The narrative unfolds in a desolate, war-torn world where two races—the Terrapins and the Bird-People—struggle for survival amidst mechanical predators. The story follows Torcred, a Terrapin warrior, who encounters Ladna, a bird-girl, after shooting down her flying machine, and must confront moral dilemmas as he navigates their fraught relationship against the backdrop of cultural conflict and personal transformation. At the start of the novel, readers are introduced to a tense scene where Torcred races through the desert in his combat vehicle, the Terrapin, only to come under attack from a Bird-People aircraft. After a harrowing chase and skirmish, he shoots down the enemy plane, discovering Ladna, the pilot, among the wreckage. Rather than killing her, Torcred decides to take her prisoner, setting off a series of events that force both characters to grapple with their prejudices and the shifting dynamics between their peoples. As they journey together through the desert, their relationship evolves against the backdrop of a larger conflict involving their respective races and the predatory machines that threaten them all.



Robert Harwood Abernathy (June 6, 1924 – April 6, 1990) was an American science fiction author and educator who was predominantly active during the Golden Age of science fiction in the 1940s and 1950s.