Dope by Sax Rohmer revolves around the world of drug trafficking and crime in London during the early 20th century. It follows the story of Paul Harley, a private investigator, who becomes involved in a case that leads him into the dangerous and mysterious world of drug rings and criminal organizations. The book explores themes of addiction, crime, and suspense as Harley attempts to unravel the secrets behind the illicit drug trade.

"Bat Wing" is a mystery-adventure novel written by Sax Rohmer, first published in 1921. Set in London and Egypt, the story revolves around Paul Harley, a private detective, who is drawn into a series of perplexing events involving a valuable blue diamond known as the "Blue Water." The diamond has a curse associated with it, and its possession is believed to bring bad luck and tragedy.

Harley's investigation takes him into a world of international intrigue, ancient curses, and dangerous crimin...