Mr. Sherlock. My name is Helen. my sister is dead. Can you help me find the murderer?
Miss, I'm Watson. I'm Mr. Sherlock's assistant. I'm very glad to meet you.
of course. Can you tell me specific time and your family situation?
This is my home. I live with my older sister and my stepfather.
Can you tell us about your stepfather? It's complicated. I need to check your sister's room.
I think your stepfather is suspicious. Can we go in and see it? He hasn't returned home yet. Hurry up!
Watson! You see this iron box, there are air holes in the wall, bells, very suspicious!
I was a bit scared, but why did Julia say ‘‘speckled band’’ before he died?
This is my sister's room. My stepfather's family moved in.
Helen resorted to Sherlock's help. Sherlock and Watson met with Helen.
This is my stepfather's room. He has been living here. He has a group of very bad friends from Indian.And he likes to keep animals,cheetah and baboon at home.
Don't worry, Helen. I know how Julia died. You must listen to me. Your stepfather will come home this evening and you will wait in your own room. I and Watson wait for the hotel across the street. I will give you a light signal.
Helen's stepfather went out and Sherlock and Watson came to Helen's house to check each room.
I am very worried about my life now, Mr. Sherlock. What should I do now?
Sherlock discovered suspicious objects, air holes, iron boxes, bells in Julia's room.
Look! How dangerous! This is a snake!
Sherlock found a lot of evidence and eventually found out that Julia's room and Dr roylott's room had air holes that were connected to each other.
There is a plate of milk on the ground, and an iron box. What's inside? This room is connected to Julia's room because there are air holes in the wall.
Sherlock told Helen's next move to ensure her safety.
Finally, the truth finally uncovered, that is, Helen's stepfather, is the murderer. But he was killed by his own snake.
The ‘‘spot tape” that Julia had said before his death was the snake!