Shadow Man

Melissa Scott's Shadow Man is a gripping and thought-provoking look at a strange future. In this future, five human sexual identities are recognized throughout the galaxy, and humanity has adjusted to this new culture. Except on Hara, where everyone must choose to be a man or a woman and that decision is final. "Impressive. . . . A book that compares favorably with the gender-bending SF classics, Triton and The Left Hand of Darkness".--Booklist.