DOUGLAS PRESTON has published forty books of both nonfiction and fiction, of which thirty one 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 Magazine. 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.