The Wings of the Dove

By Henry James

From Wikipedia: The Wings of the Dove is a 1902 novel by Henry James. It tells the story of Milly Theale, an American heiress stricken with a serious disease, and her effect on the people around her. Some of these people befriend Milly with honourable motives, while others are more self-interested. Plot summary:

Kate Croy and Merton Densher are two betrothed Londoners who desperately want to marry but have very little money. Kate is constantly put upon by family troubles, and is now living with her domineering aunt, Maud Lowder. Into their world comes Milly Theale, an enormously rich young American woman who had previously met and fallen in love with Densher, although she has never revealed her feelings. Her travelling companion and confidante, Mrs. Stringham, is an old friend of Maud. Kate and Aunt Maud welcome Milly to London, and the American heiress enjoys great social success…….