"The explosive new medical thriller from New York Times-bestselling author Robin Cook. After a young, seemingly healthy woman collapses suddenly on the NYC subway and dies by the time she reaches the hospital, her case is initially chalked up to a virulent strain of influenza. That is, until she ends up on Dr. Jack Stapleton's autopsy table, where Jack discovers something eerily fishy: First, that the young woman has had a heart transplant, and second,...