After a little hesitation, Ying Yi took back the skeleton knight, put the frog demon's corpse into the dragon ring, and then picked up the unconscious Feng Yin and Yang and walked along the cracked mountain.

After walking into the crack, Ying Yi was greatly surprised, this mountain was not cracked by the aftermath of the Feng Yin Yang Qi Blade, but it seemed to exist naturally, and the space inside was getting wider and wider, and it was not at all that Feng Yin Yang could be split by a single qi blade.

Countless stalactite-like stone pillars hang upside down on the mountain, and some still have a crystal luster, just like jade.

These stone pillars are the accumulation of chalcedony secreted from the mountain, and the process will be extremely slow, hundreds of years and thousands of years may be able to accumulate arm-thick stone pillars, but here it is a waist thick, and it is still one by one, I don't know how many years to accumulate.

As he walked inside, the more intense the fragrance became, like a wine paste buried deep in the ground, an extremely mellow fragrance that stimulated the true qi in his body to surge.

Ying Yi's face was hot, he thought of a possibility, but he didn't dare to draw conclusions easily without seeing it with his own eyes, but the pace under his feet became faster, and the Feng Yin and Yang on his shoulders were a little painful, and there were a few dull sounds from time to time.

However, Yingyi did not have the slightest scruples, the steps under his feet were unconsciously faster, the road in the mountain was not very easy to walk, and there were some protruding stone thorns that kept scraping his arms, which still limited Yingyi's great speed.

I don't know how long he walked, and Ying Yi didn't count the time, but he only knew that the smell of more and more fragrance indicated that he was getting closer and closer to that place.

Suddenly, Ying Yi stopped, a burst of white mist in front of him floated in the crack of the stone road like a snake, Ying Yi took a deep breath, the white gas snake entered his Qi Sea Dantian along the nostrils, a warm feeling came out of his body, and the previous fatigue was relieved a lot.

"How did you find this place?"

A weak sound came from behind, and Ying Yi's body was tense for a while, and then he reacted that it was Feng Yinyang who was behind him who woke up.

After Feng Yin Yang finished speaking, he was also taking a big breath, and the white mist became lighter along his breathing, and his face became much more ruddy.

Instead of answering his question, Ying Yi said, "Stone Milk in the Center of the Earth!"

"Yes, it's the Milk of the Earth. ”

"Open the mountain rock in front of you, and the core stone milk should be behind this. ”

Feng Yin and Yang's voice fell, Ying Yi did not hesitate at all, and his fingers suddenly turned extremely black, very much like a dry bone that had rotted.

Bang!

Ying Yi's face changed slightly, Jun Yuanfa can be said to be his strongest attack method, he thought it was enough to completely penetrate this blocking stone, but he never thought that it would just penetrate a fist-sized dent, which shows how hard the mountain stone in front of him is.

Putting down Feng Yin Yang behind him, Ying Yi took out the bone knife from his sleeve and slashed directly at the mountain stone, his arm suddenly loosened, and Ying Yi even thought that he had split the air.

I saw that the mountain stone the size of a human head slid down directly, and the cut was smoother than that of the mirror, and I looked at the bone knife in my hand with some distraction, and now I really understood how sharp this inconspicuous bone knife was.

Bang bang bang......

In the dimly lit cave, there was a faint sound of striking iron, and Ying Yi tirelessly chopped down, and his feet were already full of broken slag.

Bang!

Ying Yi slashed down, and the adult-sized stone fell violently, and a huge gap appeared in front of the two of them, and the smell of the fragrance became even stronger.

"I didn't expect me to look away, this bone knife is probably the condensation of the essence of that bone mountain, and that skeleton is just a transformation because of this bone knife!"

Feng Yin Yang looked at Ying Yi with some envy, how could he not know that the real treasure was this bone knife, not the blood-colored skull that had not yet transformed into a colorful imperial bone.

"Really......"

Putting the bone knife in his sleeve, Yingyi replied undeniably.

Walking into the back of the rock, Ying Yi was stunned for a while, even though he already knew that this was the core stone milk, but when he really saw the white lotion like a pool in front of him, he still couldn't help but be shocked.

"You ......"

Feng Yinyang stepped in and was about to speak, but his mouth was like an egg, and he was also speechless.

"This, this, this...... How is that possible!"

Feng Yinyang's voice couldn't help but tremble, and the scene in front of him really shocked him.

Under them, there was a pool of water tens of zhang square, but there was not a drop of water in it, all of it was a milky white liquid like a slurry, exuding an intoxicating aroma.

And above their heads, a chalcedony less than a foot long was dripping white stone milk from the center of the earth towards the water, making a crisp sound like a bell, and the chalcedony was wrapped with solid crystals, like a young dragon carved from a crystal sparkle.

"This ...... Is this chalcedony?"

Feng Yinyang asked with some trembling, and his voice became a little sharp.

"Should... Should...... I guess so!"

Ying Yi's tongue also trembled a little, and he said uncertainly.

Thump!

Ying Yi was dumbfounded for a while, Feng Yin Yang actually jumped directly into the Yuan Pool formed by the stone milk in the center of the earth, and began to practice.

"What are you doing in a daze, come down quickly!"

Seeing that Ying Yi was still hesitating, Feng Yin Yang shouted, and then began to continue practicing.

