Reading order
| # | Title | Published | Author | Buy on Amazon |
|---|---|---|---|---|
| 1 | Black Trillium | 1990 | Julian May | Buy |
| 2 | Blood Trillium | 1992 | Julian May | Buy |
| 3 | Golden Trillium | 1993 | Julian May | Buy |
| 4 | Lady of the Trillium | 1995 | Julian May | Buy |
| 5 | Sky Trillium | 1996 | Julian May | Buy |
The Trillium series began as a collaboration between three major fantasy authors: Julian May, Marion Zimmer Bradley, and Andre Norton. Black Trillium (1990) established the world and characters, with each author then writing solo sequels that followed different protagonists from the original novel.
Julian May’s contributions to the series continued the storyline she had begun in the collaborative first book. The Trillium project remains a notable example of literary collaboration in the fantasy genre.