"Spirit Cave?" Li Xiao withdrew his gaze from Xiao Shan's body, looked at the old ghost and said, "What is a Spirit Cave?"

He had heard this word from the mouths of the old ghost and the four-winged fang, as the name suggests, this spirit cave should be a cave with a relatively strong aura. Although this hall is magnificent, it is obviously built on the belly of the mountain, and it is reasonable to say that it is a cave, but Li Xiao naturally knows that this "spiritual cave" will definitely not be so simple.

The old ghost didn't care about Li Xiao, his figure quietly collapsed, and then appeared at the entrance of the passage.

This extremely spacious hall had two heavy stone gates at the entrance of the passage that Tai Suizi and Li Xiao had entered before. But at this moment, the two stone doors were opened towards the inside, and it was obvious that the previous four-winged fangs had opened this door and entered the hall here first.

The old ghost floated out of the passage, and clouds of black gas quietly poured out from his body. The old ghost muttered some inexplicable incantations in his mouth, and then took out a few small pieces of jade from his arms, condensed a ghost force, and shot all these pieces of jade into the rocks under the four directions of the passage.

Five Elements Forbidden Spirit Formation!

The old ghost is familiar with the group of books, and he has a lot of experience in the way of formation. In the world where the cultivation of the truth is declining on the earth, the way of the formation that the old ghost naturally comprehends only by relying on books is naturally not profound. However, this "Five Elements Forbidden Spirit Formation" happened to be the most handy formation that he had studied for many years and mastered. Outside the villa where the three of them lived before, the old ghost set up such a formation.

This Five Elements Forbidden Spirit Formation has no lethal power, and the biggest effect of this formation is to isolate the breath of all the power of the Void Spirit. When he was on earth, the old ghost laid out this formation, which was used to cover up his own ghost breath and the demonic aura of the mountain, and it was arranged here at this moment, but it just happened to be able to isolate the spiritual power leakage in this huge hall.

After laying down the forbidden spirit formation, the old ghost laid down several virtual obstacle techniques outside the passage one after another, before retreating, carefully closing the two stone doors, clapping his hands, and said with a smile: "Okay!"

In the final analysis, this virtual obstacle technique is a low-level obstacle method, which is under the innate demon skill of Meizu, which is commonly known as "ghost hitting the wall".

Li Xiao frowned and watched the old ghost's actions, until he returned to the main hall, and then continued: "You are just a hundred-year-old ghost in the Qi accumulation period, and your ghost hitting the wall can at most make ordinary people with sufficient spiritual energy confused for a while. Those who have come to this spiritual realm are at least primordial cultivators or other alien beings of the same realm, is it useful for you to hit the wall?"

The old ghost said angrily: "If it was before, it would naturally be useless, but don't forget, my old ghost is no longer what it used to be." ”

"Huh?" Li Xiao looked the old ghost up and down, couldn't help but be startled, and said, "The Ninth Heaven of Qi Accumulation, and it's still the peak realm?"

"What do you think!" The old ghost stroked the sparse goatee under his chin and said proudly: "This is the spiritual cave of the entire spiritual realm, a spiritual cave that supports the powerful spiritual realm of the catastrophe, do you think the name of this 'spiritual cave' is obtained for nothing?"

Li Xiao sighed secretly in his heart. The old ghost was just hidden in his sea of consciousness for only a moment, and he advanced to two levels, and he had absorbed the same spiritual power as the old ghost by "absorbing", but he only barely rose to one order. Although his own demon body is powerful, in terms of cultivation, he is too far behind other demon clans.

However, such a terrifying ascension speed has exceeded Li Xiao's best expectations. Thinking in his heart, Li Xiao was even more curious about this "spirit cave", and was about to ask the old ghost again. The old ghost smiled reservedly, and continued to himself: "However, the effect of my old ghost's Void Barrier Technique has greatly increased its charming eyes, but it is not due to the improvement of the strength of this old ghost, but because of the profound knowledge of this old ghost. When these few void obstacle techniques were cast, the old ghost used other subtle techniques. It's not that I'm bragging, even if the four-winged fang-hating fang just now went and returned, with his cultivation, my Void Barrier Technique and the Five Elements Forbidden Spirit Formation are enough to charm him for three days, so that he can't enter the door within three days, hehe......"

Li Xiao glanced at the closed stone door with a little suspicion, and didn't bother to explore the truth of the old ghost's words, looked at the gap in the old ghost's words, and asked, "By the way, old ghost, what is this 'spirit cave' all about?"

