House of Stairs by William Sleator

The provided text consists of excerpts from the novel House of Stairs by William Sleator, which tells a chilling science fiction story. The narrative centers on five sixteen-year-old orphans—Peter, Lola, Blossom, Abigail, and Oliver—who are involuntarily placed in a bizarre structure consisting only of endless, unrailed stairs as subjects for a psychological experiment. The primary conflict revolves around a food machine that conditions their behavior through variable reinforcement, demanding a complex "dance" or ritual and eventually rewarding them for inflicting emotional or physical pain on one another. Ultimately, two of the participants, Lola and Peter, attempt to resist the conditioning despite the lure of food and the cruelty of the others, before they are all removed from the environment and the experiment's disturbing objectives are revealed by a doctor aiming to create unquestioningly obedient operatives for governmental security and defense roles.