Lady Twilight notes that there is something peculiarly familiar about Grace's face, and asks who Grace's mother was. Grace says she doesn't know: she and her mother were kidnapped by Dunkirks and separated ten years ago; all she knows is that her mother was an English gentlewoman. Lady Twilight realizes that Grace is her true daughter; in fact, she is wearing an earring that Lady Twilight gave her when she was a baby. Philip is horrified to learn that he has been sleeping with his sister. Lady Twilight tells Philip that his sin of incest was committed in ignorance, so it can be forgiven. Lady Twilight and Grace exit.