When Xie Yunmeng chased to the corridor on the second floor, the black shadow that had just passed through the window had disappeared, and there were a total of six doors in the corridor, Xie Yunmeng did not disturb the people living in the room, but stood at the top of the stairs and observed for a while, then turned around and left downstairs.

Mr. Detective's behavior was very strange, and it stands to reason that he should have observed whether the shadow had entered the room from the outside, that is, if there were footprints with dirt and blades of grass left on the floor in front of any of the doors, at least that would indicate that the person living in this door might be someone who had just gone out.

But in fact, the footprints do not prove anything, first of all, in this house, all the guests and the hosts, all the people have been in the lavender fields during the day, in other words, all the people have dirt and blades of grass on their shoes. They would take off their shoes on the shoe cabinet on the first floor and put on the slippers prepared in the house and go upstairs, so it would not work to observe the mud footprints.

Secondly, even if the shadow went upstairs in the shoes that he had gone outside, what would that prove? Everyone does this when they are lazy, including the three female guests, as well as the mistress of the house. During the day, didn't Canglu Lu and Wen Yuan both walk around the living room in their original shoes? Later, Xie Yunmeng saw them coming in and out, and he didn't think of changing his shoes, but he only thought of changing his slippers when he was about to go upstairs to sleep at the end.

With Mr. Criminal Police's experience in handling cases, he would not ignore this simple inference, so he didn't look at the footprints at the door of the room at all. Besides, his own feet were muddy enough, leaving a lot of marks on the stairs and corridors, and he had already confused the footprints of the black shadow just now.

Xie Yunmeng observed the doorknob on the outer edge of the door at the top of the staircase, the hostess here planted a large field of lavender flowers, if the black shadow just now entered the house directly from the lavender flower field, then his hands and body would definitely be stained with lavender flower tidbits, these white things like cotton wool, it is difficult to clean up.

In particular, the tidbits that fall off during the friction between the clothes and the flowers will cling to the fabric. When you open the door, there will be more or less white tidbits glued to the handle or door frame, the lilac door is in the daytime, if it is glued to white, it is indeed not easy to see clearly, but now it is night, the color will be a little darker than the day, and there is no light in the corridor, Xie Yunmeng turned on the small flashlight on his keychain, and the dim flashlight light made him see the white dots at once.

So just by looking at which door has tidbits on it, you can preliminarily determine which door the black shadow going upstairs has entered. The reason why I say preliminary judgment here is that there are a number of other factors that need to be taken into account in this matter.

For example, is the person who goes upstairs just finished doing housework? Fu blamed his room in the first room on the left hand side of the Westinghouse corridor, although he said at dinner that he would live in the East House today, but now it was very late, he may be tired of doing housework, and he didn't want to go back to the East House, thinking that there was something to do tomorrow, and it was not impossible to go back to his room to sleep.

Xie Yunmeng had been on the periphery just now, and he hadn't entered the Westinghouse living room to check first, so had Fu Zhi been working in the living room? He had no way of judging that.

However, if Fu Zhi really returned to his room to rest, and on the premise that he didn't do any ulterior acts, Xie Yunmeng thought that he was unlikely to be the black shadow just now, because looking at the speed of the black shadow passing through the window, it was certain that he was running, and a man who was tired all day and was about to go back to his room to rest, was it necessary to be in such a hurry?

Based on this, Xie Yunmeng thought that unless Fu Zhi was using housework as an excuse, he wanted to wait for everyone to fall asleep and then go upstairs to kill people, otherwise, his possibility was very small.

As for other factors, there is no need to dwell on them one by one at this moment, as long as we follow Mr. Detective's actions, we will know bit by bit what he thinks!

After coming down from the second floor, Xie Yunmeng did not choose to continue to return to the lavender field to find the other shoe, but entered the living room on the first floor.

He did see white tidbits of lavender on the door, and it wasn't one, it was two doors diagonally facing each other. It may have been the shadow of the shadow before entering the house, or perhaps two people who had secretly entered the lavender field after dinner entered the room at the same time.

Anyway, one thing Xie Yunmeng is sure of, that is, it is absolutely impossible for people who have been outdoors before dinner to leave tidbits on the door, first of all, those who returned to the house after playing cards outside have already changed their coats before eating. Secondly, Wen Yuan said that they also arrived at the Lavender Villa this morning, so no one had entered the room before going to bed.

The hygiene of all the guest rooms, Fu Zhi and the maid did not clean up until the maid got off work, and before Xie Yunmeng followed Fu Zhi to the East House, he could be sure that he had not seen anyone go out again.

There is another thing that Xie Yunmeng is puzzled about, that is, the two doors he found, one of which has a very special room inside, and Xie Yunmeng can't be sure whether there is a person living there, so he must look at the inside of the room to make a conclusion.

Mr. Detective chose to go back to the living room on the first floor, not so much because he wanted to make sure if Fu Zhi had been working in the living room. Rather, he wanted to climb down the downspout outside the kitchen window to the second floor to determine what he suspected.

Xie Yunmeng didn't turn on the light, the light of the small flashlight in his hand was enough for him, and after making sure that there was no one in the living room on the first floor of the Westinghouse, he went directly into the kitchen. Originally, Mr. Detective wanted to climb through the window to the outside downpipe, but after entering the kitchen, his eyes were suddenly attracted by the range hood on the side. Xie Yunmeng stopped and looked at the top of the range hood, and a better idea came to his mind.

So Mr. Detective gave up the idea of going out of the window, and instead stood cautiously on the glass platform on the edge of the gas stove.

——

The Shadow did ignore the lavender tidbits because he didn't think it mattered, and during the day, everyone had entered the lavender fields, so what if they had changed their clothes? Xie Yunmeng had no more basis to suspect him.

This is also a manifestation of the black shadow's overconfidence, sometimes the more inconspicuous the evidence, the more devastating it will bring, the black shadow does not realize this, and Xie Yunmeng subconsciously pays attention to it, so his murder plan is destined to have a flaw, and this flaw may become an opportunity for Mr. Criminal Police to get rid of the threat of death.

The dark shadow in the room sat among the haphazard stacks of furniture, and he listened, and the footsteps outside did not enter the hallway, but stopped abruptly at the edge of the hallway, indicating that his actions had successfully attracted the attention of the searchers on the perimeter, and it was time to clean up the shoes that only threatened him.

However, he couldn't act now, because Xie Yunmeng might still return to the lavender field and continue to look for the second shoe, and the black shadow was not ready to leave the room until someone found the dead body. He couldn't show up too often, because he had promised someone to stay in the Lavender Villa for only one day and not let anyone find out about his existence.

Although it is a lie to stay only for one day, the second half of this sentence is really done, not for the sake of promise, but for the sake of being able to move more easily and spy on those who have been involved in past car accidents. Wen Yuan is one of them, and it is a very important goal.