It is 1970. "Bean" Holladay is twelve and her sister Liz is fifteen when their artistic mother Charlotte, a woman "who flees every place she's ever lived at the first sign of trouble," takes off to "find herself." She leaves her girls enough money for food to last a month or two. But when Bean gets home from school one day and sees a police car outside the house, she and Liz board a bus from California to Virginia, where their widowed Uncle Tinsley lives in the decaying antebellum mansion that's been in the family for generations. When school starts in the fall, Bean easily adjusts and makes friends, and Liz becomes increasingly withdrawn. Then something happens to Liz and Bean is left to challenge the injustice of the adult world.