Well, Liu Manman is indeed not as careful as Cheng Yu.
"Go and close the bedroom window first." Cheng Yu seemed to be inspecting the terrace door carefully and ordered.
Liu Manman followed her instructions and closed the open window in the bedroom, and then asked, "Do you want to close the curtains?"
"Well, zip it up, then come out and close the bedroom door."
Although Liu Manman didn't know what was going on, the murder scene was clearly in the bedroom, but now he closed the bedroom door. What was Cheng Yu going to do?
But she still followed Cheng Yu's instructions one by one, and finally stood behind Cheng Yu and asked: "What are you doing?"
Cheng Yu stretched his hand back to tell Liu Manman to stay away from him, then stood up, pointed in the direction of the ground and said, "Look, there is a little bit of very fine powder on this door frame."
Liu Manman looked over Cheng Yu, bent down and looked for a long time, and finally saw about two or three gray powders that Cheng Yu said.
"What's this?"
Cheng Yu didn't answer, but pointed to the crescent lock on the waist of the terrace door and said, "Look here."
Liu Manman looked at the crescent lock again, and immediately understood what the gray powder was: "Did it fall off the crescent lock? Patent leather, right?"
Cheng Yu nodded and said: "I have been in and out of the balcony of my room many times. No matter whether the crescent lock is opened or locked, there is no obvious friction. Therefore, the murderer is just as I imagined, from this door."
In and out.”
"But it's locked here. How can the murderer open the crescent lock from the outside?"
Cheng Yu didn't say anything, but just turned the crescent lock. It seemed that even without the latch lock on the outside, the door was locked from the inside. In theory, it could never be opened from the outside.
However, Cheng Yu then gently pushed the glass door, and the glass door began to shake slightly. Liu Manman could see clearly that the reason why the glass door shook was because there was a gap between the edge of the glass door and the door frame to prevent
The door made a crashing sound when it was closed, so it was covered with a layer of rubber material. It was this kind of edge, because it was made of rubber, so it was elastic. Under Cheng Yu's conscious push, it seemed to fit perfectly.
The glass door began to shake.
And as the glass door shook, a miracle happened. Liu Manman watched helplessly as the crescent lock that seemed to have been locked slid down little by little, and finally showed an open mode.
"Because Bai Xiaowen's room had to be locked, it gave the murderer an opportunity. He should have added a little thickness to the crescent lock of the door. This can be achieved through many means, such as a small piece of
Thin tape. As long as it is attached to the inside of the crescent lock, the crescent lock cannot be completely locked." Cheng Yu said while demonstrating to Liu Manman. It turns out that after the crescent lock is pushed up, the inside of the lock will not lock.
There is a slight groove, although there is only a slight depression, but it is this small depression that catches the crescent part of the crescent lock so that it will not fall off anyway to ensure that the lock is in closed mode. But if
If the groove is blocked, the crescent part cannot be locked. By repeatedly shaking it like Cheng Yu just did, the crescent can fall down, so that the door locked from the inside can be opened.
"There is such a method...Cheng Yu, how many years of experience have you gained as a flower-picking thief?" Liu Manman sighed while slandering Cheng Yu.
Cheng Yu said angrily: "You can gain knowledge by reading a few more mystery novels. There are far more people in the world who know this than you think. You, you should read more books in the future..."
"I read and read..."
"What are you reading?"
"Instructions, as a marketer, I must be very familiar with the product instructions for sale..."
"Get lost!" Cheng Yu didn't want to talk to this crazy woman anymore.
The door through which the murderer entered and exited, as well as the method by which the murderer entered and exited, have been cracked. As for the lock outside, it was only used to lock Bai Xiaowen. For people outside, it was not a big deal at all. For example, take the heroine in front of you.
, she claims to be able to open three such locks in one minute.
Of course, there are actually simpler ways to unlock the lock outside. In short, the mystery of the secret room has actually been solved more than half.
Next, what needs to be solved is the mystery of how the murderer was able to restore the crescent lock to its locked state after leaving.
However, for the heroine, she thought that another mystery was more urgent. She asked: "But if the murderer wants to open the crescent lock in this way, there must be something going on. I can hear a trace even in broad daylight.
Si, if Bai Xiaowen is not a dead person in the middle of the night, she won't be able to notice it at all, right?"
Cheng Yu nodded and said: "This little movement will definitely not disturb the people in other rooms, such as you next door. Moreover, when Bai Xiaowen died, you would most likely not even be in the room..."
Liu Manman blurted out: "Then where am I?"
Seeing Cheng Yu looking at her like an idiot, Liu Manman suddenly realized: "Oh, you said before that Bai Xiaowen died before two o'clock, so I was in your room at that time. Damn it, isn't that true?
It's very thrilling...I mean the murderer. If I come back from the roof, the murderer just leaves Bai Xiaowen's house, won't I catch him?"
