Originally, the man still wanted to have a good night's sleep, but he didn't expect someone to wake him up, but he didn't want to, and when he opened his eyes, a knife was put on his neck.

The man didn't dare to make a loud noise, he whispered: "Hero, spare your life, I, Zhu Laosan, have never done anything hurtful, and occasionally went to the kiln, but I didn't pay on credit, it was nothing more than bargaining, could it be that if my sister asked you to pay for it, I can give it to you right now, you see, okay?" ”

Yang Shirt covered his mouth and said, "Don't talk nonsense, I don't want your money, you stand up for me now and turn your back to me!" ”

That Zhu Laosan stood up obediently and turned his back.

Yang Shirt said: "You raised your head, did you see the key on the wall, tell me, how are the keys arranged, where is the key?" ”

Zhu Laosan's face was full of sweat, he said: "Big brother, master, this key, I can only take care of it, but how to arrange it, this is really embarrassing for the little brother, really, master, the little brother only knows that this key has to be rearranged once a day, this is the traditional rule, every day, the crown master will come to take a piece of paper, according to the things on the paper, rearrange, this is a confidential thing, the little brother is really dead and doesn't know?" ”

Yang Shan recalled that when he and Yana went to see Taozi with the guards that day, the guards knew that it was the key, and at night, there were no guards who were in charge of the key, only two small soldiers on duty, Yang Shan asked again: "Then, do you have the piece of paper that the crown master is looking at here?" ”

Zhu Laosan said: "Hero, this little brother doesn't know either. ”

Yang Shi scared him and said, "Okay, you don't know anything, what's the use of asking for your life!" ”

Zhu Laosan hurriedly said: "No, no, hero, master, although I don't know if the paper is here, but the younger brother knows that the guard who is responsible for opening the door has his own table and a lock lock, you see, it's in that position!" ”

Zhu Laosan pointed to the side, there was indeed a table with a lock there, Yang Shirt said: "Then you mean, you don't have the key to this lock anymore?" ”

"Hero, I really don't, I ......"

Before Zhu Laosan finished speaking, Yang Yi had already knocked him unconscious.

This kind of lock is very easy to pry open, Yang Shirt found an iron rod, easily pry it open, inside the table, sure enough, there is a piece of paper, but a picture drawn on the paper, Yang Shirt can not see what the law is, a bit like the nine-square grid, there are words in the nine-palace grid, Yang Shirt looked up at the keys that hung half of the wall, only to see that there are some words written above the key ring, these words are two symbols overlapped, which is a bit like the upper and lower lines of gossip.

"Gossip?" Yang Shirt seemed to have a little eyebrows, and he looked at this picture carefully, Jiugong Geri, the middle grid, there is no text, a circle around, each grid, there is a word, the embodiment of these words on the wall, is the combination of the upper line and the lower line.

Yang Shanxin said: "If you say that every time you change the location of the key, you have to look at the diagram once, then this diagram must be the basis of the law!" ”

I saw that the order of each character on the wall from left to right was different from the order of the rotation or reversal of the nine-square grid, so Yang Shirt had an idea, that is, the real order is according to the order of the nine-square grid, for example, the first key of the upper line is, dry, and the dry of the nine-square grid is in the middle of the sky, and, earth, then, in order, if the sky is one, the stem is two!

Thinking of this, Yang Shirt felt hopeful, he looked at the wall carefully, he found that there was a text on the wall that did not hang the key, this word is a new word, and this place, there are traces of frequent friction, Yang Shirt said: "The background wall of this word, often wiped, that is to say, this word, every day a change, which word is written on it, then, this word, the base number is one!" it! This is too complicated, a bit like the 1234567 of music, C key, that is, C is 1, D key, is D is 1, yes, then, the word on this wall, is a taxi, then, this taxi is equivalent to 1! The last word of the taxi, in the Jiugong Geri, is followed by, then, by, is 2, the first word of the taxi, soil, is 0! ”

Thinking of this, Yang Shirt was a little excited, the nine-square grid represents the number from 1 to 9, and the upper and lower lines on the wall are equivalent to ten digits when combined, and what appears on the wall that the nine-square grid does not have is equivalent to 0!

Yang Shirt wanted to experiment, he deduced a key representing No. 57 according to the nine-square grid diagram, he covered his mouth, pretended to cough all the time, walked to one of the roads, and said to the guard with a knife: "Little brother, the key fell to the ground just now, I want to confirm whether this key was mistaken by me, go and check, you can be accommodating!" As he spoke, he slipped some money into the guard's pocket.

The guard looked impatient and said, "You have to hurry! You're not a guard, you have very little power, it's like watching the door and the key! Just go! ”

Yang Xian breathed a sigh of relief in his heart, he came to the gate of No. 57 Prison, and when he said goodbye to the key, he could hear his heartbeat, and he shouted in his heart: "God bless!" God forbid! ”

With sweaty palms, he began to turn the key, and at this moment, a miracle happened, he actually twisted the key.

At this time, the prisoner inside heard the commotion, ran to the door, and said, "Who?" My lord, I opened the door in the middle of the night, didn't I want to beat people, I'm very obedient? I remember, I'm not dead yet, right? ”

Yang Yi ignored him, twisted the key back again, he just pulled out the key, turned his head, and the guard who let him in, with a blue face, appeared in front of him.

Yang Shirt because when he tried the key just now, his mental attention was on the key, so the guard came to his side, he didn't know it at all, he was startled, and then calmed down and adjusted his mood, he still lowered his head and said, "Little brother, excuse me, I've finished trying the key!" ”

Before the guard walked to the door of the cell, he tried to push, snatched the key from Yang Shan's hand, locked it again, and then gave the key to Yang Shan, letting Yang Xie go. The guard was also wary.

After Yang Shirt entered the house, he was really ecstatic, he still remembered the number of the cell where Taozi was, so after he put the key No. 57 back, he took off the key to the cell where Taozi was and hid it on himself.

Yang Shirt went out of the house, and quietly came to Yana at night.

"Brother, how's it going?" Yana asked with concern.

Yang Shirt said: "Quick, take out a random handful of the keychain you brought and give it to me, don't ask so much first!" ”

Yana didn't ask much, and took a random one of the keys that Guanyou threw to Yang Shan, and Yang Xie then returned to the room and hung up the key.