A week later, the exploration plane was refurbished. Once again, enter the underground palace.

The exploration vehicle slowly approached the belt of super particles, and the strong magnetic field blocked the impact of the particle flow, and it was still sucking the particle flow into the controller.

After more than ten seconds, a steady stream of energy was injected into the power system, allowing the energy of the exploration machine to reach its peak.

Everything was as expected, and Shangguan Yuyan ordered the exploration plane to continue deeper. I have to say that this underground palace is really huge, and it has not reached the end after going deep for fifty kilometers.

"Swift! I don't feel like a palace, it's like a military base! Li Na said as she looked at the video that was sent back.

"Hey! Don't say it, it's a bit like that! Shangguan Yuyan said.

"I look like a base, too!" Yinyue said.

When the exploration plane entered the particle belt, it lost contact with Shangguan Swift and the others. Now they can only stay in the main hall, waiting for the news from the prospector.

Ten minutes later, the exploration plane had penetrated to a distance of 100 kilometers. It can be said that there is no light at all, the darkness makes people panic, and the sound of the torrent is even more creepy.

But fortunately, the intelligent system of the exploration aircraft is a doppelganger of Ties. With the super high intelligence of the clone, he is fully qualified for this reconnaissance mission.

It's just that Shangguan Yuyan and a few people are waiting outside, but they are waiting impatiently. It's been more than two hours since the exploration plane went in, and there has been no news yet.

They waited like this for another two hours, and the prospector finally returned to the main hall. The three beauties hurriedly stepped forward to check the results of the scan.

In these two hours, the exploration machine went a thousand kilometers deeper. The underground river has many waterways, densely arranged in a huge net.

Oddly enough, the walls on both sides of the underground river have been artificially mined, and it seems that there was indeed a base underneath it a long time ago.

Although the waterways are well connected, there are no dangers. The real danger is the belt of super-energy particles not far from the gate, which is about five kilometers in diameter.

After discussing it, the three of them decided to go down and see it for themselves this time. They entered the exploration plane and drifted down the river with the exploration aircraft.

Following the route previously searched, the prospector soon came to the gate of the underwater palace. Shangguan Yuyan still used the previous method to open the heavy metal door.

The prospector stayed in the decompression room, and the three of them entered the passage. The passage is upward, and it is not known where it leads.

The trio searched as they went, and when they found nothing unusual, they sped up. After about thirty minutes, they came to the end of the passage.

It's the same place as before, with a heavy metal door. To their surprise, though, fluoroscopy scans couldn't penetrate the metal door.

If you can't scan what's behind the door, it can be potentially dangerous. But they're already here, and they're sure to find a way to get in.

For everyone's safety, Shangguan Yuyan did not rush in. The three of them retreated to the decompression chamber and then controlled the prospector to open the door.

Airplanes...

With a roar, the heavy metal door slowly opened. The moment it opened, dazzling rays of light shot out through the cracks in the door.

When the door was fully opened, all three beauties were shocked. In front of me is a huge space, which is brightly lit and has many strange creatures inside.

Shangguan Yuyan used the exploration plane to conduct a perspective scan of these creatures, and it turned out that they were not creatures, but half-human, half-machine "cyborgs!" ”

These cyborgs are busy inside, with rows and rows of assembly lines inside. There are a lot of machines and compounds on the assembly line, and they're assembling these things.

"This, is this going to war!" Li Na swallowed.

There are many assembly lines inside, and at least 100,000 cyborgs are assembled at the same time. They worked tirelessly and quickly assembling these cyborgs, as if they were preparing for battle.

"They're not the civilization that guards the crystals, are they?" Yinyue asked.

"Definitely not! They're not intelligent creatures, they're made! Li Na said.

"Aren't we also made by the little master?" Yinyue asked rhetorically.

"This..."

Li Na was stopped by Yinyue's question, and she really didn't know how to answer for a while.

"You are different, you are perfect beings with flesh and blood, emotions! They're just a bunch of parts. Shangguan Yuyan explained.

"Uh... Right! Swift is right, you are actually no different from us. If you have to say the difference, that is, we were born to different parents, and you were born to the same parents! Li Na explained.

When Li Na said this, Shangguan Yuyan almost burst out laughing. But when you think about it, she seems to have some truth in what she said.

As the three of them spoke, several cyborgs inside looked in this direction. They stared up and down at the prospector, as if they had seen something rare.

And the next moment, the sirens in the base began to sound. Waves of soldiers in battle armor rushed in from outside the hall, moving very fast, and in the blink of an eye, they were next to the exploration plane.

"I'll go! These guards reacted very quickly, and the alarm from this base came too late! Li Na teased.

The gates have been open for a long time, and the exploration plane has been scanning for a long time, before the alarm of the base sounds, and this response is indeed a little slow.

The armor of the guards was strange, and it looked like it was a combination of the scales of some kind of fish. The height of these guards is about two and a half meters, and no matter how you look at them, they have a bit of a sea tribe smell.

"Swift! This can't be a secret base for the Sea Clan, right? Li Na asked.

"Not like! The Sea Clan are much taller than them. Shangguan Yuyan said.

A group of guards surrounded the exploration plane, and the weapons in their hands were also aimed at the exploration plane. One of the leaders came up to the prospector and scanned it with a strange instrument.

A moment later, the door of the exploration machine automatically opened, and Shangguan Yuyan and the others were dumbfounded.

"It's over! Our prospectors are coming to an end! Li Na said.

Every time they perform a mission, they hack into someone else's system, and this time they are hacked by someone else. The intelligence system of the exploration plane has been hacked, and it has lost contact with Shangguan Yuyan and the others.

"Do you want to kill him?" Li Na asked.

"Don't be impulsive! I don't know if they're friend or foe yet, but if they're the race that guards the crystals, you're not killing the good guys by mistake! Shangguan Yuyan said.

"What then?" Li Na asked again.

"Let's wait and see who they really are." Shangguan Yuyan said.

At this point, the prospector had already been driven away by the guards. And Shangguan Yuyan and the others also activated the stealth of the battle armor and followed.