Book four of the Majipoor
Exiled from Castle Mount by the Coronal to the far continent of Zimroel, Prince Harpirias faces a grim future until, one day, he is offered the chance of redemption.
He is to lead an expedition is search of a party of scientists who have been captured by a savage lost tribe. He must then negotiate for the safe return of the scientists. But the tribe live beyond the Nine Sisters mountain range in a land of furious blizzards and rivers of ice and they are expecting to treaty with the Coronal himself.
And Harpirias, at the head of his tiny party of brawny Skandars and Ghayrogs and guided by Shapeshifter Korinaam, is no Coronal.