Have Dean Koontz and Bernhard Schlink both written at least one novel?
Dean Koontz Dean Ray Koontz (born July 9, 1945) is an American author. His novels are broadly described as suspense thrillers, but also frequently incorporate elements of horror, fantasy, science fiction, mystery, and satire. Many of his books have appeared on "The New York Times" Bestseller List, with 14 hardcovers and 14 paperbacks reaching the number-one position. Koontz wrote under a number of pen names earlier in his career, including "David Axton", "Leigh Nichols", and "Brian Coffey".
Michael Lowenthal Michael Lowenthal is an American fiction writer, author of four novels, most recently "The Paternity Test", (University of Wisconsin Press, 2012). Currently an instructor of creative writing at Lesley University, he has been the recipient of fellowships from the Bread Loaf and Wesleyan writers' conferences, the Massachusetts Cultural Council, the New Hampshire State Council on the Arts, and the Hawthornden International Retreat for Writers. His short stories have appeared in literary journals and magazines including "The Kenyon Review, Tin House," and "Esquire."