Although the dome is on top of the underground base, it is actually still underground, watching Xie Guoping climb up the passage, Chen Xin once calculated the depth of the elevator shaft and the height of the building, and roughly estimated that this passage should be about six or seven meters underground.

Chen Xin walked alone in the escape passage and looked around, and found that there were still some traces of water seepage on the wall, but fortunately, the ground was quite dry, and there was a breeze flowing in the air, obviously an active ventilation system was installed.

Compared with Su Wan, who was protected by Xie Guoping and Poplar, Chen Xin was more worried about Xu Licheng behind him, especially when he saw that there seemed to be a figure at the bottom of the building, the haze in his heart became a little stronger.

Therefore, Chen Xin deliberately slowed down, but until he walked a few hundred meters, Chen Xin still didn't see anyone chasing after him.

"According to the speed, at least Xu Licheng should be here ......", Chen Xin felt a little anxious in his heart, and the people in front and behind him lost contact, giving him a feeling that he was out of control of the situation.

In the past, although he could not dominate the situation, as long as Xie Guoping was on his side, Chen Xin always knew that there would be people in front of him, and the situation was still under control.

"Go ahead or look back?" , Chen Xin said to himself hesitantly in his heart, his brows almost wrinkled.

Looking at the cement passage that was almost the same before and after, Chen Xin finally made up his mind to move forward, but Chen Xin did not want to catch up with Xie Guoping, but just to familiarize himself with the situation of the passage again, and make some preparations.

"If there is any accident, it is more useful to be prepared than to rush to the back to add blockage", Chen Xin was sure in his heart, his thoughts were smoothed a lot, and he immediately figured out what he should do.

With an idea in his heart, Chen Xin's speed was much faster, anyway, with Xie Guoping opening the way in front, he was completely relieved, just in a hurry. After walking a few hundred meters, Chen Xin found the first intersection.

The intersection is not a right angle, but it is still a bend, Chen Xin carefully checked the road surface around the corner, but still found nothing.

Chen Xin felt a little strange in his heart, even if the three of them acted carefully, they would not leave any traces, but it was clear that he hadn't even found half a hair along the way.

But Chen Xin already planned to use the back as a breakthrough, so he no longer cared about what happened to the three of them, but untied his backpack, opened the zipper and kept tinkering.

Chen Xin received a lot of things in the backpack, except for supplies and biological samples, the most were trap materials.

Trap materials are mainly composed of two types, one is the kill part that causes damage, and the other part is the detection part that triggers the trap. It's just that if there are so many powerful mercenaries behind him and Xu Licheng can't settle the trouble, I'm afraid the trap in Chen Xin's backpack won't be able to provide much damage.

Therefore, Chen Xin mainly spent his energy on arranging detection devices.

I don't know how long it was, Chen Xin finally heard a sound in the distance, and immediately put down some of the traps that had not been arranged, put away the lighting rod, and instead lifted the 98k that had been hanging on his body.

Without the light of the lighting rod, the entire passage turned into a pitch black, and Chen Xin couldn't even see the nearby cement wall clearly, but it didn't affect Chen Xin's aim.

According to the memory that still existed just now, Chen Xin's gaze had already aimed at the passage in the distance, as long as there was any movement, it could be observed by Chen Xin.

"It would be nice if there were two more bullets", Chen Xin attached the eight-fold mirror, and thought with a little regret in his heart, this kind of terrain is simply the best battlefield for high-powered sniper rifles, the passage is long and narrow, and there is no inexplicable crosswind, as long as the enemy appears, there is no place to dodge after the bullet is discharged.

"Sure enough", Chen Xin's eyes narrowed, his muscles couldn't help but tighten, and his attention was highly concentrated again.

The footsteps were very soft, but they connected the city, causing Chen Xin to frown again, "What the hell is going on?!" ”

Chen Xin became more and more puzzled, he couldn't guess what was happening behind him, if there was really a strong enemy around, the footsteps should always be more urgent, not to mention the sound of hurried footsteps, it was the sound of gunshots, and he didn't hear a single sound along the way!

Chen Xin suddenly wondered if he was too careful, and the group of guys behind him were just waiting for everyone to act together.

"Why don't you use a light stick?" , Chen Xin's heart was full of doubts, he originally planned to use the light around the person to observe, but he didn't know why, so many people actually didn't use the lighting stick.

Since there was no light, the eightfold mirror lost its effect, Chen Xin quietly changed into a pistol, and even pinched the dagger in his other hand.

The footsteps were getting closer and closer, and Chen Xin's hand holding the dagger was a little harder, and if he got closer, he could hear the sound of the bone joints.

Suddenly, there was a crisp sound from the side of the footsteps, "Da Da", followed by another burst of gunshots.

Chen Xin's eyes widened, staring closely at the bullets and the flames, which was one of the traps he had just laid out.

