The narrative centers on Sara Crewe, a remarkably imaginative seven-year-old girl brought from India to a select boarding school in London by her wealthy father. Gifted in languages and storytelling, Sara is treated as a favored pupil and petted by the headmistress, Miss Minchin. She forms deep bonds with her classmates, especially the timid Ermengarde and the neglected scullery maid, Becky, while nurturing a rich inner life centered around her doll, Emily.
The plot takes a tragic turn on Sara's eleventh birthday when news arrives that her father has died ruined by failed diamond investments. Stripped of her status, her fortune, and her possessions, Sara is cast out of her comfortable rooms and relegated to a cold, dreary attic as an unpaid drudge. Despite facing harsh labor, meager rations, and relentless cruelty from Miss Minchin and the kitchen staff, she maintains her dignity by pretending she is a princess in disguise, enduring hardships the way a brave soldier would.
Her quiet resilience sustains her through intense loneliness and physical suffering, though she secretly shares what little she has with others, including a starving street child. Meanwhile, a mysterious wealthy neighbor moves in next door—a man haunted by guilt over the very financial ruin that destroyed Sara's father. Unbeknownst to Sara, this neighbor's faithful servant discovers her plight and begins secretly transforming her bare attic into a haven of warmth and comfort.
As the winter passes, the secret benefactor continues to provide clothing, food, and books, bringing a touch of magic back into Sara's difficult existence. Though the mystery of her benefactor remains unsolved for a time, her spirit remains unbroken. The narrative builds toward a poignant resolution where the past catches up with the present, promising a restoration of her rightful place and a joyful end to her trials.