The Demu Trilogy

From Author Wars - https://authorwars.com/publications/the-demu-trilogy-240097.html

Overview:

Title: The Demu Trilogy
Author: F. M. Busby
Year: 1981
ISBN-10: 0671432885
Publisher: Timescape / Pocket Books
Price: $3.50
Pages: v+522
Binding: Paperback
Type: Omnibus
Title Reference: Cage a Man
Notes:
• "First Pocket Books printing March, 1980" • Second printing by number line 10—2 • Year and month from amazon.com, so suspect [no ads to help date] • The artist is not credited, the artwork is clearly signed • OCLC has no record for the ISBN or printing [2018-01-01]