Elisabeth Barclay, a young suffragist in 1866, is appalled to learn she is half Washo and unaware she is anxiously watched by that tribe and by Masete, the brilliant warrior to whom she was promised. Her struggles with her sense of justice and scorn for her mother's people, increasingly powerful visions by their lake, Tahoe, and growing attraction to Masete come to a head in a battle during which Elisabeth discovers she must claim her role in an ancient prophecy that transcends time.