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The map is not big, and at first glance it looks like a jade pendant, but this is not a jade pendant, but a map.

The map is carved from the finest Hetian jade, and it is covered with dense lines, and ordinary people can't tell that it is actually a map.

Jiang Yi didn't understand this map after looking at it for a long time, as if this map shouldn't be seen like this. Hidden Fox had too many memories, and Jiang Yi hadn't checked it thoroughly for a while, so he didn't know much about the map.

"Master, this map needs to be put in water to see clearly. Hidden Fox explained on the side.

"Oh, take a basin of water and try it. At that moment, Jiang Yi asked the Snake to bring a basin of water, and he put the map into the water.

As soon as the map entered the water, it immediately emitted a luster, and Jiang Yi was also surprised on the side, and in his surprised gaze, a beam of light shot out of the basin and shone on the ceiling.

What appears on the ceiling is a pattern about one meter in diameter, which is the map. The map shows a number of mountain leylines, and in the center is a black skull.

"The location of the skull is Jiayuguan, and it is also the location of the underground world. Hidden Fox said slowly.

Jiang Yi nodded and looked at the map above carefully.

"Based on our covert investigation over the years, we feel that it is not by chance that this Jiayuguan was built there, perhaps it was established to suppress the underground world. The Serpent spoke slowly.

Over the years, the hidden fox has been living in seclusion in the city, while the dark snake is unwilling to be lonely, roaming the world and secretly exploring the secrets of Jiayuguan.

For more than ten years, he has been to Jiayuguan countless times, and he has even been to see the entrance and exit of your underground world no less than dozens of times. Every time he came into contact, he felt more and more that there was a secret like a black deep pool in Jiayuguan, which made people unable to see through it, giving people a mysterious feeling.

"If you have a chance, you must take a walk and have a look. "Jiang Yi has always been very interested in these mysterious places.

Back then, in the Linlang Continent, the reason why he was able to cultivate and improve so quickly was not because of his talent, but because he went in and out of dangerous secret realms again and again, although every time it was nine deaths, but the so-called greater the risk, the greater the benefit.

What he gained in the secret realm enabled him to surpass his predecessors step by step, and finally become a generation of god kings.

Regarding Jiayuguan, Jiang Yi's understanding is similar to that of ordinary people, and he doesn't think there is anything strange there. And now, he feels that this Jiayuguan is extraordinary. He even suspected that those places of interest, famous mountains and rivers may have hidden secrets, and Jiayuguan is just one of them.

"Master, I have also made a major discovery in the Takrakan Desert this time. The Serpent spoke.

"I know, is it the sandbar?" Jiang Yi said slowly.

The Serpent has been searching for the secrets of the underworld, hoping to learn something about it. He wasn't going to enter the Underworld again, it was so terrifying that he didn't want to step into it again for the rest of his life.

He investigates the underworld just because he really has nothing to do, so he investigates and investigates as a way to pass the time. As a result, he really found out something.

He accidentally found an ancient book in the old library of Jiayuguan City, which recorded the history of Jiayuguan City, including the construction of Jiayuguan.

According to the records of ancient books, Jiayuguan was built in the fifth year of Hongwu in the Ming Dynasty, that is, the fifth year after Zhu Yuanzhang, the founding emperor of the Ming Dynasty, called the emperor, the whole process can be called huge, before and after, it took a total of 168 years to complete the construction!

A pass has been built for 168 years, and the world really can't imagine how much hard work and manpower and material resources there are.

The ancient books not only record the establishment of Jiayuguan, but also record a secret story that has never been circulated.

In that year, Song Guogong and Feng Sheng, the general of the conquest, passed through Jiayuyuan on the way to triumph of the class, which was a choke point at that time, and the geographical location was extremely important.

Feng Sheng, the Duke of Song, was a general under Zhu Yuanzhang, who fought in the south and north all his life, and made great achievements for Zhu Yuanzhang. And his most outstanding achievement was to lead 200,000 troops to conquer the Liaodong Peninsula and purge the Yuan Dynasty's power in Liaodong.

