London, 1890. 221B Baker St. A fine art dealer visits Sherlock Holmes and Dr. Watson to beg for their help. He is being menaced by a strange man in a flat cap--a wanted criminal who seems to have followed him all the way from America.
Anthony Horowitz is the #1 New York Times bestselling author of the Alex Rider series and the award-winning writer of PBS's Foyle's War, Collision, and Injustice, as well as many other film and television projects. He lives in London.
