Four-Day Planet

Four-Day Planet, published in 1961, is a science fiction adventure set on Fenris, a planet with extreme tidal conditions and a harsh four-day-long rotation. The story follows teenage journalist Walt Boyd as he becomes involved in a political and ecological crisis centered around the local economy’s dependence on a single industry. Piper blends action, world-building, and social commentary, highlighting themes of environmental fragility, journalism, and resistance to corporate greed. The novel is a brisk, thoughtful tale from a classic voice in mid-century sci-fi.