Lop Nur, once the second largest freshwater lake in Chinese history, is now a lifeless, endless wasteland, and there have been various reasons for the disappearance of Lop Nur.

If it weren't for his own experience, Lin Fei would not have believed that there would be a huge freshwater lake nearly a thousand meters below Lop Nur, and at first glance, he almost mistakenly thought that he was seeing the sea.

The water here was a little warm, the place where Lin Fei and Xu Ying fell was at least thirty or forty meters deep, plus the disappearance of gravity before they fell into the water, so that they regained control of the surrounding air current, so they were not injured except for being completely wet.

The two of them surfaced, swimming quickly in the water like fish, and the place where they fell into the water was only a few hundred meters away from the shore, and they went ashore in a while, and everything on the shore made the two people who had just arrived here even more round-eyed.

Plants, they actually saw reed-like plants here, dark green leaves, dandelion-like tidbits on the tips, and radiating a radiant brilliance.

Such plants are everywhere on the shore of the lake, just like on a summer night, when you see thousands of fireflies landing on the reeds in the reeds by the lake, if the light is darker, the rhizomes of these plants are covered, and only the light on the tips is left.

Find a suitable location, and you will have a kind of shock and beauty looking up at the bright Milky Way.

All this, human beings are forces cannot be made, only the magic and greatness of nature, will long be this fantastic underground world.

On the shore, they also found a row of messy footprints, which were obviously left behind by Wang Xiuyong, the people of the three clans, and Zheng Haiyang, who had fallen into this underground world earlier than them.

Following the footprints, you can see the glowing plants that are as tall as a person, and a small piece of it has been trampled flat.

"Lin Fei, perhaps, this is the real emperor's tomb."

Xu Ying, who gradually calmed down from the initial shock, secretly guessed, but Lin Fei disagreed, and retorted very directly: "You mean, such a huge underground world is a mausoleum built by Emperor Wu for himself?" How is it possible, no matter how strong Emperor Wu is, he is just one person after all, this is by no means a person can create it, even in our era, there is no time for hundreds of years, and we can't play such a magnificent construction! ”

This is underground, nearly a thousand meters underground, even if the temperature is as high as 50 degrees Celsius standing by the lake, in such an environment, the people of Emperor Wu's era could not build such a magnificent underground world that shocked the world.

"The use of brute force naturally can't do it, don't forget, the most powerful thing in human beings is wisdom, the ancients Dayu is a good example, of course, it is impossible for the people of Emperor Wu's era to build such a magnificent underground world, not to mention that they don't need to make it, as long as they accidentally found this place when they were building!"

Xu Ying's words made Lin Fei stunned, yes, why do you have to build this place, just find it by chance.

To form such a huge underground world, only the earth's crust moves and squeezes, and the squeezed crust continues to rise to form mountains, and if there are crustal cracks in this uplift, a hollow underground world will also be formed while uplifting to form mountains.

Suddenly, Lin Fei's eyes lit up, and he thought that the smooth, but very solid rock that had fallen just now should be the bedrock that had been washed by the current for a long time.

"To be honest, I prefer this to be the real inner tomb of the Emperor's Tomb, only in this way can we have hope of leaving here alive, as for whether it is or not, we are still waiting for us to find the most direct evidence!"

Lin Fei said this with a prayer in his heart, he didn't dare to delay, and he didn't have time to delay, because he only had more than a day left, once he couldn't get out, if the outside world thought that he was killed here, once he used the weapon of destruction to destroy the mountains above.

At that time, even if this underground world does not collapse and be destroyed, they will be trapped and killed here.

Nearly a kilometer, which is also a kilometer away, for Lin Fei's speed, it is only a matter of a few seconds, if they explode with all their strength, the time is even shorter, but this kilometer is the distance between them and the ground.

A distance that humans cannot surpass!

Even if you use the sharp and unparalleled Star Scar Sword to dig a way out, unless you find the right position, you won't have more than a hundred years to dig a way to the outside world.

