De Lysle Ferrée Cass was a writer of fantasy short stories

Short Stories

Short Stories may refer to:*A plural for Short story*Short Stories , an American pulp magazine published from 1890-1959*Short Stories, a 1954 collection by O. E...

. His stories appeared in pulp magazines including The All-Story, The Smart Set

The Smart Set

The Smart Set was a literary magazine founded in America in March 1900 by Colonel William d'Alton Mann.-History:Mann had previously published Town Topics, a gossip rag which he used for political and social gain among New York City's infamous elite known as "The Four Hundred." With The Smart Set,...

and College Life. His novel, As it is Written

As it is Written

As it is Written is a fantasy novel by De Lysle Ferrée Cass inadvertently published under the pseudonym "Clark Ashton Smith". It was first published in 1982 by Donald M. Grant, Publisher, Inc. in an edition of 1,200 copies, all of which were signed by the illustrator. The book includes an...

, was published by Donald M. Grant, Publisher, Inc. in 1982 under the inadvertent pseudonym "Clark Ashton Smith". The manuscript for the novel was discovered in the files of The Thrill Book magazine and mistakenly believed to be the work of Clark Ashton Smith

Clark Ashton Smith

Clark Ashton Smith was a self-educated American poet, sculptor, painter and author of fantasy, horror and science fiction short stories. He achieved early local recognition, largely through the enthusiasm of George Sterling, for traditional verse in the vein of Swinburne...

using Cass as a pseudonym. After the novel was published, the mistake was discovered.