Bitter Bamboo Island.
Seventy percent of the island is covered with low-grade Spirit Plants called Low-grade spirit plant Bitter Bamboo. They don't have many special characteristics, they are just relatively hard.
Those over a thousand years old can be used as Materials for top-tier Magical Artifacts. In the past, someone once found a ten-thousand-year-old Low-grade spirit plant Bitter Bamboo and refined it into a Magic Treasure.
Currently, most are only a hundred years old, those over five hundred years are rare, not to mention a thousand or ten thousand years.
Because their value has plummeted, few people come to Bitter Bamboo Island. Those who do are just passing through, taking a glance and appreciating the bamboo sea scenery.
Li Feiyu opened an Immortal Cave under a small mountain peak on Bitter Bamboo Island.
After two months in secluded cultivation, he refined Yu Feng into a refining corpse. Even if he couldn't use him to condense an Incarnation, controlling him as a Puppet shield or something similar with Divine Sense was still not an issue.
However, this refining corpse secret art is somewhat low-grade. If there were a more Advanced one, this Core Formation body wouldn't be wasted.
Afterward, Li Feiyu began to refine the Three Thousand Fire Crows.
The Three Thousand Fire Crows are divided into two thousand seven hundred ordinary Fire Crows, named Fire Crow Guards, which generally possess the strength of the Foundation Establishment Middle Stage. Then there are two hundred ninety-nine Fire Crow Generals, with Core Formation Middle Stage strength.
Finally, there is the Fire Crow King, a Nascent Soul Middle Stage Puppet.
Currently, he has the Materials to refine Fire Crow Guards, enough to refine three thousand, though some are for practice.
Refining Puppets is similar to Artifact Refining. The difficulty lies in engraving Formation patterns on the core of each Fire Crow.
If he can refine all Three Thousand Fire Crows in the future and combine them with the Three Thousand Fire Crow Formation Diagram, their power would be enough to dominate the Nascent Soul Stage and even contend with the Soul Transformation Stage.
Time flowed like water, years passed.
Eight years went by in a flash.
Li Feiyu refined Fire Crow Guards while Cultivating Divine Abilities.
Currently, the Advanced versions of Scarlet Sun Escape and Scarlet Sun Strike have been successfully Cultivated, and all Materials have been used up. He has refined a total of eight hundred sixty-five Fire Crow Guards.
With his current Divine Sense, he can fully control one hundred Fire Crow Guards. If they attack together, even a Core Formation Middle Stage Cultivator would likely retreat three paces.
In addition, he cultivated the Myriad Year Soul Devouring Tree, refined it and the soul devouring stone, and merged them into the Soul Devouring Yin Plate.
The Artifact Spirit awakened, and its power greatly increased, restoring it to the level of a medium-grade ancient treasure.
Now, even if he gives it a drop of longevity liquid of Ten Thousand Years at once, it can withstand it without falling into slumber again.
Another two months passed, and Li Feiyu improved the Illusionary and Elusive Central Unmoving Grand Formation, using the pan mountain seal as the Formation eye, which greatly increased the Formation's power. Core Formation Middle Stage Cultivators would find it difficult to escape once trapped, and it would be more than sufficient to siege Demon Beasts, even those of the seventh level.
Afterward, Li Feiyu returned to his Heavenly Star City Immortal Cave. The first thing he checked was the insect room.
There were already five to six thousand Gold Devouring Bugs. Although they hadn't been fed for ten years, they were all alive and well.
He put all the Gold Devouring Bugs into a separate Spirit Beast Bag, then set off again for the Outer Star Sea.
He lured Demon Beasts with rainbow skirt grass, trapped them with a Grand Formation, and then relentlessly slaughtered them.
This time, he primarily targeted Demon Beasts of level five and above, so the rainbow skirt grass he used was mostly cultivated to be over four or five hundred years old.
He moved from one island to another, constantly heading deeper into the Outer Star Sea.
In just four years, Li Feiyu was numb from killing, Evil Qi swirling around him, making him look fierce and malevolent. It took him nearly half a month to control and convergence the Evil Qi.
Over these years, not only did Li Feiyu himself make a fortune, but the Soul Devouring Yin Plate also collected countless souls of Demon Beasts. Under the Artifact Spirit's active refining, it has now condensed nine Core Formation Early Stage Yin Souls, eighty-one Yin Souls comparable to Late Foundation Establishment stage, and three hundred sixty Yin Souls of Qi Refining Great Perfection.
With the power of the Yin Souls, the Soul Devouring Yin Plate's unleashed power became even more terrifying, but the difficulty of activating it also increased. Li Feiyu can currently only unleash one 'Ten Thousand Ghosts Devour Soul' attack.
All Yin Souls poured out, Yin Qi covering the sky and earth, enough to cause a drastic change in the weather. This kind of attack could contend with a Core Formation Late Stage Cultivator or a seventh-level Demon Beast without problem.
"Counting the days, that ancient Cultivator's Immortal Cave, which contains the Taiyin Mysterious Water Formula, should be opening soon."
