Meet Carl: cruel, fun, exciting a bit older than you, and totally in control. Your best friend Ollie likes Carl maybe even more than he likes you. You don't want to lose Ollie, so you tag along: playing Carl's games, doing what he says, getting into trouble. But how far will Carl go before he stops? And just how bad does he have to get before you say No?

Bad Influence 2015, Bloomsbury U.S.A. Children's Books, New York

ISBN-13: 9781408836538

Trade paperback

Bad Influence 2005, Penguin Books Ltd, London

ISBN-13: 9780140283693

Mass-market paperback

Bad Influence 2004, Hamish Hamilton

ISBN-13: 9780241141403