The theme of The Changing Land is the death & rebirth of the universe & the meddling of the Elder Gods in human, elvish & demonic affairs. Some of the characters, such as Dilvish the Damned & his hell-horse, Black, spring fully-formed onto the pages. They were actually born in earlier short stories, collected in Dilvish, the Damned. It might be easier to read Dilvish, the Damned before diving into The Changing Land because the latter fantasy...