The Portable Door

From Author Wars - https://authorwars.com/publications/the-portable-door-489937.html

Overview:

Title: The Portable Door
Author: Tom Holt
Year: 2008
ISBN-10: 9780748108848
Publisher: Orbit
Price: £6.49
Pages:
Binding: ebook
Type: Novel
Title Reference: The Portable Door
Notes: Edition: New Ed. Amazon Kindle's page count 416. Data from Amazon UK as of 2014-11-15. Price from W. H. Smith as of 2014-04-20.