"Bang~"

The door that had been in disrepair fell to the ground after being lightly touched by Han Yu. The dust stirred up forced Han Yu and Ning Ping to retreat. Ning Ping waved his hands to disperse the dust in front of his eyes and complained to Han Yu: "Han

Yu, why are you using so much force?"

"I didn't use any strength? The door is not strong on its own." Han Yu explained with a depressed look on his face.

…

When the dust settled, Ning Ping walked into the underground research institute first. This research institute has five floors in total and is about fifteen meters high. There are no signs of damage to the outer walls, and there is no huge damage to the main building caused by external forces.

, it can be judged that there has been no external invasion here. The only danger can only come from within the institute.

Perhaps because few of the research institutes they had seen before were good, Han Yu and Ning Ping were both on high alert, guarding against monsters that might suddenly jump out and attack them.

…

There was no danger. Until Han Yu and Ning Ping checked the first floor of the research institute, they did not find any monsters. But now Han Yu and Ning Ping faced a choice, either they could check up together.

Either follow the entrance to the newly discovered basement and enter the underground of the institute. As for splitting up, this proposal was unanimously opposed by everyone in the Spirit as soon as it was proposed.

Without reliable evidence, Han Yu and Ning Ping gave up the right to choose to fate and threw away their shoes. Anyway, for Han Yu and Ning Ping, it was the same wherever they went. They always wanted to give this research institute a thorough

After searching, even if there is a monster, they will encounter it sooner or later. By throwing shoes, Han Yu and Ning Ping decided to go upstairs. As for the basement, we will talk about it after they come back from upstairs.

There were no discoveries on the second floor, no discoveries on the third floor, and there were still no valuable discoveries on the fourth floor. Only the fifth floor was left. If there were no discoveries on this floor, then Han Yu and Ning Ping could only hope for the best.

It was placed in the basement on the first floor of the research institute. When they opened the only door on the fifth floor, Han Yu and Ning Ping were immediately startled by the scene in the room. In a room as spacious as an exhibition hall,

There are human beings made of crystals. The lifelike expressions of those crystals are just like living people. Those crystal humans have different shapes and uniform clothes. They should all be staff of this research institute. And judging from their respective postures

It can be judged that some of them are observing the research process, some are discussing the experimental results, and some are distracted and don't know what they are thinking.

Walking in a room that looked like a wax museum, Han Yu couldn't help but frown. These crystals were valuable. Han Yu believed that these researchers would not make statues of themselves when they were full. The reason for doing this must be

What was the purpose? Ning Ping followed Han Yu closely, looking around, as if he was afraid that these crystal figures would suddenly move. But think about it. In this underground, he suddenly found a group of lifelike crystal figures of different shapes.

, it’s so weird that it’s hard to avoid making people think wildly.

"Hmm..." A light cough and a sudden sound interrupted Han Yu's thinking. At the same time, Ning Ping suddenly raised the Crescent Sword. Seeing this, Han Yu comforted Ning Ping and said: "Don't be so suspicious.

You are like this. You are afraid of ghosts." As soon as he finished speaking, the coughing sound came again, "Welcome to the sanctuary, I don't know who you are? Maybe it's a human, maybe it's a monster, or something.

Maybe they are visitors from the outside world. Please listen carefully to what I say and help us fulfill our last wish."

Han Yu and Ning Ping looked at each other and became quiet. Not only Han Yu and Ning Ping became quiet, but Han Mengxin and others in the Courage also became quiet. The voice continued: "This is the last refuge of mankind.

, mankind has reached a critical moment of life and death. If the Noah plan cannot be implemented, mankind will eventually face destruction."

"Fifteen hundred years ago, the human society living on this planet has developed to a highly civilized stage. Whether it is economy, population or force, human beings have reached the peak state in history. The next step for human beings

His plan is to leave the planet and explore the vast universe. But before taking this step, some people raised objections, thinking that although humans have powerful tools, they themselves are still very weak, and they are worried that they will interact with alien life forms.

We were at a disadvantage during the war. At that time, this view was generally recognized. Human beings are like this, always hoping for perfection. In order to gain the upper hand when contacting extraterrestrial life in the future, a study that affects all mankind was launched. In order to complete this

Research, the entire planet has gathered all outstanding scientific researchers, gathered together to conduct research on improving human beings. And finally the hard work paid off, after a hundred years of research, these researchers have achieved research results."

