"Anyone?"

Shi Chiyan stood at the door and shouted inside, for a long time, almost when he thought that there was no one and wanted to walk in by himself, an old voice slowly came down from above: "There is a price on the book, if you want to buy a book, put the fee in the basket at the front desk, and if you read a book, you will have a four-grade spiritual object every hour." ”

Shi Chi Yan raised his head and asked casually, "What books are there here?" ”

"Long-winded ......"

The old voice muttered impatiently, as if the other party had done something, and soon, there was a sound of objects turning over at the counter at the door, and I saw a quill with Western characteristics flying out from behind the counter, and came straight to Shi Chi Di.

A quill floated over Leng Buding, and when Chi Yan was puzzled, he suddenly felt a wave of soul fluctuations gushing out of the quill, with a little ripple that could not be seen by the naked eye, and quickly submerged into the center of his eyebrows.

"Huh?" The sword eyebrows frowned slightly, and Shi Chi Yan keenly noticed that this quill seemed to be spying on his thoughts, and immediately condensed his soul consciousness, closed the "gate" of his soul to the outside world, and blocked all the soul fluctuations of the quill.

Staring at the quill that looked a little dazed and floated around him, Shi Chi Yan frowned and pondered for a moment, and asked tentatively, "What do you want to do?" ”

Seeing him ask, the quill paused, and then the tip of the pen swiped across the void, writing a few characters out of thin air.

Shi Chi Yan glanced at it a few times, well, I couldn't understand it at all.

It's not that he's illiterate, it's that it's not a universal character in the ghost world, and it's not any kind of writing he's ever been exposed to.

Seeing Shi Chi Yan's face confused, the quill pen shook a few times in place, and he began to write again, this time it was finally written in the general text of the ghost world.

"What book are you looking for?" Reading the words written with a quill pen, Shi Chi was stunned, and suddenly reacted, "So just now, you want to directly spy on my mind and then help me find a book?" ”

Seeing that the quill pen was dotted up and down, Shi Chi Yan smiled dumbly, his eyes swept over the vast and infinite sea of books, thought for a moment, and asked, "Is there a history book about the Seven Realms and Liuhe?" ”

Guided by the quill pen, Shi Chi Yan walked up the stairs to the second floor and came to a row of vermilion bookshelves.

Glancing at the word "History" marked in the upper left corner of the outermost bookshelf, Shi Chi Yan took out a five-grade thunder diamond and asked, "A four-grade spiritual object can be seen for an hour, but what about a five-grade spiritual object?" ”

The quill paused for a moment to write the next "four".

Shi Chi Yan nodded, threw the five-grade thunder diamond to it, and then walked to the row of bookshelves.

Before, he was far away, and there was a ban on the bookshelf, so Shi Chi Di hadn't noticed anything wrong, but as it approached, he immediately felt the breath of time rushing to his face, and it was conceivable that these books would definitely go through the baptism of a long time, and only then would they have the breath of time close to that of spiritual objects in the body of mortal things.

Shi Chi Yan reached out and took a book, although the body was the soul body he had condensed with soul power, but it was no different from a normal body in terms of touch, the moment the fingertips touched the book cover, the shallow breath of time had already penetrated through the skin and into his body.

It was a book made of some kind of animal skin, not too thick, and there were a few words written on the cover, well, the reason why it was a few was because Shi Chi Yan couldn't recognize this kind of writing at all, and because it was written so unrestrainedly that he couldn't even tell how many words there were.

Touching his chin, Shi Chi Yan opened the book, and then stuffed it back into the bookshelf with a helpless expression.

Like the words on the cover, he couldn't recognize the words inside.

It can be seen that the books in this bookstore are not from the ghost world, especially this kind of books with the breath of time, it is very likely that they are from ancient times and even from the flood period, so the words used are also from some civilization in the past.

"Foot girl horse, I can't understand it!" Muttering, Shi Chi Yan took another book, flipped through it casually, and stuffed it back into the bookshelf with a black line again.

The books in the bookstore that can be opened in a place like the Void Market, which connects the Seven Realms and the Six Togethers, are definitely not mortal, and Shi Chi Di is also the first time that he secretly hated that he did not "study" well in the Yin Yang Sect in the past, so he can't even read these books now.

But think about it carefully, even if he has a good "study" in the Yin-Yang Sect, I'm afraid it will have no effect, after all, the Yin-Yang Sect has only been established for more than a hundred years, and I am afraid that there will not be any too deep research background on this kind of books and texts handed down from ancient times.

After flipping through several books in a row, Shi Chi finally found a book that he could understand instinctively on a certain row of shelves.

This is about 60 million years ago, written by a ghost giant who survived the Great War, this is not a pure history book, but more like the memoirs of the giant, which records what the other party saw and heard in the Great War.

"In the seventh trillion and three thousand years of the Flood Era, the strife has become more serious, we are like crazy demons, we have been fighting for 700 million years, no one is worth it, why do we fight, we only know that when we meet each other, we are like demons trying to kill each other......"

"In the ninth trillion and one thousand years of the Flood Era, oh my God, the only demon emperor actually killed Catherine, that is a woman who is regarded as a treasure by both the Mirror Void and the Beast God, and it is the object of admiration of countless chaos gods and demons......"

"In the ninth trillion year of the Flood Era, three thousand years, two thousand years, the only demon emperor was hunted down by everyone for two thousand years, and finally died in the sky above the endless abyss."

