The Spheres of Heaven

From Author Wars - https://authorwars.com/publications/the-spheres-of-heaven-31680.html

Overview:

Title: The Spheres of Heaven
Author: Charles Sheffield
Year: 2001
ISBN-10: 0671319698
Publisher: Baen Books
Price: $24.00
Pages: 440
Binding: Hardcover
Type: Novel
Title Reference: The Spheres of Heaven
Notes:
• "First printing, February 2001" • First printing by number line 10—1 • "Cover art by Bob Eggleton" on copyright page, "Illustration by Bob Eggleton" on rear flap; the artwork is also signed • $35.50 in Canada