In that year, Feng Sheng's army returned triumphantly and rested in Jiayuyuan. And that night, Jiayuyuan suddenly blew a red-haired whirlwind, and there was even a faint roar of beasts in the Qilian Mountains in the distance, and the ground under their feet trembled violently, as if some terrifying monster was about to rush out of the ground.

Feng Sheng was shocked, and as soon as the next day dawned, the red-haired whirlwind stopped, and the roar of the beast and the tremor of the earth disappeared. Feng Sheng immediately sent people to investigate the surroundings, and someone later reported that this was the case every night here, and the nearby mountain people did not dare to come here at night.

There are even rumors among the people that this is the devil's lair, and sooner or later the devil will break through the ground and slaughter all directions!

After returning to Beijing, Feng Sheng informed Liu Bowen of the incident.

Liu Bowen is Zhu Yuanzhang's military advisor, this person is a capable person, can pinch and calculate, and is respected as Liu Shenxian. Liu Bowen pinched his fingers, his face changed greatly, and he immediately wrote to Zhu Yuanzhang.

No one knows what Liu Bowen said in the concerto, Zhu Yuanzhang immediately ordered to build a Xiongguan in Jiayuyuan after seeing the concerto, and deterred the evil demons with the majesty of the Xiongguan!

At the beginning of the construction of Jiayuguan, there were many troubles, but it was Liu Bowen who personally took action to quell the turmoil, which made the construction go smoothly. And what kind of turmoil is not recorded in the ancient books, and the writers of the ancient books are very secretive about it, and there is a deep fear between the lines!

After the construction of Jiayuguan, this place was completely peaceful.

However, it is also recorded in ancient books that Liu Bowen left a mysterious entrance in Jiayuguan, which can lead to a mysterious world. However, the entrance to the cave was sealed by Liu Bowen, and outsiders couldn't find it at all.

However, Liu Bowen left behind a map, and legend has it that by getting that map, he can open the mysterious underground world and get unexpected gains.

When the snake saw this, he immediately thought of the mysterious hall master from the beginning.

The Lord of the Hades must have gotten this information somewhere, and later he found the map, so he sent them to open the underground world to retrieve the treasure. However, the treasure was not found, but a world full of demons.

"Liu Bowen, it seems that this person should be a powerful cultivator. To be able to seal a world with his own strength, this person's strength should be extremely strong! However, it is also possible that the underground world was not sealed by him at all, and the seal has always existed, but the seal has been damaged, so he used Xiongguan as the base of the formation and suppressed it with a large array! And this jade map is the key to opening the corner of the great array. ”

Jiang Yi was well-informed, and from these clues alone, he guessed a lot of useful things. For that mysterious underground world, in Jiang Yi's opinion, it should be a different space!

What is Alien Space?

The space we live in is called the main space, and there are some small and scattered spaces outside of our main space. These small spaces exist independently and are extremely closed, cut off from all contact with the outside world, and these small spaces are called alien spaces.

The relationship between the alien space and the main space is like standing on the earth and looking at the stars in the sky, which seems to be very close, but in fact it is extremely far away.

Only a special spatial passage, or with extremely strong strength, can penetrate the two realms and walk between the two realms. This jade map is equivalent to a spiritual object that opens a passage to another space, without it, even if Jiayu Pass is demolished, it is impossible to enter another space.

There are thousands of different spaces on the Linlang continent, and the different spaces are large and small, the big ones are not much smaller than the main space, and the small ones may be as big as an island.

There is also a secret story in the ancient texts, which records that there were people who came out of the underground world, and it was not a single person, but a group of people! These people were no different from normal people, they mixed with the crowd, and gradually migrated westward, and finally entered the vast Taklamakan Desert, where they lived.

Legend has it that there is a huge oasis in the depths of the Taklamakan where those humans who have come out of the underworld live on that huge oasis.

The Serpent followed this clue all the way west to the Taklacan Desert. He plunged headlong into the desert and searched for it for three whole years!