 Anderson set much of his work in the past, often with the addition of magic or in alternate or future worlds that resemble past eras.A specialty was his ancestral Scandinavia, as in his novel versions of the legends of Hrólf Kraki ("Hrolf Kraki's Saga") and Haddingus ("The War of the Gods").Frequently he presented such worlds as superior to the dull, over-civilized present.