Follies occasionally appear in literature, but seldom in works aimed at a younger readership. So it was hugely exciting to find that one of Britain’s best-loved writers of children’s fiction had featured a folly in a recent work. This year, a new work by the acclaimed writer Dame Jacqueline Wilson (100 plus books and counting) was published. The Girl Who Wasn’t There is a ghost story within a tale of family life and is beautifully illustrated by Rachael Dean. The reader is only a few pages in when young Luna and Aurora are first introduced to the dilapidated Stark’s Folly, somewhere on the south coast of England…