Two parallel stories present a young prehistoric female who is instrumental in advancing her people and a modern-day girl who joins her father, a paleontologist, in discovering important fossil remains in Africa. Reprint. AB. NYT. SLJ. H.Two parallel stories present a young prehistoric female who is instrumental in advancing her people and a modern-day girl who joins her father, a paleontologist, in discovering important fossil remains in Africa. Reprint. AB. NYT. SLJ. H.