The Space Between by Brenda Yovanoff
As the daughter of Lucifer and Lilith, Adam's first wife, Daphne struggles with her true place. She escapes from Hell to find her brother who ran away to the real world. William Butler Yeats's poem "The Second Coming" is mentioned in the novel, and that poem's themes of good versus evil reflect the ideas of good and evil that play out in the story. Even though she is from Hell, Daphne has the potential to do good.