The Saga of the Trillium is a 5-book series with 5 primary works first released in 1990 with contributions by Marion Zimmer Bradley, Julian May, and Andre Norton.
1990 • 2 Readers • 541 pages • 4
1990 • 2 Readers • 546 pages • 5
1992 • 7 Readers • 391 pages • 4
1993 • 7 Readers • 340 pages • 4.3
1995 • 10 Readers • 303 pages • 4
1996 • 7 Readers • 3.7