Gaining Ground by Joan Barfoot

Abra has a perfect-seeming life as a wife and mother: until one day, she walks away, leaving only a note asking her family not to look for her. In a woodland cabin, her new life alone begins. There are no mirrors, no clocks, no memories: just the squirrels breathing in the forest, and silence of vegetables growing. Years later, a young woman arrives, and the past-flashes begin. Daughter? A strange word. Is this her? And what will this mean?