What American fantasy writer's wife uthored several best-selling epic fantasy novel series, including "The Belgariad" , "The Malloreon" , "The Elenium" , "The Tamuli" , and "The Dreamers", David Eddings, or  John Crowley?
David Eddings: David Eddings (July 7, 1931 – June 2, 2009) was an American fantasy writer. David Eddings:  With his wife Leigh, he authored several best-selling epic fantasy novel series, including "The Belgariad" (1982–84), "The Malloreon" (1987–91), "The Elenium" (1989–91), "The Tamuli" (1992–94), and "The Dreamers" (2003–06). John Crowley: John Crowley (born December 1, 1942) is an American author of fantasy, science fiction and mainstream fiction.
David Eddings