Holmes is talking to Helen about the death of her sister.
This is Julia's room where Julia died mysteriously.
this is ther house the stepfather was mean because he was abose
1 the bell was for the snake2 milk was for snake3 the saucer is a bowl4 a whistle the low while was a sine of death
Snake inside of the bedroom were there is a safe .The snake is in the safe because Dr. Roylott is hiding him from Helen.
Dr. Roylott gets killed by his own snake because Holmes scares the snake back into his room and solves the mystery. Dr. Roylott killed Julia and was trying to kill Helen.