Control Group

A 1950s science fiction novella that asks what happens to human identity when it's been shaped by alien hands for centuries. Navigator Farrell and his crew from Terran Reclamations land on Alphard Six, a world once ruled by the enigmatic Hymenops, expecting to find abandoned alien territory. Instead, they encounter descendants of a lost Terran expedition, humans who have lived under alien conditioning for so many generations that they've forgotten where they came from. The crew must navigate hostility, survive a crash, and ultimately confront an unsettling truth: these people aren't prisoners of the Hymenops, they've become something else entirely, something born from centuries of adaptation and belief. The story builds to a quiet, unsettling revelation about the nature of identity, memory, and what it means to be human when your history has been rewritten by another species. Aycock crafts genuine tension from the question of whether the Hymenops were oppressors or saviors, and whether these isolated humans are lost or found. A compact, thoughtful piece of mid-century SF that rewards patient readers.