"Hey, this is the four-grade 'Doom Elixir'." Qin Ziling continued to count the pills, and found that there was a bottle containing a four-grade "Doom Elixir", and he couldn't help but be quite surprised.

The four-grade "Doom Elixir" is a very precious elixir even if it is placed in the Jiuxuan Sect, and it is even more difficult to find a pill in the outside world, and it has no price.

Qin Ziling's best "Doom Elixir" at hand now is only three grades.

The first is that he has not yet found the medicinal materials to refine the four-grade "Doom Elixir", and the second is that the fire dragon did not have the ability to refine the four-grade "Doom Elixir" at that time.

Now that the fire dragon has recovered a lot, it has been able to refine the four-grade "Doom Elixir".

As for medicinal materials, with Qin Ziling's current strength, it shouldn't be a big problem to find one.

However, it is naturally a good thing to get a precious four-grade "Doom Elixir" for nothing.

"What is this?" Qin Ziling put away the four-grade "Doom Elixir", and his eyes were quickly attracted by a huge black and cold box.

Qin Ziling opened the big box.

A cold and decaying breath of death came to his face.

I saw that there were some strange medicinal herbs and some dark pills in the box.

At first glance, these medicinal herbs and pills are not things that normal people use to improve their cultivation.

There is also a brocade box in one of the corners of the big box.

Qin Ziling opened the brocade box, and there was a scroll made of exotic animal skins inside.

Qin Ziling opened the scroll, and his heart couldn't help but shake slightly.

What is recorded in this scroll is the "Secret Technique of Hell Devouring Life" performed by Yan Gu.

According to the book, it is recorded that there are ten layers of this "Hell Devouring Secret Technique", and Yan Gu has only cultivated to the third layer, and the exercises recorded in this scroll have only reached the fourth layer, and there is no more after the fourth layer.

Many of the medicinal herbs and pills in this big black box are some of the things that need to be taken when refining this secret art.

Qin Ziling quickly flipped through the "Hell Devouring Secret Technique" and couldn't help but be surprised and delighted.

What was surprising was that Yan Gu had such power when he cultivated to the third layer, and if he cultivated to the fourth layer, if the power of death suddenly broke out, I am afraid that he would be able to leapfrog the level and fight.

That is to say, once Yan Gu cultivates to the fourth layer, Yan Gu, who is a sixth-grade true immortal, can use this secret technique at the cost of qi and blood vitality longevity, and can fight against the seventh-grade true immortal.

It was just that he happened to have the means to restrain this Hell Devouring Secret Technique, and he also had the means to hide from the sky and the sea, so he killed Yan Gu.

If Yan Gu had discovered it earlier, changed his strategy, and used other changes in the "Hell Devouring Secret Technique" instead of fighting to the death with him, I am afraid that Qin Ziling would not have been able to kill him so smoothly, and maybe he would have to ask the fire dragon to come out.

The fire dragon came out to help, not only was it extremely costly, but the most important thing was that once the fire dragon came out, and if he escaped Yan Gu, it would be a catastrophe.

Therefore, if the fire dragon does not come out of the horse, once it is out of the horse, Qin Ziling must have 100% confidence to kill the enemy.

And if he cultivated to the fourth layer, once the combat power of the seventh-grade true immortal broke out, I am afraid that Qin Ziling and Yin Dye Yue would have to run away again.

There is a big gap between the sixth-rank true immortal and the seventh-rank true immortal.

Even if Yin Dye Moon had the Zixiao Thunder Staff in his hand, he was only a relatively powerful sixth-grade true immortal, not an opponent of a seventh-grade true immortal.

Of course, the more advanced the "Hell Devouring Secret Technique", the greater the cost of casting.

Happily, this "Hell Devouring Secret Technique" seemed to be a secret technique specially tailored for him and the five immortal generals.

He comprehended the way of yin and yang life and death, and cultivated the two immortal babies of yin and yang life and death, which can turn life into death and death into life, and the five immortal immortals will be dead things, giving birth to spiritual wisdom, and their original power is the power of death.

