Liu Fei has very limited information about Xicheng District, and there is almost no mention of dangerous places except for a few important safety buildings. And now, the building where Liu Fei is resting is the safe location shown in the information provided by the tip, which is why Liu Fei chose this building to rest. Of course, Liu Fei also wanted to test whether the information provided by the tip was reliable.

It turns out that the pointed intelligence is still very reliable.

"We're just coming in." The man headed by one of the five big men shook his head.

"I know some." Bob drank a glass of pure water, trying to get rid of the bloody image in his brain.

"Huh?" Liu Fei nodded.

"Before I entered Xicheng District, I used to have a small team." Bob hung his head and looked gloomy, obviously, the memories were painful. "Our team of seventeen people is aiming to get the rare metals and some cash stored in the Commonwealth Bank Financial Building - in the beginning, we were full of confidence, because not only did our team work together, but three of us had reached the level of fighting style in mechs."

Fighting style!

The bodies of the five big men who were eating and drinking suddenly froze, and they looked at Bobu's face in surprise. For them, the fighting style level mecha driver is already very strong, and this middle-aged man who is not good-looking actually has three fighting styles in the team, which shows the great power.

"It's useless." Bo Bu naturally saw the surprise of the five big men, shook his head with a wry smile and said: "In Xicheng District, which is the world of aliens, they will never allow mecha to appear, we are seventeen people, it was very smooth at the beginning, and even, we also collected a lot of gold and silver treasures, but when we approached the financial avenue, the situation became bad-"

"What kind of bad law?" Liu Fei said lightly.

"The Financial Avenue is entrenched in countless aliens, hundreds or thousands of them flock to the top, the most terrifying thing is that there are a lot of high-level aliens here, in addition to their powerful combat power, they can also prevent some low-level aliens from forming organized attacks, I suspect-doubt-"

"Suspect what?" Liu Fei stared at Bobu with a pair of deep eyes. He felt the fear deep inside Bob.

"I suspect that those xenomorphs already possess a high level of intelligence, they know the weaknesses of the mechs, they know how to occupy the high ground, and even lurk in one place and ambush the humans without moving-" Bob had a look of trepidation on his face, and it was clear that the battle was extremely fierce.

"They're attacking you organically?"

"Yes."

Liu Fei frowned, he had already realized that the alien of Zhuo Erxing was evolving on a large scale, which was not good news for human beings. However, this news confirms Liu Fei's speculation, and from what he has learned, the power of human beings in Zhuoer is quite strong, in addition to Li Yanhong stationed a large number of interstellar troops, Li Meng also stationed a large number of ground troops, and the alien can survive in the cracks, which can only show that the alien has evolved to a very terrifying class.

This seems a bit counterintuitive!

In this world, no one knows aliens better than Liu Fei. From the very beginning, Liu Fei had a bad relationship with the perverted multicolored alien, and then was hunted down and killed all the way; After that, Liu Fei hatched the little tadpole and established a brain domain communication with the little tadpole, and after coming into contact with Liu Xiaofei and the little monk, Liu Fei already had a comprehensive understanding of the alien world.

According to the information obtained from the tadpole and Liu Xiaofei, it is impossible for the alien to evolve on a large scale.

The Xenomorphs are a hierarchical race, and their perfect bodies are difficult to leapfrog when they evolve, unless-

Unless-

Unless it's stimulated by the outside world like a tadpole!

However, this theory is not sufficient, and tadpoles are a special case, after all, the evolution of tadpoles is completely dependent on chance and cannot be replicated on a large scale.

Unless-

Suddenly, Liu Fei thought of a possibility. The alien race is threatened by a threat that creates a strong sense of crisis among the aliens, which accelerates the evolutionary process.

This threat evolution is very common in the human world, such as cold viruses, which will evolve at an accelerated rate with the level of human medical care. In the classic cases of the human world, the evolution of several crop pests is the fastest, human science and technology are becoming more and more developed, in order to eliminate pests, human beings upgrade all kinds of drugs, and even use genetic weapons, but the pests are not extinct because of human efforts, but more and more powerful.

If the aliens realize that they are in danger of extinction, their perfect genes are capable of speeding up the process of evolution.

――

Could it be that Li Meng's mecha unit threatens the survival of the aliens?

Liu Fei immediately thought of Li Meng. It is likely that in order to survive under Li Meng's long-term high pressure, the aliens accelerated the process of evolution on a large scale after the cells were stimulated.

This explanation is obviously a bit unsatisfactory, although the human race has caused a lot of survival pressure on the aliens, but it has definitely not reached the point of exterminating the aliens, and the aliens were driven out of the seven star fields by humans 160 years ago, and only a very small number of king-level aliens were born. Liu Fei really couldn't think of any other reason, so far, the enemy of the alien seems to be only human.

Actually, there is another possibility, that is, the tadpole led its people back to Drow, and at present, the tadpole is the only king-level xenomorph that can make the alien evolve on a large scale. Of course, this is extremely unlikely.

Liu Fei didn't get into the horns, and asked Bobu about some details he knew, but he didn't get any news from Ah Jing. After that, after everyone eats, they rest for half an hour and march towards finance again. Although Bobu didn't want to enter with 10,000 thoughts, there was only a dead end to stay here, so he had to follow Liu Fei hard.

What made Bo Bu and the five big men look sluggish was that Liu Fei and his party actually did not hide their appearance, and ran wildly towards the financial building all the way.

Liu Fei was in a hurry.

After determining that the alien was evolving on a large scale, Liu Fei immediately realized that Ah Jing was in a very dangerous situation right now—if he was still alive.

In the midst of running wildly, Bo Bu and the five big men followed closely behind Liu Fei and his party, all of them were terrified, Liu Fei and the ten mercenaries were too strong in combat power, if they hadn't seen it with their own eyes, they would never have believed that there were such terrible people in the Seven Star Domains.

What is terrifying is not the scimitar that flashes with a demonic light, nor the heroic killing that is amazingly lethal, but Liu Fei's terrifying speed and strength!

Those frightened, keratinized aliens were like paper paste in front of this indifferent young man, and they were vulnerable.

His movements are wild and concise, often just throwing the alien to the ground, Bobu saw with his own eyes that Liu Fei just kicked a alien to pieces, and he saw a cold sweat on his back-