There are many ways in which Robert Louis Stevenson creates mystery and suspense in Jekyll and Hyde. The main mystery that Stenvenson creates is what links Hyde to Jekyll and who is Hyde, Utterson in the book tries to find out who is Hyde and why Jekyll has decide to give all his thing to Hyde,Hyde is the one in which Stevenson creates more Mystery because is a person that only Jekyll knows that excist. Hyde is a person that looks hardly human and with a strange behaviour and only appears at night, also some important events occur at night and all are linked to Hyde. In chapter four “The Carew murder case” Hyde is protagonist of this event where he kills Carew without a reason, that night Hyde and Carew meet each other Hyde broke out in a great flame of anger he broke out all bounds and clubbed Carew to the earth.