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In three hours, the spirit body collected tens of thousands of cubic meters, weighing tens of thousands of tons. This efficiency is too high, even if the entire Stygian Cave Star, tens of thousands of mining workers, and countless machinery and equipment are used, they are far from being comparable to Du Jingyan's spirit body.

"Okay, let's go back, you are ready to get to work, every five days, at least a drop of gold liquid, one drop less, don't want to get paid. With that, Du Jingyan carried Ye Feng and returned to the fixed eye.

Ye Feng's cabin area is quite large, and the decoration inside is comfortable and beautiful, with a hint of feminine warmth. After taking a cold shower, Ye Feng found the soul gold in the storage room. Soul Gold is the kind of white fluffy companion creature, it turns out that Du Jingyan has known this kind of thing for a long time, and it also has its own name.

The Cultivation Bead has no way to deal with the Soul Gold, and must use the ancient method of extraction. After rummaging for a while, looking at the label on it, Ye Feng moved a cubic meter of storage box over, filled it with gold, this thing does not need to be weighed, one cubic meter is exactly one ton, and the density difference between the pure water of the four stars in the sky is like.

Sitting on the storage box full of soul gold, Ye Feng sank into the spiritual sea, controlled the void spirit, and began to slowly transform the soul gold. An energy bead was added to the body, and the degree of transformation was significantly faster, and this time it took about three hours for a drop of bright gold liquid to be transformed.

Sensing it, the spirit strain had no need for it, but Ye Feng did not take out the Ming Jin liquid from the center of his eyebrows as before, but let it be stored in the zài spirit sea.

He still remembered that after the first transformation, the feeling of weakness from the depths of his soul, the weakness of his whole body, the darkness in front of his eyes, and the fainting at any time. And this time, although there is also a sense of exhaustion, it is obviously not that heavy.

After resting for a while, Ye Feng took out the cultivation bead and entered the cultivation state again, perhaps because the interval was too short, this time the time to absorb energy was even shorter, only a few minutes, the weaker the soul energy became, and he could only stop temporarily.

"Ye Feng, what is the conversion rate of Ming Jin Liquid?" Du Jingyan's voice came from his ears. Ye Feng breathed a sigh of relief, fortunately he was careful enough, this woman was really monitoring him at any time.

"About five cubic meters. Ye Feng said calmly.

"You have a light brain in your room, which you can use when you are resting. After Du Jingyan finished speaking, there was no more sound.

"Oh...... Thank you......" After Ye Feng finished speaking, he patted his face, and during this time, he said this sentence the most.

In the cockpit, the spirit showed a satisfied smile: "It seems that it is not bad, his void spirit is very good, and the purification ratio of five to one is at least the best choice." ”

"The soul energy is too bad. Du Jingyan shook her head and said, Ye Feng's purification efficiency is still high, but it is a pity that the time that can be worked every day is too short.

Switching to a slightly stronger blending apprentice can purify at least one drop of Mingjin liquid a day. Of course, not all apprentices have such abilities, everyone's ethereal spirit is completely different, even if they are all heart spirits, there will be too many differences in many details.

Although soul gold is scarce, as long as you are willing to put your mind to it, you can always find it. However, there are very few void spirits that can extract the golden liquid. Not to mention an ordinary deployment apprentice, even Du Jingyan herself does not have such ability. Otherwise, why bother to snatch Ye Feng to his side?

"Yan, your bid seems to be too low. A drop of gold liquid is worth at least three thousand spirits. ”

"Hmph, it's a lot, one spirit a day, even those guys who come out of the four stars in the sky, they may not be able to earn it. Du Jingyan is like a blood-sucking capitalist, and she still feels that the price she gives is too high.

Of course, with her ability, this little spirit is nothing at all, she just doesn't want to give Ye Feng too much. Such a person, after two or three years, has accumulated enough Mingjin liquid, it is better to send him back to the four stars of the sky.

"Light Brain...... Where is the light brain?" Ye Feng turned around his cabin five or six times, there were many facilities here that he had never seen before, but where was the light brain? He didn't see any equipment similar to the light brain.

"It can't be this thing. Ye Feng was beside the bed, found a crystal pillar, and stretched out his hand.

There are four of them in the room, and I don't know what they are for? Each crystal pillar looks similar, but the position is different, and there are different colors circulating inside. The one in front of me is red.

"Stupid, that's a life-saving system, do you want to fly out of the fixing eye? Du Jingyan's voice came from his ears.

"Oh...... Thank you......" Ye Feng replied expressionlessly, and replied very casually, his heart rolled over, on this fixed eye, Du Jingyan was really everywhere, when she went to the toilet, did she peek?

