Perfect for fans of Michael Grant & Charlie Higson this thrilling novel about a mysterious virus spreading through a boarding school is like 28 DAYS LATER meets ASSAULT ON PRECINCT THIRTEEN. Who will turn silver next? When a boy is bitten by a strange silver beetle he becomes the first victim of a mysterious infection. But this is no ordinary virus. It turns flesh into metal & pupils into machines. As the virus spreads & more terrifying blood-thirsty machines appear a small group manage to barricade themselves inside the school Can they keep the machines at bay long enough for help to arrive? Is help even coming? Meanwhile the virus is spreading & its vctims are changing...evolving...becoming stronger... The world as our heroes know it is turning silver. Will any of them survive?