One step down, there are no steps, according to the previous estimate, I should be more than ten meters underground.

The oil lamps are denser here, and the walls on both sides are like soybeans that wrap around the halo and extend to the end.

I don't know how big it is, and if there are other entrances and exits...... Yu Xiaobai counted the time, more than an hour since the start of the action, the possibility of the shadow clone being exposed was already very high.

Yu Xiaobai still decided to continue exploring, he walked in the corridor where several people were side by side, according to the long-term edification of film and television, he was always on the bank to guard against the hidden weapon mechanism that might emerge from the ground above his head, but until he walked to the end, there was no movement.

Well, it's normal to think too much.

"How can you say that it is also built underground, a relatively hidden place, and the heart is so big that you can't guard against it?" Yu Xiaobai muttered to himself, and criticized the sound of ninja, looked back at the corridor that had walked dozens of meters, and when he first walked, he actually saw a room on each side, Yu Xiaobai carefully held the doorknob and tried to enter, not only was the door unlocked, but there was no one inside.

Due to the tight time, Yu Xiaobai quickly checked, a room seems to be lived, although it is not big, but the bed, table and chairs, simple furniture display are available, which strengthens Yu Xiaobai's in-depth thoughts, and the traces of someone indicate that there will always be something valuable here.

The other room is relatively large, but there is a bunch of messy books, which seem to list strange knowledge in various fields, including very out-of-the-way, books and materials have been frequently turned over, Yu Xiaobai took out a few books and roughly went through them, and many places actually have the annotations of the readers, caprice, densely marked and circled...... Yu Xiaobai looked at the scary books and materials in no less than half of the library with empty eyes, and drew a few more, without exception, or there is a place to take notes, what is this, tirelessly, preparing for the college entrance examination?

Yu Xiaobai opened a book and looked at a chart of the structure of the human body, with a few lines of small characters underneath, "Human organs have heart, liver, lungs, stomach, ......" muttered softly, rubbed his head, Yu Xiaobai suddenly recalled the biological knowledge he learned in the first year of high school, "Well, the biggest organ is the skin." ”

"There is also a research ...... of cells here" Yu Xiaobai casually looked at a few lines, to the effect that it seemed to be a general description and definition of cells.

"Is the largest cell an ostrich egg?" The writer's cognition of cells is obviously subjectively small, wow, Yu Xiaobai suddenly rose to a superiority in IQ.

Aside from these, some of the words about experimental research in the books have already explained the problem, and the books related to human body and medicine in the room are placed in the most conspicuous position, and the degree of wear and tear is also the most, Yu Xiaobai sighed, and he has determined in his heart that this is one of the places where Orochimaru studies biology. Uncle Snake, you are really a good example for the majority of students, compared to your hard work, crying dad and shouting mother, those who are admitted to college, and those who take the fourth-level exam, should be ashamed of themselves.

"But Orochimaru doesn't seem to be ......"

Yu Xiaobai said secretly, he wandered for almost ten minutes, even if he restrained his movements, Orochimaru should have found out and made a classic disgusting appearance. In this regard, Yu Xiaobai had to attribute the reason to the fact that the Ninja Village had just been established, and Orochimaru was busy dealing with other things, and the arrangement here was only in its infancy, and he was lucky to catch a point in time when no one was around.

But Flag can't stand casually, when Yu Xiaobai walked out of the corridor, his vision was broad, and the scene inside made him stunned.

He seemed to have come to a serious test site, the space was quite spacious, there was a workbench on the right, several beds with suspicious use and some bloodstains, an operating table, various knives and tweezers, paper and pens spread out on the workbench, and strangely, a table lamp was suddenly lit.

The light of the lamp illuminated a small piece of the workbench, Yu Xiaobai's body stiffened, and the kunai who had searched the room before and put it back instantly took it back into his hand.

There are people here.

He watched for a few seconds, and when he stopped moving, the underground space seemed to be completely silent, so quiet that even a pin could hear it.

Still without any breath, Yu Xiaobai frowned, and fell into a contradiction in his heart, it is impossible for him to make a mistake in his perception of years of real guns, this place is like this after all, and there is no place for Tibetans...... But why is the lamp on, because I forgot to turn it off before going out?

For a full minute, Yu Xiaobai slowly put down the kunai, his face remained calm, and walked to the left area.

This is undoubtedly one of the laboratories of the many human experiments of the Great Snake Pill, there is no strict regional demarcation, and the things are all placed in a convenient place according to the owner's preference, just like the operating table that can be pushed is not far from the workbench, Yu Xiaobai even thought of the appearance of the Great Snake Pill with a knife and a pen in one hand, stained with blood while forgetting to record.

It's not the time to condemn the other party's cold-bloodedness, not to mention that Yu Xiaobai is still ready to borrow the "results" of the other party's accumulation of blood debts, and he is not a person who only distinguishes between right and wrong.

The things on the left look much more terrifying, a bookcase, in addition to the scrolls engraved with the word "secret", there are large or small bottles, which contain some animal embryos and organs.

Soaking in the anti-corruption potion, the exposed tissues are still quite scary, Yu Xiaobai glanced at it a few times, but he can adapt, he focused on those scrolls, his eyes flashed with intention, even if these are not the lifelong efforts of the Great Snake Pill, they are also the research results here.

Orochimaru is undoubtedly a genius, knowing the fragility of life, including himself who is known as the three ninjas, and turns to pursue immortality, molting and reborn again and again in the anime, relying on Chakra's super energy system, it really looks like he has found the way. Of course, no matter how magical the mystery mastered by the Great Snake Pill is, it cannot be compared with the rigorous system of biology on the earth, before the Medicine Master, the Great Snake Pill has always been a person, and his life is limited, those changes in the human body that are deeply modified to the extreme, there is no theoretical basis, can you really say why it is so?

But Yu Xiaobai doesn't worry so much, he can catch a few forbidden techniques, and by the way, he gave the ring and handed over to work.

There was still no breath in his perception, Yu Xiaobai took a deep breath and stretched out his hand to the scroll of "secret".