Space Prison by Tom Godwin, Science Fiction, Adventure 12+

📕 DOOMEDCrushing 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! AFTER TWO CENTURIES....The sound came swiftly nearer, rising in pitch and swelling in volume. Then it broke through the clouds, tall and black and beautifully deadly--the Gern battle cruiser, come to seek them out and destroy them.Humbolt dropped inside the stockade, exulting. For two hundred years his people had been waiting for the chance to fight the mighty Gern Empire ... ... with bows and arrows against blasters and bombs!