Then a terrifying reality sets in: her daughter is missing.Days earlier, Estelle discovered her baby’s crib empty in their Brooklyn apartment. There was no sign of a break-in, but all traces of seven-month-old Mia had disappeared. Her diapers, her clothes, her bottles—all gone. Frustrated and unable to explain her daughter’s disappearance, Estelle begins a desperate search. But when the lack of evidence casts doubt on her story, Estelle becomes the number one suspect in the eyes of the police and the media.As hope of reuniting with Mia becomes all she has left, Estelle will do anything to find answers: What has she done to her baby? And what has someone else done to her?

    But on Miranda’s twelfth birthday, Billy has a mysterious falling-out with her mother and suddenly disappears from Miranda’s life. She doesn’t hear from him again until sixteen years later when she receives unexpected news: Billy has died and left her Prospero Books, which is teetering on bankruptcy—and one final scavenger hunt.