"In the ninth and eighth thousand years of the Flood Era, the only Holy Emperor suddenly disappeared, the God of Light and the God of Darkness left, the six main gods of the elements founded the Elemont Mountains, and the six main gods of the rules were divided, and the rise of the heavenly realm came to an end......"

Looking at this diary, Shi Chi Jian's eyebrows furrowed slightly.

Why does the owner of the diary use the word "only" to call this Demon Emperor and Demon Emperor?

Does it mean that these two people are the same person?

Or are they all unique?

And aren't the Demon Emperor and the Demon Emperor both the names of the rank of the seventh order in the Demon Realm and the Demon Realm?

Could it be that during that period, there was only one Demon Emperor in both the Demon Realm and the Demon Realm?

Is his Daoji the same as the "only"?

Shi Chi Yan had 10,000 question marks in his heart, but no one could answer him at this time, so he could only continue to look at the contents of the follow-up diary.

"In the ninth and nineteenth millennium of the Flood Era, the Pangu of the human race actually smashed the boundary core of the original realm, oh my God, they are all crazy, they are all fighting, they say that is the cornerstone of the origin of achievement, is it true? It's a pity that I'm too weak to even have the qualifications to see it......"

"In the first year of the Ancient Era, the Great War of the Flood Wilderness finally ended, and the Three Daos appeared, and they closed the Seven Realms and Liuhe that had just been opened up, and I was also trapped here, a place that made me feel very uncomfortable."

"In the third trillion and two thousand years of the ancient era, we finally broke that barrier and could go to other worlds, but what happened to that?"

"In the third trillion and three thousand years of the ancient era, Zhu * Jingxu, that is the deputy of the God Emperor, the second strongest person in the God Realm, he actually betrayed the God Realm? And why, so many people are chasing him? ”

"In the third trillion five thousand years of the ancient era, I mixed into the team of chasing and killing the mirror void, and met several friends who are also from the ghost world, they are all very good, but they have some quirks."

"In the fifth trillion and one thousand years of the ancient era, Zhu * Jingxu and the God of Punishment and the God of Law fell into the path of reincarnation, he should be dead, right? But I've heard that the path of reincarnation seems to have collapsed because of this......"

"In the fifth trillion and two thousand years of the ancient era, my friends and I are back, I don't think I will leave the ghost world in the future, the outside world is too terrifying......"

Seeing this, the diary was finished, I don't know if the giant didn't write it again, or because of an accident, it fell, but even the diary can be circulated, and there is a high probability that something happened to this person.

Putting down the diary, Shi Chiyan closed his eyes and shook his head, digesting the lot of information he had just obtained.

Most of the contents of this diary are useless, and they record the person's experience in a scattered manner, and because he doesn't know much about the past, Shi Chi Yan can't understand many of the terms in it, such as the only demon emperor, the only demon emperor and other things.

The only thing that interested him a little was the "Boundary Core" written in his diary.

As for the Boundary Core, Shi Chi still understands that every world will have a core, which will be hidden in the deepest part of the space on weekdays, carrying the rules and energy that maintain the normal operation of the entire world.

For example, on the eve of his departure from the human realm, the remnants of the Maoshan faction led by Lear tried to control the core of the old Maoshan faction Dongtian to destroy the Ghost Dao Alliance, but unfortunately in the end, it was the fish dragon and Tang Mu who were more skilled, so that Zheng Duobao and others used the Fenbao Cliff to sit in the core and stop this conspiracy.

However, the realm core mentioned in the diary, Shi Chi Di didn't know which world he was referring to, this giant said that the realm core is the cornerstone of the origin of achievement, and there is Pangu, the ancestor of the human race, among the people who are vying, then the level of this realm core, no, it should be said that the level of that world is simply terrifying!

Of course, which world does the realm core belong to, and how high the level of that world is, Shi Chi Di actually doesn't care too much, mainly because when he saw the word "realm core", he suddenly gave him an inspiration, how to better deal with the many clones he had stripped off.

Whether it is in the ghost realm or the underworld, cultivators cannot have their own personal space like the immortal realm and the demon realm, because both the ghost path and the underworld have certain problems, and they are both incomplete in nature, so they cannot open up a unique space from the soul.

But Shi Chi Di is different, he cultivates a soul path that is compatible with the advantages of ghosts and underworlds, and he also has a secret technique that can open up a temporary cave to accommodate other people's foreign objects.

But even if he has the soul path and the secret technique of the soul country, the cave mansion he opened up is always temporary, once he stops consuming soul power, or if the soul power transmission stagnates after suffering a heavy blow, the soul country will collapse at any time.

Therefore, the best way is to have one thing, which can not only maintain the normal and smooth consumption of energy during the operation of the soul country, but also keep the soul country in a constant state, and expand the area of the soul country simultaneously with the breakthrough of its own cultivation.

To put it bluntly, he needs to use one thing to form the foundation of the constant soul kingdom and achieve the same effect as the "boundary core".

Such a thing not only needs to be able to communicate with one's own soul power, but also has the potential for self-development.

"Fuse all the doppelgangers together, form a Great Dao Formation like the Life Pill, set it up in the soul country, fuse it together, absorb energy by itself through the formation pattern, and through the existence of the formation pattern, let the soul country be completely constant in the body."

Shi Chi Yan whispered the aura in his heart, and his eyes became brighter.

Once the soul kingdom is completely constant, he no longer needs to worry about the millions of underworld Yin souls having nowhere to go, and more importantly, he can better maintain the foundation of the soul body through the constant soul kingdom, allowing him to burst out with more powerful power than before.