There weren't many messy marks around the bloodstains, indicating that there wasn't a fierce fight, but it also showed that those people didn't have much power to resist the attack.

Schutte made a gesture, vigilant, covered, and moved over to the rescue.

Cillin squatted against the wall, took out a small box, and scraped off a layer of soil from the wall. The team members didn't pay attention to Xilin's movements when they saw them, but just looked around vigilantly. After all, Xilin had done this before, and everyone thought that Xilin was sampling.

In fact, what a few people didn't know was that the real purpose of Xilin was not to take samples, but to use this as a cover, pulling his fingers out of the gloves and touching the cave wall and bottom at an angle that no one noticed, and analyzing the subtle traces in it. The highest-end instrument is not as convenient as the chip in Xilin's body, and the moment it is touched, the information fed back from his finger lets Xilin know what kind of black rat it was that attacked the operatives here before.

It's not the same! It's not the same as the burrowing black rats that I've been exposed to before! It's even stronger!

Cillin wasn't sure how strong it was, but he had a feeling that those people had encountered the leader of this group of black rats before, that is, the mutant black rat that had escaped from the base in the first place.

When Shute found the team member who was calling for help, the team member was already in a deep coma, and under the light of the light tube, everyone could clearly see that one of the team's legs had been bitten off, and there were blood stains all over his body. The medical officer in charge of the team came to help him stop the bleeding, but before he could finish dressing, the man died.

"I'm going to kill those animals!" One of the team members was red-eyed and punched the cave wall in grief and indignation.

The expressions of the others were similar.

Schutte took a deep breath and said, "They are demonstrating, and they could have eliminated everyone without a word, but they left one seriously injured." ”

"There is too much blood loss, and the rat venom has invaded the internal organs," the medical officer picked up two empty tubes, "Both tubes of serum antibodies have been injected, and there is no effect." This rat venom is too overbearing. ”

"Captain, there's no signal from the communicator!" One of the team members suddenly shouted. Originally, he wanted to contact the reserve team and report the current situation at the same time, but he didn't expect that there was no signal at all.

Each group carries a signal receiver when they come in, and every time they reach a certain distance through the place, they will install a receiver on the wall or roof of the cave and cover it up. The signal was quite strong just now, but now there is no signal at all, what the hell is going on?!

Cillin thought in his heart, their wisdom, no, it should be said, its wisdom, far beyond people's expectations. If each group has done their job well, and the signal receiver has been installed and disguised, and there is still no signal, either the receiver itself is broken, or the black rat leader has dismantled the receivers. The former is unlikely, the latter is highly likely.

It sounds unbelievable, and it is estimated that not many people believe that the signal receiver that has been disguised will be dismantled? And all of them were demolished so completely? Is this a rat or a human?

Xilin has never underestimated the leader of the black rat from the beginning, and the more information he comes into contact with, the more Xilin has a feeling that this black rat is very powerful, both in terms of mind and combat effectiveness. Moreover, Cillin gradually found the frequency of that sound.

Schutt thought for a moment, took out the sound wave detector and pressed it, the reason why he didn't use it before was because it was very likely that the black rat would know their location at the same time as the sound wave detection. But now, Schutt can't do that much, he always feels that something is wrong.

Looking at the picture displayed on the detector, Shute's face changed suddenly, "Get out of here quickly!" ”

Everyone didn't take a few steps, the cave wall and the roof of the cave were drilled through, and the black rats rushed over one by one, and these black rats appeared in a coincidental position, just separating Xilin from another group member and the other eight people in the group. Due to the increasing number of black rats, even if Schutte wanted to go to the rescue, there was no way. The distance between the two sides was pushed farther and farther away by the black rat, and the gunfire was non-stop, but this big black rat was not as easy to deal with as the previous little black rat, and it was full of oppression.

Cillin and the other team quickly retreated to the other end of the hole, and the guns in their hands did not stop. However, fortunately, the number of black rats that appeared was not too much, and after the two of them retreated and fought for more than ten minutes, no black rats chased after them. The two stayed in another cave, having lost contact with the other eight members of the group, and had not met any of the other group members. In the quiet of the cave, only the breathing of the two could be heard.

