Fear is contagious! The No.1 bestselling internet sensation. Now in an updated edition with exclusive new material. A terrifying enigma -- with the power to destroy! Twenty years ago, Kate Maddox was a volunteer at research centre where scientists hunted for a cure for the common cold virus. That summer, Kate fell in love with a handsome young doctor, Stephen, but her stay ended in his tragic death and Kate fled to a new life in the US. Now Kate is back in England and on the run with her young son, this time from her vile husband. But a chance encounter sets her on a terrifying path of discovery. What really happened at the Cold Research Unit two decades ago?