"At age fifty-five, Meg's life is too filled with loss for her to remember what magic feels like. All she has left is a yard brimming with plants that are wilting in the scorching Iowa summer--and a bone-deep feeling that she's through with living. Meg has something else too: a bottle of mysterious pills, given to her years ago by an empathetic doctor. He promised that they would offer her dying mother a quick, painless end in exactly twenty days....