With love and thanks, I acknowledge Jennifer Rudolph Walsh, my muse for this story. I thank my editor, Sarah McGrath, for giving her immense talent wholeheartedly. I thank my two most enthusiastic readers and advisers, Margaret Riley and Britton Schey. I am deeply indebted to Tracy Fisher and Alicia Gordon, both great champions of this book. And with warmest appreciation, I acknowledge the entire outstanding team at Riverhead and Penguin, including Sarah Stein, Stephanie Sorensen, Geoff Kloske, and Susan Petersen Kennedy.