The table was large, and on the left side of the room, a large deck chair, looked very comfortable. In fact, lying on it is indeed really comfortable, Ye Feng has tried it once before, and it feels better than the bed.

After looking for a while on the table, sure enough, there was a green button, and when I stretched out my finger and pressed it, a green crystal pillar rose up on the table.

"Why are they all pillars?" Ye Feng muttered to himself, reaching out to hold the crystal pillar, but unexpectedly, as soon as the crystal pillar was in his hand, it spread along his fingers like mercury, wrapping Ye Feng's whole person in a moment.

"Damn...... What is this. ”

"Stupid...... This is the brain, lie on the chair, and study it yourself. Du Jingyan's voice came from his ears again.

Ye Feng has heard of this name, this thing is the direction of the Sky Four Star Light Brain Exhibition, it is said that there is already a real room product, if you want to fully promote it, it will be possible at least a hundred years later. Unexpectedly, there are already mature and usable physical objects here.

Ye Feng's whole body was wrapped in a layer of green, but he didn't feel any discomfort, lying on the chair, his eyes changed, and he seemed to have entered another space.

"Virtual reality technology ......" Ye Feng looked at the changes in front of him, but he was not much surprised, after all, the virtual reality of the four stars in the sky has begun to be applied, but the effect is not good. At least power armor training has no practicality in virtual reality, not only lacks the realism of gravity sensing, pain system and force feedback, but even the realism is much worse.

Skyrim Four uses virtual reality, which can only be played and used to train power armor fighters, and the effect is really poor. No matter how good it is played in virtual reality, when you really use power armor, it becomes a mess again.

The virtual reality space in the light brain is not too big, there are more than a dozen rooms, dozens of doors, and each door has a password, and now Ye Feng can only enter one of them, and the sign hanging on the room reads, Material Directory Room.

It is a library with dense pop-up books. Ye Feng took out a copy and clicked on it, and the content of the book was presented in front of Ye Feng in a three-dimensional way. There are texts, pictures, and videos, with detailed explanations.

"How can there be so many contents in one book?" just a casual flip was enough to surprise him, there were at least thousands of such books in this library.

Ye Feng has not studied the optical brain, and he also knows that the amount of information stored by ordinary personal optical brains is limited. If it is replaced by the light brain in Ye Feng's house, such books can only be stored about ten at most.

"Basic matter, biology, plants, minerals, liquids, energy, souls?" Looking at the classification of materials on the rows of bookshelves, Ye Feng's eyes were all flowers.

"That's a lot...... When will I be able to finish reading it?" Ye Feng groaned, his IQ is not high, and his memory can only be regarded as average, a normal high school textbook, he can memorize it dozens or hundreds of times. But the content of every book here is hundreds of times that of a high school textbook, and even if you read it all over again, it will take a long time, let alone memorize them all.

"Hmph, it's so easy for you to be a blender, these are just basic materials science, and only after memorizing everything backwards can you learn advanced materials science. Sure enough, Du Jingyan is everywhere on the fixed eye, and Ye Feng's self-talk in the light brain can't escape her ears.

"So much content, can you recite it all?" Ye Feng couldn't believe it, this was too much, even if Zhang Kuangshi came, I was afraid that it would take decades.

"Hmph, let's dream, basic material science, basic blending, blending psionic energy application, basic blending principle, and blending equipment are called the five basic subjects, and these five subjects, all of which are completed, are eligible to become blending apprentices. Du Jingyan said angrily, he is an intermediate blender, this kid actually doubts his ability?

"Are you an apprentice?" Ye Feng asked curiously.

"Stupid...... Yan is an intermediate blender, can he compare with an apprentice?" This time, even the spirit body couldn't help it, and scolded in Du Jingyan's tone.

"Oh...... Thank you......" Ye Feng replied casually, and after finishing speaking, his face changed and he smiled bitterly. Damn...... What is there to thank for, during this time, I was really played miserably by Du Jingyan's girls, and it has become a habit.

The basic material category is the simplest, with only ten books in total. Open the first book, a string of words jumped out, this is the general outline of the basic material materials, a rich male voice, in an extremely nice interstellar lingua franca, constantly explaining.

"Basic matter, is the universe space, the purest substance, most of which belong to the classification of energy matter, a small part of the physical matter, this kind of matter, extremely difficult to obtain, human utilization of it, very low, even if occasionally get a little, but can only be used for research, due to the limited quantity, the research value is not high......

The deep baritone explains, from all aspects, on the existence of the base substance, and the importance of the base matter. Such an important thing, human understanding of it is also the least of all the material classes, and almost few can be applied. However, all the basic materials that can be applied can be called high-grade material materials, and the lowest grade can also reach S level.

Ye Feng had seen the materials in the cabin before, among the many storage cabinets, there were from F-level to C-level, but none of them above C-level could be seen, and S-level should be a better material over A-level.

