Heart of the Giant

From Author Wars - https://authorwars.com/books/heart-of-the-giant-919448.html

Overview:

Title: Heart of the Giant
Author: uncredited
Year: 1971
Type: Interior Art

Editions/Publications:

Unknown. Worlds of Tomorrow, Spring 1971 (Unknown, uncredited, UPD Publishing Corporation, $0.75, 196 pages, digest, MAGAZINE)