Private investigators 603 Women private investigators 372 Mystery fiction 326 Investigation 287 Murder 287 Large type books 130 Missing persons 109 Barrington, Stone (Fictitious character) 59 History 47 Crimes against 46 Romantic suspense fiction 42 Suspense fiction 37 Historical fiction 36 Humorous stories 32 Electronic books 31 Paranormal fiction 31 Bakeries 29 Man-woman relationships 26 Fantasy fiction 25 Swensen, Hannah (Fictitious character) 25 Dogs 24 Raisin, Agatha (Fictitious character) 23 Kidnapping 20 O'Connor, Cork (Fictitious character) 20 Rich people 20 Secrecy 20 Bell, Isaac (Fictitious character) 19 Ex-police officers 19 Cole, Elvis (Fictitious character) 18 Monk, Adrian (Fictitious character) 17 Social life and customs 17 Assassins 16 Police 16 Eccentrics and eccentricities 14 Fairies 14 Ghost stories 14 Love stories 14 Noir fiction 14 Adventure stories 13 Cold cases (Criminal investigation) 13 Magic 13 Private security services 13 City and town life 12 Vampires 12 Widows 12 Women detectives 12 Extortion 11 Girls 11 Intelligence officers 11 Missing children 11 more ...