The story is fun, beleivable, and full of mystery surrounding the ancient citizens of the planet, the vanished ones. It is fairly easy to read because the authors did not add too much description, or confusing topics, which often take away the pleasure of reading.
The charcters came to life for me because their personalities were so human. Also, although I am not a feminist, I enjoyed the fact that the main characters Kadiyah, Haramis, and Anigel are women, which is a good change from many other fantasy stories that have either men as the lead characters or super-strong and unrealistic women running around and beating everyone up, (*cough*Xena-wannabees*cough), excuse me.
Black Trillium has all the elements that make an excellent story. The only problem that I had with it is that the ending seemed to be a little slapped together because it was so short.
This is when all three sisters confront The bad guy, Orogastus, together for the first time. About two short chapters later, the story ends. This dosen't create any loose ends, but it does take some of the momentum that the story had built up.