Although the speed of cultivation has accelerated, according to Yun Yi's estimate, it may not take half a year for him to step into the ranks of the seventh level. But the communicator never got a response, which made his heart extremely heavy.

It seems that life has been set in stone lately. After a few days of observation, Yun Yi easily found that those monsters have a certain pattern of daily movements, that is, those monsters will not casually run to the wreckage of the Honglei to make trouble.

Occasionally, one or two monsters would come over curiously to take a look, but they were just curious, and they didn't do much damage to the already dilapidated ship. As for the remaining corpse of the monster, it didn't seem to have any attraction to them, and they pretended to turn a blind eye when they touched it.

Without the mecha, Yun Yi didn't dare to challenge the beast. Now that he has enough food, he can only wait for the communicator to contact the rebel base and leave this hellish place one day in the future.

In addition to eating and checking the communicator, daily life is practice.

Without anyone disturbing him, Yun Yi's martial arts advanced almost by leaps and bounds. Of course, this also has the effect of speeding up the flow of internal forces. After the first few days, the cloud wing is now accustomed to the flow rate of this internal force. And during the inadvertent period, he also gradually discovered. His physical strength seems to have improved more than before, and other aspects including speed, agility, toughness, and resistance to blows have been greatly improved.

This discovery surprised him.

You must know that although when cultivating martial arts, these attributes will naturally increase a little, but Wan Wan is not so exaggerated. And the increase in the last month is at least equivalent to the overall improvement of the whole body after breaking through the sixth-level bottleneck before.

In addition to the physical changes, the changes are more pronounced in terms of intelligence. The first thing he discovered was the ability to remember, a few days ago, by chance, when waiting for the boredom of the communicator, Yun Yi removed a still intact light brain from the wreckage of a mecha, intending to learn the structure of the mecha, to see if he could use the wreckage of those mechas, to assemble a mecha that could be used, but he was surprised to find that those slightly esoteric knowledge for Yun Yi, who had only learned the basics, had been firmly remembered after only two or three times.

This discovery made Yun Yi very happy.

You must know that Yunyi is not too smart, and when he used to study at the base, he had a headache about all aspects of knowledge. Often, some knowledge is memorized by rote for several days and is difficult to remember. Therefore, he is not too interested in knowledge. For him before, it seemed that achieving achievements in martial arts was all his dream.

And now, after a great change in his memory, his mind has quietly changed. The vast amount of esoteric and obscure mecha knowledge, including materials science, dynamics, physics and many other aspects of knowledge, was all swallowed by him and memorized in his mind.

In the process of studying, he was surprised to find that not only did he improve his memory, but also his analysis and comprehension were also different from usual. What was originally as complex as a book in heaven has become as easy as one plus one equals two after a simple analysis.

How does this dislike Yunyi?

Now Yunyi has taken half of the time to practice martial arts to learn these aspects of knowledge.

What used to be a headache is now easy. At this moment, the cloud wings seem to have become a huge sponge, greedily absorbing nutrients in the ocean of knowledge. In less than a month, he had learned the knowledge of a mecha that an ordinary person needed to learn for almost half a year.

And just when he was in high spirits and planned to continue studying, an accident appeared.

"How so!"

Yun Yi stopped the flow of internal breath and sat there in a daze.

"Why is the originally accelerated flow rate gradually returning to the previous level?" Yun Yi felt the flow rate in his body, puzzled. But I regretted it at any time, I knew that I only had so much time, why did I waste time to learn those knowledge and work hard to improve my martial arts......

After a few more attempts, Yun Yi finally gave up.

"Could it be that the flesh of those monsters has no effect?" Yun Yi secretly guessed. In this state, he didn't have the slightest motivation to practice. I don't have the feeling of making rapid progress in the past, and I feel uncomfortable no matter how I practice.

After stopping his cultivation, Yun Yi came to the command room where the communicator was installed. The communicator remained as it had done before, without the slightest response. Turning on the light brain casually, Yun Yi called up a piece of knowledge about the structure of the mecha and looked at it carefully.

But it didn't take long for him to find that although his memory and analytical ability had not been reduced to the previous level, compared to him a few days ago, it was like a bright moon and fireflies.

This discovery made him almost feel dead, and he hurriedly checked his body. Thankfully, his worst fears didn't come up. His strength has not regressed, and although the growth rate of physical strength, endurance, and speed, which has increased dramatically on weekdays, has returned to the same as before, the growth during this period has not fallen.

After sitting there for a moment, Yun Yi suddenly laughed at himself.

"My talent is not very good, and being able to have a state far beyond ordinary people for a month is already an incomparable attachment from God. A month can save months of time in my martial arts, and my physical fitness has exceeded that of ordinary training, and I have also learned the knowledge of mechas, so why not be satisfied? ”

Yun Yi said to himself: "My talent is not very good, but now it is just the same as before, and it is not declining, so what is there to regret, just work hard and cultivate." Besides, it's still a question of whether I can get out of here, so what do you want to do so much. ”

In an instant, Yun Yi figured out the problems existing in his body, his heart suddenly brightened, he smiled, and walked to his room.

Taking off his clothes, just as he was about to take a shower and cool off and continue his cultivation, he strangely found that the family heirloom necklace on his chest had changed back to its original blue fluorescence at some point, and it was no longer the multicolored light it used to be.

