After forming a tightly guarded formation, a large group of zombies with strange appearances began to press towards the control room where Chen He was located. Pen Fun Pavilion wWw. ｂiquge。 ｉｎfo

Their movements seem to be under unified command, and their movements between advance and retreat are tightly knit, leaving no flaws.

In this case, Chen He wants to escape, and it is no wonder that he will ascend to the sky.

Surprisingly, the zombies rushed into the control room, only to find that the room was empty.

Chen He disappeared from the closed control room under the noses of a large group of zombies, which was obviously unreasonable.

The zombies that had not yet reacted were hit hard by a loud bang.

The explosives carried by Chen He were in the secret room, and their power was multiplied, and many zombies were instantly turned into powder.

Before the smoke cleared, a figure fell heavily from the ceiling, it was Chen He, who was almost unconscious.

Chen He had been hiding in the exhaust tunnel in the corner of the ceiling, and although he had the Purple Cloud Armor Body, he was still injured by the huge explosion impact.

After landing, he tried his best to get up from the ruins, but the Ziyun battle armor was badly damaged, and he didn't listen to the call of the bones.

At this moment, in the smoke at the door of the control room, several more zombie figures flashed again.

Unexpectedly, such a violent explosion still failed to completely annihilate these zombies, and by this time they had been completely enraged.

The angry zombie let out a terrifying roar from its mouth, scurrying hard under the thick fog, and the next moment it was about to tear Chen He to pieces.

Chen He no longer has the strength to fight back, but he will never sit still.

Thump!

Chen He's body rolled on the ground several times, and then fell into a cold and biting pool.

It turned out that the explosion just now not only destroyed the entire control room, but also blew through the floor of the control room, and the drainage channel below was exposed.

Chen He was stimulated by the biting cold water, and immediately regained his mobility, quickly sneaking under the drainage channel, and at the same time pulled out a diving mask from behind him and put it on his face.

The explorer's special diving mask can continue to supply air underwater for several hours, which also brings Chen He valuable escape time.

But not far behind him, through the searchlight, you can see that four zombies are still struggling.

These zombies don't know where they come from, and they obviously need to breathe oxygen, but they need much less than normal people.

After Chen He struggled to swim for about 500 meters, two of the zombies behind him had reached their sneaking limit and were the first to turn back and leave.

The remaining two zombies were tireless, following closely behind, but they couldn't get any closer.

However, at this moment, another danger is looming.

The temperature of the groundwater, which has been sealed for many years in the drainage channel, is constantly at 4 degrees Celsius, and Chen He's body temperature is rapidly decreasing.

He began to feel numb in his limbs, had to slow down, and even began to feel the water disturbing as the zombies behind him advanced.

At this life-and-death juncture, Chen He still did not give up.

Although he couldn't perform the two-ball technique underwater, he successfully mobilized a trace of desolate energy.

The operation of the desolate qi caused Chen He's speed to increase slightly, and the zombies behind him distanced himself again, making it difficult for one of them to turn back.

The only zombie left is the most powerful.

Chen He's speed, although it had improved with the help of the desolate qi, still couldn't get rid of its entanglement.

The piercing cold is like ten thousand ants devouring his heart, slowly consuming his physical strength.

After a few breaths, the zombie slowly approached again, and by the dim light of the searchlight, Chen He saw a hideous face on the other party's face.

At this time, the cooling of his body was extending from the surface of his body to the core, and his heartbeat was slowing down rapidly.

The lack of blood supply made Chen He confused, and the desolate qi began to dissipate, and his swimming speed slowed down even more.

The zombie behind him had quietly raised its arms, and its long nails burst out of its fingertips, turning into two huge scissor hands with incredible power.

Chen He looked back hopelessly as the scissor hand struck at his neck, but he couldn't make any resistance, so he could only let the other party slaughter him.

Doodle!

At the moment of life and death, the severely damaged Purple Cloud Battle Armor finally completed self-repair and began to exert its powerful power again.

Chen He's already desperate face showed a frightening smile.

Creak!

The scissor hands that were waving in the water had been grabbed by Chen He's Ziyun battle armor's blessed hands, and then they were twisted off with their wrists.

Without waiting for the zombie to reflexively retreat and escape, Chen He grabbed its two shriveled arms and pulled them up, pulling them off like crab claws.

The zombie who lost his arm desperately kicked at Chen He with his legs.

It's just that he moved slowly underwater, and his legs were easily grabbed by Chen He, and then he was also pulled by his arms.

This time, although the zombie's legs were not pulled out, they completely lost their effect and drooped powerlessly in the water.

In the end, the zombie was left with a shriveled mouth and tried to threaten Chen He.

Chen He wanted to step forward and completely deal with the zombie, but suddenly remembered the thing that came out of the head of the bulging zombie when he was dying, so he turned around and left it to fend for itself.

After completely getting rid of the zombie entanglement, Chen He quickly took out a diving suit from his equipment backpack and put it on the outside of the Ziyun battle armor, and his declining body temperature was finally resolved.

