Caroline is beautiful, musically gifted, and good; she is the shining star of a small town on the water. The story is told by her twin sister Louise, who is almost sick with jealousy and longing. Louise is not a flawless person, but I loved her just the same: her work-roughened hands, her terrible puns, her puzzlement at her anger when a friend falls in love with her sister. It's a good book about complicated family relationships, and Paterson never pulls back on showing the truth of it. In the end, both sisters manage to break free and become their own people.