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".
After 12,000 Years After 12,000 Years is a science fiction novel by Stanton A. Coblentz. It was first published in book form in 1950 by Fantasy Publishing Company, Inc. (FPCI) in an edition of 1,000 copies, of which 750 were hardback. Lloyd Arthur Eshbach regarded this as one of the stronger titles published by FPCI. Considered one of the author's most bizarre and most interesting futuristic fantasies, the novel originally appeared in the Spring 1929 issue of the magazine "Amazing Stories Quarterly". The novel was abridged for the FPCI publication. E. F. Bleiler considered the unabridged version to be superior.