The sky was completely dark, the woods were quiet, today seemed to be a special day, throughout the day, Ye Qing did not encounter a few fierce beasts, even if he saw a few, he was in a hurry, and when he saw Ye Qing, he treated Ye Qing as if he didn't see it, and completely treated Ye Qing as air.

After dark, the starry scenery disappeared, and the only thing left was a red crescent, which seemed to be a blood moon, which was extraordinarily demonic.

Ye Qing was hiding on the edge of the boundary river in the second and third regions at this time, of course, he was on the side of the second region, and it did not have the courage to run to the third region now, although there were few fierce beasts today, but just standing on this side of the river, Ye Qing felt the boundless pressure on the opposite side, and seemed to be warning to go, as long as it dared to pass, it would be a dead end.

It is also Ye Qing's good luck that came to an end, after leaving the black bear's lair, it took him his body time to find the giant crocodile's lair in a lake next to the boundary river.

It's a pity that when he entered the giant crocodile's underwater lair with excitement, he found that there was nothing here, let alone an elixir, and even the ordinary plant Ye Qing didn't see a single one.

However, there is a group of hateful fierce beast sabertooth fish wandering around the giant crocodile's lair, and their strength is not weak, the most ordinary one is also Hou Jie, and when he saw Ye Qing, he attacked directly, and he didn't even say hello.

Ye Qing's underwater strength itself was limited, and in the face of thousands of saber-toothed fish attacks, Ye Qing had no choice but to run away, and this run actually went directly to the edge of the boundary river, and it was getting late, so he had to find a hidden place to get up.

"Woo~~~!"

Suddenly, a terrible sound broke the silence of the night, and this voice came from a distance, and people couldn't help but feel creepy.

"This voice?" Ye Qing's face changed when he heard the voice, and he subconsciously thought of 'ghost'.

For ghosts, Ye Qing doesn't count, he had fought with a scholar who cultivated ghost Taoism in the previous dynasty competition, and later he also learned about ghosts, so he is not very strange to ghosts.

Although the ghosts and corpses are both products of living beings after death, they seem to have gone to two extremes, one is to develop in the direction of the physical body, and the other is to develop in the direction of soul discovery.

The corpse clan is formed by the strong people in the flesh before death, and can still keep the body incorruptible after death, and it is formed by chance or deliberate cultivation, and the ghost clan is the same, the ghost clan is some creatures with strong talent in spiritual power or soul before death.

After the death of these living beings, the soul does not dissipate because it is too powerful or for some reason, but stays between heaven and earth, and generally does not come out during the day, and only at night will it absorb the essence of heaven and earth yin qi and strengthen itself.

The most important thing is that unlike the corpse clan, which does not inherit the memories of the previous life, some of the elite of the ghost clan will awaken the memories of the previous life when they reach a certain strength.

"Woo~~~!"

Just when he was also recalling the information of the ghost clan, almost immediately followed by the second voice sounded again, this time the voice seemed to suddenly sound in Ye Qing's ears, very weird and scary.

"It won't be so unlucky, I slept in the wild before, and I met the patrol of the corpse clan, this time I won't break into the territory of the ghost clan again, right?" Ye Qing secretly protected his bad luck, and he was able to encounter terrible things in two accidents.

Suddenly, Ye Qing spotted a piece of fire in the direction of the Boundary River, which shocked Ye Qing to think that there were any intelligent beings here. Ye Qing carefully observed one side before he breathed a sigh of relief, this was a man-made fire, and it was clearly a fire cloud composed of ghost fires.

In his previous life, Ye Qing heard that the "ghost fire" was actually phosphorus fire, which was a very ordinary natural phenomenon. It is formed like this: the inside of the human body, in addition to the vast majority of carbon, hydrogen, and oxygen, also contains some other elements, such as phosphorus, sulfur, iron, etc. Human bones contain more calcium phosphide. When people die, their bodies are buried in the ground and rotting, and various chemical reactions are taking place. Phosphorus is converted to phosphine from the phosphate state. Phosphine is a gaseous substance with a very low ignition point and ignition at room temperature when it comes into contact with air. After phosphine is produced, it emerges into the air along cracks or holes in the ground, and burns with a blue light, which is called phosphorus fire, which is also known as "ghost fire".

"Ghost fire" is common on midsummer nights, when the atmosphere is hot, the temperature is very high, the rate of chemical reaction is accelerated, and phosphine is easy to form. Because the phosphine produced is often mixed with biphosphine, and the ignition point of biphosphine is very low, it can spontaneously ignite when exposed to oxygen at room temperature. After the spontaneous combustion of the trace amount of phosphine, the temperature generated ignites the phosphine again, so the phenomenon of ghost fire is produced.

