Margaret Gabrielle Vere Long, who used the pseudonyms Marjorie Bowen, George R. Preedy, Joseph Shearing, Robert Paye, John Winch, and Margaret Campbell or Mrs. Vere Campbell, was a British author who wrote historical romances and supernatural horror stories, as well as works of popular history and biography.

Arkham House was an American publishing house specializing in weird fiction. It was founded in Sauk City, Wisconsin, in 1939 by August Derleth and Donald Wandrei to publish hardcover collections of H. P. Lovecraft's best works, which had previously been published only in pulp magazines. The company's name is derived from Lovecraft's fictional New England city, Arkham, Massachusetts. Arkham House editions are noted for the quality of their printing and binding. The colophon for Arkham House was designed by Frank Utpatel.