Then looking down, Ye Fengxian, this set of basic materials and materials is more like a basic astronomy tutorial, and there is not much content to talk about materials.

Until Ye Feng began to breathe, he only read less than one-tenth of this book, you know, the content of this book is more about the various reasons for the appearance of natural stars, as well as the matter and energy that may be formed under different conditions. There is not much content that Ye Feng needs to memorize.

Of course, seeing that there were thousands of books in this library, and this was only one of the five courses that the apprentices had to learn, Ye Feng had already given up, he knew very well that with his own intelligence, if he wanted to learn all of them, maybe his grandsons would get married.

If you really want to learn, when you die, you may not be able to become a deployment apprentice. Ye Feng didn't have that much time to waste on reading. In his previous life, Ye Feng didn't like to study very much, he preferred to control the power armor and wield a saber to fight.

"Slept...... Good night...... "Ye Feng withdrew from the light brain, lay on the big bed, and fell asleep in a blink of an eye.

In the dream, Ye Feng was in a wonderful space, and in front of him was a towering tree that was not high, and in a very high place, among the leaves, there were several huge streamer fruits.

"This ...... It looks so familiar. Ye Feng patted his forehead and finally remembered. When he walked through the crack in the space, he hallucinated, and wasn't it the same tree he saw at that time? He still remembered that there was a chaotic creature dancing in front of his eyes, and he didn't know what it meant.

"Big tree, messy, huge streamer fruit...... Ye Feng's eyes were dull, why did he have an extremely familiar feeling?

Ye Feng walked under the big tree, stretched out his hand to touch the big tree, and a pleasant feeling passed from the tree pole along Ye Feng's hand.

"I'm ...... Is this thing alive?"

"Bah, bah, bah...... Of course the trees are alive, I mean, you have feelings?"

A more pleasant feeling was transmitted, and there was a hint of ridicule mixed with it, as if he was laughing at the stupid things Ye Feng had just said.

"Okay, you're alive, you're happy, I know, who are you......" Ye Feng spoke to a towering tree like a fool. In front of this tree, Ye Feng's height was like an ant facing a mountain, completely disproportionate.

A book popped out of the tree pole and opened it in front of Ye Feng, it was the first volume of the basic material class that I saw in the virtual space today.

"This ...... What does this mean?" Ye Feng flipped quickly, and the part he had finished reading until today was word-for-word, and a lot of notes appeared in front of Ye Feng's eyes, while the part that Ye Feng didn't see was blank.

"This ...... This is too damn **? I can remember as much as I see? But where can I find you? I have to dream every time? Or do I pass through the spatial crack?" Ye Feng was a little dizzy, this tree actually has a memory function, it is definitely a good thing, Ye Feng knows very well that his memory can only be regarded as ordinary.

The evolutionary process of the four-star human beings in the sky still needs to be improved, and the brain capacity is limited, and remembering the important content will naturally forget the unimportant content.

Ye Feng knocked on his head and muttered to himself, "Big trees, fruits, and chaotic creatures...... This...... Isn't it?"

Ye Feng tried his best to stimulate himself, and he didn't know how long it took, and finally woke up from his dream. His eyes didn't open, and he sank directly into the spiritual sea.

The empty sea of spirits, the palm-high spirit plants, and the chaotic void spirits......

Compared with the scene in the dream, the difference is too far, but these three things, if magnified countless times, are eight points similar to what they saw in the dream. As for those strange-looking creatures other than the mess, Ye Feng already had a guess in his heart, but he didn't dare to be sure.

Do I see the future of the Spirit Sea?

Ye Feng's consciousness floated in front of the spirit plant, and he reached out and carefully stroked the main rod of the spirit plant, which was too fragile, as if it would break at any time.

"Lingzhu Lingzhu, where is my book?" Ye Feng's mind kept transmitting this information.

The ethereal spirit floated over, one tentacle attached to the main rod of the spirit plant, and dozens of other tentacles, weaving a rudimentary-looking book in the air.

Although it looked a little strange, Ye Feng still recognized it, this was the cover of the book he saw today.

"I want to see what's inside. Ye Feng once again conveyed his message.

The tentacles kept changing, and after a few seconds, the content of the first page appeared in front of Ye Feng's eyes, full of words, no sound, and even the words seemed very rough, and they needed to be carefully identified to see what was written.

"Turn to the last page. Ye Feng gave a new order.

The tentacles weaved quickly, and after a few seconds, the content of the last page appeared in front of Ye Feng's eyes. This is a picture, compared with the virtual network, the use of virtual stereoscopic technology to display the simulation picture, this thing in front of you, if you are not familiar with the person, you can't even see what kind of play it is.

