"For nine hundred years, Precious Auntie's family had been bonesetters. That was the tradition. Her father's customers were mostly men and boys who were crushed in the coal mines and limestone quarries. He treated other maladies when necessary, but bonesetting was his specialty. He did not have to go to a special school to be a bone doctor. He learned from watching his father, and his father learned from his father before him. That was their inheritance. They also passed along the secret location for finding the best dragon bones, a place called the Monkey's Jaw. An ancestor from the time of the Sung Dynasty had found the cave in the deepest ravines of the dry riverbed. Each generation dug deeper and deeper, with one soft crack in the cave leading to another farther in. And the secret of the exact location was also a family heirloom, passed from generation to generation, father to son, and in Precious Auntie's time, father to daughter to me."