'A Pair of Blue Eyes' is a novel by Thomas Hardy. The book describes the love triangle of a young woman, Elfride Swancourt, and her two suitors from very different backgrounds. Stephen Smith is a socially inferior but ambitious young man who adores her and with whom she shares a country background. Henry Knight is the respectable, established, older man who represents London society. Although the two are friends, Knight is not aware of Smith's previous liaison with Elfride.