Tristesse, Book 1

From Author Wars - https://authorwars.com/publications/tristesse-book-1-294427.html

Overview:

Title: Tristesse, Book 1
Author: Sharon Green
Year: 2006
Publisher: CF Publications
Price: $25.00
Binding: Paperback
Type: Novel
Title Reference: Tristesse: Book 1
Notes: This description is based on the listing in CF's 2006 and 2007 mail-order catalogs. The books have apparently gone out of print -- at least they are not listed in the 2009 catalog. The catalog listing does not include a page count.
The book is a continuation of the "Diane Santee" series, written for publication by DAW, but either rejected by or never submitted to DAW (the catalog listing is not quite clear on the point, but does describe them as "never before published").