Xiaoman said: "I used to tell you that the most important thing for us to deal with a case is to be improvised, not restrained. When it comes to footprints, if the best evidence can be used, you can't just change the method and look for clues, and you must not stick to the rules. The crux of this case is the footprints outside the back door, which I dare not ignore, the footprints are from the back door to the bedroom, and there is no mistake in the slightest, so I guess the burglar is completely familiar with the location of the rooms in the house, and not a stranger from outside. Later, Feng Yunqi changed his plan and used it to confirm that he actually knew that he had made a mistake. ”

"I watched the thief come in and walked straight to the second cabinet near the bed, one of which contained opal jewelry. It stands to reason that when the thief enters, he must first come through the first chest near the doorway, but this is not the case, so it can be seen that the thief clearly knows that the second chest contains treasures. It can be seen that the thief not only knew the situation in the house, but also knew which chest the treasure was in. Therefore, it can be determined that the thief is a person who is close to the owner in the house, and is by no means a stranger from outside. And the thief happened to get the treasure, and should have fled immediately, why did he turn over the other chests, and make a mess of his clothes, even the bottom of the chest, but did not steal anything, apparently the thief deliberately arranged the suspicion to make people believe that the thief had made such a mess in search of the treasure. ”

"When I got the footprints, I knew it had to be related, so I looked at it carefully. The footprints are no more than six inches long, and the person wearing the shoes must be of short stature, but the first half of the footprints are very clear, and the second half is blurry, almost invisible, this person must be on tiptoe when walking, and the heel does not touch the ground, and then observe the distance between the two feet, about one foot six or seven inches, at first I didn't understand, and then compared the other traces, it began to be clear. It turned out that the thief must have a burly and tall torso, and he wanted to transfer the blame to others, and deliberately wore shoes of small size, but his own feet were too big to wear, and he was afraid of sound, so he put his toes into his shoes, although he walked with his heels, because he was tall, and the distance of each step was more than one foot, six or seven inches. For short people, the distance of each step is usually at most one foot three or four inches, and if you walk on your toes, the distance must be shortened. Based on this speculation, it is clear that the thief is not "flying in the sky", but someone is impersonating. ”

Jing Mo said: "In this way, footprints are sometimes enough to be used as a basis for solving a case. Assuming he proceeds prudently, goes further, and leaves no trace, then I find it tricky, and I wonder why he is so stupid? ”

Nie Xiaoman smiled sarcastically: "Jingmo, you are too honest!" You still don't understand what I mean, do you? You must know that he is a very cunning person, so he acts like this because he wants to kill two birds with one stone. At first, he wanted to use the name of "Plugging the Sky Fly" to cover himself, but then he thought that it was not proper enough, so he created a fake scene again, found out the shoes of the horse leper, and deliberately left footprints as a way to get rid of the crime in the second step. Otherwise, do you think that walking into the back door alley at night, stepping into the muddy puddle by mistake, and leaving footprints, would Feng Yunqi be so stupid, and you can't help but be observant. You should see that the mud ditch is along the foot of the wall, not the only way to the alley, there is absolutely no possibility of entering by mistake, even if you accidentally step into the mud pool, your shoes are slightly wet, walk into the house, it will dry for a while, it is impossible to see the footprints of leaving the house. As far as I can see, the entry and exit are very obvious, as if the shoes had been soaked in the mud for a long time. So I guessed that he had hidden his shoes in the muddy water in advance, and this is the truth! ”

Xiaoman, who was just getting better, was still a little weak, so he stopped and rested for a while, and Jingmo didn't urge, but stopped waiting for his old friend to rest.

Then, Xiao Man continued: "From the above points, it can be seen that I already have clues, and I know that the thief must be someone from the Li Mansion, and it happens that he is still a person who is familiar with the inside of the house, and this person must be burly and tall, witty and treacherous. Among the servants of the Li Mansion, only Feng Yunqi was the most qualified. He spoke sarcastically, as if he were mocking me, but not without suspicion. But when I thought that Feng Yunqi went to the theater with his master, and no one was there, I was a little hesitant for a while. Thinking of the chef Fat Liu again, he is fat and tall, and he has a lot of strength, but looking at his clumsy face, if he is the main culprit, he must collude with the janitor Ding Lao Butler. I saw that the old butler Ding was like a loyal man, so I was a little hesitant for a while. ”

Stretching his waist, Xiao Man continued: "At this time, Shi Cheng told me about Gao Laosi, and my attention almost shifted to others. Later, thanks to the threatening letter, my train of thought was back on track. The thief sent the threatening letter with the original intention of covering himself, but unfortunately he did not think it through, but instead had a loophole. I've talked to you about this in the past. ”

After a pause, Xiaoman said again: "The case happened that night, and the theater is the Changchun Theater we are familiar with. Therefore, I especially suspect that the thief is Feng Yunqi, although this Feng Yunqi accompanies the master, the seat level of the master and the servant in the theater is different. Feng Yunqi arrived at the theater, pretended to be seated, and then secretly left, and it was okay to go back alone to carry out his theft. Because of the analysis of the location and time, it takes less than half an hour from the Li Mansion to the theater, and it takes a quarter of an hour to walk faster. Feng Yunqi left the theater and went home at one moment, and he could go to Li's mansion at three minutes, and then spend two quarters of an hour stealing, and then quickly rushed back to the theater, and he could send the letter out on the way, and finally re-enter the theater to prepare to accompany his master Li Wenchang home, which was more than enough time. ”

Jing Mo couldn't help but sigh: "This Feng Yunqi can also be regarded as a person with a very clever mind. ”

Xiao Man nodded in agreement, and said: "Since I have such an idea, but I also clearly see that if I follow the rules, I should interrogate Feng Yunqi face to face, once I catch his loopholes and suspicions, it will not be difficult to subdue him according to the evidence, after all, Li Wenchang regards Feng Yunqi as a cronie, if he can't get conclusive evidence, it will be difficult to get his consent, if he asks hastily, not only will it not help, but it will startle the snake and make things worse." I can't help but look for other ways to do so. ”

Jing Mo thought about the previous situation and nodded frequently.

Xiaoman said again: "So the next day, I went to Changchun Opera Garden to investigate, and I heard that Li Wenchang has always been happy to watch plays, and every time he goes to Feng Yunqi, he always follows. Therefore, there are also people who know the two of them among the ushers in the theater. Sure enough, I found a person surnamed Chang, who said that not long after the two arrived at the theater that night, Feng Yunqi went out, and when he returned to the theater, because there were many people, he didn't pay attention. I asked Li Wenchang again if they had told him to go out to buy sweets and snacks after they arrived at the theater, and Wenchang replied that he had not sent him out to buy anything. So I was convinced that I was right. ”

When Jing Mo heard this, he suddenly woke up from a dream and said, "Then your second step of exploration should be to find stolen goods." Did you find the trail in the bathroom? ”

Nie Xiaoman said: "You guessed right. When we went to the bathroom, I had other plans in my mind, but then I accidentally ran into Feng Yunqi who was also there. I first guessed that Feng Yunqi had a conspiracy, and the jewelry stolen might have been hidden in his home first, so I wanted to ask him who he usually interacted with. Later, I learned that Feng Yunqi often went to Peach Blossom Lake to take a bath, so I intended to ask you to go with me to find out the news. Not long after he didn't want to go, Feng Yunqi arrived later. At first, I was a little shocked to hear what he said. I deliberately pretended to be perfunctory with him in order to get out of his tone, and later he said that he had found his shoes behind the temple and insisted that the horse leper was a thief, and I realized that he had changed his strategy and wanted to transfer flowers and trees and put the blame on the horse leper. ”