Many thanks to my agent, Stefanie von Borstel; my editor, Connie Hsu; and the whole team at Little, Brown. I am so lucky to have your enthusiasm and expertise on my side. Thanks also to Christine Granados and Carmen Edington, who helped me get those first chapters in tip-top shape, and to my Daedalus friends, whose writing advice continues to guide me even when I am alone with the keyboard. Finally, I couldn’t do this without the encouragement of my colleagues and students at UHV and the support of my family and friends, most especially Gene.