"Alright, now let's think about what to do with these Nether Dark Woods, right?"

The Blood Demon King saw that Meng Yu had not broken the root of the Netherworld Black Wood, so he asked. Although these black trees are rare treasures, they are also harmful, and if they are allowed to grow, this Blood Demon Valley will still be a purgatory on earth after all.

"Let's go. ”

Meng Yu didn't say much, the Moon Demon King and the two entered the gap between the two giant peaks again, and after the wood marrow of the Netherworld Black Wood was extracted by Meng Yu, it was no longer so cold here.

The lion cub is small and nimble, and has not been active for a while. He found it a bit annoying, but it was also full of freshness.

The little lion trotted all the way, and was the first to get out of the crack, and after a while, Meng Yu and the Blood Demon King also came out. At this time, I felt that the spiritual power on the side of Dafeng was much more normal, and the Netherworld Black Wood would not mature again in a short period of time, maybe those Blood Demons with low strength or who had not undergone mutations for a long time could slowly return to normal on their own.

It's just that this is not a long-term solution, as the Blood Demon King said, there is still a solution. Meng Yu took out several small flags, which were not large, but were very delicate and made of silver and iron.

"You're a Spirit Array Master?"

The Blood Demon King asked in surprise, seeing these little flags, he had already guessed what Meng Yu wanted to do.

Yes, Meng Yu is just going to arrange the next spirit array. He couldn't bear to destroy the Netherworld Wood completely, so he had to find a way. Now Meng Yu just wants to set up a simple spirit array here, this is not complicated, he only needs to seal this gap so that the cold qi cannot penetrate, then the spiritual power in the Blood Demon Valley will naturally be normal.

Meng Yu shook his head, he wasn't a spirit array master. This kind of profession is extremely unpopular, and it is much rarer than that of an alchemist. It's not that the Spirit Array is useless and the Spirit Array Master is not valued, but because the Spirit Array Master has been extremely rare and lacks inheritance since ancient times. Not only that, but if you want to become a Spirit Array Master, you have to divide most of your time and mind, so it will be difficult for you to make achievements in cultivation.

In addition, even if you have a certain level of attainment in the spirit array, it often takes time to arrange this kind of thing, and it is difficult to really come in handy when fighting between monks, and for many reasons, most people are reluctant to spend time on the spirit array.

Meng Yu naturally didn't know how to set up the formation by nature, this was because the monkey was trapped by a spirit array powerhouse in the first place. The monkey also said that many of the things he gave Meng Yu belonged to the spirit array master, and even the divine monkey himself didn't know what they were.

In that ring, there is a secret book of arrays. In fact, it can't be said to be secret, because it is easy to understand and very simple, but it summarizes the spirit array all the way very incisively, and there are many witty words.

Meng Yu had spent time researching, and like this simple formation of isolating aura, many people could arrange it as long as they dabbled in it.

These small flags were used to arrange the spirit array, Meng Yu first planted them on the ground in different directions, and then he took out a few pieces of the wood pith of the Netherworld Black Wood, and used his spiritual power to urge them to activate them again, causing the cold qi to leak out.

The little lion screamed and ran away as soon as possible. Meng Yu put the wooden pith away, then stepped aside, and planted the last silver flag in one direction.

"Buzz"

The formation was activated, and at that moment, I felt that the cold aura of the Netherworld Black Wood was blocked and no longer leaked out. Meng Yu smiled, very satisfied with this result. This was the first time he had used this method, and although it was a simple spirit array, it still had to be verified to be more secure.

Now it turns out that this method is completely feasible.

Meng Yu dissolved the formation, put away the wood pith, and then began to arrange in front of the two giant peaks according to this method. The reason is the same, but the scope of the arrangement this time is larger, he doesn't have many silver flags, but the formation is also very simple, and it doesn't take much. Of course, the high-level spirit array, the current Meng Yu can't arrange it.

