Regarding Yun Yeyao's actions, let's start with the mystery of how he entered the murder room, and in the whole case, it is not necessary to wait for the final reasoning to explain everything. In the process, some small questions will continue to come up with answers, and these answers form the general direction of the final reasoning, bringing the final murderer to everyone.

Yun Yeyao conducts independent research on the bedside table in the murder room, the color of the blood and bedding on the large bed, and the only wardrobe in the room, and only by relying on these few things can he get clues to the secret entrance.

Why did the brown and blue towers design as circular staircases spiraling upwards? You can think about it a little, each floor of our common community housing is generally rectangular, there are three households on one floor, due to design restrictions, the walls between each family are basically very thin, that is, there is no extra space.

The rooms that rotate up or down are different, firstly, there is no so-called floor platform, and there is a staircase directly outside the room, and secondly, no matter how you rotate, all the rooms are always on the same wall.

Even if a tower has a total of eleven rooms, and each circle has three or four rooms, the spacing between them will be very large, and at least ten square meters of space will be vacated between the rooms, which is the location of a small room in an ordinary person's house.

Open up those hidden spaces, whether it's installing stairs or extra rooms, no one will know. Assuming that our previous reasoning is correct, both the brown and blue towers are indeed embedded with the main house, and of course this is the key point of the double door secret.

Then, the pit on the second and third floors of the main house must have been built between the cracks of these houses. All that remains is the entrance. In this state, every surface room is bound to have a secret entrance to the hidden room, like a one-to-one ring.

Now ignore the blue tower, where should the hidden entrance to the room in the brown tower be? In fact, when Liu Hang just woke up, he had already explained this problem to us.

He roughly looked around the room, the floor, the big bed, the table and chairs, which could not be the carrier of the entrance, there should be nothing special on the walls, and there was no wallpaper. Then the only entrance can only be in the closet.

The state of the wardrobe I describe is that it looks old and dirty, and people don't want to hang their clothes in it, or even use it. The other tables and chairs are very clean, and the bedding on the beds is not cheap, which only shows that the owner of the treacherous house is unwilling to use the wardrobe in the guest room.

Another factor that can prove this in disguise is that the owner has been in seclusion for many years, unwilling to associate with people, and does not this minimize the number of strangers entering the treacherous house?

As for the rooms of several family members, they are all in the blue tower, whether there is a special place in their rooms, this is a question for the future.

Yun Yeyao once stood in three different places and observed the wardrobe, first of all, the doorway, there was nothing unusual as far as the eye could see; The second is the center of the room, that is, a little in front of the end of the big bed, Liu Hang is also standing here to observe, and it can be determined that there is nothing unusual.

The last place was when Yun Yeyao stood up after checking the bedside table, and accidentally saw the scene between the cracks in the doors of the bookcase, and at this time he realized that there seemed to be something abnormal between the cracks in the doors.

The sudden appearance of the bedside table brought different things, and the bottom step of the big bed is not actually like the housekeeper said, there are drawers where things can be placed. Instead, there is a hidden bedside table with two drawers on it.

The disappearance of the butler shows that he lied about the matter, and we can also hear from the words of the other family members that the butler knows the second and third floors of the main house as well as your master.

When Yun Yeyao found out that there was a secret in the wardrobe, he entered it himself to check, and there can be two guesses here, first, there may be a partition door behind the wardrobe, and Yun Yeyao found the keyhole of the partition door. Second, he found directly the cracks in the wooden planks that could be opened or the small doors that could be opened.

The second possibility can be denied from the actions of Mr. Actor, because after he entered the wardrobe, he spent a lot of effort and did not push any planks away.

So the first possibility is true, the question is where is the key? This brings us to the issue of blue and black. The remarks of Yun Yeyao's blood are actually black, and at this time, the blood is no longer bright red because of the extension of time.

Especially against the background of black, the color will appear darker, so what is written against the backdrop of a large dark tone? The two handles on the bedside table drawer are made to look like blue pearls, small pearls like a cat's pupils.

Even the smallest bright tones in the dark tones of the whole film are immediately noticeable. The drawer was open, and there was nothing in it at all, and Yun Yeyao went to pull the blue pearl handle, but unexpectedly, he accidentally got the key to the secret door behind the wardrobe.

Two pearl handles, hiding two keys, that is to say, the secret door has two locks. It also explains why the bedside table is hidden – the drawer with the key that is out of reach.

After Yun Yeyao got the key, he immediately entered the secret door to check, and behind the door, he found a new room, the hidden room should be about the same size as the outer room, after entering, and then leaving through the inner door, you can see the staircase corridor that also spirals upward.

The staircase corridor here is supposed to be on the periphery of the brown tower, indicating that the outer walls of the tower's rooms are thick enough to hide the invisible staircase space. In this way, the reason why there are no windows on the edge of the brown tower is also explained.

Let's further speculate that if you enter the hidden staircase of the brown tower, if you go directly to the top of the tower on the hidden staircase, and then enter the hidden space outside the blue tower through the hidden door at the top, and return to the bottom of the blue tower, of course, you will also pass by 11 internal rooms. And then you can just go back to a certain direction in the recreation room? So it's not a strange thing to suddenly appear from the toilet in the recreation room.

Well, now these secrets are only known to Yun Yeyao, who returned to the outer staircase of the blue tower at the instruction of Liu Qiao Pu, and followed the mysterious man to the top of the staircase corridor. (Again, there are no windows here.)

Our eyes will follow him for a long time, and at the same time uncover the identity of a mysterious person.