Three-part documentary series about fantasy fiction, which has become one of the biggest-selling genres in publishing thanks to JK Rowling's Harry Potter books and Philip Pullman's His Dark Materials trilogy. This part explores the changing role of child heroes and heroines, from Peter Pan to Harry Potter, and asks why they have such an enduring appeal to writers of fiction for all ages. With contributions from writers including Pullman, Alan Garner, Will Self and Alasdair Gray.