"Escape Velocity" by Charles L. Fontenay is a science fiction novel written during the mid-20th century. The book centers on the intense psychological and physical struggle between two astronauts, Kraag and Jonner, who find themselves stranded on an asteroid after a crash. As the pair confront the brutal realities of survival, the underlying themes of betrayal, fear, and the instinct for self-preservation come to the fore. The narrative unfolds as Kraag, motivated by a desire to eliminate competition, murders their navigator Stein to ensure that he can outlast Jonner until rescue arrives. As Jonner realizes that survival is not guaranteed and that Kraag intends to kill him, he employs both cunning and adaptability. The conflict escalates into a deadly game of cat and mouse, with each character employing physical and psychological tactics to gain the upper hand. The novel explores the characters' motivations, ultimately revealing a tragic irony when Jonner uses Kraag’s own bullets to execute a lethal plan that takes advantage of the unique environment of the asteroid. The story culminates in a poignant commentary on the extremes of human nature when survival is at stake. (This is an automatically generated summary.)