DOUGLAS PRESTON has published over forty books of both nonfiction and fiction, of which more than thirty have been New York Times bestsellers, a half-dozen reaching the #1 position. He is the co-author, with Lincoln Child, of the Pendergast series of thrillers. He also writes nonfiction pieces for the New Yorker. He worked as an editor at the American Museum of Natural History in New York and taught nonfiction writing at Princeton University. He is president emeritus of the Authors Guild and serves on the Advisory Board of the School for Advanced Research in Santa Fe. ALETHEIA PRESTON is a reformed lawyer originally from Santa Fe, New Mexico. After working as a prosecutor in San Francisco, she moved into private practice as a trial attorney before embarking on a journey as a writer. She is a lover of thriller and science fiction novels and has been an avid reader and writer in both genres since she was a little girl. An admitted adrenaline junkie, Aletheia spends much of her free time outdoors finding ways to risk her life, from skiing and mountaineering to paragliding and winter camping. She is also a PADI certified deepwater and wreck scuba diver. Fluent in Italian and Spanish, she spent much of her childhood in Florence, Italy. She and her cat Mochi live in Bozeman, Montana.