"Looks like it's safe for now." The man laughed.

"yes......" Cillin smiled as well.

Burst!

A bloody arrow erupted from the side of the man's neck.

The man's eyes were full of disbelief, he really didn't expect Xilin's shot to be so fast!! How can an average person be defensive against his teammates in such a situation?!

When the person says "safe for the time being", most people will breathe a sigh of relief and relax their tension, let alone when their teammates are nearby. However, as soon as the man's knife was taken out, the carotid artery was cut by Xilin, and due to the vigorous rodent extermination campaign, the blood flow was fast, and it was not long before he lost his breath due to excessive blood loss.

Cillin played with the rat claw in his hand, looked at the person who fell to the ground, and made a few inaudible sounds from his mouth, which was the first time that Cillin used it after decoding the sound frequency of the black rat leader. From the moment he entered this network of caverns deep underground, Cillin had been searching for the sound and decoding it.

Without staying any longer, Sirin left the place, and in less than a minute a few black rats would come and eat the group. In this case, alone, Xilin can better solve the threats hidden in the mobile troops.

From the time he entered Qiyao to the present, Xilin has never ignored those potential killing opportunities. Whether it was a student, a researcher, or a soldier, Xilin never let his guard down. It's funny that those of Affran's opponents actually put their hands into the army, and they deserve to be Afflan's opponents.

At that time, when everyone had just come down from the armed aircraft to shoot those black rats, Xilin's performance was very eye-catching, but no one would have thought that at that time, Xilin was still distracted to observe the subtle changes of each team member, and from these subtle changes, Xilin guessed the potential killing opportunity. In a series of events that followed, Cillin was confirmed. In fact, before those black rats separated them from the other eight people in the group, Xilin deliberately slowed down a little, and that person obviously also had the idea of finding a chance to kill Xilin, the two were at the end of the team, the position of the black rat was calculated by Xilin, Xilin's speed and the distance from the eight people in front of him were calculated, and the black rat separated the two from the other eight people, which seemed to be a coincidence, but in fact, they were all in Xilin's prediction.

Xilin doesn't need a sound wave detector to detect the sound waves coming from the cave wall, and ordinary people can't feel them at all. Xilin is like a multi-functional precision instrument, analyzing the surrounding information all the time. He knew that the arrival of the black rat was not accidental, but the result of the command of the leader of the black rat.

Just like a humanoid detector, Xilin knows the surrounding movements well, which group and how many people have just passed through which hole, how many black rats are active in which hole nearby, etc., all of which knows, which also allows Xilin to avoid a lot of trouble.

Looking at the buckle of the backpack, Xilin raised the corners of his mouth slightly, and the next one will appear soon.

In front of him was the corner of a hole, and Xilin walked slowly over, and when he was about to reach the inflection point, the rat claw in his hand was sent out with lightning speed.

Burst!

Around the corner, a man in a combat uniform had a hole in his throat and was nailed directly to the wall of the cave, his eyes were also full of disbelief, and the gun in his hand fell, which was originally intended to shoot Xilin.

The flight trajectory of the rat's claw is arc-shaped! What's more, in such an environment as the cave, the shot is so accurate! This was something that the man had not anticipated.

Cillin pulled out his claws, making the same sound as before, which was indiscernible to the human ear.

In the following period, Cillin solved three more people.

There is a miniature tracker at the buckle strap of the Cillin backpack. This was installed inside before the equipment was issued, and it was specially issued to Xilin. It can be seen that they have long been prepared to find an opportunity to kill Xilin here. But they didn't know that Sirin had already detected the hands and feet made on it when he got his hands and feet.

The so-called will be calculated, and that's it.

After walking in the cave network for so long, Xilin has clearly felt the decrease in the number of black rats. Due to the timely provision of blood samples and related data materials by Xilin, the operators were fully prepared, reducing casualties and improving efficiency.

As he walked, Cillin suddenly paused and turned around.

In the darkness, at the other end of the cave, a large black rat of nearly three meters stood there, its red eyes radiating blood-colored light in the darkness.

"You finally showed up, I thought you'd be avoiding me all the time." Xilin said with a smile in his tone, "I want that thing inside you." ”