On the surface, Melanie Kingstad-Keyes's life is the picture of success. She's a tenure track professor at a prestigious university and has a perfect husband. But a recent miscarriage has left her reeling and her marriage tenuous. Selling her family's Lake Indigo summer home, which she hasn't visited in fifteen years, feels like the perfect distraction from her problems. Now, she only needs to persuade her younger sister, Kelsey, to go along with...