The Heritage Universe

From Author Wars - https://authorwars.com/publications/the-heritage-universe-273799.html

Overview:

Title: The Heritage Universe
Author: Charles Sheffield
Year: 1992
Publisher: GuildAmerica Books / SFBC
Price: $14.98
Pages: 724
Binding: Hardcover
Type: Omnibus
Title Reference: Summertide
Notes:
• No date or price; taken from the Locus Index. • Collects three novels: "Summertide" (0-345-36937-8); "Divergence" (0-345-36039-7); and "Transcendence" (0-345-36981-5). The ISBNs are present on the copyright page.