"Really...... It's actually true...... "Ye Feng's eyes are straight, do spirit strains and void spirits still have such functions?" I haven't heard of them before.

"Find the total number of S-class base materials. Ye Feng's eyes rolled, conveying a new message. This time, instead of asking to turn to a certain page, you will specify the search information.

Now he has only read one of thousands, and it is only a small part of the book. The more content you watch, the more you need to memorize. Even if the spirit strain can copy all the contents, it will be a big problem to find them.

Ye Feng knew very well that with his current intelligence, even if he took the open-book exam, he was afraid that he would not be able to escape the fate of zero points. Not to mention the blender, even the knowledge that the blending apprentice needs to master is massive.

And this knowledge does not mean that you can forget it after reading it, but it may be used at any time in the future work. If it's just stored in the light brain, anyone can become a blender.

This time, the ethereal spirit's reaction was much slower, until the spirit strain kept shaking for a while, and the ethereal spirit's tentacles moved again, weaving an interplanetary text.

At present, the content of the book shows that the total number of known S-class basic materials is one hundred and eighty-eight.

"Damn...... ......" Ye Feng clenched his fists and waved vigorously. It's a pity that this is the Linghai space, and what is stored is only Ye Feng's consciousness, without a body, even if he clenches his fists, it is only his own feeling, let alone wanting to make a sound.

In a spaceship, there is no way to tell time by light. After Ye Feng got up, he found something to eat, dealt with it, and came to the storage cabin again to start today's work.

There is a lot of food on the yacht, but the taste is very poor, similar to the nutrient solution of the apocalypse, although there are many flavors, there is no feeling of fullness after eating, but the nutrition is sufficient.

The multi-function recorder on his wrist showed that he slept for six hours, slightly more than usual. However, in Ye Feng's feelings, except in the dream realm, he was studying the spirit beads and void spirits in the spirit sea, and he almost never closed his eyes.

Fortunately, the soul energy has been replenished a lot, indicating that the effect of rest is not bad. Filled with a box of soul gold, Ye Feng began today's extraction work, this time it took a little more time than yesterday, indicating that the soul energy replenishment was still somewhat insufficient.

In the spiritual sea, there was another drop of suspended Mingjin liquid.

Today's work was completed, Ye Feng was not in a hurry to use the cultivation beads, the soul energy in his body seemed extremely weak, and for the time being, he couldn't think of a way to recover quickly.

In the back cabin, he found the metal he needed, replenished a large amount of metal energy, and looked at the material bead in his hand, Ye Feng smiled with satisfaction, consuming so much metal, the energy in the bead should be enough for him to use the golden spirit warlock.

In the cockpit, the corners of Du Jingyan's mouth curled slightly: "This little guy is really greedy." ”

'It's normal, he's insecure here. The spirit replied.

"How far is it?" Du Jingyan asked boredly, because the time of this space trip was too long, and there were many plans for her, and all the real materials she brought out were consumed, and she couldn't even do it.

"The wormhole provided by Du Tianlin is very good, it can save a lot of time, and in about four days, you can reach the fixed star. ”

"It's great that I can finally go home, I'm really tired this time. Du Jingyan stretched her waist, here, she doesn't need to care about the image, how comfortable she is.

"Don't be too happy, our real materials are basically exhausted, the finished product also needs to be auctioned, and new materials need to be purchased. With Mingjin liquid, you have to prepare all kinds of pupil fluid, and there are many ingredients that are needed. The spirit reminded.

"I know, in addition to the split pupil preparation, I'm not sure about the other kinds, let's mix the split pupil first, with this thing, your strength has increased again. Du Jingyan said with a smile, the mixtures related to the pupil technique are all relatively advanced, the worst split pupil is also an intermediate mixture, and several other mature preparations are all high-grade blends, and the current Du Jingyan cannot be blended.

Hitomi is a rare technique, with a majority of support spells and a small number of attack spells. Although the power is not too strong, the stealth is really good, and it is invincible for sneak attacks. Anyone who knows the art of the pupil, no one dares to underestimate it, God knows when it will be attacked.

The use of the pupil technique is completely different from other spells, before the attack, there is no sign at all, and the degree is fast, and the person with a slightly poor vigilance is easy to be hit.

There are many advantages to the pupil technique, but it is extremely difficult to practice. Not only is the cultivation method of the pupil technique extremely rare, but it must be combined with the corresponding preparation preparation, all by its own ability, no matter how powerful the martial artist is, he will not be able to practice the pupil technique.

After all, the pupil technique not only requires the cooperation of the spirit body, but also cultivates the eyes of the human body. No matter how powerful a martial artist is, some parts of his body are difficult to cultivate too strongly. The eyes are the weakest link in this, no matter what kind of creature it is.