Sherlock Helmes

Dialogue:

three men live in this house which was surrounded by forest. One night, one of the man was killed.

Policeman A: We found the body in his house, he was died and lied on his bed and blood was all over his face.
Policeman B: I think his throat has a hole, may be skiller used knife to sting the throat.
Policeman C: But this room was locked, no one could go in.
Policeman A: Actually, there is a spiracle in front of the body and bed.
Policeman C: the most terrible thing is the mask was thrown everywhere.
Policeman B: I think killer went through the spiracle and then made a terrible apperance to show that he was cursed by legend.

After Sherlock Helmes heard what the policeman said, he began searching this surroundings to find any clues. during this period, He found something.......

Sherlock Helmes thought: Why there is only one mask has covered blood and rest of masks are clean?

He didn't believe any legend, the killer must use brillient method to kill him. He believed the killer is one of two men.

Policeman B: There is another clue, that is rope. But how the killer went into it?
Sherlock Helmes: Maybe the killer never went into it, that guy might kill him from outside.
Policeman C: It's impossible!!!!! Because the spiracle to the bed's distance is far.

Sherlock Helmes ignored him, he just concentrated on this event.

Sherlock Helmes thought: the mask filled with blood might close to the throat, I think the knife was located in mask's mouth.
Policeman A: How about the rope and rest of the masks?
Sherlock Helmes: Maybe the killer used all of the masks to go through the rope one-by-one then passed through the spiracle, the mask with the knife must be front. After that, the killer pulled the rope and let all mask become straight, the knife would close the man's throat.

Policeman C: But it was just close, it didn't sting into it.
Sherlock Helmes: the killer could use his hand to push it then killed him, idiot.
Policeman A: Wow!!!!!! Brillient inference!!!!! But who is the killer?

Two men look nervous and strange. When Sherlock Helmes frisked two men, he noticed that why this man's hand, with glasses, has a little incised wound......