Jemma knows who did the murder. She knows because he told her. And she can't tell anyone.Fourteen-year-old Jemma has severe cerebral palsy. Unable to communicate or move, she relies on her family and carer for everything. She has a sharp brain and inquisitive nature, and knows all sorts of things about everyone. But when she is confronted with this terrible secret, she is utterly powerless to do a...