In order to stay human, Audrey has built a moat around herself; a moat of books, music and dreams. It makes her different from the echoes: the sophisticated, emotionless machines, built to resemble and work for the humans. Daniel is an echo, but he's not like the others. He has feelings he was never designed to have, and cannot explain. And when Audrey is placed in danger, he's determined to save her.
