New Moon is a romantic fantasy novel by author Stephenie Meyer, and is the second novel in the Twilight series. The novel continues the story of Bella Swan and vampire Edward Cullen's relationship. When Edward leaves Bella after his brother attacks her, she is left heartbroken and depressed for months until Jacob Black becomes her best friend and helps her fight her pain. However, her life twists once more when Jacob's nature reveals itself and Edward's sister decides to visit.