In the end, Su Junyi still couldn't stop Qiao Xuan and Yin Xiu, and was slightly calculated by the two, so he let Yin Xiu sneak in first, Su Junyi had no choice but to take Qiao Xuan and Yin Xiu into the secret room together.

The secret room is two floors, the outer floor is a circular room, except for the position of the two doors, the walls around are full of books, and there is a climbing frame in the middle of the room that can be adjusted to height, there is no desk, and there is no chair, it looks like a place like a library, if you want to read a book here, you should only sit on the floor.

Su Junyi walked around the room in the morning, got a general idea of the types of books in the collection, and then walked to the password door leading to the inner secret room, thinking thoughtlessly about the nine-square grid combination lock that had no hint at all.

"Uh...... What does this mean? Qiao Xuan and Yin Xiu also sighed at the collection of books in this library, but they majored in mecha driving, they didn't read many books, and they didn't like to read. After sighing, the two of them came to Su Junyi's side, also staring at the nine-square grid, their brains blank.

"Combination lock." This time, Su Junyi was also a little worried.

Su Junyi knew very well how his father set up the mechanism, so he could deduce that there was definitely explosives behind this door just by looking, and the explosives were connected to the combination lock, and if the password was entered correctly, it would be safe and sound, but if the input was wrong, then the two layers of the secret room and everything in the secret room would be blown into slag and could not distinguish you from me.

Although Su Junyi also thinks that a difficult combination lock with explosives should be set up in the place where the secret is hidden, isn't it a bit too much to not give any hints? Even if he is a son, he is not a roundworm in his father's stomach!

"Since it's a combination lock, then senior, you can decrypt it!" Yin Xiu looked at Su Junyi, who was motionless, puzzled.

"I'd like to too, but I can't think of a clue."

"Uh......" Qiao Xuan and Yin Xiu glanced at each other, and decided to help Su Junyi think of a way, "Junyi, do you know who built this place?" ”

"My father."

"......" Qiao Xuan and Yin Xiu's only impression of Su Junyi's father is the name of "genius", the genius researcher of Bo Laixing, "Didn't that uncle leave you any clues?" ”

"If I had thought about it, I wouldn't have been standing here."

“…… So what to do? ”

"I don't know." Su Junyi rolled his eyes.

"Didn't my uncle leave something for the senior?" Yin Xiu was thinking very hard and hard.

"Stay, the things he left behind are stacked on top of each other, and they are up to my chest." Su Junyi didn't expect that he would unknowingly bring out so much information collected in his hometown this time, and he had read most of it, but it didn't seem to have anything to do with passwords.

"How many forms of passwords do they have?" Yin Xiu suddenly bumped Qiao Xuan with his elbow. She remembered that this was an elective course in the mecha department that year, and the teacher lectured on a semester of classes in a long way, and their final exam was also secretly brought into the examination room with a cheat sheet, and now after so many years, everything that should be forgotten and what should not be forgotten has long been forgotten.

"You ask me?" Qiao Xuan glared at Yin Xiu. They all copied that lesson back then, who can be better than whom?

"You're a senior!" Yin Xiu said confidently.

"......" Qiao Xuan couldn't say anything except stare.

In the midst of the noisy chatter of Qiao Xuan and Yin Xiu, Su Junyi's mind suddenly flashed with inspiration, and he suddenly turned around and walked back to the outer stack, standing in the center of the stack, looking around.

"Junyi, what did you come up with?" Qiao Xuan and Yin Xiu were startled by Su Junyi, who was moving quickly, at the same time, and turned around and followed after coming to their senses.

"Here, the books in the fourth row of twenty-three columns." Su Junyi didn't explain to Qiao Xuan and Yin Xiu, but just pointed to the location directly.

“…… Oh. Qiao Xuan immediately walked over, took out the book that Su Junyi wanted, trotted back to Su Junyi, and handed the book to Su Junyi.

Su Junyi opened the book, turned directly to a certain page, and after scanning it, he closed it and stuffed it back into Qiao Xuan's hand.

"Put it back. Seventy-eight columns in the sixth row. ”

“…… Fifteenth row of twenty-six columns. ”

After going back and forth several times like this, Su Junyi finally fell silent, stood in place and meditated for a while, turned around and strode back to the password door, and entered some kind of password without hesitation.

"How...... No response? Half a minute after entering the password, the door did not respond at all, and Yin Xiu was a little dazed. Could it be that the senior guessed wrong?

Qiao Xuan didn't dare to speak, he only turned his head to look at Su Junyi's expression, and seeing that Su Junyi was expressionless, he made a silent gesture at Yin Xiu.

Yin Xiubian flattened her mouth and stopped making a sound.

After another two and a half minutes, Su Junyi was like petrified in place, staring at the nine-square grid on the door expressionlessly, and suddenly there was a soft "pop", and the metal door in front of him slowly opened inward with a "creak".

The corners of Su Junyi's mouth lifted, and the sense of accomplishment of solving his father's puzzle made him show a rare smug expression.

Qiao Xuan and Yin Xiu looked at each other and smiled, standing behind Su Junyi and waiting for Su Junyi to step into the inner secret room first. This is the place left to him by his father, and Su Junyi should be allowed to go first.

After being proud, Su Junyi immediately became cautious, took a deep breath, and cautiously took the first step.

Even if the hardest password is cracked correctly, there is no guarantee that there will be no more accidents after the final hurdle that seems to be about to burn the jade. His father was the kind of person who liked to be surprised.

The inner chamber is made of a special metal, the kind of metal Su Junyi has seen on a planet outside the galaxy, it is a metal containing radioactive materials, although this radioactive material can not say that it can kill people, but it is absolutely impossible to be healthy after being irradiated for a long time.

Protected by this thick layer of metal, in the center is a huge metal box that looks like a coffin popular in the Middle Ages in Europe and the Middle Ages, with a heavy iron chain wrapped around the outside of the box, and nine large locks on the chain.

Su Junyi held his forehead. If his father was still in front of him, he would definitely beat people! If you want to design, you can design a few tricks that no one can solve, okay? Is this kind of low IQ and no level just a waste of time to put obstacles aside? Is his father too idle?

In the middle of the atmosphere, Su Junyi's communicator thought that it was Arthur.

Su Junyi raised his eyebrows suspiciously and connected the communication.

"Hey, Arthur, what's wrong?"

"What? Are you busy? Hearing Su Junyi's eagerness to get to the point, Arthur was slightly stunned.

"Well, I may have found what my father left me." Su Junyi's expression was a little excited.

“…… yes, congratulations. Do you still need to verify it? Then I won't bother you, and I'll contact you in the evening. ”

"Okay."

So the communication ended, and it was the shortest phone call between Su Junyi and Arthur.