Now that half an hour has passed, Ren Xiaoyao has not found any elixir at all, except for finding some refining materials. At this time, Ren Xiaoyao couldn't help but be a little anxious, if he couldn't find the elixir that Guigu Daojun requested, according to Guigu Daojun's temper, Ren Xiaoyao would probably be more than lucky.

This burial lake was lifeless, and it couldn't survive any elixir at all. Ren Xiaoyao couldn't find it for a long time, so he couldn't help but guess in his heart, but guessing is guessing, Ren Xiaoyao is still looking for it seriously.

The dead air in the water of this burial spirit lake seems to be thicker in the center of the lake than in the lake water on the periphery of the lake.

The elixir that Guigu Daojun asked Ren Xiaoyao to look for was called Cold Blood Zhi, but Ren Xiaoyao had only seen it from the Lingzhu slip given by Guigu Daojun, and he didn't know the purpose of this Cold Blood Zhi. However, Guigu Daojun is from Zhongzhou and is a ghost cultivator, and the elixir he needs should be related to ghost cultivation**, in other words, it is also related to death qi.

Could Cold Blood Zhi be in the center of the Burial Lake?

Ren Xiaoyao thought of this, refreshed himself, and slowly walked towards the center of the lifeless Funeral Spirit Lake.

The farther to the center, the thicker the dead air became, and the visibility was even compressed to within two meters, and Ren Xiaoyao had to activate some more power of the Nine Yin Bone Umbrella to be safe at the bottom of this lake. However, although the visibility was compressed, Ren Xiaoyao's divine thoughts could still detect beyond the range of ten meters, and now some divine thoughts were slightly stimulated to detect the surroundings, and the surrounding ten meters were also clearly detected.

It should be almost in the center, there are no more monster bones, all black stones spread on the ground. These black stones should be just ordinary stones, but because they have been immersed in death for a long time, they can now faintly exude death on top of these black stones. If it was a ghost cultivator, these black stones should be able to be used to refine some low-level spiritual weapons, but for Ren Xiaoyao, they had no effect at all, but he still collected some black stones into the storage bag.

What's ahead?

After Ren Xiaoyao finally activated all the power of the Nine Yin Bone Umbrella, he could not advance more than fifty meters, and ten meters in front of him, Shen Nian detected a strange place. It was a hole, a black pitch hole about two zhang in diameter, and thick black water slowly poured out of this hole, and as soon as it came out of the hole, it quickly spread into countless black threads.

It seems that the reason why the funeral lake was formed here and was still lifeless was because of this black hole.

Ren Xiaoyao urged the Nine Yin Bone Umbrella with all his might, and carefully and slowly leaned over the black hole, wanting to find out. The dead air here is almost to the limit of the Nine Yin Bone Umbrella in Ren Xiaoyao's hand, if something happens, Ren Xiaoyao really doesn't know what to do. But such mysteries make the curious Ren Xiaoyao have to explore.

"Cold Blood Zhi!"

Ren Xiaoyao came to the edge of this black hole and wanted to explore around this black hole, but after walking a few steps, he found the coveted Cold Blood Mushroom, and there was not only one, but three. The cold blood mushroom was about the size of a basin, the shape of a lingzhi, the whole body was blood red, and it was crawling on the ground at the edge of the black hole, exuding an extremely cold force.

This Cold Blood Mushroom actually grew in such an environment, which had to surprise Ren Xiaoyao, and at the same time, his eyes were also hot for this Cold Blood Mushroom. Guigu Daojun only asked Ren Xiaoyao to bring back a thousand-year-old cold blood mushroom for him, but did not ask for the quantity. There are three cold blood mushrooms here, all of which are thousands of years old, keep one for yourself and hand over two to Guigu Daojun, in this way, Guigu Daojun should not suspect Ren Xiaoyao's private collection.

Thinking of this, Ren Xiaoyao took out the strange stone in the storage bag and transplanted the largest cold blood mushroom into the strange stone space. Then, Ren Xiaoyao took out two delicate jade boxes, picked the remaining two, and carefully stored them.

