"Sword of the Seven Suns" by Gardner F. Fox is a science fiction novel written in the mid-20th century. The story unfolds in a dark, fragmented world where the remnants of a once-great civilization are threatened by chaos and barbarism. The main character, Flane, grapples with his heritage as he strives to reactivate a revered Machine-God, sought by factions of Klarn, to restore order and unity to the land. The opening of "Sword of the Seven Suns" introduces a precarious situation where Flane finds himself amidst the wreckage of a spaceship and a mysterious sword. As the narrative progresses, flashes of his lineage and the societal factions battling for control come to light, including the power struggles between the noble "dulars" and the barbaric Darksiders. Flane's journey propels him forward as he navigates treacherous relationships, personal conflict, and the quest for a key to revive the lifeblood of Klarn—the Machine—while also accommodating a romantic subplot with the fiery-haired Aevlyn. The tumultuous atmosphere sets the stage for an adventure beset by loyalty, betrayal, and the fight for freedom against overwhelming odds. (This is an automatically generated summary.)