Unholy Night

From Author Wars - https://authorwars.com/publications/unholy-night-378320.html

Overview:

Title: Unholy Night
Author: Seth Grahame-Smith
Year: 2012
ISBN-10: 9781455516179
Publisher: Grand Central Publishing
Price: $
Pages:
Binding: Paperback
Type: Novel
Title Reference: Unholy Night
Notes: Data from Amazon UK as of 2012-02-23.
This is probably an international release. It is not available in the US on Amazon.