French Powder Mystery
Author: first_name: Ellery
last_name: Queen
Language: English
Year: 1930

This is the second Ellery Queen novel, wherein the writer turned sleuth works with... or sometimes in opposition to... his father, an inspector in the New York Police Department.
The scene is French's Department Store, renowned for its exclusive merchandise until a body turns up on display in its window. - Summary by LynneT