The Da Vinci Code
FOR BLYTHE... AGAIN. MORE THAN EVER.
First and foremost, to my friend and editor, Jason Kaufman, for working so hard on this project and
for truly understanding what this book is all about. And to the incomparable Heide Lange—tireless
champion of The Da Vinci Code, agent extraordinaire, and trusted friend.
I cannot fully express my gratitude to the exceptional team at Doubleday, for their generosity, faith,
and superb guidance. Thank you especially to Bill Thomas and Steve Rubin, who believed in this
book from the start. My thanks also to the initial core of early in-house supporters, headed by
Michael Palgon, Suzanne Herz, Janelle Moburg, Jackie Everly, and Adrienne Sparks, as well as to
the talented people of Doubleday's sales force.
For their generous assistance in the research of the book, I would like to acknowledge the Louvre
Museum, the French Ministry of Culture, Project Gutenberg, Bibliothèque Nationale, the Gnostic
Society Library, the Department of Paintings Study and Documentation Service at the Louvre,
Catholic World News, Royal Observatory Greenwich, London Record Society, the Muniment
Collection at Westminster Abbey, John Pike and the Federation of American Scientists, and the
five members of Opus Dei (three active, two former) who recounted their stories, both positive and
negative, regarding their experiences inside Opus Dei.
My gratitude also to Water Street Bookstore for tracking down so many of my research books, my
father Richard Brown—mathematics teacher and author—for his assistance with the Divine
Proportion and the Fibonacci Sequence, Stan Planton, Sylvie Baudeloque, Peter McGuigan,
Francis McInerney, Margie Wachtel, André Vernet, Ken Kelleher at Anchorball Web Media, Cara
Sottak, Karyn Popham, Esther Sung, Miriam Abramowitz, William Tunstall-Pedoe, and Griffin
And finally, in a novel drawing so heavily on the sacred feminine, I would be remiss if I did not
mention the two extraordinary women who have touched