The Witching

From Author Wars - https://authorwars.com/publications/the-witching-918565.html

Overview:

Title: The Witching
Author: Colin John
Year: 1982
ISBN-10: 0505518066
Publisher: Tower Books
Price: $3.25
Pages: 331
Binding: Paperback
Type: Novel
Title Reference: The Witching
Notes: Price on the front cover, at the top and bottom of the spine, and in the barcode on the back cover. Cover art is signed CLARK on the lower right corner; signature is more visible on the back cover where it's not obscured by the Tower logo.