Book excerpt: This breakout New York Times bestseller from the celebrated author of Commencement and The Engagements, introduces four unforgettable women and the abiding, often irrational love that keeps them coming back, every summer, to Maine and to each other. For the Kellehers, Maine is a place where children run in packs, showers are taken outdoors, and old Irish songs are sung around a piano. As three generations of Kelleher women arrive at the family's beach house, each brings her own hopes and fears. Maggie is thirty-two and pregnant, waiting for the perfect moment to tell her imperfect boyfriend the news; Ann Marie, a Kelleher by marriage, is channeling her domestic frustration into a dollhouse obsession and an ill-advised crush; Kathleen, the black sheep, never wanted to set foot in the cottage again; and Alice, the matriarch at the center of it all, would trade every floorboard for a chance to undo the events of one night, long ago.