After Li Feiyu took out the sea map and examined it carefully, he aimed in a certain direction, leaped onto Crimson Crow's broad back, and soared into the sky.
Over a decade, Crimson Crow's size had increased further, and its strength had also grown considerably, but it was still within the Realm of a fifth-level Demon Beast.
However, the Golden-backed Demonic Mantis and the Soul Devouring Golden Cicada were still stuck at the peak of fourth-level Demon Beasts.
The further one progresses, the harder it is to Breakthrough; there's nothing that can be done about that.
...
Liyang Island.
Nearly five hundred people, ranging from Qi Refining and Foundation Establishment to Core Formation Cultivators, had arrived. There were forty to fifty Core Formation Cultivators alone, most of whom were in the Core Formation Early Stage.
This ancient Cultivator's Immortal Cave is not small, spanning a hundred miles, but because it has been opened multiple times, even if there were good things, they would have been completely plundered.
Li Feiyu's arrival on a Spirit Beast was quite eye-catching.
"Brother Li."
Hearing the voice, Li Feiyu looked in the direction of the sound and saw Xing Jueyi. He smiled and flew over. At the same time, Crimson Crow also shrunk into a small red bird and perched on his shoulder.
"Not bad, you've reached Core Formation."
"Thanks to your help, Brother Li. This is my Protector Elder, Elder Dongfeng."
Li Feiyu nodded in acknowledgment, and Elder Dongfeng did the same.
Besides Xing Jueyi, Li Feiyu also saw his Elder brother and second sister. It seemed there were indeed some things in the inner layer of this Immortal Cave, as all three direct Disciple of the Xing Family had come.
Li Feiyu looked around. There were several Core Formation Cultivators whose auras were subtle, giving off a profound and unfathomable feeling.
Xing Jueyi whispered, "Brother Li, I don't think you're very familiar with the people here, are you? Shall I introduce them to you?"
"Sure."
"Those two over there are Core Formation Elders from the Tianyu Commerce Alliance, that one is from Ten Thousand Swords Sect, that one is Wu Chou, the great-grandson of Ancestor Zenith Yin, that one is Scarlet Fire Old Freak from Yuangui Island – although he's a lone Cultivator, he's in the Core Formation Late Stage and not to be trifled with, and there's also…"
"Wu Chou, Scarlet Fire Old Freak?"
Li Feiyu lowered his head in thought. It seemed he needed to be careful. Perhaps the one currently controlling Wu Chou's body was Ancestor Zenith Yin, and he didn't know if his Heavenly Demon Fire had been refined yet.
Although Wu Chou is in the Core Formation Early Stage, for the sake of caution, Li Feiyu treating him as a Core Formation Late Stage Cultivator is perfectly fine.
Scarlet Fire Old Freak's hidden identity is a Disciple of Six Paths Extreme Sage, so his Divine Abilities and methods must be extraordinary.
The Formation Restrictions of this ancient Cultivator's Immortal Cave are of the Nascent Soul level. No one present was confident in breaking them, so they were all waiting for the Formation to open automatically.
About two hours later, the colorful Formation light curtain disappeared. Led by Core Formation Cultivators, hundreds of people flew inside.
The Core Formation Cultivators' objective was clear; they went straight to a magnificent temple sect. This sect was embedded in the mountain wall, quite peculiar.
However, they waited for a long time, but the temple sect did not open.
A Core Formation Elder said, "The information passed down by Tianzhenzi, that this temple sect opens every three hundred years, couldn't be wrong, could it?"
"If you don't believe it, you can leave now."
Everyone dared not act rashly. Time passed bit by bit until night fell, and the moon was high in the sky. A beam of moonlight, appearing from nowhere, shone on the temple sect.
The temple sect began to emit a faint glow, and everyone's eyes lit up.
It turned out that it needed the power of moonlight to open!
A moment later, the temple sect made a rumbling sound, as if the entire mountain peak was shaking, and then the two temple doors slowly opened outwards.
After opening, what appeared was actually a jade wall. The jade wall had mysterious patterns and thirty-six small grooves distributed throughout.
"Could this be a Teleportation Formation?! Is the so-called inner hall of the Immortal Cave located in an ancient Forbidden Land or Secret Realm?"
If this Forbidden Land was appearing for the first time, there would likely be endless Opportunities within.
The Core Formation Cultivators' eyes all gleamed, their expressions shifting, some showing clear greed.
Everyone looked at each other. Such a great Opportunity, no one would easily give it up, but a chaotic battle involving fifty or sixty Core Formation Cultivators would definitely be a very dangerous affair.
At this moment, Xing Shui Tian said, "This jade wall Teleportation Formation might lead to an ancient Forbidden Land. For fairness, I propose that we divide into factions to oversee this grand Teleportation Formation."
"Those at the Core Formation Realm can enter directly, while those below Core Formation will need to pay a certain amount of Spirit Stones to the leading faction."
"What do you all think?"