Hearing this, Han Yu frowned. From these words, there was not a word about divine punishment. Instead, he mentioned research, research, research on what? Could it be the research on human evolution? This star

Was the planet so awesome back then? Even in modern times, it is very difficult to improve human beings' inherent physique.

Just listen to the voice continue: "No one would have thought that the research result of the best people in all mankind not only failed to meet the expectations of the manufacturer, but also became the beginning of the destruction of all mankind. That day, the entire

The humans on the planet all walked out of their homes, looked up and waited to witness the moment when the miracle happened. But no one thought that the miracle did not come, only disaster fell from the sky. Almost overnight

Over time, the whole world has undergone earth-shaking changes. Since the application scope of this achievement is the whole world, the whole world became ruins that night. After that night, there were very few human survivors. Originally, there were seven human beings in the whole world.

It was a billion, but after that night, seven billion suddenly shrunk to 70,000, and many human beings were completely vaporized without even having a chance to become crosses."

"Humanity has encountered an unprecedented catastrophe. But what makes the remaining humans feel despair is that that night is just the beginning. In the next month, the entire planet is suffering from the impact of the research results, and the human living environment is in

Gradually deteriorating. The grasslands turned into deserts, the green hills turned into barren slopes. The originally blue sea turned into

As red as blood. The animals living around humans are also undergoing earth-shaking changes. The docile ones have become vicious, and the originally vicious ones have become more vicious. Human beings who have lost a lot of tools are no match for those monsters that have become invulnerable.

, we had no choice but to abandon our homes and go underground to survive.”

"The people who caused this situation are all those humans who participated in the research of perfecting humans. Those humans saw with their own eyes that the home they relied on for survival turned into such a horrible state, and they all regretted it. But there is no regret medicine in this world.

The time machine only exists in theory. In order to make up for one's own mistakes and preserve the last chance of humankind's continuation,

Seed. The best researchers among mankind have come and gathered in this research institute. It is impossible to turn back time. The only thing that can be done is to create a guardian to protect the remaining mankind. As long as the guardian is activated, the guardian will

It will begin to carry out its ultimate goal and hunt down any creature on this planet that poses a threat to humans."

Hearing this, Han Yu and Ning Ping couldn't help but wonder where the so-called guardian was. Listening to the confidence revealed in the voice, the guardian looked very impressive. After hearing this, Han Yu and Ning Ping also

I understood that this voice should be a recording prepared by ancient humans in advance. As for why it suddenly sounded, it was probably caused by the two of them accidentally triggering some mechanism when they came in. There was absolutely no possibility of any ghost.

"We placed that guardian in the basement of the research institute, and the key to unlocking the guardian is hidden in the crystal statue in this room. As long as it can pass our test, the guardian who protects the remaining humans will use it.

It has its due role.”

Hearing this, Han Yu and Ning Ping couldn't help but yell, these grandsons! They won't stop even if they die! Can't they just put the key in a conspicuous place for people to take it easily? Still a test? I

Your ancestor! You are so damn capable of making trouble!

Han Yu and Ning Ping wanted to think about it, but it was not up to Han Yu and Ning Ping whether to do it or not. Because at the moment when the sound stopped, the door of the room as big as the exhibition hall closed with a "peng". If you want to leave here, you must

Passing through the crystal portrait array that is about to move.

Seeing those crystal statues trembling towards him like an old man who has entered the final years of his life. Han Yu flew up angrily and kicked the crystal statue closest to him away, and fell to the ground.

It fell to pieces. But Ning Ping was more direct, swinging the Crescent Sword like a windmill spinning at high speed, leaving a pile of broken limbs and broken arms wherever it passed.

In a short time, all the crystal statues in the room were destroyed. But the voice sounded again, "Well done! Congratulations on passing the test. The key to unlocking the guardian is hidden in those crystal statues."

middle."

"I will destroy your ancestors!" Ciyu cursed angrily upon hearing this.

…

After some rummaging, Han Yu finally found the key that was hidden in a crystal statue by ancient humans. It was really unethical. In order to preserve it longer, the key was sealed in the body of a crystal statue. Fortunately, just now Ning Ning

They missed it when they slashed horizontally, otherwise Han Yu and Ning Ping would have to find another way to activate the guardian invented by ancient humans and said to have powerful destructive power this time.

Taking the key and returning to the first floor of the research institute, Han Yu stood in front of the door leading to the basement that they had discovered before. Han Yu opened the door with the key. When the door opened, he heard the hateful sound from before.

