The Black Door

From Author Wars - https://authorwars.com/books/the-black-door-2191407.html

Overview:

Title: The Black Door
Author: Collin Wilcox
Year: 1967
Type: Novels

Editions/Publications:

Unknown. The Black Door (Unknown, Collin Wilcox, Dodd, Mead & Co., $3.95, 181 pages, Hardcover, Novel)