An Exchange of Gifts

From Author Wars - https://authorwars.com/publications/an-exchange-of-gifts-239645.html

Overview:

Title: An Exchange of Gifts
Author: Anne McCaffrey
Year: 2008
ISBN-10: 9780843959178
Publisher: Cosmos Books
Price: $6.99
Pages:
Binding: Paperback
Type: Chapter Book
Title Reference: An Exchange of Gifts
Notes: A search for this pub reveals no copies available on the internet, not even at the publisher's website. The page count of 336 pages on Amazon.com is obviously incorrect.
OCLC lists "Cosmos" as the publisher for this publication, but shows no page count or size, and says "No copies available in any library." [as 2011-05-21 there are libraries with copies, so the remaining points made about this book's unavailability may be incorrect].
ISBNDB.COM has no record of this ISBN.
fantasticfiction.co.uk lists Dorchester as the publisher, and lists this ISBN, but its links do not lead to any copies for sale.
Bookfinder has the ISBN on file, but no copies listed.
Amazon UK lists this as published in 2008 but not yet available. Amazon CA lists this as published in 1969, by "Dorchester / Cosmos", and the date is an obvious error, as is the page count.
Looks like a book planned but never published.