The Battle for the Castle

From Author Wars - https://authorwars.com/publications/the-battle-for-the-castle-570061.html

Overview:

Title: The Battle for the Castle
Author: Elizabeth Winthrop
Year: 1994
ISBN-10: 0862784042
Publisher: The O'Brien Press
Price: £3.99
Pages: 211
Binding: Trade Paperback
Type: Novel
Title Reference: The Battle for the Castle
Notes:
Some data from Amazon UK as of 2016-05-10 (no list price) Both sources gives ISBN-10 and ISBN-13, maybe a later printing

Price and confirmation of year from Irish Times 1994-10-29 pA8 "The Bees Knees" review column on all O'Brien Christmas offerings

As of 2016-05-11 OBrien.ie shows this cover image and ISBN-13, size 19.6 mm, price €5.07, "Rights held: Ireland, English only"