In the afternoon, after finishing his practice, Grey went to the library.

He has read all the books about common sense introductions in the library. As for other miscellaneous books such as travel notes and biographies, he is not very interested, so he is not as frequent in the library as before.

Gently pushing open the door of the library, Grey looked at the white round table on the right side of the library.

Not beyond his expectations, Caroline was sitting there quietly, holding a book and watching with relish.

She was wearing a blue wrinkle group, her legs were elegantly stacked together, her long brown hair was tied into a ponytail, and her blue eyes stared at the words in the book, and her face occasionally showed a look of sudden realization.

Unlike Gray's rough reading method with a strong purpose, she prefers to study and understand the sentences and vocabulary in the book word by word, which makes her look more detailed than Gray.

Next to the round table, there was another person beside Caroline.

The man was wearing a white pleated long skirt, with a well-proportioned face, fair and delicate skin, and had long golden hair. He was dispersing and behind him, and a cool breeze blew in from outside the window, and his blonde hair fluttered slightly.

This person is naturally Perry.

Gray's entry immediately made Caroline and Perry discover, both of whom raised their heads and looked at Gray.

Caroline nodded slightly, while Perry said slightly curiously.

"Why are you here?"

In the past few days when she came to the castle, she had not seen Grey come to the library. When she suddenly saw him, she couldn't help but feel a little curious.

When he heard the other party's words, Gray immediately guessed that in this person's eyes, he might have formed the impression of "unlearning and ignorance" and "no chance of getting along with books". He did not explain and shrugged.

"I'm a little idle, so I came here to find this book!"

"Understand, do you need me to recommend it to you?"

Perry looked like "I'm more familiar than you" here and said to Grey.

"Uh, no need."

Gray rolled his eyes in his heart.

This young lady has only lived in Fergus Castle for a few days. She only went to the library a few times. In terms of familiarity with the library books, how could he be familiar with him?

This young lady is not polite, she actually has the courage to recommend books for him.

"You're welcome."

Although Caroline is the one who is most familiar with this library, he knew that Gray and Caroline were not the same father and mother and might not have a good relationship, so Perry took the initiative to take on the "heavy task" of recommending the book to Gray.

"It's really not necessary."

Gray was ashamed, he was really not polite.

He came to the library just to pick a book he wanted to read. If Perry recommended it, it would be fine. If he recommended the kind that he didn't want to read and it was difficult to refuse, then he would probably be depressed this afternoon.

"Okay, if you can't find a suitable one, let me know and I'll recommend it to you."

Seeing that Gray repeatedly refused, Perry had to nod.

"Yeah, OK."

Gray finally breathed a sigh of relief.

At this moment, Caroline raised her head, first glanced at Perry, and then looked at Gray strangely.

Seeing the other party's eyes approaching, Gray cast a "dissatisfied" look and blamed the other party for not explaining it to him. However, Caroline smiled slightly, then immediately lowered her head and looked at her book.

Seeing the other party, Gray couldn't help but smile. Unexpectedly, his sister had such a "devil" side.

After finding the bookshelf for blood-spreading, Gray found a book called "Mutation of Blood Beasts".

Holding the book, Gray came to the white round table, pulled a chair open and sat down.

I opened the pages and was about to look through them, I immediately smelled a faint fragrance coming from beside me.

When he turned his head, he saw Perry not far away looking towards him. A strand of golden hair slid on the white round table, and it was as soft as gold threads.

"Do you like books like this?"

Perry said with a frown.

"Well, I'm very curious about the Blood Beast."

Gray nodded.

His transformation ability is related to the blood beast, and only the blood of the blood beast can promote his transformation, so he wants to store as much knowledge as possible about the blood beast.

"What are you curious about?"

Perry couldn't help asking.

"I am curious about their strange abilities, as well as the blood evolution and blood deterioration that occur in them."

Gray thought for a while.

"So, there are a lot of these books in Sidney Castle. Well, if you go to Sidney Castle next time, I'll take you to see it."

"Thank you then!"

Gray thanked.

It is certain that the Sidney family's library is larger than the Fergus family's library. There must be more books, and perhaps we can find a description similar to his current situation from these books.

After a few conversations, the two ended the conversation and began to read their respective books.

As the pages turned, Gray was gradually attracted by the contents of the book.

"Mutation of Blood Beast" is a book that introduces the mutation phenomena that occur on the blood beast. In short, mutation means that a certain aspect of the ability of the blood beast has changed.

For example, the power is stronger than the blood beast of the same type, the speed is faster than the blood beast of the same type, and the recovery speed is faster than the blood beast of the same type...

There are many types, of course, not only good mutations, but some mutations will have bad effects on blood beasts, such as if they are weaker than blood beasts of the same type, and their abilities are weaker than blood beasts of the same type...

The whole book is recorded around this phenomenon and published the author's own speculation about this phenomenon.

"Mutation is an incomplete form of blood evolution and blood deterioration?"

Before he knew it, Gray was already leaning on his chin with one hand, thinking about the author's speculation.

According to the author of this book, mutated blood beasts are a special situation caused by the evolution of bloodlines and incomplete bloodlines.

Simply put, when the bloodline evolved, only some characteristics evolved, but some characteristics had not evolved, resulting in this blood beast being stronger than the same type of blood beast, but not as good as the higher-sequence blood beast.

The same is true when blood vessels are deteriorated. Some physical characteristics have deteriorated, but some physical characteristics have not deteriorated, which makes this blood beast weaker than the same type of blood beast, but stronger than the lower-sequence blood beast.

"It's really that way?"

Gray raised his eyebrows.

The views of the author of this book are very different from the understanding of mutation formed in his previous life.

According to previous lives, mutations are differences in morphological characteristics, physiological characteristics, etc. between biological generations or between different biological individuals of the same generation. This mutation is strange and has no clear direction.

But if the author of this book says, the mutation is directional, either approaching the high-sequence blood beast or approaching the low-sequence blood beast.

Because the direction is fixed, to some extent, this cannot be called mutation. After all, the main feature of mutation is random and directionless.

"This view...is problematic, but I have learned too few examples of mutation and have never even been exposed to it..."

Gray shook his head, adhering to the common sense formed by mutations in his previous life, he did not agree with the author of this book.

However, the variation he knew was only seen from books and had not really experienced it, so he could not produce strong evidence to deny the other party's view.

As for the mutated blood power recovery speed on his own, it was just a fake. His blood power recovery speed was not much different from that of Bernal and others. The reason why Viscount Fergus and others believed it was entirely because he had the power characteristics of the Cold Tiger and did not use blood power in the battle.

Time passed without realizing it, and soon it was getting late. In the evening, a servant had already come to inform him to go for a meal.

Gray, Caroline and Perry stood up and walked towards the restaurant.

Follow the stairs on the second floor to the first floor lobby, then go from the lobby to the left, pass through a passage, and arrive at the entrance of the restaurant.

Green looked into the restaurant casually. The next moment, his heart suddenly pounded and cold sweat slid down his forehead.

A corner of the restaurant was blocked by a cabinet, and a blurry figure appeared in the place where the shadow appeared.

The servants in the restaurant went in and out, and some passed by the figure less than half a meter, but none of the servants found this figure, and the figure seemed to be only able to see it.

The answer is already very obvious. The other party must have used some ability to hide in the shadows and hid his body in the shadows, causing others to not see him at all.

The reason why he was able to see the other party was naturally because of the infrared perception obtained after swallowing the Shadow Snake's blood.

The body can be hidden in the shadows, but the infrared rays emitted by the body are obviously unable to be hidden, so they were seen by Gray.
Chapter completed!