The Book of Three

From Author Wars - https://authorwars.com/publications/the-book-of-three-157191.html

Overview:

Title: The Book of Three
Author: Lloyd Alexander
Year: 1999
ISBN-10: 0805061320
Publisher: Henry Holt
Price: $17.95
Pages: 188
Binding: Hardcover
Type: Novel
Title Reference: The Book of Three
Notes: This "revised edition" indicates first printing; the text retains the 1964 copyright, but there is a new glossary - Locus.