Mixing Two Stories
No summary of Walk Two Moons would be complete without a discussion of the way that Sal keeps going back and forth between two stories: Phoebe's story, and memories of her own mother, who felt inferior to her husband in many ways. Both Sal's mother and Phoebe's mother felt that their families were not paying any attention to them, and that their lives were basically going nowhere.
Around this time, Sal and her grandparents arrive in South Dakota, and they all stop and take a dip in the Missouri River. However, Gram gets a snakebite, and even though they take her to the hospital, and she gets better, her physical condition goes down from here.
Back to Phoebe, though -- one day, her mother goes away, without a note or conversation. Phoebe suspects kidnappers at first and starts looking for clues. Then, Sal then talks about her mother's vanishing. After Sal had broken her leg in a fall from a tree, her mother (pregnant at the time) had picked her up, carrying her all the way back to the house and driving her to the hospital. This sent her into premature labor. Her baby died, and she almost died herself. In grief, she decided to travel alone to visit a cousin in Idaho.