The title of this book refers to the conflicting worlds of the Indian and the Caucasian which Natachu must choose between. Musically talented but untrained, Natachu becomes a mother's helper in the Albuquerque, New Mexico home of the Boyntons. In return for her help with the two younger boys, the Indian girl is given an opportunity for a better high school education and the chance for a scholarship to college. She quickly wins the affection of the two boys and learns to live with the resentment of the teen-age daughter, Laurie, who would have preferred to have a white-aproned maid as a foil for her own social ambitions and popularity. Natachu's own prejudice against a Navajo girl points out the too often ignored fact that such a state of mind is not a one-way street. Romantic interest in a Caucasian schoolmate is handled with maturity and a comprehension of the difficulties involved, as well as a realization that the growth to be expected during the college years ahead may be expected to resolve the situation. Her lovely voice is likely to continue to serve Natachu as a bridge between her two worlds. An earlier book, Debutante Hill, by Lois Duncan won the Dodd, Mead Seventeenth Summer Literary Competition.