From the Sea to the Stars

Two complete novels by one of science fiction's greatest storytellers. This is the first time both novels have appeared in one volume.
Sea Siege: The nuclear war had come at last and the research team on an island in the West Indies thought they had been lucky to survive. But survival was going to require more than luck when they found themselves under attack by sea creatures out of darkest legend, directed by a previously unknown intelligence from the depths of the sea which was determined to eliminate mankind as a competitor and seize what was left of the world for itself.
Star Gate: Long ago, the Star Lords had come from a dying Earth and settled on the Earthlike planet Gorth where they helped the inhabitants build a civilization. But now the native folk of Gorth have grown resentful and jealous of the Star Lords, who have refused to share their secrets of immortality and their powerful weapons - technology which led to the loss of Earth. Though some of the Star Lords are preparing to resume wandering among the stars, others cannot bear to leave their adopted world and instead travel through an interdimensional gate to another Gorth in a parallel universe. And when they find that in this universe the Star Lords from Earth came as conquerors and enslaved the people of Gorth, their course is clear. They must battle their counterparts to free Gorth - even if it means their own destruction.