Two days later, Gu Chen opened his eyes: "It's too slow, how can the concentration of vitality here be so thin?"

Gu Chen was extremely surprised in his heart, this is a one-star pavilion, it stands to reason that the concentration of vitality in any cave is higher than that of Beikun City, but what he never expected was that it was not as good as Beikun City!

It was as if the vitality here had been drained away, which greatly reduced the efficiency of his Yuan Chao circulation to extract the Yuan Liquid.

There were five thousand more drops of Yuan Liquid in Gu Chen's Yuan Pool.

The top Kun Yuan Cave Mansion of the Nameless Peak Wenxin Cliff, the outer star disciples could only extract three thousand drops of yuan liquid in a month, and the amount of yuan liquid that Gu Chen extracted in two days was almost twice the total amount of others in a month, if other star disciples knew about it, I am afraid they would all go crazy.

This kind of efficiency is simply terrifying, not to mention that Gu Chen is still in the lowest grade abandoned cave mansion!

But Gu Chen was not satisfied with this speed at all.

After cultivating the stone skin vein, his Yuan Tide circulation speed reached twenty times per breath, and even in Beikun City, he could extract a thousand drops of Yuan Liquid every two hours, and if he didn't stop for two days and twenty-four hours, he could extract at least 12,000 drops!

But when you come to Nameless Peak, the efficiency is half lower than that of Beikun City?!

The spirit disciples of the Tongyuan realm may not be able to appreciate the importance of time for spirit refiners, but Gu Chen, who was a semi-holy spirit master in his previous life, knew that once he broke through the Tongyuan and reached the realm of condensation, time was not just time, but a cultivation resource as important as the Yuan Stone, Spirit Seed, and Exercises!

Every spirit refiner who steps into the Soul Condensation Realm is in a race against time!

Because everyone's cultivation is high and low, but the time they have is exactly the same, the same thousand drops of Yuan Liquid only takes two hours for some star disciples, while some take half a month.

Star disciples with high efficiency can use the time spent extracting the Yuan Liquid to improve their cultivation realm!

Fortunately, Gu Chen's speed of extracting the Yuan Liquid was extremely terrifying, even in this case, it was still a hundred times faster than any star disciple on the Nameless Peak!

Gu Chen breathed a sigh of relief, the only benefit of this cave house is that it can be disturbed by no one and feel at ease to impact the realm!

At this time, Gu Chen's telekinesis spread out.

"Well, this guy has already returned?"

His telekinesis sensed that the main soul was in the cave, and Gu Chen looked around, but he didn't see the simple shadow.

Gu Chen felt very strange.

He used his vitality to get in touch with the Heartless Ghost Pupil Gu, and suddenly Gu Chen's eyes widened fiercely.

"This ..... Where is this?"

Through the ghost pupil Gu Chen, he suddenly found that the main soul was in an extremely dark secret passage, this secret passage was very deep, and the main soul kept climbing along the secret passage.

Around the main soul, a trace of vitality is flowing along the secret passage towards the depths of the earth.

"No wonder..... I couldn't extract the energy, it turned out that all of it was sucked into the ground!"

Yuan Qi is lighter than air, and if it is not affected by external forces, it will fly upwards, and now this situation is obviously forced to suck down by external forces!

Gu Chen immediately stood up and walked around the cave, and suddenly, he found a half-human-high cave behind a hidden stone wall!

There are depressions around the cave, which are the fist marks made by the Yuan Soul when he practiced the Haori Golden Light Fist!

Gu Chen immediately understood that it was the main soul that inadvertently penetrated the cover of the cave entrance, and only then did he discover this strange secret passage.

Gu Chen also crawled into the secret passage and soon caught up with the main soul.

The main soul turned back and smiled smugly at him: "Hey, hey, hey!"

Gu Chen also smiled back: "Boy, let's go and see what you find!"

One man and one soul descended through the secret passage of the cave, and after about a quarter of an hour, the two came to a hall.

It is a pure white hall, all made of white bones.

A cyan spirit array hovered directly above the hall, making the entire hall even more eerie.

"The lower realm is forcing the Yuan Array?!"

Gu Chen saw this spirit array at a glance, this spirit array forbade spirit cultivators who had cultivated above the Tongyuan Realm to enter, and it was regarded as a spirit species that was suppressed by cultivation.

Gu Chen was secretly frightened, Zhao Xinren, Fan Haidong and others had mentioned that this cave was opened up by the demon corpse of the dead realm of the sea hundreds of years ago, Gu Chen only thought that it was an untrustworthy rumor, but according to the current situation, this is indeed a cave left by a demon corpse!

In the center of the hall is a large vat made of obsidian.

Gu Chen walked to the vat and suddenly widened his eyes: "This...... This is the Ice Crystal Nucleus!"

The Ice Crystal Core is the evolutionary source of the Demon Ice Blade Spirit!

Gu Chen didn't know that there was such a thing as the Cold Yao Crystal Nucleus in the world, but since she refined the Demon Ice Knife Spirit, the spirit rune of the Three No Ancient Trees showed that the Demon Ice Knife Spirit needed the Cold Yao Crystal Core to evolve.

The so-called evolutionary source is an item that increases the level of the spirit seed.

Spirit seeds below the fifth order, if the joint training is successful, in addition to becoming a more powerful new spirit seed, there is generally a chance of about 30% to automatically upgrade a level.

And the spirit seeds above the fifth order, even if the joint training is successful, will only become a new spirit seed, and will not improve the level.

To use a simple analogy, the second-order rare Ice Bone Knife Spirit and the Ice Flower Spirit can be combined to form a second-order rare Demon Ice Ice Knife Spirit, but Gu Chen's joint training was relatively lucky, not only was the joint training successful, but also directly upgraded by one level, becoming a third-order rare Demon Ice Knife Spirit!

But after the spirit seed is promoted to the fifth order, it can only be improved through the evolution source!

This is also the reason why the spirit seeds used for joint training are all below the fifth order, so that some evolution sources can be saved!

The price of a normal evolutionary source is one-tenth of that of a spirit seed, but the price of some rare evolutionary sources can even be comparable to that of the spirit species itself, all in all, the price of an evolutionary source fluctuates greatly.

Gu Chen had long wanted to let the Demon Ice Blade Spirit advance, and only by advancing to the ninth order could he evolve from the rare level to the mutant level!

It's a pity that he has searched all over the treasure building, and even after searching in the star mirror, he has never seen such an evolutionary source as the Hanyao Crystal Nucleus.

Gu Chen was about to reach into the vat when he suddenly stopped.

Since the demon corpse has opened a cave here, how can it easily give away such a valuable thing?

"Go!"

Gu Chen's mental power moved, and he retreated outside the hall, and the main soul immediately jumped into the vat.

Whoosh~

In an instant, thousands of white bone spears shot at the vat at the same time, and the bone spears kept passing through the main soul, and the main soul turned into a gray shadow floating around in the vat.

Gu Chen's forehead suddenly broke out in cold sweat, this is indeed the Demon Corpse Cave Mansion, if it is a person who is eager for quick success, I am afraid that he has been shot into a hornet's nest at this moment!

The main soul recondensed into a human form, picked up the Hanyao crystal nucleus and jumped back to Gu Chen's side.

Gu Chen smiled slightly, the owner of this cave mansion would probably not have thought that someone would be able to reach the primary stage of the manifestation of the law phase in the Tongyuan realm-the condensation of the law phase!