Trio of Sorcery (Diana Tregarde, #0.5) - Mercedes Lackey I want to be a Techno-Shaman. I read this book for the Diana Tregarde story "Arcanum 101" and it was good, but I liked the story "Ghost in the Machine" best. I hope there will be more stories featuring Ellen McBride. I might have liked "Drums" better if I had read "Sacred Ground" first, but as it was I didn't care enough about the characters and the story seemed too predictable.