The valley of fear is written by Sherlock Holmes. The whole play script is divided into two acts. the whole act 1 in on the tragedy of birthstone manor while act 2 is on the scowrers.The act 1 was almost on the murder that was there investigated by Holmes, Watson,Mac Donald,Sergent Wilson and Doctor Wood. The act 2 is almost on the scowrers that how Mac Murdo trapped the body master MC Ginty and other scowrers. As he was so clever he planned to trap Pinkerton the birdy Edward and Wilcox in front of scowrers but there was nothing like that he want to do with them. at the end they got to know that Baldwin was died and mac murdo was Douglas.