Nancy Drew
The Message in the Hollow Oak
1935
The Hidden Staircase
1930
The Secret of the Old Clock
The Secret of Red Gate Farm
1931
Sammy Keyes and the Night of Skulls
Sammy Keyes and the Hotel Thief
Sammy Keyes and the Sisters of Mercy
Sammy Keyes and the Skeleton Man
Sammy Keyes and the Art of Deception
