Regarding the Immortal Soul Grass, all the information that Lin Feng knew before was from Ye Ying, and he only knew that it was an extremely rare ninth-level elixir, which could be used to refine the Immortal Soul Pill, as well as its basic appearance characteristics.

In the memory of the Blood Demon Venerable, there is extremely detailed information about the Immortal Soul Grass, because even in the era before the catastrophe, this kind of elixir is only stored in the legend, used to refine the Immortal Soul Pill, which is only one of the functions of this elixir, and there are many other magical effects, but Lin Feng only cares about the Immortal Soul Pill, not to mention the others.

The growing conditions of fairy soul grass are very special, and it needs one of the most important factors, and that is...... Immortal Soul!

This is where the name 'Fairy Soul Grass' comes from.

Immortals can take the initiative to warm the plant with their own immortal soul energy, day after day, year after year, after a long time, even if it is an ordinary weed, after continuously absorbing the immortal soul energy, it will also undergo incredible mutations, and finally grow into a top-level elixir, which is the 'immortal soul grass'. It's simple, but it's actually an incomparably long process, and it's not necessarily smooth sailing, during which there is a slight difference, it will fall short, even if you don't go on a business trip, if you want to conceive a mature fairy soul grass, it will take more than 10,000 years.

In the memory of the Blood Demon Venerable, the Moon Cloud Immortal once cultivated an Immortal Soul Grass, but it accidentally failed at the age of eight thousand years.

In addition to the active cultivation of immortals, there is also a situation that can 'naturally' generate immortal soul grass, and the immortal soul grass generated in this situation also needs a necessary environment, that is, the place where immortals fall!

After the fall of the immortals, it is possible to grow the immortal soul grass naturally in the place where the immortal soul energy remains after its death, but in this case, the probability of growing mature immortal soul grass is very low, at least much lower than the careful cultivation of the living immortals.

And how powerful the immortals are, how can they fall lightly, the 'wild' immortal soul grass is naturally rare for ten thousand years, and it is still the case in the immortal world, let alone in the cultivation realm, generally speaking, the immortal soul grass cannot appear in the cultivation realm at all, unless it is handed down from the immortal realm.

However, now, in the Moon Cloud Realm, there is a very special situation, that is, the catastrophe of 20,000 years ago, the battle of immortals that took place in this Connecting Realm!!

In that battle, just from the memory of the Blood Demon Venerable, it could be determined that the Moon Cloud Immortal was killed on the spot, and after he fled the battlefield, there was a tragic battle in which the connection was shattered, and the possibility of other immortals falling was very high.

In other words, in this remnant immortal realm, there has been at least one, and it is even very likely that many immortals have fallen here!!, and the time has passed for 20,000 years, it is entirely possible to grow a mature immortal soul grass!

This news was even more important to Lin Feng than any other loot he had gotten, so now that he had packed up and adjusted to his best condition, the first thing he wanted to do was to go and find the Immortal Soul Grass.

With the memory of the Blood Demon Venerable, he was probably more familiar with this remnant immortal realm now than anyone else, he already knew where he was at this time, it was not too far from the catastrophic battlefield back then, it should be in this remnant realm!

This remnant domain was the central area of the Connecting Realm back then, so the aura of heaven and earth here was so strong, and it would give birth to powerful demon beasts like the mountain giant beast he had seen when he first came.

……

After coming out of the cave, Lin Feng followed the memory of the Blood Demon Venerable and sneaked towards the direction behind the mountain.

The reason why I say 'stealth' is because it is too dangerous here, even if he has the fragments of the Creation Secret Treasure, he doesn't have to worry about the special environment, even if his strength has improved a lot, but he doesn't dare to take it lightly, if it is too ostentatious, such as flying directly, and provoking the attack of a seventh-level or even stronger demon beast, it will be troublesome.

Lin Feng has an invisible cloak, and now there is a 'Void Concealment Technique', as long as he is cautious, the safety factor is still very high, even if he encounters a seventh-level demon beast, he can avoid it safely, although it is not happy, but he goes to the destination very smoothly.

However, after moving forward for about a hundred miles, Lin Feng found that the terrain and environment he saw were almost completely different from those in the memory of the Blood Demon Venerable, it was not that the memory of the Blood Demon Venerable was wrong, but that the environment had changed, and this was no longer the beautiful place full of beautiful mountains and rivers in the memory of the Blood Demon Venerable, but had become...... A ruin.

As far as the eye can see, there is a desolate and desolate scene, the number of animals and plants is getting scarcer and rarer the further you go, almost every one of those peaks is incomplete, and there are thousands of ravines on the earth, and the traces of the battle caused 20,000 years ago are still clearly visible until now.