It sounded again, "If you can open this door, it means you have passed the test. Congratulations, as long as you find the guardian in the next maze, your mission of saving mankind will be completed."

"..." Han Yu was too lazy to curse anymore. Anyway, the person who said this had already died without any scum left. Rather than curse, it would be better to save some energy.

Seeing Han Yu's depressed look, Ning Ping smiled and said, "Han Yu, you don't have to be angry with a bunch of ancient humans who have no bones anymore, do you?"

"I know, but thinking about this really makes me feel angry. Ningping, don't you feel angry?"

"I'm definitely angry, but now I'm even more curious about who the guardian who was blown up to the sky by ancient humans could be? Aren't you curious?"

Han Yu heard this and replied: "I'm curious. I guess it's either a robot or a biological weapon. Only these two things can be preserved longer."

"Then what do you hope for?" Ning Ping asked again.

"Me? I hope it is a biological weapon. If it is a robot, after so many years, who knows if it has become rusty and can no longer move. If there is some programming error, wouldn't it be worse?"

Han Yu and Ning Ping talked while walking. Following the prompts of Han Mengxin on the Courage, they walked towards the place where the guardians were placed. Unlike Han Yu and Ning Ping who were inside, the Courage could be very intuitive through the small reconnaissance device released by Han Yu.

He could see the layout of the entire underground maze. With such intuitive observation, it was not difficult to get Han Yu and Ning Ping to the predetermined location.

According to Han Mengxin's prompts, as long as they walk through the corner ahead, they can see the goal of their trip, the guardian who was so praised by ancient humans. But just when they were about to reach the corner, Ning Ping and Han

Yu suddenly became alert and jumped to the left and right, letting a big guy who appeared from behind jump into the air.

"Woo~~~" The canine that attacked Han Yu and Ning Ping was twice the size of a wolfdog. I don't know its specific name. The only thing I know is that this guy came with bad intentions. Look at its red eyes,

His teeth were white and there were low growls coming from his throat. This guy seemed to regard Han Yu and Ning Ping as prey.

Han Yu and Ning Ping didn't know whether the guy in front of them was originally here or if he slipped in through the door they opened. But since the other party didn't behave very friendly, Han Yu and Ning Ping naturally weren't polite either. The two of them started talking.

Ready for battle.

"Woo~" The vicious dog roared and pounced on Ning Ping. Compared with Han Yu, Ning Ping was relatively more delicate. As for the big sword in Ning Ping's hand, it was obvious that it had not been touched.

He took this vicious dog seriously. Maybe he had never seen it before. Or maybe he was not afraid of this kind of weapon. Anyway, the vicious dog was not looking for Han Yu, but Ning Ping.

It's just that the evil dog was wrong. Ning Ping was definitely not a good person. The scene it imagined of squatting down, hugging his head and shaking did not happen. On the contrary, Ning Ping shouted loudly and the Crescent Sword struck down on his head.

Fortunately, the vicious dog reacted very quickly. He dodged the slash of the Crescent Sword on one side and pounced on Han Yu, who was unarmed at the side. But just as the vicious dog pounced on Han Yu, he saw that Han Yu suddenly fell all over his body.

Out of anger, two fireballs flew directly towards him.

This time the vicious dog was not as lucky as before. He only escaped one fireball, while another fireball hit the vicious dog hard and was instantly ignited. The vicious dog suddenly let out a series of miserable howls and rolled on the ground. When

When the flames were extinguished, the vicious dog had transformed from a hound with fine fur into a mangy dog.

The vicious dog stared at Han Yu and Ning Ping fiercely, feeling extremely hateful in his heart. They are just dogs. Except for mad dogs, most of them bully the weak and fear the strong. People often say that barking dogs do not bite, and this is the reason. When they encounter a dog that barks at you,

Don't panic, because the dog barking at you is more panicked than you.

At this time, as long as you lower your head to pick up a stone or a stick, the dog that barks at you will most likely turn around and run away. Even if it doesn't run away, it won't dare to rush towards you easily. But you can leave calmly.

, as long as you keep a certain distance from vicious dogs, you will be safe.

The vicious dog-like monster in front of me was similar to a vicious dog. After suffering a loss and finding that the target was not as easy to deal with as he thought, the vicious dog first retreated, but was worried that it would be attacked when retreating.
To be continued...