"'Cave of Ten Thousand Souls'? 'Blood Soul Crystal'?" He whispered a few key words. According to records, this Thousand Soul Cave seems to be a secret stronghold of the Blood Demon Sect, which is specially used to cultivate a special crystal called "Blood Soul Crystal". This kind of crystal contains huge amounts of pure soul power, and is a supreme treasure for demonic monks, especially those cultivating souls.



"It's a bit interesting." The corner of Ye Feng's mouth curled up.



This blood soul crystal does not sound like a righteous thing, but if the soul power in it can be refined, it may be helpful to his "Method of Tempering Spiritual Consciousness".



Furthermore, since it is the secret stronghold of the Blood Demon Sect, it must be heavily guarded and there must be a lot of oil and water.



He dug out the "Blood Evil Grimoire" again.



The jade slips are simple and simple, exuding a faint smell of blood.



He sank his consciousness into it and browsed it quickly.



This grimoire is indeed evil and overbearing. It is guided by the essence, blood and soul of living creatures. It can be practiced very quickly, but it has endless consequences. It is easy to lose one's nature and turn into a demon who only knows how to kill.



"It is indeed evil." Ye Feng curled his lips and put away the jade slip.



Of course he will not practice this kind of technique, but as he thought before, there is no harm in understanding it. In particular, some of the methods regarding the use of souls and the transformation of demonic energy, although crude, still have some fantastic ideas, which may be able to draw parallels.



He stood up and stretched his muscles.



He first set up a few simple concealment and warning formations at the entrance of the cave. Although they were superficial, they were better than nothing. Then, he sat down cross-legged and took out a large number of spiritual stones and several pills to restore spiritual power.



"System, first raise your cultivation level to the peak of the ninth level of the Golden Core!"



[Ding! Spend 40,000 Qiankun Points to start improving the host's cultivation...]



A huge warm current poured into Ye Feng's limbs and bones from the system space, and then gathered in the Dantian. The golden elixir in his body rotated crazily, absorbing this pure energy, and its volume and solidification increased at a speed visible to the naked eye.



The late stage of the seventh level of the golden elixir...the early stage of the eighth level of the golden elixir...the middle stage of the eighth level of the golden elixir...



The majestic spiritual energy surged and roared in his body, and his meridians were continuously broadened and strengthened.



Ye Feng kept close to his mind and ran the "Zhou Tian Xing Jue" to guide this power and meticulously integrate it into the golden elixir.



His physical body was already strong. At this moment, under the wash of spiritual energy, it was tempered again, and there was a faint precious light flowing.



In the sea of ​​consciousness, the original power of the dragon soul exuded a faint coercion, making his mind as stable as a rock and unaffected by the surge of external energy.



As time passed, the spiritual energy in the cave fluctuated more and more violently.



Boom!



A low roar came from Ye Feng's body, and his momentum suddenly surged!



The peak of the ninth level of Jindan!



Ye Feng slowly opened his eyes, and the light flashed in his eyes. He could clearly feel the surging power in his body, which was several times stronger than before. At this moment, every move he made was filled with an inexplicable power.



"The peak of the ninth level of Golden Core is indeed extraordinary." Ye Feng nodded with satisfaction. Although there is still one step away from the Nascent Soul, this is already the ultimate stage of the Golden Elixir stage.



He stood up, feeling the full strength in his body, and felt heroic in his heart.



"The next step is the 'Ten Thousand Souls Cave'." A trace of anticipation flashed in his eyes.



There are three high-grade Taoist artifacts in the Blood Fiend Ancestor's storage ring, a blood-colored long knife, a breast mirror, and a black cauldron, all of which exude strong fluctuations.



He has no use for these things for the time being. As a Taoist weapon, the Qingxuan Ancient Sword is far superior in quality, and the Xinglei Sword is even more of a top-quality artifact.



"However, before going to the Cave of Ten Thousand Souls, you may want to learn some of the secrets in the "Blood Evil Grimoire", especially the part about the soul." Ye Feng muttered, "Know yourself and the enemy, and you will never be defeated in a hundred battles. Moreover, I always feel that there are some secrets hidden in this grimoire."



He took out the jade slip of the "Blood Evil Grimoire" again, and his spiritual consciousness sank into it.



This time, he no longer gulped down the pages, but carefully studied them word for word, especially those about the methods of refining souls and controlling demonic energy.



Although these methods are evil and vicious, the understanding and application of the power of the soul opened up Ye Feng's eyes.



Although the "Method of Tempering Spiritual Consciousness" he has practiced has reached its peak, it mainly focuses on the condensation and defense of divine consciousness. In terms of attacks and strange applications, it is not as direct as some of the secret techniques in this grimoire.



"Using the soul as a guide, turning blood into evil... there are some ways." Ye Feng thought to himself while studying, "If I can remove the dross, take the essence, and integrate it into my own skills, maybe I can make the power of my soul more flexible and changeable."



He does not want to practice magic, but wants to learn from its ideas and improve himself. It's like a top swordsman who observes other people's swordsmanship. Even if it's a crooked swordsmanship, he can learn something useful from it.



Unconsciously, several hours passed. Ye Feng's understanding of the "Blood Evil Grimoire" deepened. Although he has not practiced yet, he has been able to simulate the unique aura of some magic arts, which may be of unexpected help to him during his subsequent trip to the Ten Thousand Souls Cave.



"Almost." Ye Feng put away the jade slip and stood up. He removed the formation at the entrance of the cave, disappeared into the forest in a flash, and sneaked towards the "Ten Thousand Souls Cave" marked on the map.



The Ten Thousand Souls Cave is located deep in the Yinshan Mountains.



This place has been shrouded in gray-black miasma all year round, with no sunlight and no ordinary creatures. Only some monsters and monsters that like evil spirits appear.



Following the map's guidance, Ye Feng spent several days before finally reaching this area. He restrained his aura and shuttled between the rugged rocks like a shadow.



The deeper you go, the thicker the cold air becomes, and you can even faintly hear some faint shrill howls.



"So much resentment and death." Ye Feng frowned slightly.



This place is indeed not a good place. The Blood Fiend Sect's secret stronghold is located here, which is in line with their evil sect's style.



According to the map, the entrance to the Ten Thousand Souls Cave is extremely hidden, hidden behind a huge waterfall.



When Ye Feng came to the waterfall, he saw that the water was rushing, roaring, and filled with water vapor.



His consciousness swept over and found that behind the waterfall, there was indeed an energy wave covered by the formation.



"It seems like this is it." Ye Feng did not rush in rashly. He observed carefully for a moment and found that this formation was quite exquisite. It not only had a concealment effect, but also had defense and warning functions. If the formation is broken by force, the people inside will be alarmed.



He thought for a while, took out a piece of clothing belonging to a disciple of the Blood Demon Sect from the storage ring, put it on, and then activated a trace of the magic energy movement method he learned from the "Blood Demon Sect" to simulate the unique atmosphere of the Blood Demon Sect's technique. With his cultivation at the peak of the ninth level of the Golden Core, combined with his powerful spiritual consciousness and control of demonic energy, it would be difficult for ordinary people to distinguish the authenticity from the fake.



After doing all this, he walked to the waterfall and took out an identity token found in the storage ring of a blood evil disciple. This token can only be owned by the core disciples of the Blood Demon Sect, and it is stained with a trace of the blood demon ancestor.



He pressed the token somewhere on the stone wall behind the waterfall and muttered words, imitating the special formula for opening the blood evil gate.



Buzz!