In a future where humanity has colonized other planets, the story follows a group of space explorers who stumble upon an ancient alien city on a distant planet. The city holds secrets and technology that could change the course of human history. As they explore the city, they discover evidence of a long-lost civilization that possessed advanced knowledge and capabilities far beyond those of humanity. However, their presence is not without consequence, as they soon realize that they are not alone on the planet. The explorers must navigate the complexities of intergalactic politics and confront the consequences of their own actions in order to uncover the truth about the city and its secrets. Along the way, they encounter strange creatures and technologies that challenge their understanding of the universe and their place within it. Ultimately, the story raises questions about the nature of humanity's relationship with technology and the cosmos, and whether we are truly alone in the universe.
By Mack Reynolds · First published 1963 · Genre: Science Fiction, Social Commentary, Political Fiction