Keep Out

Fredric Brown's 1954 masterpiece of quiet horror opens on humanity's first Martian colony, where a group of children raised on daptine have been genetically engineered to survive the red planet's cruelty. They've never known Earth. They've never known anything but Mars. When they finally learn the truth of their origins, the adults who raised them expect gratitude, pride, the fulfillment of a grand scientific destiny. Instead, the children see their caretakers as something lesser: soft, dependent, earthbound. The final scene pulses with terrible clarity as the first generation of true Martians prepare to step onto the surface they were born to claim and decide, with terrible calm, that the old world must die. Brown builds dread through cheerful narration and simple prose, letting the reader arrive at the horror at the same moment the adults do. It's a sharp, brutal fable about what happens when you engineer a generation to believe they belong somewhere else entirely.