The Shape Changer

From Author Wars - https://authorwars.com/publications/the-shape-changer-189945.html

Overview:

Title: The Shape Changer
Author: Keith Laumer
Year: Unknown
ISBN-10: 0441760880
Publisher: Ace Books
Price: $2.50
Pages: 230
Binding: Paperback
Type: Novel
Title Reference: The Shape Changer
Notes:
"First Ace printing: May 1981" Second printing by number line 2 4 6 8 0 9 7 5 3 Likely 1983, next printing was in 1984 with $2.75 price The artist is not credited, Rowena is on the artwork OCLC listed by © year