“Book Descriptions: "Exile of Atlantis" is a short story by Robert E. Howard and is the first story written by Howard to feature his creation Kull, set in his fictional Thurian Age.
It is effectively a prequel to the other Kull stories, detailing the events that led Kull to be exiled by his tribe, as well as foreshadowing Kull's future as a great king through the use of a prophetic dream. It also shows that Kull's rebelliousness against stifling old laws and traditions long antedated his becoming King of Valusia, and that he was very much an outsider even in his earlier life in Atlantis.
This story would not be published until 1967, in the Lancer book, King Kull.” DRIVE