This was originally just a trigger trap set by Chen Xin, thinking that he could lay a foreshadowing in the melee, but thinking that the moment he fired could provide a line of sight, Chen Xin immediately triggered the mechanism.

Just in an instant, Chen Xin saw clearly the people coming from the opposite side with the help of this firelight, and they were really the people who didn't come, and none of them fell, all of them stood there neatly.

Chen Xin immediately took out the lighting stick again and threw it over, "Why are you so late?" ”

“...... We're afraid that there will be a situation ahead, so we will make an appointment to gather and come back," Harris shouted as he stood still, and the roar echoed faintly in the passageway.

"Okay", Chen Xin was speechless for a while, he didn't expect it to be such a simple reason.

Suddenly, Chen Xin seemed to think of something, and the muscles that had been relaxed tightened again, and his body rolled backwards as soon as he was short.

"Da da da", the bullet densely exploded sparks in the position where Chen Xin was originally standing, illuminating a passage, and Harris, who shot the bullet, had a hideous expression.

Chen Xin leaned against the wall in the corner, feeling the heartbeat in his chest, gasping for breath, and the dagger stuffed back into his boots was also pinched in Chen Xin's hand again.

Just a moment before Harris opened fire, Chen Xin finally noticed that something was abnormal. He didn't dare to say anything else, if the people who followed him had a new agreement, Xu Licheng would definitely contact him first, even if it was through an unknown "source" to communicate.

But Xu Licheng actually stood in the crowd without moving, and the person who replied strangely became Harris!

When will Harris be able to speak on behalf of everyone left? Not to mention that Xu Licheng is already a second-order awakened person, even Li Chuan used to be an official "undercover agent" of the Titan Company, so it is not Harris's turn to talk back to him.

Chen Xin thought about it again, and it seemed that Harris was the only one who wore the Titan Corporation's Level 3 mercenary on his shoulder, which was a little higher than the Level 2 of the lone wolf, "Is it because of this?" ”

Chen Xin guessed wildly, and after taking another breath, he immediately closed his eyes and tried to activate the "source" in his body.

"Huh?" , Chen Xin opened his eyes, and suddenly found that the "source" on Xu Licheng's body seemed to have entered a dormant state.

This abnormal situation surprised Chen Xin very much, after the "source" entered Xu Licheng's body, it had actually replaced part of Xu Licheng's brain stem and brain functions. As long as the "source" loses its activity, it is basically impossible for Xu Licheng to be able to obtain it, and if the "source" enters a dormant state, according to biological common sense, it is impossible to have the ability to act!

But Chen Xin clearly saw that Xu Licheng was standing in the crowd just now!

The sound of footsteps came again, and the cold hairs on the back of Chen Xin's head stood up, "The situation is really out of control." ”

But Chen Xin also knew that the more flustered he was, the easier it was to make mistakes, and after taking a deep breath, he calmed down again, trying to wake up the "source" in Xu Licheng's body.

Chen Xin followed the connection between the "source", and his consciousness continued to play with Xu Licheng's consciousness, and the swing of consciousness became bigger and bigger, and after two or three seconds, Chen Xin found that the "source" at the other end seemed to tremble.

"There's a door!" , Chen Xin's heart was shocked, knowing that the source in Xu Licheng's body was about to wake up, and his tense mood finally relaxed a little.

"Chen Xin?" , Xu Licheng's voice finally sounded in Chen Xin's head, but it sounded a little half-asleep, as if he was suddenly called up in his sleep.

"Where's you?" , Chen Xin was happy in his heart, as long as Xu Licheng did not die, there was still room for redemption, even if he returned to the base to save him, he could give it a try.

"Me? ...... I seem to be walking? Xu Licheng's voice was a little confused and uncertain, as if he didn't know where he was, "It's dark around, like a cement underpass." ”

Hearing Xu Licheng's answer, Chen Xin chuckled in his heart, in fact, until just now, he didn't believe that the group of people who were walking towards him not far away was real, but according to Xu Licheng's description, he was clearly standing in it!

"This ......", Chen Xin's brain spun rapidly, trying to straighten out everything that had just happened.

"After climbing up the passage by himself, the rest of the people, including Xu Licheng, waited at the entrance of the passage for a long time, until they gathered people to move forward together, and this group of people was obviously controlled to varying degrees mentally, at least Xu Licheng was unconscious, and his body acted on its own", Chen Xin briefly summarized in his mind, and finally figured out the biggest possibility, the rest of the people may have been controlled by unknown beings in their minds!

Suddenly, Chen Xin thought of the figure he saw on the rope, "Did you meet anyone just now?" ”

“...... Eight Athletes? Xu Licheng wasn't quite sure if this pronunciation was correct, but if he wasn't mistaken, before he lost consciousness, it seemed that a figure suddenly appeared on the rooftop and claimed to be the "Eight Warriors"!