Question: Which of the following is a writer whose work includes "Plum Island": Charles de Lint or Nelson DeMille?

Context articles: The Lion's Game
Newford
The Onion Girl
The Riddle of the Wren
Nelson DeMille
Mythic fiction
Jack, the Giant Killer (novel)
Plum Island (novel)
Galad Elflandsson
Charles de Lint

The Lion's Game is a 2000 novel by American author Nelson DeMille.
 It is the second of DeMille's novels to feature the detective John Corey, now working as a contractor for the fictional FBI Anti-Terrorist Task Force in New York City.
 The 2000 novel The Lion’s Game is the sequel to Plum Island and is followed by the 2004 book Night Fall.
 The book also briefly mentions events from other DeMille novels like "The Charm School" and "The Gold Coast", that aren't strictly part of the Corey-universe.
Newford is a fictional North American city, the setting in many of Charles de Lint's works of urban fantasy.
 De Lint generally avoids writing about cities that he has not been to; however, his hometown of Ottawa did not afford him the necessary freedoms for certain stories, and he began to set them in an "unnamed" big city.
 After several such stories, he named the city and expanded his development of it.
The Onion Girl is a 2001 contemporary fantasy novel by Charles De Lint which takes place in the Newford universe.
 It is the first Newford novel centering on the recurring character of Jilly Coppercorn, now a middle-aged woman.
 The book was a finalist for the World Fantasy Award.
 De Lint published a sequel in 2006, "Widdershins", and a 2007 prequel "Promises to Keep", the latter of which featured Jilly as a young woman.
The Riddle of the Wren is a Celtic fantasy novel written by Canadian author Charles de Lint.
 Published in 1984 by Ace Books, it was de Lint's first novel.
 It was republished in 2002 by Firebird Fantasy, an imprint of Penguin Group.
 "The Riddle of the Wren" is set in an alternate universe, and is heavily influenced by the works of J. R. R. Tolkien, particularly "The Hobbit".
 The novel's main character Minda Sealy journeys into other worlds to confront Ildran the Dream-master and save the Lord of the Moors.
Nelson Richard DeMille (born August 23, 1943) is an American author of action adventure and suspense novels.
 His novels include "Plum Island", "The Charm School", and "The Gold Coast".
 DeMille has also written under the pen names Jack Cannon, Kurt Ladner, Ellen Kay and Brad Matthews.
Mythic fiction is literature that is rooted in, inspired by, or that in some way draws from the tropes, themes and symbolism of myth, legend, folklore, and fairy tales.
 The term is widely credited to Charles de Lint and Terri Windling.
 Mythic fiction overlaps with urban fantasy and the terms are sometimes used interchangeably, but mythic fiction also includes contemporary works in non-urban settings.
 Mythic fiction refers to works of contemporary literature that often cross the divide between literary and fantasy fiction.
Jack, the Giant Killer (1987) is a contemporary fantasy novel by Charles De Lint.
 The book is set in present-day Ottawa (where de Lint himself lives), but incorporates many elements of fantasy, folklore, and myth.
Plum Island is a 1997 novel by American author Nelson DeMille.
 This is the first novel to feature recurring character, detective John Corey.
 Plum Island is followed by the 2000 novel, The Lion's Game.
Galad Elflandsson (born 1951) is a Canadian fantasy writer.
 In the 1980s, Elflandsson was a member of a group of fantasy writers who met at the House of Speculative Fiction bookstore in Ottawa, Ontario, Canada, which he also managed.
 Other members of the group included Gordon Derevanchuk, Charles de Lint, Charles R. Saunders and John Bell.
 The group hosted the 10th World Fantasy Convention in 1984.
 Elflandson's novel, "The Black Wolf", was published by Donald M. Grant, Publisher, Inc. in 1979.
Charles de Lint (born December 22, 1951) is a Canadian writer of Dutch origins.
 In 1974 he met MaryAnn Harris, and married her in 1980.
 They live in Canada.