.