Sax Rohmer 
The Golden Scorpion 

"The Golden Scorpion" by Sax Rohmer is a gripping mystery novel that tells the story of a serial killer who calls himself The Scorpion. Four brilliant men have been killed in a gruesome manner, with the only clue left behind is a golden scorpion's tail carved into the flesh of their victims. When the best detectives from France and England come together to solve the case, they realize they are dealing with a highly intelligent and cunning killer. The investigation takes them through the seedy underbelly of London, including its opium dens and Chinatown, as they try to track down The Scorpion before he can strike again. The detectives encounter a range of colorful characters, including the mysterious and seductive Zarmi, who is believed to be The Scorpion's accomplice. As the investigation progresses, the detectives discover something that takes this story to an unexpected turn! What detectives have found? They must race against time to stop him and prevent any more murders.