Marker

The master of the medical thriller returns with his most heart-pounding tale yet.Twenty-eight-year-old Sean McGillin is the picture of health, until he fractures his leg while in-line skating in New York City's Central Park. Within twenty-four hours of his surgery, he dies.A thirty-six-year-old mother, Darlene Morgan, has surgery to repair a torn ligament in her knee. And within twenty-four hours, she is dead.New York City medical examiners Dr. Laurie Montgomery and Dr. Jack Stapleton are back,