NEW YORK TIMES BESTSELLERUsing a restricted FBI database, genetic researcher Jeanie Ferrami has located identical twins born to different mothers. Frightened by her bizarre discovery, she is determined to discover the truth at any cost--until she finds herself at the center of a scandal that could ruin her career. To extricate herself, Jeannie plunges into a maze of hidden evidence. With growing horror, she uncovers a cynical, far-reaching conspiracy involving disturbing genetic experiments and some of the most powerful men in America--men who will kill to keep their secrets concealed.