"Enchantress from the Stars" by Sylvia Engdahl is a science fiction novel published in 1970. The story follows Elana, a young member of an advanced space-faring civilization, who is sent to a primitive planet called Andrecia to help guide its people towards a peaceful future. Elana must disguise herself as a native of Andrecia and work with a team of scientists to help the planet's people overcome their violent tendencies and establish a stable society. Along the way, she meets a young man named Georyn, who becomes both her friend and her greatest challenge as she struggles to balance her duty to her mission with her growing feelings for him. The novel explores themes of cultural relativism, the nature of power and control, and the importance of empathy and understanding in creating a better world.