The Survivors — Tom Godwin

Crushing gravity. Thin air. Winters of unimaginable cold Searing summers under two suns. A deadly wasteland teeming with monsters and killing fever. That was Ragnarok, the most dreaded planet yet discovered. And Ragnarok was where a thousand untrained Earthmen -- and women and children -- were brutally marooned by a sadistic enemy. Two hundred died the first night. In the morning, the survivors knew what they must live for...revenge!