This is another novel with succes by Robin Cook. First ofall I Congrats to Cook writing such a fine book. This is the best selling. An intresting thriller novel. He built suspense so gradually from very beginning of this novel and by the last some of the chapters confused me that what is going on. As in all thriller novels or books the suspence are made till end of the chapters. yet the reader has no idea of that who is the real culprit or assains is until the very end. Robin Cook pulls all its character wonderfully and well.