Fiction Suspense fiction Detective and mystery stories 6 Fictitious character 4 Murder 4 Missing persons 3 Adventure stories 2 Historical fiction 2 Investigation 2 Man-woman relationships 2 College teachers 1 Crimes against 1 Death 1 Family secrets 1 Fathers 1 Fiction / Thrillers 1 Fictitous character 1 History 1 Intelligence officers 1 Knights Templar (Masonic order) 1 Mafia 1 Philadelphia Experiment, 1943 1 Private investigators 1 Prohibition 1 Secret societies 1 Serial murderers 1 Sisters 1 Spy stories 1 Students 1 Women detectives 1