Something is amiss at the local village school.A man is seen lingering outside the gates - and parents and teachers are getting worried . . .Joshua Baldwin doesn't think he's doing any harm. With no family of his own, he just gets a bit lonely.Piercy tracks him down and warns him off. He's definitely weird. But harmful? She doesn't think so.Then five-year-old Madeleine Wiltshaw goes missing.It's the last day of term before Easter. No one saw her...