Zhang Yuan sighed, carefully observing the photos on the screen. Whether it's from a humanitarian point of view or investigating the cause of the accident, the search for survivors is a good solution.

However, the probability of survivors in the shipwreckage is very small, and the probability of an underground base is higher.

The crisis was not completely over, and after some basic consensus was reached, the meeting quickly disbanded, and both sides began to restrain the population, reduce surface activities, and begin to retreat strategically.

The "Shanhai" battle star of the new human civilization, and the "Karina" planet of the hemisphere civilization, turned on the curvature engine and retreated to a place 200 astronomical units away from the ruins of the Toth civilization, which was safe enough.

Only the Kyushu Planetary Fort remained in its original position, serving as the central headquarters of the front-line exploration forces.

As a military planet, the Kyushu has the most complete means of defense, and it can withstand all kinds of tosses. In other words, if you encounter a truly irresistible danger, it is not impossible to abandon this planet and let it be left behind!

This security measure took a total of 3 days.

After that, the unmanned survey troops on the front line also approached the destination and began to feed back the captured footage. The entire reconnaissance team was divided into two parts, one team approached the ruins of the ships, and the other team began to investigate the main bases of the planets colonized by the Torth civilization......

"What the hell is going on?"

This incident made Zhang Yuan not in a very good mood, and he was not very comfortable sleeping and resting.

The Toth civilization is also an old friend of mankind, and people have learned a lot from those large baby fish, and some good electromagnetic technology is provided by these baby fish. But judging by their current performance, they may well have suffered some kind of misfortune......

If this misfortune befalls mankind, will humanity be able to resist it?

This worry made him a little restless, eager to find out the truth immediately.

A few colleagues next door were discussing in the conference room: "Well, I don't know if any survivors have escaped. They won't be wiped out. ”

They deeply sighed that the fourth-level civilization actually had times when they were in trouble, and they were really vulnerable.

"There should be, I found that the wreckage of these ships was all facing the same direction, and it was supposed to have been attacked while fleeing. But theoretically, there are spaceships that have successfully left, and their total population exceeds 100 million, which is not only what these spaceships can carry. ”

"That's right."

"You say, will it not be a fifth-level civilization...... But there was an internal riot in the Thoth civilization? ”

Zhang Yuan shook his head: "It's not very likely, the social structure of these large salamanders is quite stable, and it hasn't changed for so many years." Could it be that in the four hundred years since we left, there has been a sudden upheaval? This probability is very low......"

"Of course, it cannot be ruled out that the Toth civilization has gotten rid of some kind of black technology, and there has been an incident similar to the sinking of our Bright Galaxy, and there have been internal riots."

"Black technology?"

In the middle of such conversations, the first batch of unmanned advance investigation troops had already fed back the footage they had taken.

Satellite photographs show that it was once a highly prosperous colony planet, with as many as sixteen spaceports alone and a number of large spaceships that have never left.

The spacecraft are almost intact and are industrial-grade nuclear fuel transport ships suitable for short-distance voyages.

It may not have time to start before the whole civilization is paralyzed......

Seeing this scene, Zhang Yuan frowned tightly and meditated.

He vaguely felt in his heart that since there were still intact spaceships in the port, the probability of finding survivors inside the base was not very high......

There seems to have been a ground war at the surface base, with much of the infrastructure destroyed and craters appearing on the ground concrete that had been smoothed. The glass-like soil was the result of a nuclear attack, and there were lumps of metal that had cooled and re-condensed.

"Look!"

A staff member in front of the screen seemed to have noticed something, and said loudly, "This is a crater drilled by a heavy armor-piercing projectile, right?" ”

Zhang Yuan turned his head and looked at the screen.

From inside this crater, you can see the inside of the underground base.

Due to the complete power outage at the base, it was dark inside, and the searchlights shone down, and only the remains of some robots could be seen.

Deeper underground, there are still lights flickering.

In the middle of such a conversation, more than a hundred Alliance exploration robots landed on the ground.

"Do you want to go in and investigate?"

"It's too far away, so don't command randomly."

In order to ensure safety, the distance between the Kyushu command center and the front line is a full 10 hours of signal delay, so these robots are all automatically explored.

If something happens, humans can also send a certain level of instruction to enforce the command.

It only takes 10 hours for the robot to receive this information and react accordingly. In this case, don't let the robot come on its own.

The wreckage of machinery, the craters, and the scattered corpses, the cruelty of the war, for a while and a half, left everyone breathless.

"The Thoth civilization evacuation site is in a hurry." Zhang Yuan's brows furrowed tightly, "I didn't even have time to pack the remains, so I ran away in a hurry." This shows that they think that they have encountered an irresistible disaster, and they will not be able to leave even a second late. ”

After a while, the ship's wreckage investigation team on the other side also came with the shooting results.

Judging from the remains of the destroyed flagship, it is full of various bullet marks. That is, the conventional weapons of the third-level civilization and the fourth-level civilization, electromagnetic cannons, lasers, and some missiles, there is nothing special about it.

But what is even more strange is that after investigation, it was found that some of the shells were actually fired from the inside, as if there was a civil disturbance and the entire ship exploded.

"How so?"

Zhang Yuan saw a charred black object with blurred flesh and blood, and sighed again, this should be the body of a certain big dog "Momero", but now this big dog is dead and frozen in a vacuum.

This thing is really strange, according to Zhang Yuan's understanding, those baby fish are really quite Buddha-like creatures, when they first developed Battle Star together, the endurance of this race was much stronger than that of humans, how could it suddenly become like this?

Li Zhendong, who was sitting next to Zhang Yuan, said in a low voice: "External factors, there is a high probability that it is caused by external factors!" ”

"We have to be careful, some kind of external cause that broke into the explosion caused them to have internal chaos all of a sudden, and in the process of evacuation, even the escape ship was chaotic!"

Zhang Yuan frowned and said, "But have you noticed that all the robot wreckage is from the Thoth civilization." We have not found the remains of an alien civilization. ”

"Maybe the battlefield has been cleaned. It could also be something else. ”

It was already nine o'clock in the evening, and all those in the know were tirelessly discussing and speculating.

"If it's really a fifth-level civilization, what is its means of attack? Why did it attack the Toth civilization, was it just to seize the base? ”