The two men followed the footprints, stepping over the flora on the shore, and what appeared in their sight were low trees, some bearing bright fruits, while others were blooming delicate flowers that shimmered faintly.

In addition, what is even more frightening is that there are not only plants here, but also birds and insects, all of which have one thing in common, and they all glow all over their bodies, although the light emitted is very dim, but in the dim world, it is very conspicuous.

"I can't imagine that Lop Nur, which is known as the forbidden land of life, has such an amazing underground world under this thousand meters, if these are known by outsiders, I am afraid that explorers and researchers all over the world will rush to it!"

Lin Fei couldn't help but marvel, everything here is really amazing, not only the existence of plants, but even animals are also living here, continue to move forward, along the way found a lot of footprints that were left not long ago, but there was never a single figure.

A few minutes later, the two of them were blocked by a towering cliff wall, the cliff wall extended vertically upwards and there was no end in sight, and when they arrived here, the footprints also turned around, and the footprints were divided into two sides, and the footprints on the left side were more and more messy.

"Let's go to the right, presumably Zheng Haiyang and they are on the right!"

Lin Fei said as he walked to the right, in this kind of ghost place called heaven and earth, if there is no absolute necessity, it is best not to meet Wang Xiuyong and the others.

Following the footprints on the right, after walking for a few more minutes, the two of them returned to the lake again, and at this time, they found the figures of Zheng Haiyang and Shi Ningxiang, the two of them were in a hurry, as if they were building a boat!

At the same time that Lin Fei and Xu Ying found them, Zheng Haiyang and Shi Ningxiang naturally saw Lin Fei as well, and the two of them hurriedly put down the work in their hands, and after a short period of surprise, they naturally smiled and said, "I didn't expect you to fall off too." ”

At the moment when the mica layer was shattered before, Zheng Haiyang saw with his own eyes that the sword in Lin Fei's hand was inserted into the rock wall, only Lin Fei and Xu Ying did not fall, when the two of them were only a few meters away from the entrance, it stands to reason that it was very simple to escape.

Therefore, the moment he saw Lin Fei, he showed a surprised expression.

"Providence is unbearable, by the way, what are you doing here?"

Lin Fei also smiled, but the vigilance against Zheng Haiyang and Shi Ningxiang in his heart did not decrease at all, but he was very curious, what these two people were doing on the boat.

Hearing this, Zheng Haiyang's smile stiffened, but he still replied truthfully: "There is nothing to be found here, there are cliffs all around, we plan to take a boat to the opposite side to have a look!" ”

In fact, Zheng Haiyang didn't dare to tell Lin Fei the real reason, he explored this area in order to confuse Wang Xiuyong.

After falling into the water, Wang Xiuyong and the others did not kill Zheng Haiyang and Shi Ningxiang, because they also had some fears about this unknown underground world, and they needed cannon fodder at critical moments, and Zheng Haiyang and Shi Ningxiang, who had no enmity with them, naturally became the first choice for cannon fodder.

In order to prevent Zheng Haiyang and Shi Ningxiang from playing tricks, they also deliberately sent a person whose strength was close to Yantian Realm to accompany and supervise, but Zheng Haiyang and Shi Ningxiang were killed and their bodies were thrown into the lake.

The boat was built not only to escape the revenge of Wang Xiuyong and the people of the three clans, but more importantly, the metal fragments brought by Zheng Haiyang were conveying his induction, and the source of the induction came from the other side of this seemingly boundless lake.

Zheng Haiyang concealed all this, and Lin Fei, who didn't know, pretended to be very trusting and nodded: "In that case, let's also help, build the boat as soon as possible, and dump the people in the forbidden land before they can react!" ”

Without waiting for Zheng Haiyang to speak, Lin Fei took the initiative to help, in this regard, Zheng Haiyang could only smile and choose to continue to forbear, he was even more jealous of the people in the forbidden land, he needed Lin Fei to attract firepower for him at a critical moment, so he did not do anything in the process of building the ship.

Now that things have evolved to this point, it has completely exceeded everyone's expectations, however, they don't know that in this unknown underground world, there is a deadly killing machine hidden under the silence.