757: C757 There Was a Universe Inside

C757 There Was a Universe Inside

Qin Yunyi followed the instructions of the kirin and dived more than three hundred meters deep. After that, he swam towards the other side of the lake.

All kinds of fish could be seen around him. Although it was pitch black at this depth, Qin Yunyi could still sense everything within a ten meter radius with him as the center.

Apart from his eyes, he could also sense the changes in the water around him through his skin.

Ever since he had broken through to major general, Chi You's combat body could be circulated to the peak of the sixth level. With just an inch more, he could reach the seventh level.

With all his strength, Qin Yunyi could even hold his breath for more than six hours.

However, under the water three hundred meters deep, the pressure on his body was too great, and the consumption of oxygen was also increasing rapidly. Qin Yunyi estimated that the time he could hold his breath would be reduced by at least half.

After swimming quickly for almost half an hour, under the guidance of the Qilin, Qin Yunyi touched the hard soil layer, and his feet stepped onto the bottom of the lake. The steep curve of the soil layer in front of him made Qin Yunyi slightly shocked.

Although this huge freshwater lake also had an inverted trapezoid structure, the trapezoid shape of the edge of the lake that was changing towards the center of the lake was clearly much more steep than the structure of a normal lake that was gradually deepening.

"Levitate upwards, 35 meters. The submarine's sonar traces are continuing to move forward 35 meters above your head!" The Qilin's voice rang out once again.

Qin Yunyi frowned slightly. He followed the Qilin's instructions and swam upwards for more than 30 meters. He was shocked to find that a huge hole had appeared in front of him!

The hole was circular and had a diameter of about seven or eight stories.

It was man-made!

Qin Yunyi looked at the traces at the edge of the cave and immediately made a judgment. At the bottom of the lake that was more than 300 meters deep, there was a large, circular entrance. Although the edge of the entrance had been corroded by the water all year round, the traces of man-made mining could still be seen.

What a huge project! . . . If everything in front of him was done by First Empire. . . How did the First Empire manage to dig such a huge cave at the bottom of the lake twenty years ago?

After being stunned for a while, Qin Yunyi started to move his legs and quickly swam upwards.

After a short while, he swam to the surface of the lake. Qin Yunyi only raised his head and revealed his mouth to the surface of the water. Then, he took three deep breaths and circulated the oxygen in his body before diving down again.

He didn't know how deep that artificial cave was. It was always good to make some preparations.

After returning to the entrance of the cave, Qin Yunyi calmed himself down and swam into the cave.

Only after entering this cave did Qin Yunyi truly understand how vast the project in front of him was!

The diameter of seven to eight floors was at least 20 meters. The previous submarine was only about six meters wide. In other words, the widest part of the cave could allow four submarines to travel together. . .

This was a place 300 meters deep underwater! It was unknown how much money was spent. . .

As he thought about it, he swam deeper and deeper into the cave. After entering the cave, Qin Yunyi no longer needed the Qilin to continue guiding him. In any case, it was just a path that allowed him to swim to the Black Aperture.

After swimming for about a hundred meters, Qin Yunyi was stunned to find that the cave actually began to curve upwards. However, the curve was very small, which was about five or six degrees.

However, after moving forward for another hundred meters, the curve increased once again, and it seemed to have increased by more than a dozen degrees.

Just like that, he kept moving forward. Every hundred meters, the curve would increase by one point. In the end, the curve of the entire cave had reached about 45 degrees, continuously rising!

"Qilin, now. . . Have we already swam out of the lake's range? The range of this curve is also too long. . . "

The more Qin Yunyi swam, the more shocked he became. He couldn't help but ask in his mind.

"According to the distance, he has indeed swam out of the lake's range and entered. . . The cliff. " As the Qilin spoke, a series of data appeared in Qin Yunyi's mind.

"Within the cliff?" Qin Yunyi was stunned for a moment, and then his pupils instantly enlarged. When he thought about the topography of the Great Rift in East Africa, he could only sigh in admiration.

This huge lake occupied an entire area near the bottom of the Rift Valley, and a cave more than three hundred meters deep in the lake was dug. Then, the cave was used as a portal, and the cave was continuously excavated from the underground towards the cliff of the Rift. A huge space was dug out from the inside of the cliff and below the plain!

The tunnel of the cave kept going up in the cliff. When the height of the tunnel was parallel to the surface of the lake, there would naturally be no more lake water. Then, with this height as the base, they began to dig into the space inside the cliff. . .2

No one would have thought that there was actually a huge hollow area under the endless plain!

Although this idea was similar to the Dragon Rider Headquarter, it was undoubtedly harder to find the entrance to this laboratory! Using a huge freshwater lake with a radius of over a thousand square kilometers as a source of income! The person who thought of this method was not only a genius. . . But also a madman!

And to dig out such a huge cave at the bottom of the lake, and to use the cave at the bottom of the lake as a natural door, he dug out a strangely long underground tunnel. Finally, he dug out a huge space inside the mountain wall and below the plains. The amount of financial and material resources required to do so was definitely an astronomical figure!

The First Empire had spent so many things to create such a hidden place. If they said that they had no other intentions, they would never believe it even if they killed Qin Yunyi.

They kept swimming along the cave's curve. After swimming for about two to three kilometers, Qin Yunyi finally saw a trace of light!

The water around him became calmer and calmer. The higher he went, the more obvious the light became. Qin Yunyi even saw the bottom of the submarine he saw during the day. It was quietly floating on the surface of the water, leaning against a deck that looked like a dock.

Qin Yunyi carefully leaned against the wall of the cave and floated up. He only stopped when he was about half a meter from the surface of the water. He carefully observed for a while and found that there were only two patrol members chatting softly in the direction of the lake.

It was between midnight and most of the people had fallen into a deep sleep. Even the soldiers in charge of standing guard were at their most distracted.

Moreover, nothing had happened for so many years. With such a structure, it was impossible for a normal person to find such a natural door.

Thus, even the soldiers in charge of defense would not have any intention to guard against it. . .

Qin Yunyi licked his lips and did not think too much before deciding to attack immediately!

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