To perform this secret technique, Yan Gu needed to use his own qi and blood vitality to stimulate and urge, but the Immortal General would be able to skip this process and directly cast the Hell Killing Summon.

"The Great Age of Genes"

However, in order to cultivate this secret technique, it still takes a lot of time to comprehend and practice, and it also needs to have corresponding medicinal materials and pills.

No matter what, the Immortal General and Qin Ziling had a natural advantage in cultivating this secret method, and their progress would definitely be many times faster than Yan Gu's.

"It's a pity, there are only the first four layers of cultivation and casting methods." Qin Ziling closed the "Hell Devouring Secret Technique", which was quite regrettable.

Soon, Qin Ziling found another stone that was so dark that it seemed to be able to absorb all the light.

The stone was about the size of a large water tank.

"Heavenly Stone!" Qin Ziling couldn't help but be overjoyed.

Like the Chitian Xuanshi, the Heavenly Immortal Stone is also a mineral material for refining high-grade immortal weapons.

However, it is different from the Chitian Xuanshi, which is often born in the land of fire and yang, and is most suitable for refining fire and earth type magic weapons, because fire gives birth to earth.

Therefore, after Qin Ziling found the Chitian Xuanshi, he refined it into the Fire Crow Sword and the Wind Thunder Mountain Seal, and these two magic weapons were upgraded to high-grade immortal weapons, saving Qin Ziling from his long years of cultivation.

If the immortal weapon wants to be upgraded to a higher level, it can also be washed and warmed by the immortal owner day and night with immortal power, and the quality can be gradually changed, but this is the kung fu of the water drop stone wearing, which is very long.

The Heavenly Immortal Stone is often born in the land of cold yin, and is most suitable for refining ice and cold death type magic weapons.

Yan Gu's Black Hell Demon Knife and White Bone Claw were the magic weapons of the cold and gloomy side.

Qin Ziling once wanted to refine five immortal weapons for the five immortal generals, so the fire dragon had told him some materials for refining the Yin Evil Death type magic weapon.

"With this Heavenly Immortal Stone, and then return the Black Hell Demon Knife and White Bone Claw to the furnace, if you add some more mineral materials, it should be enough to prepare a suitable high-grade immortal weapon for each of the four of them and myself." Qin Ziling thought with joy in his heart.

In addition to this Heavenly Immortal Stone, Yan Gu also had several pieces of ore suitable for refining high-grade immortal weapons, but the volume was relatively small.

After Qin Ziling finished counting the ores, his gaze finally fell on a small black box in the corner.

This black box is made of Heavenly Stone.

Qin Ziling opened it, and there was a small white bone needle inside, and a little dark flame burned on the tip of the needle, which was the Nether Bone Needle that Yan Gu used to threaten and kill Lei Xiao.

As soon as Qin Ziling's divine soul got slightly closer to the Netherworld Bone Needle, he felt as if he was almost about to be frozen and burned.

"No wonder Yan Gu was extremely slow when he urged this Netherworld Bone Needle. It turned out that this Netherworld Karmic Fire was just the opposite of the Sun True Fire, the latter was extremely hot and the latter was extremely cold, and with Yan Gu's cultivation, he didn't dare to refine this Netherworld Bone Needle into his body for the time being, so he could only put it in the storage ring. Even when urging, you have to be careful not to set yourself on fire. ”

Qin Ziling thought to himself, and moved this Nether Bone Needle out of the storage ring.

After removing the storage ring, Qin Ziling thought about it, and used the Nether Immortal Infant to release a trace of Nether Death Power wrapped around the Nether Bone Needle, but as soon as the Nether Death Force touched the Nether Bone Needle, it melted like snow, and he needed to continuously input Nether Death Force in order to continuously drive the Nether Bone Needle.

"This Netherworld Karmic Fire is too cold and domineering, and with my current realm, I can't drive it as I want. However, when I can drive this Nether Bone Needle as I wish, this magic weapon will be very powerful. Qin Ziling thought to himself, and put the Netherworld Bone Needle back into the Heavenly Netherstone Box.

This treasure can't really exert its power now, so he can only put it on the shelf for the time being.