Secret Service Operator 13

A collection of 12 stories previously published sequentially in the pages of monthly magazine Cosmopolitan, August 1932 to July 1933. The stories were:
1. Pretty Nigger
2. Skin Deep
3. Ring-Around-A-Rosie
4. Shadow Dance
5. Lady Green-sleeves
6. Fathoms Five
7. Counter-Spy
8. Ad Astra
9. Revolt!
10. John Gailliard Rides
11. Blonde and Black
12. End of the World