Three Worlds to Conquer

Mark Fraser was a scientist, not a soldier; he had chosen his life as a communications specialist on Ganymede, his wife and children with him, his project an attempt to reach and talk with the strange methane-and-ammonia quadrupeds who lived on the high-pressure hell of Jupiter's surface. When a renegade Earth traitor landed his ship on Ganymede, Fraser found himself involved in a sudden, suicidal war. His fellows were defeated. Earth itself was threatened. Yet Fraser found his thoughts goi...