ChockyNew to Penguin Modern Classics, to tie in with the release of the Steven Spielberg film, and with a new introduction by Brian Aldiss. Matthew's parents are worried. At eleven, he's much too old to have an imaginary friend, yet they find him talking to and arguing with a presence that even he admits is not physically there. This presence Chocky causes Matthew to ask difficult questions and say startling things; he speaks of complex mathematics and