The Keep

From Author Wars - https://authorwars.com/publications/the-keep-42376.html

Overview:

Title: The Keep
Author: F. Paul Wilson
Year: 1992
ISBN-10: 0450054551
Publisher: New English Library
Price: £4.99
Pages: 379
Binding: Paperback
Type: Novel
Title Reference: The Keep
Notes:
First NEL Paperback Edition March 1983.
Sixth impression 1992. Month from Locus1.
First published in the USA in 1981 by William Morrow and Company Inc.
First published in Great Britain in 1982 by New English Library.
The Acknowledgments signed "F. Paul Wilson / April, 1979 - January, 1981".
On p. [6] there is a crude map of The Keep, untitled and uncredited.
$12.95 in Australia.
No credits for the cover.