Prince of Darkness

From Author Wars - https://authorwars.com/publications/prince-of-darkness-359470.html

Overview:

Title: Prince of Darkness
Author: uncredited
Year: 1946
Publisher: Westhouse
Price: 8/6
Pages: 250
Binding: Hardcover
Type: Anthology
Title Reference: The Earlier Service
Notes: Introduction signed: Gerald Verner. "First published in June 1946." Published anonymously per Reginald. Publisher is named both Westhouse and John Westhouse at various places in the book; title page has Westhouse.