Subject/Tag - Extortion investigation
B
Behind the mask, or, Nick Carter and the queen of the Mardi Gras
C
Cool Colorado in New York; or, The Cowboy's Fight for a Million. A Romance of City and Wild West
D
Dodger Dick's Best Dodge; or, The Gold Gang of Gotham
G
Gipsy Madge, the blackmailer, or, Nick Carter's first-class bluff
I
In the nick of time, or, Carter finishes the Feltman syndicate
N
New York Nell, the Boy-Girl Detective; or, Old Blakesly's Money
R
A royal flush, or, Nick Carter's pursuit of a living mystery
T
A trio of blackmailers, or, Nick Carter on the right side