¿Eres tú? - Are you the one? - Just before 1973, a young Robert, from Montana, travels to Chile to collect medicinal plants. He meets Rosa, the daughter of a shaman, or machi, who has much knowledge of the powers of medicinal plants. But, Robert must leave for Vietnam and can only return several years later after the military coup to learn that he has a daughter. This novel takes place in the Araucarian region of south-central Chile. Not only is it a story of love, it also presents a history of the region, its native people, their folklore music, and their plants with medicinal powers.