The Darkest Hour

From Author Wars - https://authorwars.com/publications/the-darkest-hour-625339.html

Overview:

Title: The Darkest Hour
Author: Erin Hunter
Year: Unknown
ISBN-10: 9780060525859
Publisher: Avon Books / HarperCollins
Price: $6.99
Pages: [15]+315+[3]
Binding: Trade Paperback
Type: Novel
Title Reference: The Darkest Hour
Notes:
• "First Avon edition, 2006" • No number line but not the first printing, that was $5.99 • Included in the boxed set Warriors issued in 2007 • "Cover art © 2004 by Wayne McLoughlin" on back cover • Interior art [maps/chapter headings] not credited • $8.75 in Canada