It is a wall carved with strange patterns, which resembles a six-pointed star, but in the upper left part is carved a closed eye. The cross passes through the six-pointed star, and between the inner and outer rings is carved some kind of mysterious script that resembles Tibetan, but it is certain that it is not any known script. When they try to imitate it, they will find that the copied font and the ontology are completely different characters.

"It's really amazing, it's very likely that this is some lost civilization site!" A certain historian lamented.

For most of the month, they traveled back and forth between the wall hidden dozens of meters underground and the laboratory every day, constantly collecting information to build models. Each corner of the six-pointed star corresponds to a complex information structure, and only by pressing six correct passwords at the same time can the door be opened. It is said that behind this mysterious wall gate, which is neither stone nor iron, is a tomb and a passage, and the passage can successfully avoid the restrictions of the light curtain to leave Lake City. After half a month of mathematical simulation attempts, they finally found the correct password.

Under the instructions of the old scientists, the six people wearing grimace masks pressed down the six symbols representing the numbers in the outer ring of the hexagram, and then the hexagram began to rotate, and the symbols and characters between the inner and outer rings were rearranged as if they were being manipulated. This is some kind of black technology similar to the tomb mechanism, and in a burst of exclamations, the stone-carved glasses suddenly opened as if they came to life.

There are no carved eyeballs in the stone eyes, but a hole the size of a finger.

"It's ...... Keyhole? ”

"But where will we get the key?"

Everyone was surprised, no one thought that this unknown era of the wall door actually needed a key!

"This, this is ......"

The scientist led by the leader shone a flashlight into the hole, as if thinking of something, and he patted the mud wall excitedly.

"The book is right, it's a gene lock!"

Book? Gene lock?

The man behind him didn't understand what he was talking about, but he quickly explained it with action. The old man stretched out his finger and put it into the hole, and then he saw the outer circle of the six-pointed star turn a little, and soon recovered, and the old man withdrew his finger in disappointment, and sighed that he could not do it.

"Is this fingerprint verification? Teasing me, can there be this kind of technology in ancient times? A grimace laughed.

"It's not fingerprint verification, it's blood recognition! Look at my fingers! The old man said and cocked up the thumb he had just put in, and saw that a bloody hole the size of a pinhole was still bubbling out.

"Only those who are approved by it will open the door to it. This is one of the conclusions we have come to when we study these texts, which is consistent with what is written in that book, you come one by one, try it out! ”

"No kidding, who knows if you get tetanus if you get pricked! If this thing carries some ancient virus, then we're not finished! Some of the grimaces were visibly reluctant to listen to the old man.

Just when the old man was frowning, the clown man walked in through the underground tunnel, and the whole underground tunnel was silent the moment he entered.

The people who had just retorted looked at the clown man standing motionless at the entrance of the passage at the moment, and they couldn't help but get nervous, "Okay, let's try!" Let's try! ”

The grimace man who led the way for Jiang Luo at first pushed Jiang Luo and whispered, "Don't look at it, hurry up and line up." ”

"Why are you so afraid of him?"

"Shhh, Boss Yan, you will know about his strength sooner or later, here, all the people in Lake City are afraid of him."

The grimace in front of him put their fingers into the hole one by one, and very few would make the outer ring of the hexagram rotate most of the way, but they couldn't completely close the outer ring and open the wall door.

"Not enough, not enough!" The old man muttered to himself as he observed the carved ornament on the closed door.

Soon the long line reached Jiang Luo, Jiang Luo put his finger in, felt that his fingertip was stabbed by something, and then the blood in his body flowed out along the needle hole. He can basically control the heat flow in his body now, and when the heat flow rises up and wants to flow to his fingertips to heal the wound, Jiang Luo suppressed it in time, he doesn't want to show his special in this strange place.

But obviously there was something wrong with his blood, the outer ring turned around, and then coincided with the inner ring, the hollow black stone eyes suddenly turned, and suddenly emitted a dazzling light, everyone could not be pierced by this light and could not see, when the light dissipated, the wall door in front of them had completely disappeared, leaving only a huge black hole, as if waiting to be devoured by the devil's cave.

"This ......"

"Where's the stone wall?"

The grimaces were all confused, and the impregnable wall door disappeared when it said it was gone. The scientists also carefully observed the place where the original stone wall existed, as if it had never appeared, and the stone wall disappeared without leaving a trace.

"Miracles, here." The clown man muttered as he stepped forward, and the grimace made way for him.

He stared at Jiang Luo, who was standing in front of the original stone wall, this person wrapped in black robes initially gave him a familiar feeling, like the smell of the same kind, but he never thought that he would be able to open this stone wall.

