I Will Ruin YouIn the latest novel from New York Times bestselling author Linwood Barclay, a teachers act of heroism inadvertently makes him the target of a dangerous blackmailer who will stop at nothing to get what he wants. How would you react in a life or death situation? Its a question everyone asks themselves, but few have to face in real life. English teacher Richard Boyle certainly never thought he would find himself talking down a former student intent on