After Lucas’s sister mysteriously disappeared ten years ago, his family was torn apart. His mother has been lost in a deep depression ever since, his father has been unable to speak of what happened and Lucas has been trapped in his guilt . . . until he receives a note that changes everything.
Lucas has twenty-one days to find out the truth about what happened to his sister, and save her life . . . . if she really is still alive.
Open one sealed letter each day and experience the mystery as a real-time countdown