The USA Today and Wall Street Journal Bestseller! Lily's gone. Someone took her. Unless she was she never there... A little girl has gone missing. Lily was last seen being tucked into bed by her adoring mother, Nova. But the next morning, the bed is empty except for a creepy toy rabbit. Has Nova's abusive ex stolen his "little bunny" back for good? At first, Officer Ellie James assumes this is a clear custody battle. Until she discovers that there are no pictures of the girl and her drawers are full of unused toys and brand new clothes that have never been worn... Is Ellie searching for a missing child who doesn't actually exist?