After making a small mistake, Ye Zan changed the way he ingested the things in the blood veins, and changed into a long rope with claws in a variety of ways, and really flew towards the depths of that blood vessel. In the blink of an eye, the long rope had already flown out of it, and the claws at one end of the long rope grabbed a handful of red sand, and then floated to everyone's eyes.

"It's something, it looks pretty good. Lin Mumu approached and took a piece of red sand from the flying claw and looked at it carefully. This red sand looks like small red pearls, or beads polished with agate, with a crystal clear appearance and a faint fragrance.

"Well...... Ye Zan had just retrieved some information, and the expression on his face suddenly seemed a little strange, so that he didn't say the answer immediately.

The memory information that Ye Zan obtained from the Outer Demons was only stored in the database of the auxiliary chip, not directly added to the memory area of his brain. After all, the memory in the memory area of the brain is related to a person's temperament and habits and many other factors. If you insist on adding other people's memories to your own brain memory area, you will definitely be affected.

Therefore, regardless of whether it was the memory information of the Outer Heaven Demon or the memory information of other people that Ye Zan had obtained before, it was all stored in the database of the auxiliary chip just like computer storage. And this resulted in the fact that when Ye Zan needed to use certain information, it was impossible to see something to stimulate his memory, but to search in the database by searching.

As for the red sand found in the vascular cave, Ye Zan also went to the database to find information related to it after seeing and taking it out. The process is of course fast, but it can take a little bit of time, especially if it's not a ready-made result.

"Brother Ye, looking at your expression, isn't this thing a good thing?" Seeing Ye Zan's performance, Lin Mumu suddenly asked with a suspicious expression.

"Haha, it's actually nothing, of course this thing is still a good thing. It's just that you may not want to know the origin. Ye Zan shook his head with a smile, and turned Ruyi into a basin, just holding all the red sand caught out in it, completely displaying it in front of everyone's eyes.

Lin Mumu was obviously very dissatisfied with Ye Zan's response, put the red sand to his nose and sniffed it carefully, and urged Ye Zan: "Brother Ye, you should go on! What is the origin of this thing, why don't I want to know? Could it be that this thing is caused by some disease of the evil demon outside the heavens? That's nothing!"

"Fellow Daoist, since you know, let's talk about it, the old man also wants to know how this thing came about. Dao Yuan Supreme also couldn't hold back his curiosity, and followed Lin Mumu to ask Ye Zan.

Ye Zan glanced at everyone, in fact, not only Dao Yuan Supreme and Lin Mumu wanted to know the answer, but the faces of the other people were also full of curiosity. Of course, he didn't want to hide it from everyone, he was just joking to arouse people's appetites, and he still had to talk about it in the end.

"Well, since everyone wants to know, I'll just get to the point. Ye Zan's helpless expression seemed to regret that his kindness was not accepted by everyone, and then pointed to the pot of red sand and said to everyone: "The origin of this thing is actually not unusual, haven't everyone seen it before, is there a nest of insects living in this vascular cave?"

"This thing has something to do with insects?" Lin Mumu frowned when he heard this, and then he showed a sudden look, threw the red sand in his hand back into the basin, and said to Ye Zan: "This thing can't be that, right?" Brother Ye, don't talk about it, I don't want to know the answer!"

Ye Zandu has already mentioned insects, so the origin of these red sands actually doesn't need to be continued. Everyone who has a little common sense of life can actually guess some at this time, what is the relationship between this red sand and insects.

However, I was urging to know before, but now I can't listen to it! Ye Zan didn't pay attention to Lin Mumu's words at all, grabbed a handful of red sand with a wicked smile, and continued: "Mumu should have guessed it, but I'd better explain it to everyone. Those bugs live here, and it doesn't matter what happens to them, at least at first they will definitely eat and drink. And it doesn't matter what it is, as long as it's not the legendary Pixiu, you have to eat it...... So, this thing is actually the excrement of those bugs, and to put it bluntly, it's bug. ”

"Ah, Brother Ye, why do you want to say it so clearly! It's really ......" Lin Mumu screamed, rubbing the hand that had pinched the red sand back and forth on his body, and said to Ye Zan with resentment: "Brother Ye, you did it on purpose! I didn't tell us at first, but I really took it and ...... Smelled it, but luckily it didn't lick ......"