At this point, one of the two tasks that Ren Xiaoyao must complete in the Qingyun Space can be regarded as a successful completion.

At this time, there was still half an hour left in the effect of the Ghost Breath Pill, and Ren Xiaoyao didn't want to Lang Fei, the only Ghost Breath Pill, and after collecting the Cold Blood Zhi, he wanted to explore the Burial Spirit Lake again.

The first thing Ren Xiaoyao wanted to explore was this mysterious black hole, but now that Ren Xiaoyao was just standing at the edge of this black hole, he had to urge the power of the Nine Yin Bone Umbrella with all his strength to be safe and sound. If you want to enter this black hole, you can't do it with the current means.

However, since this black hole can spew out thick and abnormal black water, there must be something mysterious in it, and it is likely that this hole is unfathomable.

After circling around the black hole a few times, and finding nothing desirable, Ren Xiaoyao finally gave up the exploration of the black hole, left the black hole, and went to explore the rest of the lake.

Could it be that there are really no living beings in this black hole? Ren Xiaoyao asked himself in his heart while carefully searching for treasures at the bottom of the lake.

No matter what, more is better than less, if there are no living beings in this burial spirit lake, it may not be a good thing for Ren Xiaoyao.

Then, Ren Xiaoyao quickened the pace of searching, searched the entire bottom of the Burial Spirit Lake repeatedly, and found several millennium and ten hundred years of refining materials, and his heart was overjoyed.

It seems that there is no more treasure to be found at the bottom of this burial lake. Ren Xiaoyao thought so, and was about to float up and leave the Burial Spirit Lake, but suddenly felt a light vibration in the lake, although it was extremely slight, but Ren Xiaoyao still felt it.

Ren Xiaoyao's face changed, but he didn't panic, he felt it carefully, and found that the epicenter came from the center of the lake, ready to say, where the mysterious black hole was located.

What should I do? Do I want to investigate? Let me go and make a decision. At this time, the effect of the Ghost Breath Pill in Ren Xiaoyao's body was almost the time when there was only one pillar of incense left. This sudden shock is a little weird, if you let it go to investigate and control, if you encounter danger, once the effect of the Ghost Breath Pill is over, I am afraid that my life will be in danger. But if you don't go to investigate and control, Ren Xiaoyao will be unwilling.

In the end, Ren Xiaoyao gritted his teeth, drank a few sips of spiritual water, replenished his mana, and then quickly moved towards the center of the lake.

Sure enough, the source of the vibration came from this black hole. At this time, the black water gushing out of the black hole is several times thicker than before, and it is intermittent. Ren Xiaoyao was no longer able to stand at the edge of the black hole, so he could barely stand seven or eight meters away, and he could vaguely investigate the abnormality of this black hole with his divine thoughts.

There is nothing peculiar about it, except that the black water that had been flowing out of it turned into bursts of gushing out.

But this idea was quickly abandoned by Ren Xiaoyao, and after the mutation, a black water gushed out, which was strange. Ren Xiaoyao took a closer look at the newly spewed black water and found that there were some black ore slags in it, weak and fine dust. The dead air emitted by these black slags was several times thicker than the dead air emitted by the previous black silk.

Ren Xiaoyao hurriedly avoided the slag and retreated a few meters. At this time, Ren Xiaoyao could not detect this black hole, whether it was vision or divine thoughts, but the vibrations were becoming more and more violent, and the gushings were becoming more and more frequent, but they could be clearly felt.

The effect of the Ghost Breath Pill still has half a pillar of incense, and there is no other abnormality, so Ren Xiaoyao has to leave.

At this time, Ren Xiaoyao found that a slag gushing out before had turned into a black ore the size of a boxer, looking at the newly spewed ore, Ren Xiaoyao was inexplicably shocked.

What kind of stone is this, the color is pitch black, more than several times blacker than the black stone that Ren Xiaoyao encountered before, it is that pure black. The most terrifying thing is that the death aura emitted by this black stone is simply terrifying.

