The Clan of the Cave Bear
By Jean M. Auel
"A natural disaster has left young Ayla alone, wandering, fending for herself in an unfamiliar land. One day, she is discovered by the Clan of the Cave bear, men and women far different from her own people. Tall, blond, blue-eyed Ayla is a mysterious stranger to the Clan and at first they mistrust her and cast her out. But as she grows to know them and to learn the ways of the Clan, she is welcomed."