"The so-called 'spiritual acupoint', in layman's terms, is the source of spiritual power!" The old ghost stroked his beard, his eyes shining, and said: "For example, just like the rivers and lakes, rivers and seas, the reason why the water is surging is because there is a source of living water. This is naturally the same for the spiritual power of heaven and earth. In the legend, the famous mountains and rivers full of spiritual energy are either due to the terrain and let the power of the void spirit converge to it, or it is like mountains, rivers, lakes and seas, with a source of living water, and spiritual power constantly overflows, so that a place with rich spiritual power will be formed within a certain range of the surroundings. ”

"This 'spiritual acupoint' is like the spring of a mountain spring, it is precisely because of the continuous outpouring of spiritual power in the spiritual acupoint that a place with relatively strong spiritual power will be formed, do you understand?"

Seeing Li Xiao nodding blankly, the old ghost smiled proudly, and continued: "Some Qishan Juze full of spiritual energy, most of them have a 'spirit cave', but the place where the spirit of this cave is located is generally very hidden, and some spirit caves are even buried several miles deep underground, and there are various kinds of dark rock essence gold condensed around, even if it is the power of the calamity period, it is difficult to find the power of magic. However, if it is a coincidence and finds a 'spiritual cave', it is a great blessing for both the cultivators and the demon clan. ”

"Blessings?" Li Xiao looked at the old ghost in amazement.

"Nature is a blessing, not what do you think?" Obviously disapproving of Li Xiao's fussy appearance, the old ghost snorted disdainfully, and continued: "Whether it is a cultivator or a demon clan, they all use the aura of heaven and earth to improve their cultivation, and whether this aura is rich or not, it is naturally needless to say that it has a role in improving cultivation. And in a 'spiritual acupoint', it is not surprising that the intensity of the spiritual energy far exceeds that of the outside world by hundreds of times, or even thousands of times. There are some special spiritual acupoints, in which the spiritual energy even turns into reality, condenses into a liquid or solid state, the spiritual energy of that kind of spiritual acupoint, with just a little bit, can make the cultivation climb to an amazing level, this is not a blessing, what is a blessing?"

The old ghost said, his eyes shining, and the greed in his eyes seemed to be about to "turn the virtual into reality", as if a drop of liquid flowed down.

Li Xiao looked at the old ghost in surprise. The aura turned the void into reality, and he naturally knew how terrible the qualitative change was. The cultivation process of the cultivators and the demon clan is nothing more than the process of gathering spiritual energy and turning the void into reality. But the spiritual power in nature can also be naturally turned into reality, and its richness really makes Li Xiao feel unbelievable.

"Since this place is deep underground, and there is such a huge hall, it is obvious that this spiritual cave will not be so simple. ”

The old ghost seemed to have thought of something, and suddenly trembled with excitement, and muttered: "If this spiritual cave is the only spiritual cave in the entire ownerless spirit realm, then obviously the spiritual energy should not be just such a little, maybe this is not a real spiritual cave." But the aura here has reached such a terrifying level, and this real spiritual cave must be around here. ”

"This isn't the real Cave yet?"

Li Xiao was even more surprised this time. Since entering this place, the natural operation of simply "draining" the ability has benefited him tremendously. Now the spiritual power in his body is still slowly climbing due to the continuous absorption of spiritual power from the outside world, if the spiritual power here is still only "so little", then how terrifying should the real spiritual acupoint be?

When they entered this giant hall before, Li Xiao and Tai Suizi had a feeling of being near the deep sea, showing that the spiritual power in this void was already extremely strong. It's just that after staying in this huge hall for a while, my body has gradually adapted to it, and I don't feel any discomfort. But at this moment, listening to the old ghost say this, it seems that in this hall, there should be a place with more spiritual power!

Looking around in a daze, with an excited look on his face, Li Xiao's heart instantly gave birth to a feeling of dazedness.

"Aha! I finally found it, right here, it must be here. ”

The old ghost suddenly let out a cheer, his body collapsed, and the one next to the hill condensed again, and shouted excitedly: "Li Xiao, look, look at the difference here?"

The place that the old ghost was pointing to was the huge stone platform against which the hill was leaning.

"What's the difference?"

Li Xiao looked at it intently, but he just glanced at it twice, and he couldn't help but move slightly in his eyes.

He did see the difference. Xiao Shan was still crossing his knees, and the spiritual power of the surrounding Fang Yuanzhang Xu was still condensed into a trace of spiritual power that converged into its body. But compared to before, these white threads condensed by spiritual power were several times larger than before, especially behind the hill, dozens of white lights and shadows were even condensed to the thickness of a little finger, converging from the stone platform behind the hill towards its body.

"It's different. ”

Li Xiao was slightly taken aback, but his gaze did not pay attention to the white silk condensed by the aura behind Xiaoshan, but fell on Xiaoshan's forehead, and muttered: "Old guy, come and see, what's wrong with Xiaoshan?"

In the middle of the hill's eyebrows, a blood-red symbol was slowly flickering. This symbol image is composed of countless mystical incantations, and in a flash and a moment, it faintly reveals an invisible oppressive force.

The old ghost came over, and after just one glance, his eyes widened suddenly, and he stammered, "Blood, blood, blood imprint?"