The Sign of Four

From Author Wars - https://authorwars.com/books/the-sign-of-four-2070491.html

Overview:

Title: The Sign of Four
Author: uncredited
Year: 1994
Type: Interior Art

Editions/Publications:

Unknown. The Sign of Four (Unknown, uncredited, Applewood Books, ISBN-10: 1557093016, $24.95, [viii]+283 pages, Hardcover, Novel)