The Long Mars

From Author Wars - https://authorwars.com/publications/the-long-mars-449927.html

Overview:

Title: The Long Mars
Author: Terry Pratchett, Stephen Baxter
Year: 2014
ISBN-10: 9780062297297
Publisher: Harper
Price: $25.99
Pages: x+351
Binding: Hardcover
Type: Novel
Title Reference: The Long Mars
Notes: First U.S. printing by full number line.
Cover photo credited on the rear jacket flap.
Date from Amazon.com.
Roman numeral page pages not numbered, but page for illustration given where artwork is credited on the copyright page.