When you open the cover, the first thing that catches your eye is the title page, which is an introduction to the author of the book, Collins Felix.

Collins Felix, a long-term traveler who has been to the Flame Kingdom, the Gem Kingdom and the Crimson Kingdom, and even the Ice Fields that are covered in ice and snow all year round outside the Four Kingdoms.

Flipping back, it is the other party's total conjecture about the world.

In the other person's view, the world is an irregular flat block, and the sun is a luminous sphere that rotates around this irregular flat block, and when the sun appears on the front side of the flat body, it is day, and when the sun appears on the back side of the flat body, it is night.

The end of the ice field beyond the Four Kingdoms is the end of the world, and if anyone can reach the end of the ice field, they will be able to see the end of the world.

Seeing this, Gray smiled in his heart and looked down too carelessly.

Although this world has extraordinary power, but the cognition of the world, after all, is not as good as the previous life, after all, the aerospace technology of the previous life has been able to visit the planets of the solar system except the earth, and in the process, it has been completely confirmed that the earth is spherical.

The latter is the evidence and observations that the other party has made in order to prove his flat theory.

He once organized a team of powerful blood warriors to prepare to go to the end of the ice field, trying to verify the guess that the end of the ice field is the end of the world, but he encountered many blood beast attacks along the way, suffered heavy casualties, and finally had to give up.

Then he observed the distant ships on Bishui Lake, the largest lake in the Flame Kingdom, and found that as the distance increased, the hull and mast in the line of sight would gradually shrink, and eventually become smaller and smaller, like a model ship, and finally, the hull and mast disappeared from sight at the same time.

"Disappear at the same time? This, this...... Unscientific?! ”

Seeing this, Gray's indifference disappeared, his eyes widened, and he almost blurted out, but fortunately he held back and did not alarm Caroline, who was also reading in the library.

This observation made by Collins Felix has also been done in previous lives, but the result of the other party's observation is that the hull of the ship disappeared first, and the mast disappeared last, which is obviously completely different from the observation of Collins Felix.

"Is there something wrong with the observation, or is it really the case?"

Gray was in doubt.

If it was only Collins Felix's observation that went wrong, or if it was deliberately falsified to prove that the earth theory was false, then the theory of the circle of the earth in the previous life could still be applied in this world.

And if there is no problem with the results of the other party's observations, and there is no deliberate falsification, then it is debatable whether the earth circle theory of the previous life can be used in this world.

Continuing to flip back, this time Gray became serious, but after turning the whole book, Gray never found any more evidence to prove the Flat Theory than the previous "observations".

Gray raised a frown, then quickly unfolded and put the Scales back on the shelf.

Whether the world is round or flat, for him now, in fact, it doesn't mean much, now he, the most important thing is to enhance his ability to protect himself, and now he is seriously insecure.

If you want to enhance your self-protection ability, it is obviously necessary to figure out what kind of change this transformation in your body is.

In addition, through the books he had just flipped through, he already had a rough understanding of the history of the mainland, thinking of this, he walked to the second row of bookshelves and began to rummage through the books about the blood method.

"Summary of Common Blood Beasts", a book that introduces common blood beasts, lists more than 100 kinds of common blood beasts, each of which is accompanied by a picture and text description, so that readers have a clearer understanding of the appearance and ability of blood beasts.

Among them is a description of the Wind Wolf, a blood beast with blue hair, similar in appearance to a normal wolf, and an adult body capable of spitting wind blades.

The juvenile body already has the strength of a lower blood warrior, and the strength of the adult body is comparable to that of a fierce blood warrior, and the titular father of this body, Viscount Fergus, can spit out the wind blade in his mouth, which should be a manifestation of the cultivation of the blood method "Wind Wolf" to the extreme.

"The Origin of Species", a book about the origin of blood beasts.

The book believes that any kind of blood beast, if you trace the source of its bloodline, can be traced back to a certain kind of high-level blood beast, and some can even be traced back to the legendary holy beast or even the divine beast.

The book uses shadow insects as an example to illustrate.

The shadow worm can be traced upwards to the more powerful shadow worms, the shadow worms can be traced upwards to the stronger dark worms, the dark worms can be traced upwards to the shadow worms, and the shadow worms can be traced back to the source of the bloodline, and finally to the hidden butterfly.

This is a terrifying king-level blood beast with stealth ability, and its strength is comparable to that of a king-blood warrior, because of the particularity of the stealth ability, an ordinary king-level blood warrior is not its opponent at all.

