I'm pretty sure Leigh Brackett's Eric John Stark books have not been forgotten. They're still in print, and pretty easy to find. But these Steranko cover editions from 1974 aren't seen much anymore.
Near as I can tell, Stark first appeared in a series of novellas in the pulp Planet Stories beginning in 1949. This 1974-1976 trilogy from Ballantine was a reintroduction of the character, leaning more toward fantasy than the earlier space operas. Geez, maybe I should read them one of these days.
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