The ginger star : book one of the Book of Skaith

1979 DEL REY mass market paperback, Leigh Brackett (The Long Tomorrow). Eric John Stark, Outlaw of Mars, travels beyond the solar system for exciting science fantasy adventures on the planet of Skaith, a lawless sphere at the edge of the known universe. Raised as a savage on the hostile planet of Mercury and honed into a fearless warrior in the low canals of the Red Planet, Stark is one of science fiction's greatest adventurers and is Leigh Brackett's most famous character. In The Ginger Star, Simon Ashton, Stark's foster father, has been kidnapped by the Lords Protector, and only Stark can rescue him! - Amazon An Eric John Stark Adventure Volume 1 of the "Book of Skaith"