L'énigme du Sphinx

From Author Wars - https://authorwars.com/books/lenigme-du-sphinx-2088609.html

Overview:

Title: L'énigme du Sphinx
Author: Jean Ray
Year: 1938
Type: Short Fiction
Series: Harry Dickson

Editions/Publications:

Unknown. Harry Dickson X (Unknown, Jean Ray, Marabout, 369+[15] pages, Paperback, Collection)