“One must always be careful of books and what is inside of them, for words have the power to change us” – Cassandra Clare   As a bookseller I often saw the nervousness that accompanied parents looking at the shelves in the ‘Young Adult’ section with their young tween. Many of these books are unfamiliar – there is less of the solidity of the classics that are a constant presence in the younger sections. Gone are the Pevensie children, talking spiders and chocolate factories. We are into a world of mazes and deadly games, first loves and heartbreak, murders and apocalypses, and find books that deal more explicitly with issues…