"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 criminals. He encounters a cast of intriguing characters, including a wealthy and enigmatic Egyptian, an enfeebled English aristocrat, and a mesmerizing dancer. As Harley delves deeper into the case, he finds himself entangled in a web of deception, secrets, and hidden motives.The novel explores themes of superstition, cultural clashes, and the lure of precious gems. It combines elements of adventure, mystery, and the supernatural, creating an atmosphere of suspense and tension. As Harley races against time to solve the mystery of the "Bat Wing" diamond and its curse, he must navigate through a complex plot filled with unexpected twists and turns."Bat Wing" showcases Sax Rohmer's talent for crafting engaging and exotic mysteries, immersing readers in a world of danger and intrigue as the detective unravels the truth behind the cursed diamond and the enigmatic individuals connected to it.