Threshold

From Author Wars - https://authorwars.com/publications/threshold-311975.html

Overview:

Title: Threshold
Author: Ryk E. Spoor, Eric Flint
Year: 2010
ISBN-10: 9781439133606
Publisher: Baen Books
Price: $25.00
Pages: [8]+309+[3]
Binding: Hardcover
Type: Novel
Title Reference: Threshold
Notes: "First Printing, June 2010" First printing by number line. Canadian price C$32.99 art credits on copyrt pg and (for cover art) back DJ flap. "A Baen Books original" "Cover design by Carol Russo Design" (Back DJ flap) "Coupon" (URL) for a free ebook edition of Boundary, the book to which this is a sequel, on the front DJ flap. The author's names are in a reflective silver foil. (DES)