Of course, among the crowds, there will be Lin Mumu who will make trouble.

When the others listened to Ye Zan's answer, although they felt a little uncomfortable in their hearts, they were not as exaggerated as Lin Mumu. After all, it doesn't matter where the red sand came from, at least it still looks clean and doesn't smell disgusting. More importantly, judging from the power fluctuations emitted by this red sand, it definitely has great application value.

"Although this thing is the excrement of insects, those insects grew up drinking the blood of demons from outside the world. It's like a worm in a fruit, but it looks like it's in the diaphragm, but it's actually not as disgusting as it seems. Ye Zan explained to Lin Mumu with a smile, of course, for others.

People have a natural aversion to insects, and they are accustomed to equating them with dirty, thinking that insects are a kind of dirty and disgusting existence. But if you think about it carefully, the insects born in the rice noodles are equivalent to growing up eating the rice noodles eaten by people all their lives, so where can they really be dirty? There are also bugs in fruits, you eat fruits, people eat fruits, and people have nothing else to eat except fruits, how dirty can it be.

Now, of course, it's not about bugs, it's about bug excrement. But in fact, although human beings instinctively reject excrement, they also have a wide range of applications for all kinds of excrement, the most common is the so-called farm fertilizer. To make fertilizer, after all, there is a layer in the middle, at least it can be said that the crops filter the excrement. Then, the excrement used in some prescriptions is really "".

"Okay, okay! Brother Ye, you're right. Let's not talk about excrement, let's just talk about what this red sand is for. Lin Mumu said helplessly.

"Well, this thing, is it...... I won't say how it came about, anyway, it can be regarded as the blood crystallization of the demon outside the sky. Moreover, after being decomposed and filtered by those bugs, the power of those outer worlds was filtered out, and what was left was a relatively pure life force. To put it more directly, this thing can be used for alchemy, especially to refine elixirs that increase longevity or repair the body. Ye Zan did not hide it, and talked about the function and value of this red sand, and did not deliberately belittle and pick up cheap.

"In that case, this thing is really a good thing. Dao Yuan Supreme nodded when he heard this, and also had a general assessment of this red sand in his heart. Even if their Heavenly Machine Pavilion is based on the inheritance of mechanical arts, they are no different from other cultivators in terms of lifespan, who doesn't want to live forever.

According to Ye Zan, this red sand can be used to refine the elixir of longevity, although the Dao Yuan Supreme and the Divine Machine Supreme are not needed, there are still so many disciples in the Tianji Pavilion. You know, in some cases, being able to live a few more years can have a significant impact on a monk's life. Perhaps, a person is only a few years away from breaking through the realm, and he can go further in these years, and he can only die in a few years.

However, Tianji Pavilion is based on mechanical techniques, so naturally there is no achievement in alchemy. Therefore, even if they were given a part of the red sand, it would be difficult to change it to the pill they wanted. What's more, this thing is a thing from the demon outside the sky, and the existing Dan recipe may not have a record of its use, so it is necessary to deduce a suitable Dan recipe again.

"Fellow Daoist, my Tianji Pavilion is good at mechanical arts, but I don't have any inheritance of alchemy. The old man heard that in addition to refining thousands of miles of spirits, Daoyou also has extremely high attainments in the way of alchemy. Therefore, if he can, the old man hopes that he will have the opportunity in the future to ask Daoist friends to refine a few furnaces of pills for my Tianji Pavilion. "Dao Yuan Supreme didn't care much about face, not only did he calmly expose his shortcomings, but he also wanted to make an appointment with Ye Zan in advance to refine the pill.

