Here is one of his non-Lupin novels - Les Trois Yeux (The Three Eyes), published in October 1944. The book is digest sized, 192 pages and printed on high acid paper. Originally published in 1919 the story involves contact with three-eyed Venusians.
This edition is an exact reprint of a French digest published by Editions Pierre Lafitte in 1935, number 40 in a similarly named series. The cover is slightly modified with the price removed. There is no artist named on the Montreal edition. It looks like the same art but looking closely it appears to be a redrawn version of the French edition - artist Reschovsky (?).
Les Editions Varietes
Editions Pierre Lafitte