The Clan of the Cave Bear (Earth's Children, #1)

by Jean M. Auel

At the onset of menarche, girls were required to spend the duration of their first period away from the clan. If it occurred during the winter, the young woman stayed alone in an area set aside at the rear of the cave but was still required to spend one menstrual period alone in spring. Living alone was both frightening and dangerous for a young, unarmed woman used to the protection and company of the whole clan. It was a trial that marked the passage of girls into womanhood, similar to the male’s trial of making his first kill, but no ceremony marked her return to the fold. And, though the young woman had fire for protection from carnivorous beasts, it was not totally unknown for a woman never to return—her remains usually found later by some hunting or foraging party. The girl’s mother was allowed to visit her once a day to bring her food and reassurance. But if the girl disappeared or was killed, her mother was forbidden to mention it until a minimum number of days had elapsed.