The Book of Air and ShadowsA clever, pacey thriller set around the search for a lost Shakespearean play. Tap tapping the keys and out come the words on this little screen, and who will read them I hardly know. I could be dead by the time anyone actually gets to read them, as dead as, say, Tolstoy. Or Shakespeare. Does it matter, when you read, if the person who wrote still lives? These are the words of Jake Mishkin, whose seemingly innocent job as an intellectual property