The manless worlds refer to planets or areas that do not have any human inhabitants. These desolate places are often characterized by harsh environmental conditions and lack of resources for sustainable living. They serve as a reminder of the fragility of human existence and the impact of our actions on the world.

Pirates of Venus is a science fiction novel by Edgar Rice Burroughs. It is the second book in the Venus series, following his previous book, Carson of Venus. The book follows protagonist Carson Napier as he discovers the planet Venus and encounters various adventures. Along the way he meets a wild variety of creatures such as man-eating plants and the bird-humanoid Amtorians. He also encounters vicious human pirates who attempt to capture him or sabotage his efforts.

The Stranger is a novel by Albert Camus about Meursault, a French Algerian, who kills a man and struggles to find meaning in a seemingly absurd world. He faces judgment and ultimately accepts his fate, realizing the indifference of the universe.