Just as Kungo was happily circling around a pile of wreckage to see if there was anything good inside, a crisp sound came from another passage.

While!

It's like the sound of metal colliding.

Sharp and echoy.

"What's knocking on the pipe?" Kungo looked at the pipes above the passage.

Some of those pipes are energy crystallization pipe networks, some are pressurized air pipes, and some are pipes for other purposes. But now all of these pipelines have stopped, except for those of the energy crystallization pipe network, which are still running at low power.

This was when Po's powerful scanning abilities came into play, and he quickly locked onto the pipe, which was still bearing the aftershocks.

"It's a hollow tube, the wall of the pipe is very thin, I don't know what it used to do!" Awa shares the scan results with Kungo.

In Kungo's line of sight, one of the several pipes at the top of the passage was marked red.

"Accidents? Still is? Kungo raised an eyebrow.

"It's not like an accident. There was only one sound. The vibration analysis also shows that there is no subsequent impact, so what do you think was the accident that was only a one-time impact? "Apodo.

In an unmanned underground base, the so-called accident is nothing more than what equipment peels off and hits something.

But obviously, if this is the case, there is absolutely no way to have only one impact.

It is impossible for something that lands normally to stop just by hitting it.

Then there is only one possibility.

There is interference from external forces.

Kungo grinned and disappeared in an instant.

The external armor follows closely behind him, turning on the stealth mode without making a sound.

Kungo can now reach a limit speed of three hers, which is a speed he can achieve without using any auxiliary equipment.

For the sake of concealment, of course, he would not use that kind of speed with a lot of movement now, but even if the movement is reduced to a minimum, Kungo's speed can be regarded as extremely fast in a planetary environment.

Soon, he came to a small room.

Between each large spherical space is a large cylindrical passage that is connected. These large passages are often more than 25 meters in diameter, which is quite wide.

And these passage interruptions are actually connected to many small spherical rooms.

Some of the rooms are function rooms, while others are like living quarters.

The small room that Kungo has now found is a living quarter.

The room was small, with a single bed, a set of tables and chairs, and something like a wardrobe, nothing else.

The room was spotless and free of any clutter, like a room that had long been abandoned.

"There isn't any molecular infiltration of the items here, you know!" Po quickly scanned the room.

The longest history of this base dates back to 700,000 years ago, and for such a long time, even the products of the Golden Empire would have molecular infiltration without the help of an aging condenser.

In fact, the shells of the large boxes in the warehouse had long since grown with the floor, and they were all forcibly cut by the squid.

But in this room, there is no trace of molecular infiltration.

That is, what this room has been in use all the time.

"There is no residual heat radiation, it seems that this friend who is peek-a-boo with us has no body temperature, or can control his body temperature!" Po continued to scan and analyze the room.

Kungo followed the pipe that had been marked earlier to a corner of the room.

There, a small section of the pipe's diverter was exposed in the broken wall, leaving a deep dent in it.

The dent was new, and it looked like a knife had been stabbed the tube.

"This pipe is supposed to heat every place in an emergency. This design is often seen in buildings designed by the Empire for vassal races! Po repeatedly analyzed the thin tube and came to this conclusion.

"With the technology of the Empire, such a primitive thing is needed to control the temperature?" Kungo was surprised.

Humans now have the ability to directly control the temperature of the air, why do the underground bases built in the heyday of the empire still use such primitive things?

"No matter how high the technology is, it can't stand the glass hearts of some vassal races. Some vassal races are because of customs, and some because of ethnic characteristics, people just can't use high technology, what can you do? Apo's words were filled with helplessness.

Kungo pouted, "Okay, I think I understand." What a bitter result! So what do you think is here? Robot? Or something else? It's hard for me to imagine any creature living here forever! ”

Po: "Then we have to keep tracking." But what I'm more curious about is, what does that guy mean when he makes such a loud noise? What's the point of him knocking this? Blunder? Or ......"

"Wanted to get our attention, but didn't want us to find him! At least not right away! Kungo's gaze swept over every corner of the room, "Maybe we can find some clues here!" ”

"I'll scan it again!" Apo said immediately.

But this time, it was not Awa's information radar that made the contribution, but Kungo's eyes.

He found an inscription underneath the bed frame.

"Come back!"

"The nick is very new!" Kungo looked at the short sentence carved out in Lando.

"New? This thing is freshly carved, and it won't take more than five minutes at most! Awa said with certainty after the scan.

"What the hell is this guy playing?" Kungo was confused.

"How do I know? But this thing can't be a clue either! Apo snorted twice.

"Not necessarily, look below!" Kungo lifted the bed frame and saw another notch in the lower right corner of the phrase "Come back."

Also brand new, but smaller and less easily visible.

“12508 66983 69820 44599！”

That's a string of numbers.

Of course, it was written in Lando.

"Okay, is this guy playing a recon game with us?" Kungo's forehead jumped.

"It can't be a psychopath!" That's what Awa said, but he has turned on the analysis mode and started to analyze what the meaning of that string of numbers is.

But nothing came of it.

It's not a coordinate system, it's not a code word, it's not a meaningful number!

"Well, I think we're really having a nervous break!" Awa tried for ten minutes and decided to give up.

"Let's record it first, I think this thing may not be as complicated as we think!" Kungo seemed to have something else in mind, and laughed playfully, "Let's go, let's go to the next place!" ”

"Do you know where to go?"

"I don't know, but I'll know!"