I’d like to thank my editor, Elizabeth Beier, for excellent advice just when I needed it, and my agent, Maria Massie, for her insight and good humor. Dori Weintraub and Sylvie Rabineau also provided valuable assistance. My wife, Mary Granfield, was, as always, the best first reader I could ask for. Mainly, though, I’d like to thank Nina and Luke for letting me tag along at the playground.