Alan Dean Foster 
Icerigger 

Far out on the frozen outer limits of the thranx/humanx Commonwealth, on the permafrosted plant of Tran-ky-ky, lay the chilly trading outpost of Brass Monkey.Inward bound on the interstellar transport Antares, Ethan Frome Fortune, space travelling salesman with a neat line in perfumes, jewelled knick-knacks and up market gadgetry, ran into grizzled, galactic hell raiser Skua September for the first time. Kidnapped, knocked unconscious and crash landed — all quite accidentally — they were about to find out that life on the sub- zero wasteland was full of incident. Bored they would not be. Dead they might well be — particularly if Sagyanak, Chief of the nomadic Horde, could lay hands on them. The great adventure has just begun and early retirement was not an option.