The Odd Warlock Out

From Author Wars - https://authorwars.com/publications/the-odd-warlock-out-260570.html

Overview:

Title: The Odd Warlock Out
Author: Christopher Stasheff
Year: Unpublished
ISBN-10: 0330328255
Publisher: Tor / Pan Macmillan UK
Price: £6.99
Binding: Paperback
Type: Omnibus
Title Reference: The Warlock's Companion
Notes: Pre-release data generated by Dissembler from Amazon.com website as 2008-4-19, but the edition remains apparently unpublished as of 2009-06-23.