La "chose" grise

From Author Wars - https://authorwars.com/books/la-chose-grise-2060449.html

Overview:

Title: La "chose" grise
Author: Jean Ray
Year: 1974
Type: Short Fiction

Variant Titles:

1978. A "coisa" cinzenta

Editions/Publications:

Unknown. Bestiaire fantastique (Unknown, Jean Ray, Marabout, 184+[8] pages, Paperback, Collection)