Black Trillium
Ruwenda is a pleasant, peaceful land-but the magic of its guardian, the Archimage Binah, is waning. Binah must pass along her protectorship to the triplet princess of Ruwenda. She bestows upon the infant girls the power of the rare and mystical Black Trillium — badge of the royal house, symbol of an ancient magic. While the sisters blossom into beautiful young women, neighboring Labornok use a dark magician to sunder Binah's protection. As invaders pour into Ruwenda, the Archimage orders the princesses to flee-and changes them to search for three magical talismans which when brought together will be their only chance to regain their kingdom and free its people. Each must accomplish her task separately — and to succeed, each must also confront and conquer the limits of her own soul.
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Marion Zimmer Bradley
Marion Zimmer Bradley was an American fantasy and science fiction author. She was born 1930 and died 1999 after suffering a major heart attack.
Writing for over 4 decades, Marion Zimmer Bradley is best known for her Darkover science fantasy series and her Arthurian masterpiece, The Mists of Avalon. She also edited anthologies for several years and published Marion Zimmer Bradley's FANTASY Magazine.
Trillium
Trillium consists of five books. The current recommended reading order for the series is provided below.

