Shift

From Author Wars - https://authorwars.com/publications/shift-146551.html

Overview:

Title: Shift
Author: Chris Dolley
Year: 2007
ISBN-10: 9781416521402
Publisher: Baen Books
Price: $24.00
Pages: 322
Binding: Hardcover
Type: Novel
Title Reference: Shift
Notes: First printing as per number line.
Cover credited to Allan Pollack (copyright page) and to Kurt Miller (back flap of dj). I'd cast my vote for Pollack due to similarity with his cover for _Resonance_ Here