Taylor Greer sets out to leave home, Kentucky, and travel west, and finds herself in Oklahoma near Cherokee territory. As Taylor stops in the town, a woman suddenly approaches, deposits a small child, and leaves without explanation. Not knowing what else to do, Taylor decides to care for the child. The two travel to Tucson, Arizona, where she meets Lou Ann, a woman with a young son. Lou Ann had been married; her husband abandoned her and their child.
The novel traces the experiences of Taylor and the child, who Taylor names Turtle.