Thinking of the legend about the earth's core stone milk, Yingyi immediately did not hesitate, and jumped directly into the Yuan Pool, and all the three hundred and sixty-five acupuncture points opened, frantically absorbing the Earth Center Stone Milk in the Yuan Pool.

There has never been a shortage of certain blessed places in the cultivation world, where the vitality is full dozens or hundreds of times more than ordinary places.

When the vitality of heaven and earth is rich to a certain extreme, it will begin to promote some incredible changes in that place, and this stone milk in the center of the earth is one of the many incredible changes.

Heaven and earth vitality is the most mysterious thing in the world, which can make cultivators have great power, can make stupid beasts and flowers and plants cultivate into demons, and can make tyrannical and cruel desolate beasts have the power of cultivators.

And the huge amount of heaven and earth vitality gathered in the mountains and rivers can produce the earth dragon vein, also known as the spirit vein.

Each spiritual vein can make countless cultivators frantically compete for it, that is a shortcut to the road to the strong, the spiritual vein is formed by the condensation of countless heaven and earth vitality, even if an ordinary cultivator becomes a strong cultivator in the Seven Realms, the heaven and earth vitality absorbed in his life may not be able to have more than one spiritual vein.

There will also be some special reasons, when the spiritual veins are formed, they will change and fail, but these heaven and earth vitality will not be lost, but will be completely integrated into the mountains and rivers, which is also the root of the many monsters and monsters in some mountains and rivers.

Although it is not as huge as the Heaven and Earth Vitality of the spiritual vein, it is a cultivation holy relic that is more precious than the spiritual vein for cultivators under the Five Realms.

As for the chalcedony crystals mentioned by the two of Yingyi, there are not many earth-centered stone milks that have not been able to fall to the ground and touch the dust, so little by little, the chalcedony crystals on the top are not more than a foot long, which is more valuable than this pool of earth-centered stone milk.

The cultivators of the Three Realms can use the huge Heaven and Earth Yuan Qi in the Earth Core Stone Milk to turn the true qi in their bodies into the power of the True Yuan as soon as possible, which is far more powerful than the True Yuan they have obtained through their hard work.

Moreover, the Earth Core Stone Milk can make their bodies more pure, and they can fuse more Heaven and Earth Yuan Qi in their bodies, which is several times more than that of ordinary cultivators, making their foundation extremely stable.

Without breaking through the Fusion Yuan Realm, the cultivator would not be able to fuse the Heaven and Earth Yuan Qi, and the cultivators of the Tongqi Realm would only have the True Qi derived from their own flesh and blood, and neither the destructive power nor the explosive power could be compared to the True Yuan.

However, the Earth's Core Stone Milk can transform the true qi in the body of a cultivator in the Tongqi Realm into true yuan, because the Earth's core stone milk is a more refined and pure vitality than the Heaven and Earth Yuan Qi, and the Rongyuan Realm only slowly converts the true qi into the true yuan by fusing the Heaven and Earth Yuan Qi, and without breaking through the Rongyuan Realm, the Heaven and Earth Yuan Qi cannot be fused into the body, but the Earth's Heart Stone Milk can enter the cultivator's body along the pores of the acupoint.

Therefore, the attraction of the Earth's Heart Stone Milk to cultivators in the Tongqi Realm is unimaginable, this is a cultivation holy object that allows them to cross the border to challenge the cultivators of the Three Realms, and transform the true qi in the body into the True Yuan in advance, and when they break through the Rongyuan Realm, they can save an unknown amount of effort, and they can almost cross the lower Rongyuan Realm and directly break through to the Rongyuan Middle Realm.

Ying Yi can cross the border to kill the cultivators of the Three Realms, in addition to the strength of the exercises he practices, the most important thing to rely on is the power of the ancient demons imprisoned in the star core, it is this trace of ancient demon power that provides him with a steady stream of power, and he can have the terrifying explosive power to kill the cultivators of the Rongyuan Upper Realm almost instantly.

However, now the power of the ancient demons suppressed by him is about to be consumed, without this trace of ancient demon power, he is impossible to compare to the recovery speed of the Rongyuan cultivators, the cultivators of the Three Realms can fuse the Heaven and Earth Yuan Qi at any time and transform it into the True Yuan, although the quality of the Taiyin True Qi cultivated by Yingyi itself is not weaker than the True Yuan, but after all, the quantity is insufficient, and it is okay to break out for a short time, but it will not work after a long time.

Ying Yi had a feeling that the true secret of the Yin Yang Tribulation Sutra was about to be revealed, so he was not in a hurry to break through his own realm, so that when the power of the ancient demons in the star core was exhausted, his combat power would be greatly reduced.

Today's Geocentric Stone Milk is really an unexpected surprise, first with the help of the Geocentric Stone Milk, the Taiyin True Qi in the body will be transformed into the Taiyin True Yuan, so that without relying on the power of the ancient demons, it will not be weaker than the Rongyuan Realm cultivator, and the few secret techniques he has mastered can really exert the power it should have.

It is precisely for these reasons that he guessed that there was a stone milk in the center of the earth here, and Ying Yi had become extremely uncalm, and when he really saw this Yuan Chi that was about to overflow like a water stream, he was already a little out of shape.