There are only a few things in life Catherine Ling cares for. One is her son. Kidnapped when he was only two, she has only recently been reunited with him and the vow of her heart is never to let him face danger again. The other is her mentor, Hu Chang. Mysterious, brilliant, and deadly, Hu Chang taught Catherine everything she knows and she is loyal to him. Now, Hu Chang is calling Catherine to a new task: rescue an imprisoned journalist in Tibet - a woman who has been subjected to unspeakable horrors.