Eastcastle, England in the late 1990s is a peaceful, rural community where children disappear into wheat fields to play until nightfall. There are no mobile phones and no cause to worry. For families, its a place that allows the ultimate freedom, and this is the way eleven-year-old Thera Wilde and her friends are brought up: free.So when Theras best friend goes missing, Thera assumes Billie is off on another adventure. Then detectives come to question...