The book "The Cunning Doctor Fu Manchu" by Sax Romer is an exciting detective novel full of mystery, intrigue and nervous tension. The story tells about the dangerous and charismatic enemy of Sherlock Holmes, the insidious Chinese man Fu Manchu, who is deceitful and brilliant in his plans. He is skilled in deception, assassination, and insidious subversion. The protagonists of the novel are Dr. Petersman, Shanghai Lil and other characters who enter into a dangerous game with the witchcraft of Fu Manchu. This book is not only interesting because of the complexity of the plot and unexpected turns of events, but also gives an opportunity to delve into the world of an English detective and feel the atmosphere of mystery and danger.