Trey of Swords

From Author Wars - https://authorwars.com/publications/trey-of-swords-277216.html

Overview:

Title: Trey of Swords
Author: Andre Norton
Year: 1978
ISBN-10: 0441823564
Publisher: Ace Books
Price: $1.95
Pages: 180
Binding: Paperback
Type: Novel
Title Reference: Trey of Swords
Notes:
"Second Ace printing: November 1978"; no number line Cover art is credited to Mikolaycak on copyright page, back cover portion of the wraparound artwork is also signed The Worldcat record has both ISBNs from first and second printings