'SHERLOCK HOMES DISAPPEARS, POLICE SUSPECT FAMED DETECTIVE IN KIDANPPING AND MURDER' reads a New York headline. So begins the fifth mystery in Larry Millett's series. A letter, written in a secret cipher he recognizes all too well, reveals that an old foe of Holmes—a murderer he once captured after an incredible duel of wits—is back, has kidnapped his previous victim's widow, and is now impersonating Holmes himself. Holmes must once again match wits with a particularly cunning adversary, one whose hatred of Holmes has become the killer's greatest obsession.