"Planet in Reverse" by Henry Guth is a science fiction narrative written in the mid-20th century. The book explores themes of time, love, and the conflicting nature of reality as experienced by the protagonist. Set against a bizarre backdrop of a planet where time operates in reverse, the story delves into the complexities of relationships and existential questions regarding memory and identity. The plot centers around Darrel Bond, an astronaut who ventures off the established freight lanes to explore Neptune, a forbidden planet shrouded in mystery. Upon arrival, he encounters Leyloon, a beautiful yet enigmatic girl who moves backward in time, embodying the planet's peculiar nature. As Darrel grapples with the strangeness of his surroundings, he falls in love with Leyloon, only to discover that she is caught in a time-stream that moves in the opposite direction from his own. The narrative unfolds as Darrel attempts to understand their peculiar connection and the implications associated with a possible escape from Neptune, leading to a poignant climax that explores themes of love and the irreversible nature of time. (This is an automatically generated summary.)