Cheng Yu nodded and said: "It is indeed possible, but the probability is really low. It will take some time for the murderer to enter the house, and it only takes a few seconds to come out. It is really not easy for you to bump into him."
"Of course the murderer goes out quickly, but he still has to lock the door. That will take time, right?"
Cheng Yu nodded and said: "Well, of course it will take time, and it will take a long time. Therefore, he locked this door not just after he killed Bai Xiaowen."
This chapter is not over yet, please click on the next page to continue reading! Liu Manman was puzzled again and asked: "Why is this? How did you judge it?"
"If you want to close this crescent lock, you must have enough light. You should also think that the murderer can only accomplish this through that window. Therefore, the murderer cannot do it smoothly just after killing someone.
Close the crescent lock."
Liu Manman understood, she said: "Because he didn't dare to turn on the light!"
Cheng Yu nodded and said with a smile: "So, locking the Crescent Lock can only be done after dawn. Although it is very risky, at dawn, everyone is the most relaxed.
It is also the time when we sleep the deepest, and even the night owl has already fallen asleep. So, from a certain perspective, that time is also the safest time."
Liu Manman understood completely and said: "Well, according to what you said, in fact, when I came back from you, even if I met the murderer, as long as he squatted down in black, I might not be able to find him. On the contrary
It will make him see everything I do. It’s really scary when you think about it.”
The probability of this happening is also very low, but it is indeed possible.
"Okay, but you haven't finished answering my question yet. That little movement won't disturb the people in the other rooms, but Bai Xiaowen can't be so heartless, right?"
Cheng Yu nodded and said: "So, Bai Xiaowen should have been unconscious at that time. This is also the reason why the murderer had to strike so early. If it were too late, although it would be more convenient for Old London to recharge, it would be more convenient for him to act.
The effects of the drug may have worn off."
"So you are saying that when we asked Old London to lock Little Green Tea's door from the outside, the murderer had already drugged her?"
Cheng Yu nodded and said, "But it's not medicine, it's a special kind of incense."
"Mixiang?" Liu Manman frowned and said, "Why do you look more and more like a flower-picking thief? Do you also know this kind of thing from mystery novels?"
"That's not true. It's from the movie. I forgot which movie it was. Anyway, it's a spy movie. There is a volatile agent mentioned there that will continue to evaporate like perfume. If it is in a
In a confined space, the incense will not cause coma at first, but due to its continuous volatilization, people in the confined space will continue to inhale more incense. When the dose reaches a certain level,
After that, the person will fall into a coma."
Liu Manman understood again, she said: "I understand, it's like gas poisoning. Nothing happens at first, but after you inhale enough carbon monoxide, your consciousness will begin to blur, and the oxygen in the blood will interact with the carbon monoxide.
The oxidation reaction turns into more stable carbon dioxide, which deprives the brain of oxygen and ultimately leads to death."
"The principle is definitely different, but the process is almost like this. And the volatile agent must have a limited time limit, so the murderer had to start between one and two o'clock. The time you locked Bai Xiaowen's door was twelve fifteen
Before and after, this means that the murderer took advantage of this time to put the volatile agent in Bai Xiaowen's bedroom. After a certain period of time, the effect of the incense reaches its maximum, and the murderer must take action within this time period, otherwise,
When the effect of the incense wears off, he may not be able to kill Bai Xiaowen so smoothly. Once Bai Xiaowen makes any movement before his death, his identity may be discovered. For the murderer, Xie Yanwen, who stayed up all night,
It’s really a huge obstacle. If there is even the slightest movement, he might discover it.”
Liu Manman frowned and tried to think back: "We probably didn't enter Little Green Tea's room last night. Logically speaking, no one had the chance to put in any incense."
"But some of you must have checked the window in Bai Xiaowen's bedroom. Although the windows and doors in all rooms have the same settings and specifications, there may be slight deviations. What if the opening angle of Bai Xiaowen's window is different?
If Bai Xiaowen is bigger, she can get out, which is obviously something no one wants to see. So someone will definitely raise this point."
Liu Manman nodded and said: "Yes, yes, it was Guo Pingan who brought it up. But it seems that it was not Guo Pingan who went to check it. I didn't pay attention to this. I only remember that after Guo Pingan raised this point, he kept saying
He stood next to me and did not walk over, so one of Su Xi and Xie Yanwen must have checked."
"Why can't it be your cousin?"
"Now we are discussing the choice of the murderer. The murderer needs to put incense in order to commit the murder. I don't know if my cousin has incense. He doesn't intend to kill anyone and he doesn't have incense. Why should he check the window? It's for sure.
It was the murderer, right?"
Although it was a bit unconvincing, the possibility that Deng Jingliang was the murderer was indeed very low, so Cheng Yu did not continue to argue with Liu Manman on this point.
However, if the murderer can only be one of Su Xi and Xie Yanwen...
Cheng Yu's heart sank slightly because he thought of the worst possibility.