Interesting!

The clown man looked at Jiang Luo's gaze as if he was in perspective, and only after a long time did he look away and look at the pitch-black passage ahead.

"Get in!" The clown man stepped in first, followed by the grimace man behind him.

Under the bright light, you can barely see the situation in the passage, this passage is two people high and four or five people wide, like a mud-stained city sewer, and the walls of the passage are full of some unknown dark gelatin, which feels like rusty asphalt that has been solidified for a long time.

More than 100 people walked in a long line along the dark passage for about a quarter of an hour, and finally entered a spacious place, still pitch black, but there was no top to see, even by a strong light.

"Whew!"

The old man, who led the team at the beginning, vigorously swept away the ashes from one wall, and he used a lamp to shine it, and a picture appeared in front of him.

"Come and see!"

Several researchers pondered around the mural, Jiang Luo took a closer look, the first picture on the upper left was painted with some kind of paint like dried bloodstains, a group of human figures, they were kneeling on the ground in worship, and in the sky there was a huge six-pointed star and the eye in it, this six-pointed star pattern was exactly the same as on the previous wall door. In the second picture, the heavens turned bloody, and all the people on the earth trembled and fled. The last image is of a six-pointed star exploding in the sky, and dark red paint is painted all over the world, and in between, you can see some strange shadows surging on the horizon. All three images are detailed and vivid, and although the brushwork is rough, it just gives the viewer a sense of immersion.

"Isn't the painting on it the same as what we experienced!" One researcher exclaimed.

Only then did everyone remember that if the six-pointed star represented the blood moon, these three pictures added up to everything that everyone had experienced since the end of the world, the blood moon that brought fear, the fire rain after the explosion, and the monsters that followed......

"Let's see what's in the back!"

The researcher urged the old man, who was about to reach out to look at the mural behind him, when he suddenly heard an exclamation from behind him.

Everyone used the bright light to probe in the direction of the shout, only to find that dozens of steps outside the wall were all suspended in the air, just now the grimace man accidentally stepped on the air and fell, but his voice disappeared after about a few minutes, and everyone hurriedly stuck to the wall.

Jiang Luo picked up a stone and threw it into the deep pit in the distance, but he couldn't hear the sound of landing for a long time, he used a strong light to look around, guessing that the general situation of this place was that there was a very deep hundred-meter pit in the center, and around the pit was a cliff dozens of meters wide.

"There's a way down here!"

"I have it on my side, too!"

As he explored, the grimace discovered that every once in a while a staircase ran down the pit wall to the pitch-black bottom.

"It's the ladder down! There is no other way out! ”

A group of people cautiously walked down the stairs that could only accommodate three feet against the wall of the pit, but fortunately there was no convection wind in it, and everyone was still able to walk undisturbed.

After walking more than 90 steps, I came to a cliff along the pit that was tens of meters wide. This layer of cliff is built inside the pit wall, that is to say, the stairs are extended to the inside of the pit wall, and everyone speculates that the whole pit should be a relatively straight cylinder as a whole, so the people who fell down before will fall directly to the bottom of the pit instead of falling on the cliff of this layer.

On this layer of space of tens of meters, there are countless pitch-black coffins densely placed, these rounded black coffins are tightly knit, it is difficult to move a minute, and it is difficult to know what is loaded in them. However, judging from the surface of the black coffin, the material used is still an unknown substance similar to asphalt.

"Is this a large burial mound?" The historian exclaimed, and the entire space on the second floor was filled with black coffins, with only a two-meter gap between each coffin.

When everyone descended to the third basement level, they still saw the same black coffins, but there were significantly fewer black coffins on this level, but each coffin was more spaced.

"The black coffin on this floor is obviously larger than the one on the previous floor."

"Let's keep looking!"

"Wait! Look at this black coffin, how is it empty! The historian was amazed to find this unusual black coffin, and he used a strong light in his hand to illuminate the black coffin, but because the black coffin was so large, he could only poke half of his body into it.

"It's ......"

When he reached out, he found a layer of dark green slime like meat sauce sticking to his palm, and a smell like rotting flesh spread.

"The residue of a carrion?" He put his hand between his nose and sniffed, "It's not like that! And it can't be! ”

Yes, this tomb has a history of more than 1,000 years, how can there be a corpse that does not decay for thousands of years? The door had just been opened, and it was impossible for anyone to enter the tomb before they did, so where did the carrion come from?

"No, this black coffin is empty! Where did the coffin owner go? ”

Thinking of this question, the historian couldn't help but feel a chill in his back, and even though there were more than 100 people around him, he still felt the chill.