Hyperborea (collection)

Hyperborea is a collection of fantasy short stories by Clark Ashton Smith, edited by Lin Carter. It was first published in paperback by Ballantine Books as the twenty-ninth volume of its Ballantine Adult Fantasy series in April 1971. It was the second themed collection of Smith's works assembled by Carter for the series. The stories were originally published in various fantasy magazines from the 1930s to the 1950s, notably Weird Tales.

The book collects one prose poem and ten tales of the author's Hyperborean cycle, set on a prehistoric lost northern continent Smith named for the mythological land of Hyperborea, with an introduction and map by Carter. One story from the sequence, the fragment "The House of Haon-Dor," is omitted. The editor also includes in the collection four additional tales of Smith's from what he took to be a similar but more fragmentary sequence of stories.