Katia is the 1859 novel by Leo Tolstoy. The story is about young wife and her much older husband that come to realize they want different things out of life. There are ideals of happiness are not the same. The tone of the book is set but the opening line. "We were in mourning for our mother, who had died the preceding autumn, and we had spent all the winter alone in the country--Macha, Sonia and I."