I would like to thank, as always, my wonderful editor, Anne Sowards; thanks also to Tina, Erica, and Cam— Penguin's Charlie's Angels of kicking publishing ass; Dr. Linda James for her assistance in the medical areas; Jeff Thurman of the Federal Bureau of Investigation for his weapons advice; the unequaled art and design team of Chris McGrath and Ray Lundgren; my agent, Jennifer Jackson; Shannon and River—forever the twins; Jordana, friend and inspiration for the Nature Channel reference; Shawn and Beth, for keeping my Web site up and running; and fellow writer Mara.
I have taken great liberties with the tunnel system at Columbia University, as well as with the interior of Buell Hall. It was all in the interest of the plot, I promise you, but as a result, reality has suffered. My apologies to reality. Then again, what has reality ever done for me?