After a long row in a panic just now, he was far away from the exit of the control room.

Fortunately, the waterway is not complicated, it is just a separate drainage channel, and it is not difficult to return.

It's just that the three zombies who turned back earlier must be waiting at the exit, and it is not wise to go back the same way.

Chen He once again estimated the remaining air supply time of the mask, began to relax a little, and decided to continue to explore ahead.

In the dim passage, he advanced for a long time, but found no other exit.

Chen He began to feel the strong water pressure on his body, and it seemed that he had come to a deep position under the ground.

So he decided to return there, leaving precious gas time behind and the zombies guarding the exit.

However, at this moment, Chen He felt a stream of water passing by beside him.

At first, he thought it was an illusion, but after several confirmations, it was finally determined that there was indeed an undercurrent in the channel.

This made Chen He a little confused, the passage was not high, and there was no fork in the road. He hadn't felt the undercurrent before, it seemed to have appeared suddenly in the blink of an eye.

And as time goes by, the undercurrent is rapidly increasing.

Chen He stopped to carefully observe the cave wall of the passage, and found that there were many fist-sized holes on the seemingly integrated cave wall.

It is from these cavities that the growing undercurrents flow out of these cavities and converge into a single stream.

It was difficult for Chen He to judge the effect of these hollows for a while, and when he thought about it, the entire drainage channel seemed very strange.

Although Chen He had not studied architecture, he could guess that the drainage channels of the subway should be integrated into the unified drainage system of the city.

And his estimate of the depth of physical stress far exceeds the limits of the city's drainage system.

This made him a little worried, and he didn't plan to continue exploring the passage ahead with the undercurrent.

Chen He quickly turned back and prepared to swim back in the direction he came.

But then he realized that the underwater passage not far in front of him had been sealed by a huge stone door.

The undercurrent just now was actually caused by opening the drain valve when the stone door was closed and discharging the volume liquid from the cavity.

Just when Chen He was busy checking the undercurrent, he didn't know that he had wasted the most precious opportunity to escape.

The stone gate in front of him was extremely thick, and Chen He hit it with an alloy covered fist, which could not even produce a trace of vibration, let alone destroy it.

The sudden change forced Chen He into a desperate situation, and he no longer had the calmness of Fang Cai.

He had to carefully inspect the cave walls around the stone door again, but found no hidden mechanism.

The stone gate that was opened in a primitive way is even more unlikely to apply quantum teleportation technology, and it seems that the retreat has been completely sealed.

There was only one option left, and that was to continue underground along the passage.

The pressure on his body was getting bigger and bigger, and although he was protected by Ziyun armor, it still made people feel suffocated.

Something even worse followed.

Not far in front of Chen He, a three-way fork appeared on the wall of the cave illuminated by the searchlight rays.

This was the first fork in the road that Chen He had encountered since he entered the passage, but there was a time when the air supply of the mask had almost reached the limit.

At this time, the huge water pressure has also reached the limit of what human beings can bear.

Chen He hurriedly swam to the front of the three forks to take a closer look, and found that the passage ahead was small and almost identical in shape, and he could not determine which one was the exit.

However, in the current situation, there is no chance of trial and error, and there is not much time left for the mask to supply air.

Chen He, who was in a dilemma, was about to use the child's point point stunt, but found that deep in the middle of the hole, a slender black shadow was quickly approaching him.

Double-headed cobra!

Chen He felt both surprised and happy, it was really touching that he could meet a strange old acquaintance when he was in a desperate situation.

The two-headed cobra can't speak, so there's no way to know why it's here. However, it had already been psychic, and seeing Chen He was like seeing an old acquaintance, and it quickly approached.

The two-headed cobra retracted deftly not far in front of Chen He and slowly swam towards the cave where it came.

Chen He immediately understood its intentions, and followed closely behind the two-headed cobra, heading towards the depths of the middle cave.

At first, he was a little worried about the increasing water pressure, but soon noticed a noticeable change in the angle inside the channel.

The water pressure on the body begins to slowly decrease, and it slowly enters a tolerable state.

What's even more surprising is that above the cave wall of the closed passage, several bubble spaces that have not been filled with water have appeared one after another.

The air in the space should have been sequestered by water when it was originally built.

After Chen He carefully made sure that the gas was not poisonous, he dived out of the water and let the charcoal sieve inside the mask reabsorb the oxygen.

As a result, the time for underwater gas supply has been greatly improved.

The two-headed cobra in front of him was still swimming slowly, looking back at Chen He from time to time, flashing his eyes with a hint of surprise.

And Chen He was also excited at this time, because he knew that there would definitely be a surprise in front of the cave, and it might even be the exit to leave.

It's been half a day since he entered the underground tunnel, and he's still trapped in the dark water, and he really can't wait to leave.

At this time, a faint light began to appear in the cavern's stagnant water, and searchlights were no longer needed.

Chen He followed the two-headed cobra and couldn't help but speed up his swimming, as if the surprise was just around the corner.