Question: 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?
Sentence (from "John Crowley"): He studied at Indiana University and has a second career as a documentary film writer.
Relevant evidence: No