"Dearest Enemy" by Fox B. Holden is a science fiction novel likely penned in the mid-20th century, specifically during the 1950s. The book explores themes of isolation, war, and the human condition amid the backdrop of space exploration and an escalating cold war. It delves into the psyche of a soldier trapped in a space mission gone awry, emphasizing the consequences of conflict amidst vast, unforgiving space. The story follows Major Joshua Thorn, who finds himself aboard Vanguard-I, a spacecraft designed for observational purposes. After a catastrophic event leads to the obliteration of humanity on Earth, Thorn grapples with the surreal reality of being potentially the last human alive. As he struggles with grief and despair, he discovers a new land on Venus, only to encounter another human, an enemy soldier. In a moment that encapsulates the cruel irony of war, Thorn is forced to confront his conditioning as he ultimately kills the stranger, solidifying the grim fate of his own kind. The novel raises profound questions about loyalty, identity, and what it means to be human when faced with annihilation. (This is an automatically generated summary.)