A review by brucefarrar
Spherical Harmonic by Catherine Asaro

4.0

Dyhianna Selei awakens in an unknown wood. She’s disoriented. She doesn’t know who she is. She’s been drifting in and out of consciousness, and in and out of reality. Looking down at her youthful looking body the first thing she remembers is her age, 158. As she slowly pieces together her memories, she will remember a desperate escape from an interstellar conflict of massive destruction, and the key role she will have to play in its aftermath.

This edition includes an author’s note, “Science in Science Fiction,” which describes the mathematics and physics in the story, and then goes on to talk about world-building, and linguistics. Notes on characters and family history are followed by genealogical tables and a timeline for this book and the preceding six books in the series.