The book was published in January 2011 by Gollancz and is an omnibus called Conan’s Brethren. It contains tales of Solomon Kane, King Kull, Bran Mak Morn and others. It’s a thick book, but very lightweight.
The Dark Man and Others is a posthumously-published anthology of fifteen short stories by American author Robert E. Howard, named after his short story “The Dark Man”, and covering the genres of adventure fiction, horror, historical fiction, fantasy, sword and sorcery, weird fiction and the weird West. It was first published in 1963 by Arkham House, and was edited by August Derleth.
Eleven of the stories had previously been published in the pulp magazine Weird Tales, and one each in Argosy, Oriental Stories and Strange Tales.
This second edition from 1977 edition added one story and included dust-jacket and illustrations by Marcus Boas.
Marchers of Valhalla is a collection of three Fantasy novelettes by Robert E. Howard. It was first published in 1972 by Donald M. Grant, Publisher, Inc. in an edition of 1,654 copies with two stories.