Menace of the Mutant Master

From Author Wars - https://authorwars.com/books/menace-of-the-mutant-master-1107125.html

Overview:

Title: Menace of the Mutant Master
Author: Kurt Mahr
Year: 1976
Type: Chapter Books

Editions/Publications:

Unknown. Menace of the Mutant Master (Unknown, Kurt Mahr, Orbit, ISBN-10: 0860079171, 124 pages, Paperback, Chapter Book)