Legend has it that the Immortal Stone is unique to the underworld, made of the condensation of dead air, and is one of the treasures of ghost cultivation. However, the legendary stone is unique to the underworld and cannot be seen in other yang worlds. This is the Funeral Lake, full of life, could it be that this black hole is connected to the underworld, and this underworld stone is transmitted from the underworld on the other side of the black hole?

A black stone the size of a fist sprayed into Ren Xiaoyao's feet, and Ren Xiaoyao tested it with mana under curiosity, and found that as soon as the mana touched the black stone, it quickly disappeared.

Either this blackstone can devour mana, or the dead energy emitted by this blackstone can quickly consume mana. Ren Xiaoyao guessed like this, but guessing was useless, at this time, Ren Xiaoyao's time was precious, and he didn't have time to investigate in detail, since this black stone like this dark stone was so mysterious, Ren Xiaoyao naturally couldn't let it go.

Ren Xiaoyao alone took out an empty storage bag of excellent quality, controlled the two puppets beside him, put away the spirit sword in their hands, and let the puppets pick up these dark stones scattered under their feet. The moment he put the Stygian Stone into the storage bag, Ren Yao's mana and divine thoughts that came into contact with the Stygian Stone disappeared a lot for no reason.

The space in the storage bag is a separate space, and after the Stygian Stone is included in it, all the dead air on the Stygian Stone is trapped in the storage bag, and it has no effect on Ren Xiaoyao.

Since it is sprayed, it is impossible to spray only one dark stone, there should be more. As soon as Ren Xiaoyao thought of this, he hurriedly searched around again, and finally found a few more spirit stones, about the same size, and used the same method to move these spirit stones into the storage bag.

At the beginning, the gushing was still bursting and slight, but at the back, dozens of dark stones the size of a fighter erupted from the black hole at a time. Ren Xiaoyao retreated a few dozen meters again, only to avoid the black hole that had increased a lot in concentration. The number of dark stones has increased, and it is much easier for Ren Xiaoyao to collect, and after a while, hundreds of pieces have been collected.

At this time, Ren Xiaoyao, who was cautiously collecting the Immortal Stone, saw a living creature at the bottom of the Burial Spirit Lake for the first time, and it was a creature that erupted from a black hole. This strange creature was gray in color, less than a foot long, and looked like a fish on the outside, with protruding bones all over its body, as if it was wrapped in a layer of skin, and there was no flesh and blood. As soon as this gray fish spews out, it shows its gloomy teeth and looks hideously everywhere in search of prey.

This is, these gray fish saw the puppets controlled by Ren Xiaoyao, and they attacked the two puppets frantically, and as soon as their gloomy teeth bit on the puppet's body, the bite was immediately corroded and lost all spiritual power.

Ren Xiaoyao was not discovered by these gray fish because he had the storage of Jing Wang Yi and Xi Dan, making these two puppets the target of the gray fish.

"Slash!"

Ren Xiaoyao took out a semi-extreme spirit weapon, and used his flying sword technique to control the spirit sword to slash at one of the gray fish, and the expected sword split the gray fish in two did not appear. Although the beheaded gray fish was beheaded to death by Ren Yao, the wound on his body was only half a finger deep, and gray blood flowed out. In fact, the gray fish that was cut by Ren Xiaoyao was not killed by Ren Xiaoyao, because as soon as the gray fish was injured, the gray blood just came out, and it was eaten by several gray fish next to him.

At this time, the gray fish that erupted from the black hole had increased from a few before to dozens, and then quickly to a swarm, and the number had increased enough to threaten Ren Yao. Those two Qi refining period puppets were surrounded and bitten by dozens of gray fish, and they were already damaged.

If it weren't for Ren Xiaoyao's Nine Yin Bone Umbrella, which belonged to the Yin Attribute Extreme Spiritual Weapon, these gray fish would not dare to touch it, I am afraid that the Nine Yin Bone Umbrella would also become a target of attack.

It was time to leave, and after Ren Xiaoyao put a nearby Immortal Stone into the storage bag, he also put the two damaged Qi Refining Period puppets into the storage bag, and prepared to leave.

At this time, the mutation is abrupt!