Robert E. Howard created the character Cormac Mac Art. The author Andrew J. Offutt continued the adventures of Cormac by writing his own stories. As far as I know, he wrote 6 novels about Howard’s hero.

In this Zebra book from 1975, Cormac and his faithful comrade Wulfhere Skull-splitter, are hurled through a swirling maelstrom to a faraway shore. There, Cormac joins up with Princess Samaire and sets out to regain a throne.