Moving to New York was supposed to be temporary. After moving in with her uncle, Richard Castle, fourteen-year-old Y/N is trying to adjust to a new city, a new school, and a family she barely knows. But when she witnesses a murder and becomes connected to a dangerous secret, her life is turned upside down. As Detective Beckett and the 12th Precinct investigate the case, strange messages, suspicious strangers, and hidden clues begin to follow Y/N wherever she goes. With danger getting closer and secrets lurking around every corner, she'll have to decide who she can trust before it's too late. Living under Castle's roof was supposed to be the safe option. Apparently, nobody told trouble that.