But Ye Qing didn't dare to apply that set of "scientific theories" here now, because this was a desolate world, and many sciences in the previous life would not work here, but those so-called superstitions were prevalent here.

Ye Qing, who had a certain understanding of the ghost clan, naturally knew that this ghost fire was the soul fire that the ghost clan relied on for survival, and it was usually hidden in the ghost qi, and it would only be released when cultivating.

It seems that these ghost clans have discovered Ye Qing, after all, there is only one creature in the vicinity, and the rich breath of life on his body cannot be concealed even if he wants to.

was discovered, naturally he couldn't sit still, Ye Qing also wanted to know how strong the true combat power of the ghost clan was. Suddenly, a giant palm of flame silently appeared next to the group of ghosts.

This group of ghost clans seems to have only condensed the soul fire for a long time, and their strength is still very weak, not even a complete form, with a trace of black aura all over their bodies, no flesh and blood, only a hideous grimace.

When they encountered Ye Qing's flame giant palm, they didn't even have the strength to resist, they were melted by the high-temperature giant palm, and even the soul fire was completely dissipated, this time they were completely dead, even if the ancient gods wanted to resurrect them, it was impossible.

"Damn, this thing is too weak!" wiped out a ghost clan with one blow, even Ye Qing, who launched the attack, didn't expect that the legendary famous ghost would be wiped out by Ye Qing like this.

But immediately, Ye Qing was relieved, this should only be the weakest ghost clan, just look at their appearance, you can know that except for the appearance of a little scary, there is no destructive power at all. It's completely a scum with a combat power of 0.5.

Solving this group of weak ghost clans, Ye Qing is not proud, this should be just a group of cannon fodder of the ghost clan, Ye Qing understands that the big challenge should still be ahead.

Suddenly, Ye Qing suddenly found that the boundary river hundreds of zhang wide in front of him actually began to tumble, and the river continued to rise, immediately flooding the surrounding broken woods and hills, and the altitude of the place where Ye Qing was located was okay, and it was not flooded by the sudden surge of the river, but it was not far from him, that is, a mile away.

Fortunately, the river rose quickly and stopped fast, and finally stopped expanding about a mile in front of Ye Qing. But the current boundary river is no longer so suitable for a river, compared to before, the current boundary river is completely hundreds of times more spacious than before, just like the ocean, Ye Qing can't see the edge at a glance.

And the most bizarre thing is that the current river water is no longer the clear river water it used to be, but has become a kind of water that exudes a yellow-green light, and it is still thick and corrosive, and the woods covered by it have all lost their vitality in an instant, turning into a pile of powder and dissipating into the world.

Looking at these disgusting yellow-green river water, Ye Qing thought of the kind of corpse water that flowed out of the corpse that he saw when he went out to meet the corpse, the two were exactly the same in terms of smell and color, but the corrosiveness here was much stronger.

"Could it be that these are corpse waters? But how many dead beings do you need to die to flow out of so much corpse water!" Ye Qing looked at the yellow river formed by the corpse water in front of him, rushing all the way towards the distance.

Ye Qing looked towards the upper reaches of the river, hoping to find its source, but unfortunately Ye Qing was disappointed, even if his eyesight was amazing, but in this dark night, all he saw was an endless yellow river, as for the source, he didn't even see a shadow.

"In the ghost legends of the previous life, it seems that there is a river in the underworld where the ghosts reside, flowing from the beginning of time to the end of time, across time and space, immortal, that is, the Yellow Spring, it seems that its essence is that the corpse water flows into a river, and it is said that those who have just died have to cross this Yellow Spring Road if they want to enter the underworld, but I didn't expect that there is a similar existence in this strange ancient battlefield!"

"Roar!"

"Roar!"

"Roar!"

As the Yellow Spring gradually formed, a terrifying hoarse voice also came out of it.

"Legend has it that the souls of those newly deceased creatures, the reason why they can't get through the Huangquan Road is composed of corpse water, and those corpse water carries the grievances of many dead people, and the unwillingness of hundreds of millions of dead people when they die flows into the Yellow Spring with the corpse water, so there is the existence of the Huangquan Road ferryman, who is responsible for ferrying the souls of the newly deceased across the Huangquan Road and into the underworld!"

As a young man in the new century who has been educated in atheism for decades, Ye Qing's understanding of Huangquan Difu in his previous life was only seen when he was reading novels, of course, in the stories of some old people, it was also vaguely mentioned, but unfortunately he never seriously understood it.

So the information in retrospect now is only half-understood, and in the desolate world, it seems that there has never been a record of Huangquan Road, and the underworld has never appeared, and there is not even a similar structure, even if it is just a legend.