Intensity Author:Dean R. Koontz, Dean R. Koontz In the space of 24 hours, self-proclaimed "homicidal adventurer" Edgar Foreman Vess sets out to murder everyone in the home of Chyna Shepherd. But a drive even stronger than survival spurs Chyna to unexpected heights of courage and daring, thrusting her into a deadly confrontation with a remorseless, relentless killing machine. HC: Alfred A. Knopf.