Once, it appeared in the territory of the Purple Moon Kingdom, and Richardson's royal family was exhausted, and the three royal blood warriors dispatched failed to leave it behind.

The stealth ability possessed by the other party is too much to guard, and fighting with it is completely blind, and you don't know where the enemy is.

The book wasn't too thick, only a few dozen pages, and the font size was large, so Gray easily flipped through the entire book.

Closing the book and putting it back on the shelf, Gray thought to himself.

"If this statement of the source of the bloodline is correct, I am afraid that the blood method "Wind Wolf" will have a follow-up cultivation blood method, no, then I am afraid it can no longer be called "Wind Wolf", but some other blood method."

"Even this follow-up cultivation blood method, the Fergus family should have mastered it."

The adult physical strength of the wind wolf can reach a level comparable to that of a fierce warrior, which is probably also the limit of the blood method "Wind Wolf", and if you want to improve in the future, you can obviously only cultivate the relevant deeper blood method.

The father of this body, Viscount Fergus, has been a fierce blood warrior for many years, and he still insists on cultivating for so many years, obviously what the other party is cultivating is by no means the "Wind Wolf" that has no improvement effect, but should be a higher-level blood method after "The Wind Wolf".

"Blood Beast Atavism Documentary", a book that records the evolution and transformation of blood beasts into other species witnessed in history, the existence of this example proves that there is indeed a blood connection between different types of blood beasts.

"The Encyclopedia of Blood Laws", a book that records the blood methods that have appeared in the Four Kingdoms, has a detailed description of what kind of blood methods to cultivate, what kind of manifestations and abilities will be produced.

"The Mighty of the Kingdom", a book that records the lives and deeds of the king-level blood warriors who once appeared in the four kingdoms.

……

Gray searched down one after another, trying to find books related to his current physical "change", but after searching the entire row of bookshelves, he couldn't find a description that corresponded to his current situation.

There are hundreds of books, many of which are about blood beasts, and some of them are only for the investigation of the habits of a certain type of blood beast, and there are only less than ten books on the cultivation of blood methods, and Gray has looked through them one by one, but he has not found a description related to the "changes" in his body.

However, in a book that records the habits of blood beasts, I saw the term "metamorphosis period".

This refers to a special period between the growth and adulthood of blood beasts.

During this period, although the blood beast is still in the growth stage, it is about to become an adult, and its body growth rate has reached the fastest, and its demand for various nutrients has also become extremely large, and it has a strong desire to eat.

This phenomenon is quite similar to the changes that happened to Gray, but the difference is that Gray is a real human, while this phenomenon happens to blood beasts.

However, his intuition told Gray that the changes that had occurred in his body should have a great relationship with the "metamorphosis period" of the blood beast, at least some kind of special connection.

But what kind of connection is unknown, after all, the amount of information he has now is too small.

Hundreds of books were flipped, even cursoryly, and some were skipped just by looking at the titles, and the time was close to noon.

Gray was about to leave the library, but Caroline, whose long brown hair was slightly curly, also stood up from the back chair, also intending to leave the library.

"Let's go to the restaurant together!"

Glancing at Gray, Caroline extended an invitation to Gray.

"Yes, Sister Carolyn."

Faced with Caroline's invitation, Gray was slightly stunned, but immediately reacted and nodded in agreement.

Through today's contact, he feels that Caroline is quite easy to get along with, at least better than the seemingly "warm" Mrs. Milan and Bernal, and Ellis, who has obvious contempt on his face.

The other party's attitude towards him is more of a stranger's unfamiliarity, without excessive "enthusiasm" and no outward hostility.

Of course, knowing people and knowing faces but not hearts, Gray could not completely relax his vigilance against the other party just by relying on the slightest contact, and until now, the mastermind behind the assassins has still not been found.

After the assassination of Gray, the mastermind behind the scenes seemed to disappear, and there was no more movement, but Gray knew that the other party was by no means giving up, but must be waiting for the opportunity to strike.

However, Gray doesn't think it's too likely that Caroline is behind it, as he and Caroline don't have a conflict of interest.

As a woman, Caroline will definitely marry in the future, and whether Gray appears or not, the property of the Fergus family has nothing to do with her.

Although there is also a saying about recruiting sons-in-law in this world, and even women inherit the title, in the case of Bernal and Ellis, it is not very likely that Viscount Fergus will recruit sons-in-law from outside.

There is no conflict of interest, and of course there is no benefit, which should be the reason why Caroline treats him indifferently.