The Warlock Insane

From Author Wars - https://authorwars.com/publications/the-warlock-insane-485555.html

Overview:

Title: The Warlock Insane
Author: Christopher Stasheff
Year: 1989
ISBN-10: 0441873642
Publisher: Ace Books
Price: C$5.25
Pages: 247
Binding: Paperback
Type: Novel
Title Reference: The Warlock Insane
Notes: "This book is an Ace original and has never been previously published" "Ace edition July 1989" "Cover art by Kinuko Craft" "Printed in the United States of America" 1 printing per number line "10 9 8 7 6 5 4 3 2 1" There is another pub with the same information, but a cover price of $3.95. The presumption is that this is a cover for the Canadian market.