"A New Kind of Detective Story"

NO. 13, RUE DU BON DIABLE.
By Arthur Sherburne Hardy (1847-1930).
Houghton Mifflin Co.
1917. 212 pages. $1.35
Online HERE, HERE, HERE, and HERE.

This would seem to be Hardy's only attempt at detective fiction; he might not have had the time to write more, since Wikipedia credits him with producing texts on analytic geometry and calculus, as well as being the American ambassador to several other countries, including Persia:

[Full review] A new kind of detective story which gives in the beginning the details of the murder of the charming French girl's uncle as he is about to present her with birthday pearls, the interest centring about the efforts of the detectives to arrive at a solution. — "The Bookman Recommends," THE BOOKMAN (December 1917; go to page 502, left middle)

Category: Detective fiction