Subject
Knight, Philip (Fictitious character)
8
Knight, Roger (Fictitious character)
8
Private investigators
8
College teachers
7
American fiction
3
American authors
2
English fiction
2
Influence
2
Brothers
1
College graduates
1
College sports
1
Crimes against
1
Gold mines and mining
1
History
1
Investigation
1
Mail bombings
1
Murder
1
Philanthropists
1