The entire fourth underground layer is densely distributed like a huge spider web. On all sides were identical glass labs, with people in the same white hazmat suits walking around inside.

When ordinary people come here, it is estimated that they will not be able to find the north at all.

Fortunately, Qin Jun found such a "female internal ying" to save the trouble of getting lost, this "female internal ying" seemed to be very familiar with this place, and took Qin Jun to go deep inward.

Soon they came to a large hall that was much like the room in front of them, with rows of glassware slots.

The difference is that there is no liquid in the glassware, but a thick layer of sand on the bottom of the sand, and on the sand there are dense clumps of black insects, crawling back and forth to gnaw on the meat of unknown animals that have just been put in.

These black insects are the size of a thumb nail, the whole body is as black as carbon, the back is a hard back shell, the abdomen has many feet, when they eat, sometimes get into the meat pieces, sometimes with blood and water out of the body, people can't help but look a little scalp numb, especially the dense insects layer by layer, if there is a dense phobia standing here, it is estimated that you will faint on the spot.

Except for five or six glassware containing such small black worms, many more containers contained snakes of different colors.

As far as the eye can see, there are hundreds of tightly intertwined snakes wriggling in the glassware of about thirty or forty square meters. In the pile of snakes, there are still several rounds of human corpses that have been dead for a long time, each corpse is entangled with watching snakes crawling, some snakes even lay eggs in the skin of the corpse, and the hatched small young snakes twist their soft bodies, desperately burrowing into the corpse's mouth and nose and already empty eye sockets. This scene is indeed disgusting.

Rao is a well-informed Qin Jun, just by glancing at these things, he felt that his stomach was overturned.

"The first time I saw these things, I threw up for a week." The female researcher walking in front of Qin Jun seemed to understand Qin Jun's mood very well at this time.

"What are you doing with these things?" Qin Jun's scalp was numb.

"Oh! I forgot to introduce myself, my name is Jane. Lucy, most people call me Dr. Jane, you can just call me Lucy. "These reptilian insects are not my area of responsibility, but I have heard that these insects have some special ability to control certain human behaviors. ”

"Insects control human behavior. Are you crazy? Qin Jun twitched the corner of his eye, even if he hadn't learned much advanced biological theory, he knew that human behavior was regulated by his own brain and nerves.

"I used to think the same thing, but then when I saw those horrible things, I believed it." The female researcher who called herself Lucy smiled bitterly.

Lucy was about to say something, when the two walked around a corner and entered a long glass walkway.

At the end of the walkway, two guards in white hazmat suits and submachine guns stood in front of a metal door. They seemed to sense the arrival of the two men, and raised their guns, alert.

"Behind this door, that's where you're looking, but the two guys in front of you are holding real guns. Without the guidance of high-level researchers, even I would not be able to enter and exit the metal door in front of me at will. Previously, some researchers broke into the area by mistake and were shot dead on the spot, and their bodies were thrown directly into the insect utensils we just saw. About ten meters away from the two guards, Lucy suddenly stopped and turned back to remind kindly.

"Since you're here, there's no reason not to go in and have a look." Qin Jun sneered, passed by Luxi, and walked in the direction of the two guards.

Seeing someone approaching, the two guards directly stretched out their palms and made a stop gesture.

Qin Jun shook his head and continued to walk forward.

Seeing that the other party did not listen, the two guards simply pulled the bolt.

At this time, Qin Jun hurriedly waved his hand at the other party, stopped, and then immediately turned around.

Seeing this, the two guards put down their guns again.

However, Qin Jun, who turned around, did not take a step back, but made accurate calculations and estimates in his mind. The heights of the two guards and the directions they were standing, as well as the straight-line distance between him and the two, these data were quickly calculated in Qin Jun's mind.

A second later, Qin Jun suddenly spread out his palm, and at this time, two more daggers with cold light appeared in his hands at some point.

Qin Jun turned around suddenly, and almost at the same time, his right hand shook violently.

Whoosh -

Two extremely sharp daggers turned into two piercing cold rays, and plunged into the throats of the two guards with unmistakable accuracy.

The reason why Qin Jun chose a throwing knife instead of a pistol with a silencer was because this aisle was relatively quiet, and even if there was a silencer, the sound of the pistol would cause a lot of echoes, which would cause unnecessary trouble.

Under Qin Jun's perverted knife technique, the two guards didn't even see each other's movements clearly, and they were already deeply stabbed into the throat by the flying knife.

One of them snorted and fell straight to the ground. The other took two small steps back, holding his throat with one hand and squeezing the trigger of the submachine gun around his neck with the other.

At the moment when the man was about to pull the trigger and let out a gunshot.

Whoosh -

Another dagger roared and pierced into the joint of the man's elbow with unmistakable accuracy, which is where we often call the "pockmarked point". As soon as the stab is stabbed, the whole arm will be numb as if it were electrocuted, and the fingers will temporarily lose the force to pull the trigger.

At the same time that the dagger hit the target, Qin Jun had already swooped down, and he quickly threw the person who refused to fall to the ground, so that even if there was glass all around, it would be difficult for others to notice the situation on the ground here.

Click.

The other party's hand was still tightly holding the trigger, and Qin Jun simply twisted off this person's arm.

The guards glared at the approaching enemy, and tried to open their mouths wide to scream, but they couldn't scream with a dagger stuck in their throats.

Qin Jun frowned slightly, he didn't expect this person's willpower to be so tenacious. He clasped the other party's head with both hands, and suddenly exerted force, and after a click, he twisted the opponent's cervical vertebrae.

Eventually, the guard collapsed to the ground with a look of unwillingness and anger, his eyes wide open.

Qin Jun bent down and threw the two guards' corpses aside, then carried the opponent's submachine gun and hung it on himself in the same way as the other party, the white protective suit only had his eyes exposed, at first glance, it looked like a guard here.

"Let's go!" Qin Jun pointed to the metal door behind him.

Lucy was stunned for a long time before taking a few steps forward.