The Mark of the Demons

From Author Wars - https://authorwars.com/publications/the-mark-of-the-demons-285993.html

Overview:

Title: The Mark of the Demons
Author: John Jakes
Year: 1976
ISBN-10: 0426167236
Publisher: Tandem
Price: £0.45
Pages: 159
Binding: Paperback
Type: Novel
Title Reference: The Mark of the Demons
Notes:
"Reprinted by Tandem ... 1976"; no number line The artist is not credited, no visible signature on the artwork. Artist confirmed by his wife 2023-03-13. UK 45p, Malta 50c