Flight Behavior, by Barbara Kingsolver

Dellarobia, at the beginning of this novel, heads up into the hills near her home to meet a lover. She is, instead, waylaid by the sight of thousands, if not millions, of monarch butterflies clinging to the trees. She returns to her home and family, and her life is changed.

This book has feminism, environmentalism, religion, the people and culture of Appalachia, the nature of families, and the love of parents for their children.

It may have been a tad too simple, a bit maudlin, but mostly I enjoyed it.