After Meng Yu finished arranging, he proposed to the Blood Demon King to find a quiet place, because Meng Yu wanted to refine the pill.

Finally, on a mountain peak, Meng Yu set up a Dan furnace, in fact, there was a Blood Demon King himself to protect the Dharma, and there was no need to find any safe place in this Blood Demon Valley.

This was the first time that the Blood Demon King had seen the young man's alchemy, although he didn't know the trick, but the Blood Demon King was shocked, because he knew that even if the alchemist refined the most simple pill, the success rate was only about sixty percent.

And this Mengyu Dan age is so short, but the Cheng Dan rate has reached ninety percent, and there is almost no waste Dan. The Blood Demon King was a little impressed at this time, Meng Yu knew too much, he was glad that he didn't directly suck the young man dry at that time, otherwise a wizard would be destroyed in his hands.

In fact, what the Blood Demon King didn't know was that Meng Yu was refining some top-grade second-grade pills for him, which was also the limit that Meng Yu could reach at the moment. If it is replaced by a pint of pills, Meng Yu can even increase the rate of pills to ten percent.

Meng Yu had a lot of pills on his body, but there were many categories, and there were not many pills that could be used to temporarily suppress the cold power of the Blood Demon King and alleviate the pain of itching.

Among the medicinal materials he brought, there was only a limit to what could be refined into this elixir, and although Meng Yu was anxious, there was no way to do it, and he couldn't waste it. He took every step very slowly and carefully, which raised the Cheng Dan rate to ninety percent.

In this way, after a whole day passed, the medicinal materials that Meng Yu brought were also exhausted, but these pills were enough for the Blood Demon King to use for a year or two, and if he wanted to completely cure it, it would have to wait until he could refine the elixir.

Subsequently, Meng Yu began to refine some first-grade pills, which were mainly used to relieve the cold in the bodies of other creatures in the Blood Demon Valley.

Simply, this kind of consumables Meng Yu brought a lot and it was not expensive, he was a little distressed to refine those second-grade pills for the Blood Demon King, but this was also an investment, and in the future, the Blood Demon King owed him a great favor.

Not only the Blood Demon King, but two days later, Meng Yu handed over all the first-grade spirit pills he had refined to the Blood Demon King, and after those creatures returned to normal, they all wanted to thank Meng Yu for his love.

Meng Yu didn't have to deliberately deliver and distribute, with the status of the Blood Demon King, when the time came, those creatures would naturally come here to get the medicine.

At this time, Meng Yu's eyes were blood-red, although he had rested several times in three days, he was still tired, even the Blood Demon King admired his perseverance, and he was shocked that a monk who had just entered the human spirit realm had such strong spiritual power.

After the arrangement, the Blood Demon King personally sent Meng Yu to the Blood Demon Valley, it was not very peaceful here, he didn't want Meng Yu to be harmed by other Blood Demons or living beings, he also needed the boy to help him solve his own problems completely.

Obviously, this kind of escort was necessary, and along the way they met the Blood Demon several times. Many Blood Demon people don't know the Blood Demon King, they just know that there is a powerful being in the waterhole that cannot be provoked.

Now the Blood Demon King's aura is restrained and he can't see the realm at all, and when he sees the Blood Demon King and a few others, those powerful Blood Demon people will naturally not let go of the good meal.

Those blood demons are very unlucky, all the greedy blood demons were dealt with by the Blood Demon King, and then handed over the blood crystal to Meng Yu, he already knew why Meng Yu came, this should be a gift to the young man.

Meng Yu smiled bitterly, this is really a no-brainer, he doesn't think it's cheating, and being able to use external forces is also a means.

The Blood Demon King didn't want to see people from the outside world for the time being, so he sent Meng Yu back to his waterhole after sending Meng Yu to the Blood Demon Valley. And Meng Yu didn't stay, he was in a hurry to go back to the Medicine King Valley now, and he didn't know what the situation was.