Standing in front of a bottomless ravine, Lin Feng couldn't help but be in a slight trance, he seemed to see that in the battle 20,000 years ago, a powerful monk waved his hand and slashed a ravine in the earth, if he was allowed to come, even if he was allowed to attack the ground with all his strength for a day and a night, I am afraid that he would not be able to achieve such destruction.

Casting the 'Flash Technique' to cross this ravine, Lin Feng continued to move forward, while trying to compare with the terrain in the memory of the Blood Demon Venerable according to the surrounding incomplete environment, so as to confirm the direction, while carefully paying attention to the surrounding movements, the environment here has become desolate, and it is easier to be vigilant than before, but he still can't be careless, because he has already felt that the aura of heaven and earth here is also stronger than elsewhere, and the demon beasts bred in this environment must be more powerful, and they can't be negligent.

What made Lin Feng a little disappointed was that he hadn't picked up any treasures after walking for so long, it seemed that the battlefield had been cleaned up, but I don't know if it was cleaned up by the victors in the catastrophic battle that year, or by the explorers who came here in later generations.

……

Thousands of miles away in front of Lin Feng's direction, there was a huge valley with an area of hundreds of miles, and on both sides were mountains with no end in sight, and it looked like a whole mountain range had been destroyed from it, forming this valley.

In the cultivation realm of the Moon Cloud Continent, basically only the monks above the merger period will know, and it is said that there were once immortals who fell here, so this place is called the Burial Immortal Valley by the people of later generations.

Legend has it that there are countless treasures in this burial fairy valley, and there are even immortal inheritances, and there have been countless great powers who have come here to hunt for treasures since ancient times, but there are very few who can go back alive, as for the specific situation here, it has always been a secret that few people know.

Although it is known that this place is full of dangers, since ancient times, the monks who have gone to explore this place have never stopped, and those who have the ability to come to this burial immortal valley are all powerful monks.

At this moment, in this Burial Immortal Valley, there was a group of monks, a group of four, all gray-bearded old men, three men and one woman, who were moving forward cautiously.

"Be careful, there's a storm ahead. ”

The purple-robed old man who walked at the front looked solemn, and whispered a reminder as he went.

The three people behind him glanced at each other and didn't speak, but their expressions were a little more cautious, and the white-clothed old woman took out a fist-sized cyan crystal bead from the acceptance ring, and when Zhenyuan urged, a dark cyan defensive shield several meters in size shrouded all four of them.

Releasing this cyan light mask, everyone seemed to be slightly relieved, and was about to continue moving forward, but a cold wind suddenly hit their faces, and the four people who cultivated to the lowest level were all in the merger stage, and they all couldn't help but shiver, and then their faces changed at the same time.

"Oh no!!The Gangfeng area has expanded!Defend carefully!"

The purple-robed old man's pupils shrank slightly, and he reacted instantly, and let out a low cry from his mouth, and almost at the same time as he spoke, a vision suddenly appeared around the originally calm surroundings.

"Woo woo woo ......"

A strange wind blew out of thin air, even giving people the illusion of a ghost crying and howling, only to see a real distortion suddenly appear in the surrounding air, the cyan wind rose from the ground, flying sand and rocks, cracking the earth and breaking the wood, and countless wind blades of different sizes swept wildly, covering a radius of dozens of miles.

These wind blades were not aimed at the four people on the ground, but they were too dense, and in just a few breaths, the four of them were attacked by more than a dozen wind blades, although most of them were broken by the four people casting spells before they got close, but a few of them still fell on the cyan light mask above their heads, each time causing a buzz, and the crystal magic weapon in the old woman's hand trembled, making her face look shocked.

The purple-clothed old man was also dark and gloomy, because the power of this gang wind was stronger than the last time he came a hundred years ago, and the range was also expanded, so that if you want to pass through this area, I am afraid it will be more troublesome than expected, but they naturally can't retreat because of this unexpected difficulty, the four of them stopped in place to defend for a while, and after adapting to the rhythm of defense, the purple-clothed old man spoke: "Keep going, one person in one direction, don't mess up." ”

The other three nodded slightly, and began to move forward slowly as they continued to intercept the slashing wind blade.

It's just that at their speed, I'm afraid it will take me to pass through this Gangfeng area......

……

Just as the four powerful monks here were cautiously advancing against the Gangfeng, a few miles away from them, there was also a figure advancing in the Gangfeng, but the situation of this person could simply be described as a 'leisurely stroll'.

This person is naturally Lin Feng. The wind swept around him, but within ten meters of him, it was calm, and when those wind blades approached him, they were slapped away by an invisible force and flew away.

"Huh?" As he was walking forward, Lin Feng suddenly paused, turned his head to look to the left, and said with some surprise, "There are actually others here?"