Thinking of the changes in his body, Yun Yi suddenly realized!

"There's definitely something wrong with this necklace!"

Yun Yi took the necklace and looked at it over and over for a long time, but he didn't understand why it suddenly became colorful more than a month ago. After thinking for a moment, Yun Yi didn't get any answer. After taking a bath, Yun Yi, whose mind was full of necklaces, did not cultivate. In a trance, he came to the outside of the passage. At this time, it was still dusk, and there were no monsters outside, so it was relatively safe.

Looking at the yellow sand between the heavens and the earth outside, Yun Yi touched the necklace and sighed slightly.

What would happen to me if I couldn't get out of here?

How many days can you hold on to such loneliness?

Before, I was able to enrich my daily life with hard cultivation and greedy study. But now, Yun Yi is afraid that one day he will not be able to bear this strong sense of loneliness and run to the monster pile to commit suicide.

Turning his head, his gaze fell on the five-meter-long alloy knife lying on the ground. The long knife seemed to laugh at him, at his cowardice, at his inability to face the loneliness and pain of life.

Stroking the alloy long knife, and then touching the necklace on his chest.

"If my parents were looking at me from the sky right now, I wonder what they would say. Is it to encourage yourself to live bravely? Or do you hope that you will be reunited with them sooner? ”

Holding the necklace, Yun Yi gently closed his eyes.

"My brother hates ...... Woohoo......"

"Tsubasa, you can't scare your sister with a caterpillar......"

"Xiao Yi, Xiao Luo, study hard, and take you out to play on Sunday......"

Father...... Mom...... Younger sister......

He not only has to live for himself, but also avenges his parents and loved ones. The enemy is still alive in the world, how can he die! Looking at the sky, Yunyi shouted loudly: "Dad, Mom, little sister!" Look at it, I will definitely live bravely, and I will definitely avenge you! ”

After yelling, Yun Yi's consciousness softened, and tears couldn't help but slide down.

No matter how strong and brave he is, at this moment, he is just an ordinary sixteen-year-old boy. Under the torture of loneliness and despair, it was extremely difficult for him to hold on for more than a month.

No one talks to him, no one lives with him.

Yes, it's just a cold light brain, and that endless knowledge.

In Yun Yi's heart, he had long regarded the alloy long knife as a friend and his brother. Every day after waking up and before going to sleep, he went back to look at the alloy knife, talked to it about his heart, and told him what he had learned recently.

Perhaps, only in this way can he resist the torment of loneliness in his heart.

Again, his gaze fell on the alloy long knife, as if he had thought of something.

Suddenly, Yun Yi looked at something that he had rarely noticed recently.

"That's right! Definitely this one! ”

Yun Yi shouted excitedly, and sprang forward with an arrow. In front of him was the head of the alien monster he had painstakingly slain more than a month ago. I don't know why, more than a month has passed, and this head has not decayed, it is still so ugly, quietly thrown somewhere.

Feeling out the necklace on his chest and looking at the hideous head, Yun Yi's heart immediately surged with a wave of fanaticism.

Yes, he thought of it. The time when the necklace mutated was when he entered the skull, and his body was covered with the green liquid and white brain.

Could it be one of these two substances?

Yun Yi suddenly felt itchy, and quickly pulled a steel cable to tie it to himself, and then jumped onto the broken eye socket. He didn't want to slip into the monster's skull like he did last time.

This time he entered, Yun Yi took two small bottles, and next to his eye socket, he easily collected a bottle of green liquid. Immediately afterward, he didn't care about the nausea, pulled the steel cable on his body, and took another bottle and drilled it into his eye socket.

The foul rancid smell immediately hit his nose, and Yun Yi immediately held his breath, for fear of fainting from the stench. With his current level 6 physique, he can hold it for at least ten minutes, which is enough time for him to collect a bottle of brain pulp.

However, things don't seem to be going so well.

Originally, when the monster was first slaughtered, the inside of the monster's head was almost all white brains. But more than a month has passed, and most of these brains have disappeared for some reason.

Is it volatilized? Or was it eaten by something else? Or was it absorbed by a corpse?

Yun Yi didn't have time to think about this, and after his careful search, he finally found a brain pulp that could hold a small half bottle in the innermost part of his brain. After collecting it, Yun Yi searched around again, but found nothing more.

After returning to the room, Yun Yi immediately washed off the dirt all over his body, and then took out the two bottles of liquid.

If he guessed correctly, it should have been one of these two liquids, which reacted with the mysterious stone on the necklace, and he was able to make rapid progress.

Although he guessed so, Yun Yi was still a little nervous, for fear that he had guessed wrong.

Carefully picking up the bottle of green liquid, tilting the mouth of the bottle slightly, a stench of green liquid flowed down and landed on the necklace.

One second...... Two seconds...... Ten seconds...... One minute...... Ten minutes......

Half an hour passed, and nothing had changed in the stone.

It seems to have failed.

Yun Yi's heart sank, and after scrubbing the stone clean. Instead, he turned his gaze to the bottle containing the brains, and secretly prayed in his heart that he hoped that this time would be successful.

Inside the bottle, there is less than a third of the brain, I don't know if this is enough.

Taking a deep breath, Yun Yi carefully tilted the mouth of the bottle, and the soft white brain slipped down slowly, gradually covering the stone......