"Oh, seniors don't have to be like this! With the relationship between you and me, as long as the seniors need it, what is the point of refining a few furnaces of elixir. Ye Zan promised very happily.

Of course, the specific details are not yet time to be discussed, after all, everyone is still in the forbidden land. Moreover, until now, they had only explored one of the leg bones of the Outer Demons, as well as a blood vessel in the legs. The body of the Outer Heaven Demon is so huge, what they should be thinking about now is not what alchemy and refining treasures, but how to move these things back.

Ye Zan still started the pot of red sand on behalf of everyone, and then continued to explore this vascular cave with everyone. And because of the discovery of red sand, when everyone explores again, it can be regarded as having a specific exploration goal. Moreover, it is basically certain that in this vascular cave, there should be no other things other than red sand.

After some exploration, everyone returned to the entrance of the Vascular Cave, and sure enough, they only found a large amount of red sand from inside.

This red sand, after the death of the demon outside the sky, the insects devoured the residual blood in the blood vessels, and excreted the life crystals. After the body of the demon outside the world was torn apart, most of the blood must have flowed away, and the remaining residual blood was filtered by the insects, and there was actually not much red sand left.

However, this more and less, mainly depends on how to compare, at least from Ye Zan's side, it is already a lot to be able to collect more than ten kilograms of red sand. Judging from the life force in the red sand, even if it is not refined, just a small pearl-like red sand is enough to increase a person's longevity by ten years. More than a dozen kilograms of such red sand are only the income from this part of the body, which cannot be said to be less.

Moreover, Ye Zan and the others also thought of a question, what about the blood that flowed out of the stump in the first place? Before, when they first came in, they were attacked by a large number of black long worms, and now they also know that those bugs are the same as the bugs in the vascular cave. In other words, the long black worms outside were not only flowing out with the blood, but also should have fed on the blood that flowed out.

is still the same sentence "If you eat it, you have to pull", the black worm outside eats the blood of the evil demon outside the sky, and it should also excrete this red sand. Therefore, if you explore this area carefully, it should be very possible to find the nests of those black long worms, and then find their "toilets".

"In my opinion, let's go to explore the other remnants of the demons outside the sky first, and the red sand that may exist outside will not be too late to clean up together. After thinking about it, Ye Zan said to the Dao Yuan Supreme and a few others.

"Well, according to what Daoyou said, those things can't run away anyway, so it's better to eliminate the threat first. Dao Yuan Supreme said very approvingly.

A bone, a mud monster with bone marrow mutations. A blood vessel with disgusting black parasites. This is just a small piece of the body of the Outer Demons. So, what kind of mutant monsters will be in the larger, other parts of the body?

Therefore, if you want to really pocket these things, you still have to eliminate those possible threats first. It's like fighting a war, you have to defeat the enemy before you can count the spoils. If you put the enemy aside and run to count the loot stupidly, then you really don't know how to write the word "death".

"Okay, then let's go through the easy and then the hard, first search and clean up places like this, and then clean up the main torso parts and heads. Ye Zan simply stated his exploration plan.

So, according to Ye Zan's plan, everyone began to continue to explore this forbidden land and explore the remnants of those demons outside the sky. Moreover, in the next exploration, the group mainly cleaned up the monsters, and basically stopped collecting anything. Anyway, when it's completely cleaned up, these things won't run away, and then the whole rock shell will be peeled off and removed.

Although it is said that it is easy first and then difficult, the body of the demon outside the sky is so huge, and it will take some time to clean it up. Ye Zan and his entourage cleaned up the "mountains" one by one, and they had to take proper rest in the middle to maintain their combat strength, so as not to encounter unexpected things and be difficult to deal with. Therefore, it took more than ten days for Ye Zan and the others to finally clean up those small remnants and come to the torso that was broken in two.

"The left part should be the chest part of the Outer Heaven Demon, and the right side is the lower abdomen part, which part should we explore first?" Ye Zan asked everyone.