Connie Blair Mystery, de Betsy Allen / Betty Cavanna / Elizabeth Headley, reúne 12 libros de misterio para seguir las pistas junto a Connie Blair. Entre los títulos están The Clue in Blue, Puzzle in Purple y The Secret of Black Cat Gulch.
The Clue in Blue
1948
Puzzle in Purple
1948
The Secret of Black Cat Gulch
1948
The Riddle in Red
1948
The Green Island Mystery
1949
The Ghost Wore White
1950
The Yellow Warning
1951
The Gray Menace
1953
The Brown Satchel Mystery
1954
Peril in Pink
1955
The Silver Secret
1956
The Mystery of the Ruby Queens
1958